1871-1U-06B(01-02).

fm 1 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ENGINE 01SECTION

01-02
Toc of SCT
ON-BOARD DIAGNOSTIC EMISSION SYSTEM
[L3 WITH TC] . . . . . . . . . . . . . 01-02 [L3 WITH TC] . . . . . . . . . . . . . 01-16
SYMPTOM TROUBLESHOOTING CHARGING SYSTEM
[L3 WITH TC] . . . . . . . . . . . . . 01-03 [L3 WITH TC] . . . . . . . . . . . . . 01-17
MECHANICAL IGNITION SYSTEM
[L3 WITH TC] . . . . . . . . . . . . . 01-10 [L3 WITH TC] . . . . . . . . . . . . . 01-18
LUBRICATION STARTING SYSTEM
[L3 WITH TC] . . . . . . . . . . . . . 01-11 [L3 WITH TC] . . . . . . . . . . . . . 01-19
COOLING SYSTEM CRUISE CONTROL SYSTEM
[L3 WITH TC] . . . . . . . . . . . . . 01-12 [L3 WITH TC] . . . . . . . . . . . . . 01-20
INTAKE-AIR SYSTEM CONTROL SYSTEM
[L3 WITH TC] . . . . . . . . . . . . . 01-13 [L3 WITH TC] . . . . . . . . . . . . . 01-40
FUEL SYSTEM TECHNICAL DATA
[L3 WITH TC] . . . . . . . . . . . . . 01-14 [L3 WITH TC] . . . . . . . . . . . . . 01-50
EXHAUST SYSTEM SERVICE TOOLS
[L3 WITH TC] . . . . . . . . . . . . . 01-15 [L3 WITH TC] . . . . . . . . . . . . . 01-60
Toc of SCT
01-02 ON-BOARD DIAGNOSTIC [L3 WITH TC]
ON-BOARD DIAGNOSTIC Diagnostic Monitoring Test Results
WIRING DIAGRAM[L3 WITH TC] . . . . . 01-02–3 Access Procedure . . . . . . . . . . . . . . . 01-02–8
MONITORING SYSTEM AND CONTROL Simulation Function Procedure . . . . . . 01-02–9
SYSTEM DEVICE RELATIONSHIP DIAGNOSTIC MONITORING TEST
CHART[L3 WITH TC] . . . . . . . . . . . . . . 01-02–5 RESULTS[L3 WITH TC] . . . . . . . . . . . . 01-02–9
FOREWORD[L3 WITH TC] . . . . . . . . . . . 01-02–6 AFTER REPAIR PROCEDURE
OBD-II PENDING TROUBLE CODE [L3 WITH TC]. . . . . . . . . . . . . . . . . . . . . 01-02–10
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-02–6 KOEO/KOER SELF TEST
OBD-II FREEZE FRAME DATA [L3 WITH TC]. . . . . . . . . . . . . . . . . . . . . 01-02–10
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-02–6 OBD-II DRIVE MODE
OBD-II ON-BOARD SYSTEM [L3 WITH TC]. . . . . . . . . . . . . . . . . . . . . 01-02–10
READINESS TEST[L3 WITH TC] . . . . . 01-02–6 EGR System Repair Verification
OBD-II READ/CLEAR DIAGNOSTIC TEST Drive Mode . . . . . . . . . . . . . . . . . . . . 01-02–11
RESULTS[L3 WITH TC] . . . . . . . . . . . . . 01-02–6 HO2S heater, HO2S, and TWC
OBD-II PARAMETER IDENTIFICATION Repair Verification Drive Mode. . . . . . 01-02–11
(PID) ACCESS[L3 WITH TC] . . . . . . . . 01-02–6 EVAP System Repair Verification
OBD-II DIAGNOSTIC MONITORING TEST Drive Mode . . . . . . . . . . . . . . . . . . . . 01-02–12
RESULTS[L3 WITH TC] . . . . . . . . . . . . . 01-02–7 PCM Adaptive Memory Production,
ON-BOARD DIAGNOSTIC TEST EGR, HO2S heater, HO2S, TWC,
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-02–7 and EVAP System Repair Verification
DTC Reading Procedure. . . . . . . . . . . . 01-02–7 Drive Mode . . . . . . . . . . . . . . . . . . . . 01-02–12
Pending Trouble Code DTC TABLE[L3 WITH TC]. . . . . . . . . . . . 01-02–13
Access Procedure . . . . . . . . . . . . . . . . 01-02–7 DTC B1342[L3 WITH TC] . . . . . . . . . . . . 01-02–21
Freeze Frame PID Data DTC P0011[L3 WITH TC] . . . . . . . . . . . . 01-02–22
Access Procedure . . . . . . . . . . . . . . . 01-02–7 DTC P0012[L3 WITH TC] . . . . . . . . . . . . 01-02–23
On-Board System Readiness Tests DTC P0016[L3 WITH TC] . . . . . . . . . . . . 01-02–25
Access Procedure . . . . . . . . . . . . . . . 01-02–8 DTC P0030[L3 WITH TC] . . . . . . . . . . . . 01-02–26
PID/DATA Monitor and DTC P0031[L3 WITH TC] . . . . . . . . . . . . 01-02–28
Record Procedure . . . . . . . . . . . . . . . . 01-02–8 DTC P0032[L3 WITH TC] . . . . . . . . . . . . 01-02–30
DTC P0037[L3 WITH TC] . . . . . . . . . . . . 01-02–32

01-02–1
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0038[L3 WITH TC]. . . . . . . . . . . . . 01-02–34 DTC P0481[L3 WITH TC] . . . . . . . . . . . . 01-02–154
DTC P0069[L3 WITH TC]. . . . . . . . . . . . . 01-02–36 DTC P050A[L3 WITH TC] . . . . . . . . . . . . 01-02–155
DTC P0089[L3 WITH TC]. . . . . . . . . . . . . 01-02–37 DTC P050B[L3 WITH TC] . . . . . . . . . . . . 01-02–157
DTC P0091[L3 WITH TC]. . . . . . . . . . . . . 01-02–38 DTC P0500[L3 WITH TC] . . . . . . . . . . . . 01-02–158
DTC P0092[L3 WITH TC]. . . . . . . . . . . . . 01-02–40 DTC P0505[L3 WITH TC] . . . . . . . . . . . . 01-02–159
DTC P0096[L3 WITH TC]. . . . . . . . . . . . . 01-02–42 DTC P0506[L3 WITH TC] . . . . . . . . . . . . 01-02–160
DTC P0097[L3 WITH TC]. . . . . . . . . . . . . 01-02–44 DTC P0507[L3 WITH TC] . . . . . . . . . . . . 01-02–162
DTC P0098[L3 WITH TC]. . . . . . . . . . . . . 01-02–46 DTC P0550[L3 WITH TC] . . . . . . . . . . . . 01-02–164
DTC P0101[L3 WITH TC]. . . . . . . . . . . . . 01-02–48 DTC P0564[L3 WITH TC] . . . . . . . . . . . . 01-02–166
DTC P0102[L3 WITH TC]. . . . . . . . . . . . . 01-02–50 DTC P0571[L3 WITH TC] . . . . . . . . . . . . 01-02–168
DTC P0103[L3 WITH TC]. . . . . . . . . . . . . 01-02–52 DTC P0601[L3 WITH TC] . . . . . . . . . . . . 01-02–170
DTC P0107[L3 WITH TC]. . . . . . . . . . . . . 01-02–54 DTC P0602[L3 WITH TC] . . . . . . . . . . . . 01-02–170
DTC P0108[L3 WITH TC]. . . . . . . . . . . . . 01-02–56 DTC P0604[L3 WITH TC] . . . . . . . . . . . . 01-02–171
DTC P0111[L3 WITH TC]. . . . . . . . . . . . . 01-02–58 DTC P0606[L3 WITH TC] . . . . . . . . . . . . 01-02–172
DTC P0112[L3 WITH TC]. . . . . . . . . . . . . 01-02–59 DTC P0607[L3 WITH TC] . . . . . . . . . . . . 01-02–172
DTC P0113[L3 WITH TC]. . . . . . . . . . . . . 01-02–61 DTC P0610[L3 WITH TC] . . . . . . . . . . . . 01-02–173
DTC P0116[L3 WITH TC]. . . . . . . . . . . . . 01-02–63 DTC P0638[L3 WITH TC] . . . . . . . . . . . . 01-02–174
DTC P0117[L3 WITH TC]. . . . . . . . . . . . . 01-02–64 DTC P0703[L3 WITH TC] . . . . . . . . . . . . 01-02–174
DTC P0118[L3 WITH TC]. . . . . . . . . . . . . 01-02–66 DTC P1260[L3 WITH TC] . . . . . . . . . . . . 01-02–177
DTC P0122[L3 WITH TC]. . . . . . . . . . . . . 01-02–68 DTC P2004[L3 WITH TC] . . . . . . . . . . . . 01-02–178
DTC P0123[L3 WITH TC]. . . . . . . . . . . . . 01-02–70 DTC P2006[L3 WITH TC] . . . . . . . . . . . . 01-02–181
DTC P0125[L3 WITH TC]. . . . . . . . . . . . . 01-02–72 DTC P2009[L3 WITH TC] . . . . . . . . . . . . 01-02–184
DTC P0126, P0128[L3 WITH TC] . . . . . . 01-02–74 DTC P2010[L3 WITH TC] . . . . . . . . . . . . 01-02–186
DTC P0131[L3 WITH TC]. . . . . . . . . . . . . 01-02–76 DTC P2088[L3 WITH TC] . . . . . . . . . . . . 01-02–188
DTC P0132[L3 WITH TC]. . . . . . . . . . . . . 01-02–79 DTC P2089[L3 WITH TC] . . . . . . . . . . . . 01-02–190
DTC P0133[L3 WITH TC]. . . . . . . . . . . . . 01-02–81 DTC P2096[L3 WITH TC] . . . . . . . . . . . . 01-02–191
DTC P0134[L3 WITH TC]. . . . . . . . . . . . . 01-02–83 DTC P2097[L3 WITH TC] . . . . . . . . . . . . 01-02–194
DTC P0137[L3 WITH TC]. . . . . . . . . . . . . 01-02–86 DTC P2100[L3 WITH TC] . . . . . . . . . . . . 01-02–197
DTC P0138[L3 WITH TC]. . . . . . . . . . . . . 01-02–88 DTC P2101[L3 WITH TC] . . . . . . . . . . . . 01-02–199
DTC P0139[L3 WITH TC]. . . . . . . . . . . . . 01-02–90 DTC P2102[L3 WITH TC] . . . . . . . . . . . . 01-02–202
DTC P0140[L3 WITH TC]. . . . . . . . . . . . . 01-02–92 DTC P2103[L3 WITH TC] . . . . . . . . . . . . 01-02–204
DTC P0192[L3 WITH TC]. . . . . . . . . . . . . 01-02–95 DTC P2107[L3 WITH TC] . . . . . . . . . . . . 01-02–205
DTC P0193[L3 WITH TC]. . . . . . . . . . . . . 01-02–96 DTC P2108[L3 WITH TC] . . . . . . . . . . . . 01-02–206
DTC P0201[L3 WITH TC]. . . . . . . . . . . . . 01-02–98 DTC P2119[L3 WITH TC] . . . . . . . . . . . . 01-02–207
DTC P0202[L3 WITH TC]. . . . . . . . . . . . . 01-02–101 DTC P2122[L3 WITH TC] . . . . . . . . . . . . 01-02–208
DTC P0203[L3 WITH TC]. . . . . . . . . . . . . 01-02–103 DTC P2123[L3 WITH TC] . . . . . . . . . . . . 01-02–210
DTC P0204[L3 WITH TC]. . . . . . . . . . . . . 01-02–105 DTC P2127[L3 WITH TC] . . . . . . . . . . . . 01-02–212
DTC P0222[L3 WITH TC]. . . . . . . . . . . . . 01-02–107 DTC P2128[L3 WITH TC] . . . . . . . . . . . . 01-02–214
DTC P0223[L3 WITH TC]. . . . . . . . . . . . . 01-02–109 DTC P2135[L3 WITH TC] . . . . . . . . . . . . 01-02–216
DTC P0234[L3 WITH TC]. . . . . . . . . . . . . 01-02–111 DTC P2138[L3 WITH TC] . . . . . . . . . . . . 01-02–217
DTC P0245[L3 WITH TC]. . . . . . . . . . . . . 01-02–112 DTC P2177[L3 WITH TC] . . . . . . . . . . . . 01-02–218
DTC P0246[L3 WITH TC]. . . . . . . . . . . . . 01-02–114 DTC P2178[L3 WITH TC] . . . . . . . . . . . . 01-02–220
DTC P0300[L3 WITH TC]. . . . . . . . . . . . . 01-02–115 DTC P2187[L3 WITH TC] . . . . . . . . . . . . 01-02–223
DTC P0301, P0302, P0303, P0304 DTC P2188[L3 WITH TC] . . . . . . . . . . . . 01-02–226
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-02–119 DTC P2195[L3 WITH TC] . . . . . . . . . . . . 01-02–229
DTC P0327[L3 WITH TC]. . . . . . . . . . . . . 01-02–122 DTC P2196[L3 WITH TC] . . . . . . . . . . . . 01-02–231
DTC P0328[L3 WITH TC]. . . . . . . . . . . . . 01-02–124 DTC P2228[L3 WITH TC] . . . . . . . . . . . . 01-02–233
DTC P0335[L3 WITH TC]. . . . . . . . . . . . . 01-02–126 DTC P2229[L3 WITH TC] . . . . . . . . . . . . 01-02–234
DTC P0340[L3 WITH TC]. . . . . . . . . . . . . 01-02–128 DTC P2237[L3 WITH TC] . . . . . . . . . . . . 01-02–235
DTC P0401[L3 WITH TC]. . . . . . . . . . . . . 01-02–131 DTC P2245[L3 WITH TC] . . . . . . . . . . . . 01-02–237
DTC P0403[L3 WITH TC]. . . . . . . . . . . . . 01-02–133 DTC P2246[L3 WITH TC] . . . . . . . . . . . . 01-02–239
DTC P0421[L3 WITH TC]. . . . . . . . . . . . . 01-02–135 DTC P2251[L3 WITH TC] . . . . . . . . . . . . 01-02–241
DTC P0441[L3 WITH TC]. . . . . . . . . . . . . 01-02–137 DTC P2401[L3 WITH TC] . . . . . . . . . . . . 01-02–243
DTC P0442[L3 WITH TC]. . . . . . . . . . . . . 01-02–139 DTC P2402[L3 WITH TC] . . . . . . . . . . . . 01-02–246
DTC P0443[L3 WITH TC]. . . . . . . . . . . . . 01-02–140 DTC P2404[L3 WITH TC] . . . . . . . . . . . . 01-02–248
DTC P0446[L3 WITH TC]. . . . . . . . . . . . . 01-02–142 DTC P2405[L3 WITH TC] . . . . . . . . . . . . 01-02–249
DTC P0455[L3 WITH TC]. . . . . . . . . . . . . 01-02–144 DTC P2407[L3 WITH TC] . . . . . . . . . . . . 01-02–250
DTC P0456[L3 WITH TC]. . . . . . . . . . . . . 01-02–147 DTC P2502[L3 WITH TC] . . . . . . . . . . . . 01-02–251
DTC P0461[L3 WITH TC]. . . . . . . . . . . . . 01-02–149 DTC P2503[L3 WITH TC] . . . . . . . . . . . . 01-02–252
DTC P0462[L3 WITH TC]. . . . . . . . . . . . . 01-02–150 DTC P2504[L3 WITH TC] . . . . . . . . . . . . 01-02–254
DTC P0463[L3 WITH TC]. . . . . . . . . . . . . 01-02–151 DTC P2507[L3 WITH TC] . . . . . . . . . . . . 01-02–256
DTC P0480[L3 WITH TC]. . . . . . . . . . . . . 01-02–152 DTC P2610[L3 WITH TC] . . . . . . . . . . . . 01-02–258

End of Toc
WM: ON-BOARD DIAGNOSTIC (ENGINE CONTROL SYSTEM)

01-02–2
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

ON-BOARD DIAGNOSTIC WIRING DIAGRAM[L3 WITH TC]
id010239800100

c 2BG
FUEL INJECTOR
1AY
2BB NO.1
b
a 1BE FUEL INJECTOR
NO.4
2AZ
1BA 01-02
2BH
FUEL INJECTOR
1AZ NO.3
2BD

FUEL INJECTOR
NO.2
2BC

1AR 2BF
IAT SENSOR FUEL INJECTOR RELAY
1M 2BE

MAF 1AK
1AW
SENSOR
1P
2C HO2S HEATER (FRONT)
1Q
HO2S HEATER (REAR)
1AV 2D

APP 1Y
SENSOR 1AE FAN CONTROL MODULE NO.1
1U

1AC
COOLING FAN
RELAY NO.1
1AJ

PCM
1AO b
2P
FUEL PRESSURE SENSOR
2R 1R FAN CONTROL MODULE NO.2

2I
COOLING FAN
2AY RELAY NO.2
ECT SENSOR 1K
2AH
A/C RELAY b

1I
2AV
FUEL PUMP SPEED CONTROL RELAY
MAP 1AA
2AG
SENSOR
2N
BOOST AIR TEMPERATURE
FUEL PUMP RESISTOR
SENSOR 2AU

1BC
HO2S (REAR)
2Q FUEL PUMP RELAY
1H

2M b
1AT

2AD
MAIN RELAY
HO2S
(FRONT) 2AC
STARTER RELAY c
2Z 1B
IGNITION
2Y
SWITCH

DRIVE-BY-WIRE-RELAY
2X
1BF
CKP SENSOR
2W 1AX
BATTERY
CMP SENSOR 2S
f a
d e
acxuuw00002269

01-02–3
1871-1U-06B(01-02).fm 4 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

d e f
EGR VALVE
2AQ

2AM
2V
KS
2U 2AR

2AN

2AK

2AP
EVAP SYSTEM LEAK
DETECTION PUMP
TP SENSOR
2AL 1V
b
2AO 1AS

PURGE SOLENOID VALVE

BRAKE SWITCH NO.1 2AB
1AB WASTEGATE CONTROL
SOLENOID VALVE
BRAKE SWITCH NO.2 2AA
1AF
VARIABLE SWIRL
SOLENOID VALVE
2AS
VARIABLE SWIRL SHUTTER VALVE SWITCH OCV
2AE 2AF

2E
REFRIGERANT PRESSURE SWITCH (HIGH, LOW)
1AU 2B
THROTTLE
REFRIGERANT PRESSURE SWITCH (MIDDLE) 2A
ACTUATOR
1J

2F
PSP SWITCH SPILL VALVE CONTROL
2T
2G
SOLENOID VALVE

2H

1BB

CRUISE CONTROL SWITCH 1BG

1AQ
1BD

1BH

2BA IGNITION COIL NO.1

GENERATOR 2AJ
2AW IGNITION COIL NO.2

2AX IGNITION COIL NO.3

1AM
CAN
1AI
2AT IGNITION COIL NO.4

2AI GENERATOR

acxuuw00002270

End Of Sie

01-02–4
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

MONITORING SYSTEM AND CONTROL SYSTEM DEVICE RELATIONSHIP CHART[L3 WITH TC]
id010239800200

×: Applicable

Oxygen sensor heater monitor

Evaporative system monitor

Oxygen sensor monitor
01-02

Engine cooling system

EGR system monitor
Fuel system monitor
Component

Catalyst monitor

Misfire monitor
Input
Battery x x x
Ignition switch x x x
A/C switch, refrigerant pressure switch (high, low pressure) x x
TP sensor x x x x x x
ECT sensor x x x x x x x x
IAT sensor x x x x x x
MAF sensor x x x x x x x
HO2S (front) x x x x
HO2S (rear) x x x x
Fuel gauge sender unit x
BARO sensor x x
MAP sensor x
CMP sensor x
CKP sensor x x x x x x x x
VSS x x x x
Output
Fuel injector x
HO2S heater (front) x
HO2S heater (rear) x
EGR valve x
Purge solenoid valve x x x x
EVAP system leak detection pump x
MIL x x x x x x x x
DLC-2 x x x x x x x x

End Of Sie

01-02–5
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

FOREWORD[L3 WITH TC]
id010239800300
• When the customer reports a vehicle malfunction, check the malfunction indicator lamp (MIL) indication and
diagnostic trouble code (DTC), then diagnose the malfunction according to the following flowchart.
— If a DTC exists, diagnose the applicable DTC inspection. (See 01-02-13 DTC TABLE[L3 WITH TC].)
— If a DTC does not exist and the MIL does not illuminate or flash, diagnose the applicable symptom
troubleshooting. (See 01-03-8 QUICK DIAGNOSTIC CHART[L3 WITH TC].)

CUSTOMER ARRIVES

WARNING LIGHT* NO WARNING LIGHT*

ON/FLASHING WITH SYMPTOM

CHECK FOR •CHECK DTC

PRIORITIZED DTC •IGNITION ON TEST, IDLING TEST
DTC
WITHOUT DTC

DIAGNOSE BY DTC DIAGNOSE BY SYMPTOM

(ON-BOARD DIAGNOSTIC) (SYMPTOM TROUBLESHOOTING)
•DTC TABLE 1. DIAGNOSTIC INDEX
•DTC 2. QUICK DIAGNOSIS CHART
TROUBLESHOOTING 3. SYMPTOM TROUBLESHOOTING
FLOW

acxuuw00002404

*: Malfunction Indicator Lamp (MIL), Generator Warning Light, Security Light

End Of Sie
OBD-II PENDING TROUBLE CODE[L3 WITH TC]
id010239800400
• These appear when a problem is detected in a monitored system. The code for a failed system is stored in the
PCM memory in the first drive cycle. This code is called the pending code. If the PCM determines that the
system has returned to normal or the problem was mistakenly detected, it deletes the pending code. If the
problem is found in the second drive cycle, too the PCM determines that the system is malfunctioning, and the
DTC is stored.
End Of Sie
OBD-II FREEZE FRAME DATA[L3 WITH TC]
id010239800500
• This is technical data which indicates the engine condition at the time of the first malfunction. This data will
remain in the memory even if another emission-related DTC is stored, with the exception of the Misfire or Fuel
System DTCs. Once freeze frame data for the Misfire or Fuel System DTC is stored, it will overwrite any
previous data and the freeze frame will not be overwritten again.
End Of Sie
OBD-II ON-BOARD SYSTEM READINESS TEST[L3 WITH TC]
id010239800600
• This shows the OBD-II systems operating status. If any monitor function is incomplete, the M-MDS will identify
which monitor function has not been completed. Misfires, Fuel System and Comprehensive Components
(CCM) are continuous monitoring-type functions. The catalyst, EGR system, evaporation system and oxygen
sensor will be monitored under drive cycles. The OBD-II diagnostic system is initialized by performing the DTC
cancellation procedure or disconnecting the negative battery cable.
End Of Sie
OBD-II READ/CLEAR DIAGNOSTIC TEST RESULTS[L3 WITH TC]
id010239800800
• This retrieves all stored DTCs in the PCM and clears the DTC, Freeze Frame Data, On-Board Readiness Test
Results, Diagnostic Monitoring Test Results and Pending Trouble Codes.
End Of Sie
OBD-II PARAMETER IDENTIFICATION (PID) ACCESS[L3 WITH TC]
id010239800900
• The PID mode allows access to certain data values, analog and digital inputs and outputs, calculated values
and system status information. Since PID values for output devices are PCM internal data values, inspect each
device to identify which output devices are malfunctioning.
End Of Sie

01-02–6
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

OBD-II DIAGNOSTIC MONITORING TEST RESULTS[L3 WITH TC]
id010239800700
• These result from the intermittent monitor system technical data, which are used to determine whether the
system is normal or not. They also display the system’s thresholds and diagnostic results. The intermittent
monitor system monitors the oxygen sensor, EVAP purge system, catalyst and the EGR system.
End Of Sie
ON-BOARD DIAGNOSTIC TEST[L3 WITH TC]
id010239801000
DTC Reading Procedure 01-02
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following
items from the initial screen of the M-MDS.
• When using the IDS (notebook PC)
1. Select the “Toolbox” tab.
2. Select “Self Test”.
3. Select “Module”. DLC-2
4. Select “PCM”.
• When using the PDS (pocket PC)
1. Select “Module Tests”.
2. Select “PCM”.
3. Select “Self Test”.
acxuuw00001891
3. Then, select the “Retrieve CMDTCs” and perform
procedures according to directions on the M-MDS
screen.
4. Verify the DTC according to the directions on the M-MDS screen.
• If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.
5. After completion of repairs, clear all DTCs stored in the PCM, while referring to “AFTER REPAIR
PROCEDURE“.

Pending Trouble Code Access Procedure

1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following
items from the initial screen of the M-MDS.
• When using the IDS (notebook PC)
1. Select the “Toolbox” tab.
2. Select “Self Test”.
3. Select “Module”. DLC-2
4. Select “PCM”.
• When using the PDS (pocket PC)
1. Select “Module Tests”.
2. Select “PCM”.
3. Select “Self Test”.
acxuuw00001891
3. Then, select the “Retrieve CMDTCs” and perform
procedures according to directions on the M-MDS
screen.
4. Retrieve the pending trouble codes according to the directions on the M-MDS screen.

Freeze Frame PID Data Access Procedure

1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following
items from the initial screen of the M-MDS.
• When using the IDS (notebook PC)
1. Select the “Toolbox” tab.
2. Select “Self Test”.
3. Select “Module”. DLC-2
4. Select “PCM”.
• When using the PDS (pocket PC)
1. Select “Module Tests”.
2. Select “PCM”.
3. Select “Self Test”.
acxuuw00001891
3. Then, select the “Retrieve CMDTCs” and perform
procedures according to directions on the M-MDS
screen.
4. Retrieve the freeze frame PID data according to the directions on the M-MDS screen.

01-02–7
1871-1U-06B(01-02).fm 8 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

On-Board System Readiness Tests Access Procedure
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following
items from the initial screen of the M-MDS.
• When using the IDS (notebook PC)
1. Select the “Toolbox” tab.
2. Select “Powertrain”.
3. Select “OBD Test Modes”. DLC-2
4. Select “Mode 1 Powertrain Data”.
• When using the PDS (pocket PC)
1. Select “OBD II Modes”.
2. Select “Mode 1 Powertrain Data”.
3. Then, select the “***SUP” and “***EVAL” PIDs in
acxuuw00001891
the PID selection screen.
4. Monitor those PIDs and check it system monitor is
completed.

PID/DATA Monitor and Record Procedure

Note
• The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM.
Therefore, an output device malfunction is not directly indicated as a malfunction of the monitored value
for the output device. If a monitored value of an output device is out of specification, inspect the monitored
value of the input device related to the output control.

1. Connect the M-MDS to the DLC-2.

2. After the vehicle is identified, select the following
items from the initial screen of the M-MDS.
• When using the IDS (notebook PC)
1. Select the “Toolbox” tab.
2. Select “DataLogger”.
3. Select “Module”. DLC-2
4. Select “PCM”.
• When using the PDS (pocket PC)
1. Select “Module Tests”.
2. Select “PCM”.
3. Select “DataLogger”.
acxuuw00001891
3. Select the PID from the PID table.
4. Verify the PID data according to the directions on
the screen.

Diagnostic Monitoring Test Results Access Procedure

1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following
items from the initial screen of the M-MDS.
• When using the IDS (notebook PC)
1. Select the “Toolbox” tab.
2. Select “Powertrain”.
3. Select “OBD Test Modes”. DLC-2
4. Select “Mode 6 On-Board Test Results”.
• When using the PDS (pocket PC)
1. Select “OBD II Modes”.
2. Select “Mode 6 On-Board Test Results”.
3. Verify the diagnostic monitoring test result
acxuuw00001891
according to the directions on the screen.

01-02–8
1871-1U-06B(01-02).fm 9 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Simulation Function Procedure
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following
items from the initial screen of the M-MDS.
• When using the IDS (notebook PC)
1. Select the “Toolbox” tab.
2. Select “DataLogger”.
3. Select “Module”. DLC-2 01-02
4. Select “PCM”.
• When using the PDS (pocket PC)
1. Select “Module Tests”.
2. Select “PCM”.
3. Select “DataLogger”.
acxuuw00001891
3. Select the simulation items from the PID table.
4. Perform the simulation function, inspect the
operations for each parts.
• If there is no operation sound from the relay, motor, and solenoid after the simulation function inspection is
performed, it is possible that there is an open or short circuit in the wiring harness, relay, motor or solenoid,
or sticking and operation malfunction.
End Of Sie
DIAGNOSTIC MONITORING TEST RESULTS[L3 WITH TC]
id010239801400
• The purpose of this test mode is to confirm the result of the OBD-II monitor diagnostic test results. The result
values stored when a particular monitor is completed are displayed. If the monitor is not completed, the initial
value is displayed.
TEST ID Description Related system
10: 01: 80 HO2S (Front) lean-to-rich response time (calculated)
10: 02: 03 Low HO2S (Rear) voltage for switch time calculation (constant)
HO2S
10: 02: 04 High HO2S (Rear) voltage for switch time calculation (constant)
10: 02: 05 HO2S (Rear) rich-to-lean response time (calculated)
10: 21: 80 Front and HO2S (Rear) switching time ratio Catalyst
10: 31: 83 EGR pressure variation EGR
10: 3A: 80 EVAP system leak detection pump gross leak check
10: 3B: 80 EVAP system leak detection pump small leak check
EVAP
10: 3C: 80*1 EVAP system leak detection pump very small leak check
10: 3D: 80 Purge flow monitor
10: A2: 0B EWMA misfire counts for last 10 driving cycles
10: A2: 0C Misfire counts for last/current driving cycles
10: A3: 0B EWMA misfire counts for last 10 driving cycles
10: A3: 0C Misfire counts for last/current driving cycles
Misfire
10: A4: 0B EWMA misfire counts for last 10 driving cycles
10: A4: 0C Misfire counts for last/current driving cycles
10: A5: 0B EWMA misfire counts for last 10 driving cycles
10: A5: 0C Misfire counts for last/current driving cycles
10: E1: 80 Heat radiation ratio Engine cooling
10: E1: 81 Misfire counts for last/current driving cycles system

*1 : California emission regulation applicable model

End Of Sie

01-02–9
1871-1U-06B(01-02).fm 10 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

AFTER REPAIR PROCEDURE[L3 WITH TC]
id010239801100
1. Connect the M-MDS to the DLC-2.
2. Cycle the ignition switch from the off to the ON
position.
3. Any retrieved DTCs.
4. Clear all diagnostic data using the M-MDS.
End Of Sie
DLC-2

acxuuw00001892

KOEO/KOER SELF TEST[L3 WITH TC]

id010239801200
1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the M-MDS to the vehicle DLC-2 16-pin connector located in the driver compartment.
3. Retrieve the KOEO/KOER DTCs using the M-MDS.
End Of Sie
OBD-II DRIVE MODE[L3 WITH TC]
id010239801300
• Using the OBD-II drive mode, the monitoring item requested by OBD-II regulations can be easily diagnosed.
• Performing the Drive Mode inspects the OBD-II system for proper operation and must be performed to ensure
that no additional DTCs are present.
• The OBD-II drive mode is divided into the specific drive mode and single drive mode.
• For the specific drive mode, specified drive modes have been set for each individual monitoring item requested
by OBD-II regulations, and they can be diagnosed individually. For the single drive mode, the entire monitoring
item requested by OBD-II regulations can be diagnosed.
• The following modes are in the specific drive mode. The applicable system is diagnosed by driving in the
following drive modes.
— PCM Adaptive Memory Produce Drive Mode
— EGR System Repair Verification Drive Mode
— HO2S heater, HO2S, and TWC Repair Verification Drive Mode
— EVAP System Repair Verification Drive Mode
• The following systems are diagnosed with the single drive mode.
— EGR system
— Oxygen sensor (HO2S)
— Oxygen sensor heater
— Catalytic converter (TWC)
— Fuel, misfire and evaporative (EVAP) system

Caution
• While performing the Drive Mode, always operate the vehicle in a safe and lawful manner.
• When the M-MDS is used to observe monitor system status while driving, be sure to have another
technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD
function and inspect later.

Note
• Vehicle speed and engine speed detected by the PCM may differ from that indicated by the speedometer
and tachometer. Use the M-MDS to monitor vehicle speed.
• If the OBD-II system inspection is not completed during the Drive Mode, the following causes are
considered:
— The OBD-II system detects the malfunction.
— The Drive Mode procedure is not completed correctly.
• Disconnecting the battery will reset the memory. Do not disconnect the battery during and after Drive
Mode.
• The M-MDS can be used at anytime through the course of the Drive Mode to monitor the completion
status. Monitoring can be done by viewing the ON BOARD SYSTEM READINESS menu.
• The OBD monitoring status can be confirmed with the ignition switch operation. During KOEO, the MIL
illuminates for a fail-light inspection for approx. 17 s. The OBD monitoring status is confirmed after the
fail-light inspection.
— If all of the diagnosis is completed even one time, the MIL will continue to illuminate.
— If all of the diagnosis is not completed, the MIL flashes for approx. 7 s, and then it illuminates until the
engine is started.
01-02–10
1871-1U-06B(01-02).fm 11 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

EGR System Repair Verification Drive Mode
1. Perform “PCM Adaptive Memory Production Drive Mode” first.
2. Verify all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
3. Drive the vehicle as shown in the graph.
4. Stop the vehicle and access ON BOARD
SYSTEM READINESS menu of GENERIC OBD- 68—80 km/h {42—50 mph}
II FUNCTION to verify the OBD monitoring status. WITH D RANGE
• If completed, the OBD monitoring status 01-02

VEHICLE SPEED
items change from non-completed to MORE
completed. THAN 60 s
• If not completed, turn the ignition switch off
then repeat from Step 3.
5. Access DIAGNOSTIC MONITORING TEST
RESULTS menu of GENERIC OBD-II
FUNCTIONS to verify the monitor results.
• If detected values are not within specification,
repair has not been completed. IDLE
6. Verify no DTCs are available.
START TIME
ENGINE
acxuuw00001894

HO2S heater, HO2S, and TWC Repair Verification Drive Mode

1. Perform “PCM Adaptive Memory Production Drive Mode” first.
2. Verify all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
3. Drive the vehicle as shown in the graph. The driving conditions before driving at constant speed are not
specified.

65—80 km/h APPROX. 10 s

{40—50 mph}
ABOVE 89 km/h
WITH D RANGE
{55 mph}
WITH D RANGE
VEHICLE SPEED

APPROX. 10 s
*:10 TIMES

0
1 min 3 min TIME
ABOVE 5 min
START ENGINE *: Decelerate for approx. 10 s by engine braking only while driving with an
vehicle speed of around 80 km/h (50 mph) for approx. 10 s
acxuuw00001895

4. Stop the vehicle and access ON BOARD SYSTEM READINESS menu of GENERIC OBD-II FUNCTION to
verify the OBD monitoring status.
• If completed, the OBD monitoring status items change from non-completed to completed.
• If not completed, turn the ignition switch off then repeat from Step 3.
5. Access DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD-II FUNCTIONS to verify the
monitor results.
• If detected values are not within the specification, repair has not been completed.
6. Verify no DTCs are available.

01-02–11
1871-1U-06B(01-02).fm 12 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

EVAP System Repair Verification Drive Mode

Note
• If “EVAP System Repair Verification Drive Mode” cannot be performed (it is impossible to drive the vehicle
under this drive mode condition), perform the EVAP system test procedure as an alternative.

1. Verify that all of the following PIDs are within the following specifications. All PIDs must be within specifications
before the engine is started to initiate the EVAP system test.
• BARO: above 72.2 kPa {542 mmHg, 21.3 inHg}
• IAT: 5— 35 °C {41— 95 °F}
• FTL: 15— 85%
• B+: above 10.9 V
2. Clear the DTC from the PCM memory using the M-MDS.
3. Turn the ignition switch off.
4. Leave the vehicle for 5 hours or more.
5. Start the engine and idle it for more than 5 min.
6. Drive the vehicle at an engine speed of 65— 80 km/h {40— 50 mph} for more than 5 min.
7. Stop the vehicle and the turn ignition switch off.
8. Leave vehicle as it is for 5.5 hours or more.
9. Start the engine.
10. Access the ON BOARD SYSTEM READINESS to verify the OBD monitoring status.
• If completed, the OBD monitoring status items change from non-completed to completed.
• If not completed, turn the ignition switch off then go back to Step 1.
11. Access the DIAGNOSTIC MONITORING TEST RESULTS to verify the monitor results.
• If detected values are not within specification, the repair has not been completed.
12. Verify that no DTCs are present.

PCM Adaptive Memory Production, EGR, HO2S heater, HO2S, TWC, and EVAP System Repair Verification
Drive Mode
1. Start the engine and warm it up completely.
2. Clear the DTC from the PCM memory using the M-MDS.
3. Verify the following conditions and correct if necessary:
• All accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
4. Verify that all of the following PIDs are within the following specifications. All PIDs must be within specifications
from Step 5 to 6.
• BARO: above 72.2 kPa {542 mmHg, 21.3 inHg}
• IAT: 5— 35 °C {41— 95 °F}
• FTL: 15— 85%
• B+: above 10.9 V
5. With the vehicle stopped, race the engine at the engine speed indicated, and then drive the vehicle as shown in
the graph. The driving conditions before driving at constant speed are not specified. If possible, monitor RPM
PID for engine speed during this procedure.
T8
V3
V2
VEHICLE SPEED

V1
V4
T9

T3
T2 T10
T1
IDLE

TIME
T4 T5 T6 T7
START START START
ENGINE ENGINE ENGINE
STOP STOP
ENGINE ENGINE
acxuuw00002357

01-02–12
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
Engine speed Vehicle speed
Step Time Vehicle condition
(rpm) (km/h {mph})
1 Idle the engine after the cooling fan
T1: More than 10 s N3: Idle 0 {0}
has stopped
2 T2: More than 5 h 0 0 {0} Keep the ignition switch off
3 T3: More than 5 min Idle V1: 0 {0} —
4 T4: 5 min — V2: 65— 80 {40— 50} D RANGE
01-02
5 T5: 1 min — V3: 70— 78 {43— 49} D RANGE
6 T6: 1 min — V4: Above 89 {55} D RANGE
7 T7: 3 min — V5: 65— 80 {40— 50} D RANGE
8 Approx. 80 km/h
T8: Approx. 10 s — —
(50mph)
9 Decelerate by engine braking only
T9: Approx. 10 s — —
(10 times)
10 T10: More than 5.5 h 0 0 {0} Keep the ignition switch off

6. Turn the ignition switch off.

7. Access the ON BOARD SYSTEM READINESS to verify the OBD monitoring status.
• If completed, all of the OBD monitoring status items change from non-completed to completed.
• If not completed, turn the ignition switch off, then perform the applicable specific drive mode for any
monitoring item that was not in the detection condition.
8. Access the DIAGNOSTIC MONITORING TEST RESULTS to verify the monitor results.
• If detected values are not within specification, the repair has not been completed.
End Of Sie
DTC TABLE[L3 WITH TC]
id010239801500

×: Applicable
— : Not applicable
Self-test Memory
DTC No. Condition MIL DC Monitor item Page
type*2 function
(See01-02-21
B1342 PCM malfunction OFF 1 CCM C, O × DTC B1342[L3
WITH TC].)
(See01-02-22
P0011 CMP Timing over-advanced ON 2 CCM C, R × DTC P0011[L3
WITH TC].)
(See01-02-23
P0012 CMP Timing over-retarded ON 2 CCM C, R × DTC P0012[L3
WITH TC].)
(See01-02-25
P0016 CKP-CMP correlation ON 2 CCM C × DTC P0016[L3
WITH TC].)
(See01-02-26
Front HO2S heater control circuit
P0030 ON 2 HO2S heater C, O, R × DTC P0030[L3
problem
WITH TC].)
(See01-02-28
P0031 Front HO2S heater circuit low input ON 2 HO2S heater C, O, R × DTC P0031[L3
WITH TC])
(See01-02-30
P0032 Front HO2S heater circuit high input ON 2 HO2S heater C, O, R × DTC P0032[L3
WITH TC].)
(See01-02-32
P0037 Rear HO2S heater circuit low input ON 2 HO2S heater C, O, R × DTC P0037[L3
WITH TC].)
(Se01-02-34
P0038 Rear HO2S heater circuit high input ON 2 HO2S heater C, O, R × DTC P0038[L3
WITH TC].)
(See01-02-36
Manifold absolute pressure/
P0069 ON 2 CCM C × DTC P0069[L3
atmospheric pressure correlation
WITH TC].)

Revised 8/2006 (Ref. No. R087/06) 01-02–13

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
Self-test Memory
DTC No. Condition MIL DC Monitor item Page
type*2 function
(See01-02-37
P0089 Fuel pressure regulator performance OFF 1 Other C, O, R × DTC P0089[L3
WITH TC].)
(See01-02-38
Fuel pressure regulator control circuit
P0091 ON 1 CCM C, O, R × DTC P0091[L3
low
WITH TC])
(See01-02-40
Fuel pressure regulator control circuit
P0092 ON 1 CCM C, O, R × DTC P0092[L3
high
WITH TC].)
(See01-02-42
IAT sensor 2 circuit range/
P0096 ON 2 CCM C × DTC P0096[L3
performance problem
WITH TC].)
(See01-02-44
P0097 IAT sensor 2 circuit low ON 1 CCM C, O, R × DTC P0097[L3
WITH TC].)
(See01-02-46
P0098 IAT sensor 2 circuit high ON 1 CCM C, O, R × DTC P0098[L3
WITH TC].)
(See01-02-48
MAF circuit range/performance
P0101 ON 2 CCM C × DTC P0101[L3
problem
WITH TC].)
(See01-02-50
P0102 MAF circuit low input ON 1 CCM C, O, R × DTC P0102[L3
WITH TC].)
(See01-02-52
P0103 MAF circuit high input ON 1 CCM C, O, R × DTC P0103[L3
WITH TC].)
(See01-02-54
P0107 MAP sensor circuit low input ON 1 CCM C, O, R × DTC P0107[L3
WITH TC].)
(See01-02-56
P0108 MAP sensor circuit high input ON 1 CCM C, O, R × DTC P0108[L3
WITH TC].)
(See01-02-58
P0111 IAT circuit performance problem ON 2 CCM C × DTC P0111[L3
WITH TC].)
(See01-02-59
P0112 IAT circuit low input ON 1 CCM C, O, R × DTC P0112[L3
WITH TC].)
(See01-02-61
P0113 IAT circuit high input ON 1 CCM C, O, R × DTC P0113[L3
WITH TC].)
(See01-02-63
ECT circuit range/performance Engine cooling
P0116 ON 1 C × DTC P0116[L3
problem system
WITH TC].)
(See01-02-64
Engine cooling
P0117 ECT circuit low input ON 1 C, O, R × DTC P0117[L3
system
WITH TC].)
(See01-02-66
Engine cooling
P0118 ECT circuit high input ON 1 C, O, R × DTC P0118[L3
system
WITH TC].)
(See01-02-68
P0122 TP sensor No.1 circuit low input ON 1 CCM C, O, R × DTC P0122[L3
WITH TC].)
(See01-02-70
P0123 TP sensor No.1 circuit high input ON 1 CCM C, O, R × DTC P0123[L3
WITH TC].)
(See01-02-72
Excessive time to enter closed loop Engine cooling
P0125 ON 2 C × DTC P0125[L3
fuel control system
WITH TC].)

01-02–14
1871-1U-06B(01-02).fm 15 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Self-test Memory
DTC No. Condition MIL DC Monitor item Page
type*2 function
Engine cooling (See01-02-74
P0126 Coolant thermostat stuck open ON 2 C ×
system DTC P0126,
Engine cooling P0128[L3
P0128 Coolant thermostat stuck open ON 2 C × WITH TC].)
system
(See01-02-76
P0131 Front HO2S circuit low input ON 2 HO2S C, O, R × DTC P0131[L3 01-02
WITH TC].)
(See01-02-79
P0132 Front HO2S circuit high input ON 2 HO2S C, O, R × DTC P0132[L3
WITH TC].)
(See01-02-81
P0133 Front HO2S circuit problem ON 2 HO2S C × DTC P0133[L3
WITH TC].)
(See01-02-83
Front HO2S circuit no activity
P0134 ON 2 HO2S C, R × DTC P0134[L3
detected
WITH TC].)
(See01-02-86
P0137 Rear HO2S circuit low input ON 2 HO2S C, O, R × DTC P0137[L3
WITH TC].)
(See01-02-88
P0138 Rear HO2S circuit high input ON 2 HO2S C, O, R × DTC P0138[L3
WITH TC].)
(See01-02-90
P0139 Rear HO2S circuit malfunction ON 2 HO2S C × DTC P0139[L3
WITH TC].)
(See01-02-92
P0140 Rear HO2S circuit no activity detected ON 2 HO2S C, R × DTC P0140[L3
WITH TC].)
(See01-02-95
Fuel rail pressure sensor circuit low
P0192 ON 1 CCM C, O, R × DTC P0192[L3
input
WITH TC].)
(See01-02-96
Fuel rail pressure sensor circuit high
P0193 ON 1 CCM C, O, R × DTC P0193[L3
input
WITH TC].)
(See01-02-98
P0201 Injector circuit/open cylinder No.1 ON 1 CCM C, R × DTC P0201[L3
WITH TC].)
(See01-02-
101 DTC
P0202 Injector circuit/open cylinder No.2 ON 1 CCM C, R ×
P0202[L3
WITH TC].)
(See01-02-
103 DTC
P0203 Injector circuit/open cylinder No.3 ON 1 CCM C, R ×
P0203[L3
WITH TC].)
(See01-02-
105 DTC
P0204 Injector circuit/open cylinder No.4 ON 1 CCM C, R ×
P0204[L3
WITH TC].)
(See01-02-
107 DTC
P0222 TP sensor No.2 circuit low input ON 1 CCM C, O, R ×
P0222[L3
WITH TC].)
(See01-02-
109 DTC
P0223 TP sensor No.2 circuit high input ON 1 CCM C, O, R ×
P0223[L3
WITH TC].)
(See01-02-
Turbo/supercharger overboost 111 DTC
P0234 OFF 1 Other C, R ×
condition P0234[L3
WITH TC].)

01-02–15
1871-1U-06B(01-02).fm 16 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Self-test Memory
DTC No. Condition MIL DC Monitor item Page
type*2 function
(See01-02-
112 DTC
P0245 Turbocharger wastegate solenoid low OFF 2 Other C, O, R ×
P0245[L3
WITH TC].)
(See01-02-
114 DTC
P0246 Turbocharger wastegate solenoid high OFF 2 Other C, O, R ×
P0246[L3
WITH TC].)
(See01-02-
Flash 115 DTC
P0300 Random misfire detected 1 or 2 Misfire C, R ×
/ ON P0300[L3
WITH TC].)
Flash
P0301 Cylinder No.1 misfire detected 1 or 2 Misfire C, R ×
/ ON (See01-02-
Flash 119 DTC
P0302 Cylinder No.2 misfire detected 1 or 2 Misfire C, R ×
/ ON P0301, P0302,
Flash P0303,
P0303 Cylinder No.3 misfire detected 1 or 2 Misfire C, R × P0304[L3
/ ON
Flash WITH TC].)
P0304 Cylinder No.4 misfire detected 1 or 2 Misfire C, R ×
/ ON
(See01-02-
122 DTC
P0327 Knock sensor circuit low input ON 1 CCM C, O, R ×
P0327[L3
WITH TC].)
(See01-02-
124 DTC
P0328 Knock sensor circuit high input ON 1 CCM C, O, R ×
P0328[L3
WITH TC].)
(See01-02-
126 DTC
P0335 CKP sensor circuit malfunction ON 1 CCM C ×
P0335[L3
WITH TC].)
(See01-02-
128 DTC
P0340 CMP sensor circuit malfunction ON 1 CCM C ×
P0340[L3
WITH TC].)
(See01-02-
131 DTC
P0401 EGR flow insufficient detected ON 2 EGR C, R ×
P0401[L3
WITH TC].)
(See01-02-
EGR valve (stepper motor) circuit 133 DTC
P0403 ON 2 CCM C, O, R ×
malfunction P0403[L3
WITH TC].)
(See01-02-
Catalyst system efficiency below 135 DTC
P0421 ON 2 Catalyst C ×
threshold P0421[L3
WITH TC].)
(See01-02-
EVAP control system incorrect purge EVAP system 137 DTC
P0441 ON 2 C, R ×
flow monitor P0441[L3
WITH TC].)
(See01-02-
EVAP control system leak detected EVAP system 139 DTC
P0442 ON 2 C, R ×
(small leak) monitor P0442[L3
WITH TC].)
(See01-02-
EVAP control system purge control 140 DTC
P0443 ON 2 CCM C, O, R ×
valve circuit malfunction P0443[L3
WITH TC].)

01-02–16
1871-1U-06B(01-02).fm 17 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Self-test Memory
DTC No. Condition MIL DC Monitor item Page
type*2 function
(See01-02-
Change over valve (COV) (EVAP
142 DTC
P0446 system leak detection pump) stuck ON 2 CCM C, R ×
P0446[L3
close
WITH TC].)
(See01-02-
P0455
EVAP control system leak detected
ON 2
EVAP system
C, R ×
144 DTC 01-02
(gross leak) monitor P0455[L3
WITH TC].)
(See01-02-
EVAP control system leak detected EVAP system 147 DTC
P0456*1 ON 2 C, R ×
(very small leak) monitor P0456[L3
WITH TC].)
(See01-02-
Fuel gauge sender unit circuit range/ 149 DTC
P0461 ON 2 CCM C ×
performance P0461[L3
WITH TC].)
(See01-02-
Fuel gauge sender unit circuit low 150 DTC
P0462 ON 2 CCM C, O, R ×
input P0462[L3
WITH TC].)
(See01-02-
Fuel gauge sender unit circuit high 151 DTC
P0463 ON 2 CCM C, O, R ×
input P0463[L3
WITH TC].)
(See01-02-
Fan relay No.1 control circuit 152 DTC
P0480 OFF 1 Other C, O, R ×
malfunction P0480[L3
WITH TC].)
(See01-02-
Fan relay No.2 control circuit 152 DTC
P0481 OFF 1 Other C, O, R ×
malfunction P0480[L3
WITH TC].)
(See01-02-
Vehicle speed sensor (VSS) circuit 158 DTC
P0500 ON 2 CCM C ×
malfunction P0500[L3
WITH TC].)
(See01-02-
159 DTC
P0505 Idle control system malfunction OFF – – R –
P0505[L3
WITH TC].)
(See01-02-
Idle control system RPM lower than 160 DTC
P0506 ON 2 CCM C ×
expected P0506[L3
WITH TC].)
(See01-02-
Idle control system RPM higher than 162 DTC
P0507 ON 2 CCM C ×
expected P0507[L3
WITH TC].)
(See01-02-
Cold start idle air control system 155 DTC
P050A ON 2 CCM C, R ×
performance P050A[L3
WITH TC].)
(See01-02-
157 DTC
P050B Cold start ignition timing performance ON 2 CCM C, R ×
P050B[L3
WITH TC].)
(See01-02-
164 DTC
P0550 PSP switch circuit malfunction ON 2 CCM C ×
P0550[L3
WITH TC].)
(See01-02-
Cruise control switch circuit 166 DTC
P0564 OFF 1 Other C ×
malfunction P0564[L3
WITH TC].)

01-02–17
1871-1U-06B(01-02).fm 18 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Self-test Memory
DTC No. Condition MIL DC Monitor item Page
type*2 function
(See01-02-
168 DTC
P0571 Brake switch circuit malfunction OFF 1 Other C ×
P0571[L3
WITH TC].)
(See01-02-
Internal control module memory 170 DTC
P0601 ON 1 CCM C, O, R ×
check sum error P0601[L3
WITH TC].)
(See01-02-
170 DTC
P0602 PCM programming error ON 1 CCM C, O, R ×
P0602[L3
WITH TC].)
(See01-02-
171 DTC
P0604 PCM RAM error ON 1 CCM C, O, R ×
P0604[L3
WITH TC].)
(See01-02-
172 DTC
P0606 PCM processor ON 1 CCM C, O, R ×
P0606[L3
WITH TC].)
(See01-02-
172 DTC
P0607 Control module performance OFF 1 Other C, O, R ×
P0607[L3
WITH TC].)
(See01-02-
173 DTC
P0610 Control module vehicle options error ON 1 CCM C, O, R ×
P0610[L3
WITH TC].)
(See01-02-
Throttle actuator control range/ 174 DTC
P0638 ON 1 CCM C ×
performance P0638[L3
WITH TC].)
(See01-02-
174 DTC
P0703 Brake switch No.1 circuit malfunction ON 2 CCM C ×
P0703[L3
WITH TC].)
(See01-02-
177 DTC
P1260 Immobilizer system problem OFF – CCM C, O ×
P1260[L3
WITH TC].)
(See01-02-
Variable swirl control system shutter 178 DTC
P2004 ON 2 CCM C, R ×
valve stuck open P2004[L3
WITH TC].)
(See01-02-
Variable swirl control system shutter 181 DTC
P2006 ON 2 CCM C, R ×
valve stuck closed P2006[L3
WITH TC].)
(See01-02-
Variable swirl solenoid valve control 184 DTC
P2009 ON 2 CCM C, O, R ×
circuit low P2009[L3
WITH TC].)
(See01-02-
Variable swirl solenoid valve control 186 DTC
P2010 ON 2 CCM C, O, R ×
circuit high P2010[L3
WITH TC].)
(See01-02-
188 DTC
P2088 OCV actuator circuit low ON 1 CCM C, O, R ×
P2088[L3
WITH TC].)
(See01-02-
190 DTC
P2089 OCV actuator circuit high ON 1 CCM C, O, R ×
P2089[L3
WITH TC].)

01-02–18
1871-1U-06B(01-02).fm 19 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Self-test Memory
DTC No. Condition MIL DC Monitor item Page
type*2 function
(See01-02-
191 DTC
P2096 Target A/F feedback system too lean ON 2 Fuel system C ×
P2096[L3
WITH TC].)
(See01-02-
P2097 Target A/F feedback system too rich ON 2 Fuel system C ×
194 DTC 01-02
P2097[L3
WITH TC].)
(See01-02-
197 DTC
P2100 Throttle actuator circuit open ON 1 CCM C, O, R ×
P2100[L3
WITH TC].)
(See01-02-
Throttle actuator circuit range/ 199 DTC
P2101 ON 1 CCM C, R ×
performance P2101[L3
WITH TC].)
(See01-02-
202 DTC
P2102 Throttle actuator circuit low input ON 1 CCM C, O, R ×
P2102[L3
WITH TC].)
(See01-02-
204 DTC
P2103 Throttle actuator circuit high input ON 1 CCM C, O, R ×
P2103[L3
WITH TC].)
(See01-02-
Throttle actuator control module 205 DTC
P2107 ON 1 CCM C, R ×
processor problem P2107[L3
WITH TC].)
(See01-02-
Throttle actuator control module 206 DTC
P2108 ON 1 CCM C, R ×
performance problem P2108[L3
WITH TC].)
(See01-02-
Throttle actuator control throttle body 207 DTC
P2119 ON 1 CCM C, R ×
range/performance P2119[L3
WITH TC].)
(See01-02-
Accelerator pedal position (APP) 208 DTC
P2122 ON 1 CCM C, O, R ×
sensor No.1 circuit low input P2122[L3
WITH TC].)
(See01-02-
Accelerator pedal position (APP) 210 DTC
P2123 ON 1 CCM C, O, R ×
sensor No.1 circuit high input P2123[L3
WITH TC].)
(See01-02-
Accelerator pedal position (APP) 212 DTC
P2127 ON 1 CCM C, O, R ×
sensor No.2 circuit low input P2127[L3
WITH TC].)
(See01-02-
Accelerator pedal position (APP) 214 DTC
P2128 ON 1 CCM C, O, R ×
sensor No.2 circuit high input P2128[L3
WITH TC].)
(See01-02-
Throttle position sensor No.1/No.2 216 DTC
P2135 ON 1 CCM C, O, R ×
voltage correlation problem P2135[L3
WITH TC].)
(See01-02-
Accelerator pedal position (APP)
217 DTC
P2138 sensor No.1/No.2 voltage correlation ON 1 CCM C, O, R ×
P2138[L3
problem
WITH TC].)
(See01-02-
218 DTC
P2177 Fuel system too lean at off idle ON 2 Fuel system C, R ×
P2177[L3
WITH TC].)

01-02–19
1871-1U-06B(01-02).fm 20 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Self-test Memory
DTC No. Condition MIL DC Monitor item Page
type*2 function
(See01-02-
220 DTC
P2178 Fuel system too rich at off idle ON 2 Fuel system C, R ×
P2178[L3
WITH TC].)
(See01-02-
223 DTC
P2187 Fuel system too lean at idle ON 2 Fuel system C, R ×
P2187[L3
WITH TC].)
(See01-02-
226 DTC
P2188 Fuel system too rich at idle ON 2 Fuel system C, R ×
P2188[L3
WITH TC].)
(See01-02-
229 DTC
P2195 Front HO2S signal stuck lean ON 2 HO2S C ×
P2195[L3
WITH TC].)
(See01-02-
231 DTC
P2196 Front HO2S signal stuck rich ON 2 HO2S C ×
P2196[L3
WITH TC].)
(See01-02-
233 DTC
P2228 BARO sensor circuit low input ON 1 CCM C, O, R ×
P2228[L3
WITH TC].)
(See01-02-
234 DTC
P2229 BARO sensor circuit high input ON 1 CCM C, O, R ×
P2229[L3
WITH TC].)
(See01-02-
Front HO2S positive current control 235 DTC
P2237 ON 2 HO2S C, O, R ×
circuit open P2237[L3
WITH TC].)
(See01-02-
Front HO2S sensor reference voltage 237 DTC
P2245 ON 2 HO2S C, O, R ×
circuit low input P2245[L3
WITH TC].)
(See01-02-
Front HO2S sensor reference voltage 239 DTC
P2246 ON 2 HO2S C, O, R ×
circuit high input P2246[L3
WITH TC].)
(See01-02-
Front HO2S negative current control 241 DTC
P2251 ON 2 HO2S C, O, R ×
circuit open P2251[L3
WITH TC].)
(See01-02-
EVAP system leak detection pump 243 DTC
P2401 ON 2 CCM C, R ×
motor circuit low P2401[L3
WITH TC].)
(See01-02-
EVAP system leak detection pump 246 DTC
P2402 ON 2 CCM C, R ×
motor circuit high P2402[L3
WITH TC].)
(See01-02-
EVAP system leak detection pump 248 DTC
P2404 ON 2 CCM C, R ×
sensor circuit malfunction P2404[L3
WITH TC].)
(See01-02-
EVAP system leak detection pump 249 DTC
P2405 ON 2 CCM C, R ×
sensor circuit low input P2405[L3
WITH TC].)
(See01-02-
EVAP system leak detection pump 250 DTC
P2407 ON 2 CCM C, R ×
sensor circuit intermittent P2407[L3
WITH TC].)

01-02–20
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
Self-test Memory
DTC No. Condition MIL DC Monitor item Page
type*2 function
(See01-02-
251 DTC
P2502 Generator terminal B circuit open OFF 1 – C, R ×
P2502[L3
WITH TC].)
(See01-02-
P2503
Generator output voltage signal no
OFF 1 Other C, R ×
252 DTC 01-02
electricity P2503[L3
WITH TC].)
(See01-02-
254 DTC
P2504 Battery overcharge OFF 1 Other C, R ×
P2504[L3
WITH TC].)
(See01-02-
PCM +BB (back-up battery) voltage 256 DTC
P2507 ON 1 CCM C, O, R ×
low P2507[L3
WITH TC].)
(See01-02-
PCM internal engine off timer 258 DTC
P2610 ON 2 CCM C ×
performance P2610[L3
WITH TC].)
Control module communication Bus
U0073 (See09-02D-7 DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM])
off
U0101 CAN system communication error (See09-02D-7 DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM])
U0121 Communication error to ABS HU/CM (See09-02D-7 DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM])
Communication error to instrument
U0155 (See09-02D-7 DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM])
cluster

*1 : California emission regulation applicable model

*2 : C; CMDTC self-test, O; KOEO self-test, R; KOER self-test

End Of Sie
DTC B1342[L3 WITH TC]
WM: CRUISE CONTROL SYSTEM

id010239815700

DTC B1342 PCM malfunction

DETECTION
• Malfunction in the PCM internal circuit.
CONDITION
POSSIBLE
• PCM internal malfunction
CAUSE

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY CURRENT STATUS OF MALFUNCTION Yes Replace the PCM, then go to the next step.
• Clear the DTC from the PCM memory using No Go to the next step.
the M-MDS.
• Is same DTC present?
2 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
WM: DTC P00XX

01-02–21
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
DTC P0011[L3 WITH TC]
id010239801600

DTC P0011 CMP Timing over-advanced

• Actual valve timing is over-advanced by 17 ° (when the following conditions are met) from the target
valve timing when the OCV is controlled at the maximum valve timing retard condition.
MONITORING CONDITION
— Engine speed is below 4,000 rpm.
— Engine coolant temperature is above 70— 110 °C {158— 230 °F}.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• OCV malfunction
• Spool valve in the OCV is stuck in the advance position.
POSSIBLE
• Variable valve timing actuator is stuck in the advance position.
CAUSE
• Loose timing chain or improper valve timing due to timing chain slippage
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY TIMING CHAIN INSTALLATION Yes Go to the next step.
• Stop the engine. No Reinstall the timing chain, then go to Step 7.
• Remove the timing chain cover.
• Is the camshaft timing mark at the correct
point?
(See 01-10-10 TIMING CHAIN REMOVAL/
INSTALLATION[L3 WITH TC].)
4 INSPECT OCV FOR MALFUNCTION Yes Go to the next step.
• Start the engine. No Replace the OCV, then go to Step 7.
• Increase the engine speed.
• Stop the engine.
• Remove the OCV.
• Inspect the position of the spool valve in the
OCV.
• Is the spool valve located at the valve retard
position?
5 INSPECT STOPPER PIN MECHANISM Yes Go to the next step.
• Remove the timing chain. No Replace the variable valve timing actuator, then go to Step
• Inspect the stopper pin. 7.
(See 01-10-27 VARIABLE VALVE TIMING
ACTUATOR INSPECTION[L3 WITH TC].)
• Is the stopper pin mechanism normal?
6 INSPECT ROTOR POSITION Yes VARIABLE VALVE TIMING MECHANISM IS NORMAL
• Remove the variable valve timing actuator.
• Is the rotor position at the maximum valve Note
timing retard? • This DTC is detected as an intermittent concern.
• The intermittent concern might be removed using the
cleaning mode of the variable valve timing control
function.

Go to the next step.

No Replace the variable valve timing actuator, go to the next
step.

01-02–22 Revised 8/2006 (Ref. No. R087/06)

1871-1U-06B(01-02).fm 23 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
7 VERIFY TROUBLESHOOTING OF DTC P0011 Yes Replace the PCM, then go to the next step.
COMPLETED (See 01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all the disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch off. 01-02
• Start the engine and warm it up completely.
• Is PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See 01-02-13 DTC TABLE[L3 WITH TC].)
(See 01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0012[L3 WITH TC]
id010239801700

DTC P0012 CMP Timing over-retarded

• Actual valve timing is over-retarded by 5 ° (when the following conditions are met) from the target
valve timing for 5 s when the OCV system control is within the feed-back range.
MONITORING CONDITION
— Engine speed is below 4,000 rpm.
— Engine coolant temperature is above 70— 110 °C {158— 230 °F}.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• OCV malfunction
• Low engine oil pressure
• Spool valve in OCV is stuck in the retard position.
• Variable valve timing actuator is stuck in the retard position.
• Following oil runners are clogged or have leakage.
POSSIBLE
Oil runners
CAUSE
• Between oil pressure switch and OCV
• Between OCV and variable valve timing actuator
• In variable valve timing actuator
• Loose timing chain or improper valve timing due to timing chain slippage
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the appropriate DTC troubleshooting procedure.
STORED DTCS (See 01-02-188 DTC P2088[L3 WITH TC] or 01-02-190
• Is DTC P2088 or P2089 present? DTC P2089[L3 WITH TC].)
No Go to the next step.
4 VERIFY ENGINE OIL PRESSURE Yes Inspect engine oil pressure.
• Start the engine. (See 01-11-2 OIL PRESSURE INSPECTION[L3 WITH
• Does the oil pressure warning light illuminate? TC].)
No Go to the next step.

01-02–23
1871-1U-06B(01-02).fm 24 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 VERIFY TIMING CHAIN INSTALLATION Yes Go to the next step.
• Stop the engine. No Reinstall the timing chain, then go to Step 8.
• Remove the timing chain cover.
• Is the camshaft timing mark at the correct
point?
(See 01-10-10 TIMING CHAIN REMOVAL/
INSTALLATION[L3 WITH TC].)
6 INSPECT OCV FOR MALFUNCTION Yes VARIABLE VALVE TIMING MECHANISM IS NORMAL
• Stop the engine.
• Remove the OCV. Note
• Inspect the position of the spool valve in the • This DTC is detected as an intermittent concern.
OCV. • The intermittent concern might be removed using the
• Is the spool valve located at the valve retard cleaning mode of the variable valve timing control
position? function.

Go to the next step.

No Replace the OCV, then go to Step 8.
7 INSPECT ENGINE OIL RUNNER Yes Repair or replace the suspected runner, then go to the next
• Inspect the following engine oil runners for step.
clogging or leakage. No VARIABLE VALVE TIMING MECHANISM IS NORMAL
— Between the oil pressure switch and the
OCV Note
— Between the OCV and the variable valve • This DTC is detected as an intermittent concern.
timing actuator • The intermittent concern might be removed using the
— In the variable valve timing actuator cleaning mode of the variable valve timing control
• Is there any clogging or leakage? function.

Go to the next step.

8 VERIFY TROUBLESHOOTING OF DTC P0012 Yes Replace the PCM, then go to the next step.
COMPLETED (See 01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch off.
• Start the engine and warm it up completely.
• Is PENDING CODE for this DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See 01-02-13 DTC TABLE[L3 WITH TC].)
(See 01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–24
1871-1U-06B(01-02).fm 25 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0016[L3 WITH TC]
id010239801800

DTC P0016 CKP-CMP correlation

• The PCM monitors the input pulses from the CKP sensor and CMP sensor. If the input pulse pick-up timing
do not match each other, the PCM determines that the camshaft position does not coincide with the
crankshaft position.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM). 01-02
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Poor connection of connector
• CMP sensor malfunction
• CKP sensor malfunction
POSSIBLE • Damaged or scratched CMP sensor pulse wheel
CAUSE • Damaged or scratched CKP sensor pulse wheel
• Foreign material on CMP sensor
• Foreign material on CKP sensor
• Improper valve timing

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT CMP SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 13.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the CMP sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT CMP SENSOR FOR FOREIGN Yes Remove foreign material from the CMP sensor, then go to
MATERIAL Step 13.
• Remove the CMP sensor. No Go to the next step.
• Inspect the CMP sensor for foreign material.
• Is there any foreign material on the CMP
sensor?
5 INSPECT CMP SENSOR PULSE WHEEL Yes Replace the camshaft, then go to Step 13.
• Visually inspect the CMP sensor pulse wheel. (See01-10-20 CYLINDER HEAD GASKET
• Is there any damage or scratching to the CMP REPLACEMENT[L3 WITH TC].)
sensor pulse wheel? No Go to the next step.
6 INSPECT CMP SENSOR Yes Go to the next step.
• Inspect the CMP sensor. No Replace the CMP, then go to Step 13.
(See01-40-45 CAMSHAFT POSITION (CMP)
SENSOR INSPECTION[L3 WITH TC].)
• Is the CMP sensor normal?
7 INSPECT CKP SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 13.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the CKP sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?

01-02–25
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
8 INSPECT CKP SENSOR FOR FOREIGN Yes Remove foreign material from the CKP sensor, then go to
MATERIAL Step 13.
• Remove the CKP sensor. No Go to the next step.
• Inspect the CKP sensor for foreign material.
• Is there any foreign material on the CKP
sensor?
9 INSPECT CKP SENSOR PULSE WHEEL Yes Replace the CKP sensor pulse wheel, then go to Step 13.
• Visually inspect the CKP sensor pulse wheel. (See01-10-10 TIMING CHAIN REMOVAL/
• Is there any damage or scratching to the CKP INSTALLATION[L3 WITH TC].)
sensor pulse wheel? No Go to the next step.
10 INSPECT CKP SENSOR Yes Go to the next step.
• Inspect the CKP sensor. No Replace the CKP sensor, then go to Step 13.
(See01-40-43 CRANKSHAFT POSITION (See01-40-42 CRANKSHAFT POSITION (CKP) SENSOR
(CKP) SENSOR INSPECTION[L3 WITH TC].) REMOVAL/INSTALLATION[L3 WITH TC].)
• Is the CKP sensor normal?
11 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 13.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
12 INSPECT VALVE TIMING Yes Go to the next step.
• Inspect valve timing. No Adjust the valve timing properly, then go to the next step.
(See01-10-10 TIMING CHAIN REMOVAL/ (See01-10-10 TIMING CHAIN REMOVAL/
INSTALLATION[L3 WITH TC].) INSTALLATION[L3 WITH TC].)
• Is valve timing normal?
13 VERIFY TROUBLESHOOTING OF DTC P0016 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
14 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0030[L3 WITH TC]
id010239801900

DTC P0030 Front HO2S heater control circuit problem

• OBD system monitors the output signal voltage from oxygen sensor which is in proportion to the element
impedance of oxygen sensor. If the output signal voltage is not between 0.75 V and 1.5 V after specified
time from engine start, heater performance is considered failed.
Monitoring condition
• 74 s elapsed from engine start
• Battery voltage:10— 18 V
DETECTION Diagnostic support note
CONDITION • This is an intermittent monitor (HO2S heater).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.

01-02–26
1871-1U-06B(01-02).fm 27 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0030 Front HO2S heater control circuit problem
• Front HO2S heater malfunction
• Connector or terminal malfunction
• Open circuit in wiring harness between front HO2S heater terminal 2D and PCM terminal 2C
POSSIBLE
• Short to ground in the wiring harness between front HO2S heater terminal 2D and PCM terminal 2C
CAUSE
• Short to power supply in the wiring harness between front HO2S heater terminal 2D and PCM terminal 2C
• Open circuit in the wiring harness between front HO2S heater terminal 1B and PCM terminal 2AC
• PCM malfunction
01-02
Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S heater related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to appropriate DTC troubleshooting procedure.
STORED DTCs (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch off, then to the ON No Go to the next step.
position (Engine off).
• Verify the related PENDING CODE or stored
DTCs using the M-MDS.
• Is DTC P0031 or P0032 also present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting for DTC on FREEZE FRAME DATA.
• Is DTC P0030 on FREEZE FRAME DATA? (See01-02-13 DTC TABLE[L3 WITH TC].)
5 INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 8.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the front HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
6 INSPECT FRONT HO2S HEATER Yes Replace the front HO2S, then go to Step 8.
• Inspect the front HO2S heater. (See01-15-2 EXHAUST SYSTEM REMOVAL/
(See01-40-37 HEATED OXYGEN SENSOR INSTALLATION[L3 WITH TC].)
(HO2S) INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
7 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
8 VERIFY TROUBLESHOOTING OF DTC P0030 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

01-02–27
1871-1U-06B(01-02).fm 28 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

End Of Sie

DTC P0031[L3 WITH TC]

id010239802000

DTC P0031 Front HO2S heater circuit low input

• The PCM monitors the front HO2S heater output voltage. If the PCM turns the front HO2S heater off or on
but the front HO2S heater circuit voltage remains low the PCM determines that the front HO2S heater
circuit has a malfunction.

Note
• The front HO2S heater is controlled by a duty signal.
DETECTION
CONDITION
Diagnostic support note
• This is a continuous monitor (HO2S heater).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S heater malfunction
• Connector or terminal malfunction
• Open circuit in the wiring harness between main relay and front HO2S terminal 2B
POSSIBLE
• Short to ground in the wiring harness between main relay and front HO2S terminal 2B
CAUSE
• Open circuit in the wiring harness between front HO2S terminal 2D and PCM terminal 2C
• Short to ground in the wiring harness between front HO2S terminal 2D and PCM terminal 2C
• PCM malfunction
MAIN RELAY PCM

FRONT HO2S HEATER

5
3 3 4 6
2B 2D 2C

FRONT HO2S
PCM
WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

1C 1A 2C 2A 2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
1D 1B 2D 2B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S heater related) been recorded?

01-02–28
1871-1U-06B(01-02).fm 29 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 9.
POOR CONNECTION No Go to the next step. 01-02
• Turn the ignition switch off.
• Disconnect the front HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
4 INSPECT FRONT HO2S HEATER POWER Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT OR SHORT TO No Repair or replace the wiring harness for a possible open
GROUND circuit or short to ground, then go to Step 9.
• Turn the ignition switch to the ON position
(Engine off).
• Measure the voltage between front HO2S
terminal 2B (wiring harness-side) and body
ground.
• Is the voltage B+?
5 INSPECT FRONT HO2S HEATER CONTROL Yes Repair or replace the wiring harness for a possible short to
CIRCUIT FOR SHORT TO GROUND ground, then go to Step 9.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between front HO2S
terminal 2D (wiring harness-side) and body
ground.
• Is there continuity?
6 INSPECT FRONT HO2S HEATER Yes Replace the front HO2S, then go to Step 9.
• Inspect the front HO2S heater. (See01-15-2 EXHAUST SYSTEM REMOVAL/
(See01-40-37 HEATED OXYGEN SENSOR INSTALLATION[L3 WITH TC].)
(HO2S) INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
7 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
8 INSPECT FRONT HO2S HEATER CONTROL Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Inspect for continuity between front HO2S
terminal 2D (wiring harness-side) and PCM
terminal 2C (wiring harness-side).
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P0031 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–29
1871-1U-06B(01-02).fm 30 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0032[L3 WITH TC]
id010239802100

DTC P0032 Front HO2S heater circuit high input

• The PCM monitors the front HO2S heater output voltage. If the PCM turns the front HO2S heater on or off
but the front HO2S heater circuit voltage remains high the PCM determines that the front HO2S heater
circuit has a malfunction.

Note
• The front HO2S heater is controlled by a duty signal.
DETECTION
CONDITION
Diagnostic support note
• This is a continuous monitor (HO2S heater).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S heater malfunction
POSSIBLE • Connector or terminal malfunction
CAUSE • Short to power supply in the wiring harness between front HO2S terminal 2D and PCM terminal 2C
• PCM malfunction
MAIN RELAY PCM

FRONT HO2S HEATER

3 6 3 5 8 7
4
2B 2D 2C

FRONT HO2S
PCM
WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

1C 1A 2C 2A 2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
1D 1B 2D 2B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–30
1871-1U-06B(01-02).fm 31 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S heater related) been recorded? 01-02
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 7.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the front HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
4 INSPECT FRONT HO2S HEATER CONTROL Yes Repair or replace the wiring harness for a possible short to
CIRCUIT FOR SHORT TO POWER SUPPLY power supply, then go to Step 7.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between front HO2S
terminal 2D (wiring harness-side) and body
ground.
• Is the voltage B+?
5 INSPECT FRONT HO2S HEATER Yes Replace the front HO2S, then go to Step 7.
• Inspect the front HO2S heater. (See01-15-2 EXHAUST SYSTEM REMOVAL/
(See01-40-37 HEATED OXYGEN SENSOR INSTALLATION[L3 WITH TC].)
(HO2S) INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
7 VERIFY TROUBLESHOOTING OF DTC P0032 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–31
1871-1U-06B(01-02).fm 32 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0037[L3 WITH TC]
id010239802200

DTC P0037 Rear HO2S heater circuit low input

• The PCM monitors the rear HO2S heater output voltage. If the PCM turns the rear HO2S heater on or off
but the rear HO2S heater circuit voltage remains low the PCM determines that the rear HO2S heater circuit
has a malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (HO2S heater).
CONDITION • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Rear HO2S heater malfunction
• Connector or terminal malfunction
• Open circuit in the wiring harness between ignition switch and rear HO2S terminal C
POSSIBLE
• Short to ground in the wiring harness between ignition switch and rear HO2S terminal C
CAUSE
• Open circuit in the wiring harness between rear HO2S terminal D and PCM terminal 2D
• Short to ground in the wiring harness between rear HO2S terminal D and PCM terminal 2D
• PCM malfunction
IGNITION SWITCH PCM

REAR HO2S HEATER

3 5 3 4 6
C D 2D

REAR HO2S
PCM
WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

A C
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B D
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S heater related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–32
1871-1U-06B(01-02).fm 33 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT REAR HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 9.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the rear HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction? 01-02
4 INSPECT REAR HO2S HEATER POWER Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT OR SHORT TO No Repair or replace the wiring harness for a possible open
GROUND circuit or short to ground, then go to Step 9.
• Turn the ignition switch to the ON position
(Engine off).
• Measure the voltage between rear HO2S
terminal C (wiring harness-side) and body
ground.
• Is the voltage B+?
5 INSPECT REAR HO2S HEATER CONTROL Yes Repair or replace the wiring harness for a possible short to
CIRCUIT FOR SHORT TO GROUND ground, then go to Step 9.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between rear HO2S
terminal D (wiring harness-side) and body
ground.
• Is there continuity?
6 INSPECT REAR HO2S HEATER Yes Replace the rear HO2S, then go to Step 9.
• Inspect the rear HO2S heater. (See01-15-2 EXHAUST SYSTEM REMOVAL/
(See01-40-37 HEATED OXYGEN SENSOR INSTALLATION[L3 WITH TC].)
(HO2S) INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
7 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
8 INSPECT REAR HO2S HEATER CONTROL Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Inspect for continuity between rear HO2S
terminal D (wiring harness-side) and PCM
terminal 2D (wiring harness-side).
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P0037 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–33
1871-1U-06B(01-02).fm 34 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0038[L3 WITH TC]
id010239802300

DTC P0038 Rear HO2S heater circuit high input

• The PCM monitors the rear HO2S heater output voltage. If the PCM turns the rear HO2S heater off but the
rear HO2S heater circuit voltage remains high the PCM determines that the rear HO2S heater circuit has a
malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (HO2S heater).
CONDITION • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Rear HO2S heater malfunction
POSSIBLE • Connector or terminal malfunction
CAUSE • Short to power supply in the wiring harness between rear HO2S terminal D and PCM terminal 2D
• PCM malfunction
IGNITION SWITCH PCM

REAR HO2S HEATER

3 6 3 7
4 5 8
C D 2D

REAR HO2S
PCM
WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

A C 2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B D
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–34
1871-1U-06B(01-02).fm 35 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S heater related) been recorded? 01-02
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT REAR HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 7.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the rear HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
4 INSPECT REAR HO2S HEATER CONTROL Yes Repair or replace the wiring harness for a possible short to
CIRCUIT FOR SHORT TO POWER SUPPLY power supply, then go to Step 7.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between rear HO2S
terminal D (wiring harness-side) and body
ground.
• Is the voltage B+?
5 INSPECT REAR HO2S HEATER Yes Replace the rear HO2S, then go to Step 7.
• Inspect the rear HO2S heater. (See01-15-2 EXHAUST SYSTEM REMOVAL/
(See01-40-37 HEATED OXYGEN SENSOR INSTALLATION[L3 WITH TC].)
(HO2S) INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
7 VERIFY TROUBLESHOOTING OF DTC P0038 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–35
1871-1U-06B(01-02).fm 36 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0069[L3 WITH TC]
id010239802400

DTC P0069 Manifold absolute pressure/atmospheric pressure correlation

• PCM monitors differences between intake manifold vacuum and atmospheric pressure. If the difference is
below –12 kPa {–90 mmHg, –3.5 inHg} or above 12 kPa {90 mmHg, 3.5 inHg} when the following
conditions are met, the PCM determines that there is a MAP sensor performance problem.
MONITORING CONDITION
— 12— 15 s from when ignition switch is turned off.
— Intake air temperature is above -10°C {14°F}.
— Engine coolant temperature is above 70°C {158°F}.
DETECTION
CONDITION Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
POSSIBLE • MAP sensor malfunction or substandard performance
CAUSE • BARO sensor malfunction or substandard performance

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY STORED DTC Yes Inspect and repair DTC P0107, P0108, P2228 or P2229.
• Turn the ignition switch to off then start the No Go to the next step.
engine.
• Have DTC P0107, P0108, P2228 or P2229
been stored?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for the DTC on the
• Is DTC P0069 on the FREEZE FRAME DATA? FREEZE FRAME DATA.
5 INSPECT MAP SENSOR STUCK OPEN OR Yes Go to the next step.
CLOSED No Replace the MAP sensor, then go to step 7.
• Inspect MAP sensor. (See01-40-29 MANIFOLD ABSOLUTE PRESSURE (MAP)
(See01-40-29 MANIFOLD ABSOLUTE SENSOR/BOOST AIR TEMPERATURE SENSOR
PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].)
• Is the MAP sensor normal?
6 INSPECT BARO SENSOR Yes Go to the next step.
• Inspect the BARO sensor. No Replace the PCM, then go to the next step.
(See01-40-48 BAROMETRIC PRESSURE (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
(BARO) SENSOR INSPECTION[L3 WITH TC].)
TC].)
• Is the BARO sensor normal?
7 VERIFY TROUBLESHOOTING OF DTC P0069 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Clear the DTC from the memory using the M-
MDS.
• Start the engine.
• Is the same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

01-02–36
1871-1U-06B(01-02).fm 37 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

End Of Sie

DTC P0089[L3 WITH TC]

id010239802500

DTC P0089 Fuel pressure regulator performance

• If the fuel pressure average value measured by the PCM exceeds the specification when the camshaft is
rotating at a specified rate, the PCM determines that there is a fuel pressure regulator performance
problem.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (Other). 01-02
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• DTCs are stored in the PCM memory.
• Spill valve control solenoid valve malfunction
POSSIBLE
• Connector or terminal malfunction
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT HIGH PRESSURE FUEL PUMP Yes Repair or replace the terminals, then go to Step 6.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the high pressure fuel pump
connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT SPILL VALVE CONTROL SOLENOID Yes Replace the high pressure fuel pump, then go to Step 6.
VALVE (See01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
• Inspect the spill valve control solenoid valve. INSTALLATION[L3 WITH TC].)
(See01-14-19 HIGH PRESSURE FUEL No Go to the next step.
PUMP INSPECTION[L3 WITH TC].)
• Is there any malfunction?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion.)
• Is there any malfunction?
6 VERIFY TROUBLESHOOTING OF DTC P0089 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all the disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
7 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–37
1871-1U-06B(01-02).fm 38 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0091[L3 WITH TC]
id010239802600

DTC P0091 Fuel pressure regulator control circuit low

• When the PCM turns the spill valve control solenoid valve off but the spill valve control solenoid valve
control circuit voltage is low, the PCM determines that the spill valve control solenoid valve control circuit
has malfunction.
MONITORING CONDITIONS
— The following conditions are met:
DETECTION • Engine speed is 3,000 rpm or less.
CONDITION • Battery voltage is 10 V or more.
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Spill valve control solenoid valve malfunction
• Open circuit in the wiring harness between high pressure fuel pump terminal A and PCM terminal 2F
• Open circuit in the wiring harness between high pressure fuel pump terminal B and PCM terminal 2G
POSSIBLE
• Short to ground in the wiring harness between high pressure fuel pump terminal A and PCM terminal 2F
CAUSE
• Short to ground in the wiring harness between high pressure fuel pump terminal B and PCM terminal 2G
• Connector or terminal malfunction
• PCM malfunction
PCM
SPILL VALVE CONTROL
SOLENOID VALVE
(HIGH PRESSURE FUEL PUMP)

3 6 5
A 2F

3 6 5
B 2G

HIGH PRESSURE FUEL PUMP PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related service repair information • If the vehicle is not repaired, go to the next step.
availability. No Go to the next step.
• Is any related repair information available?

01-02–38
1871-1U-06B(01-02).fm 39 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT HIGH PRESSURE FUEL PUMP Yes Repair or replace the terminal, then go to Step 8.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the high pressure fuel pump
connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion). 01-02
• Is there any malfunction?
4 INSPECT SPILL VALVE CONTROL SOLENOID Yes Repair or replace the wiring harness for a possible short to
VALVE CONTROL CIRCUIT FOR SHORT TO ground, then go to Step 8.
GROUND No Go to the next step.
• Turn the ignition switch off.
• Inspect for continuity between the following
terminals:
— High pressure fuel pump terminal A (wiring
harness-side) and body ground
— High pressure fuel pump terminal B (wiring
harness-side) and body ground
• Is there continuity?
5 INSPECT SPILL VALVE CONTROL SOLENOID Yes Replace the high pressure fuel pump, then go to Step 8.
VALVE (See01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
• Inspect the spill valve control solenoid valve. INSTALLATION[L3 WITH TC].)
(See01-14-19 HIGH PRESSURE FUEL No Go to the next step.
PUMP INSPECTION[L3 WITH TC].)
• Is there any malfunction.
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 8.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 INSPECT SPILL VALVE CONTROL SOLENOID Yes Go to the next step.
VALVE CONTROL CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Inspect for continuity between the following
terminals:
— High pressure fuel pump terminal A (wiring
harness-side) and PCM terminal 2F (wiring
harness-side)
— High pressure fuel pump terminal B (wiring
harness-side) and PCM terminal 2G (wiring
harness-side)
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0091 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all the disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–39
1871-1U-06B(01-02).fm 40 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0092[L3 WITH TC]
id010239802700

DTC P0092 Fuel pressure regulator control circuit high

• When the PCM turns the spill valve control solenoid valve on but the spill valve control solenoid valve circuit
voltage is high, the PCM determines that the spill valve control solenoid valve control circuit has
malfunction.
MONITORING CONDITIONS
— The following conditions are met:
DETECTION • Engine speed is 3,000 rpm or less.
CONDITION • Battery voltage is 10 V or more.
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Spill valve control solenoid valve malfunction
• Connector or terminal malfunction
POSSIBLE
• Short to power supply in the wiring harness between high pressure fuel pump terminal B and PCM terminal
CAUSE
2G
• PCM malfunction
PCM
SPILL VALVE CONTROL
SOLENOID VALVE
(HIGH PRESSURE FUEL PUMP)
3 4 7 6
A 2F

3 4 7 6
B 2G

HIGH PRESSURE FUEL PUMP PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–40
1871-1U-06B(01-02).fm 41 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Verify related service repair information • If the vehicle is not repaired, go to the next step.
availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT HIGH PRESSURE FUEL PUMP Yes Repair or replace the terminal, then go to Step 7.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the high pressure fuel pump
connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT SPILL VALVE CONTROL SOLENOID Yes Replace the high pressure fuel pump, then go to Step 7.
VALVE (See01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
• Inspect the spill valve control solenoid valve. INSTALLATION[L3 WITH TC].)
(See01-14-19 HIGH PRESSURE FUEL No Go to the next step.
PUMP INSPECTION[L3 WITH TC].)
• Is there any malfunction.
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 7.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
6 INSPECT SPILL VALVE CONTROL SOLENOID Yes Repair or replace the wiring harness for a possible short to
VALVE CONTROL CIRCUIT FOR SHORT TO the power supply, then go to the next step.
POWER SUPPLY No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Measure the voltage between the following
terminals:
— High pressure fuel pump terminal A (wiring
harness-side) and body ground
— High pressure fuel pump terminal B (wiring
harness-side) and body ground
• Is the voltage B+?
7 VERIFY TROUBLESHOOTING OF DTC P0092 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all the disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–41
1871-1U-06B(01-02).fm 42 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0096[L3 WITH TC]
id010239802800

DTC P0096 Boost air temperature sensor circuit range/performance problem

• If the intake air temperature is higher than the engine coolant temperature by 23 °C {41.4 °F} for 1.2 s with
the ignition switch turn to the ON position*, the PCM determines that there is a boost air temperature
sensor circuit range/performance problem.
*: Ignition switch on when 6 h or more has passed since the ignition switch was turned off
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Boost air temperature sensor malfunction
POSSIBLE • ECT sensor malfunction
CAUSE • Connector or terminal malfunction
• PCM malfunction
PCM
BOOST AIR TEMPERATURE SENSOR

3 6
B 2N

3 6
A 2AV

MAP/BOOST AIR TEMPERATURE SENSOR PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
D C B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–42
1871-1U-06B(01-02).fm 43 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT MAP/BOOST AIR TEMPERATURE Yes Repair or replace the terminal, then go to Step 7.
SENSOR CONNECTOR FOR POOR No Go to the next step.
CONNECTION
• Turn the ignition switch off.
• Disconnect the MAP/boost air temperature
sensor connector.
• Inspect for poor connection (damaged, pulled-
out pins, corrosion, etc.).
• Is there any malfunction?
4 INSPECT BOOST AIR TEMPERATURE SENSOR Yes Replace the MAP/boost air temperature sensor, then go to
• Inspect the boost air temperature sensor. Step 7.
(See01-40-31 BOOST AIR TEMPERATURE (See01-40-29 MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR INSPECTION[L3 WITH TC].) SENSOR/BOOST AIR TEMPERATURE SENSOR
• Is there any malfunction? REMOVAL/INSTALLATION[L3 WITH TC].)
No Go to the next step.
5 INSPECT ECT SENSOR Yes Replace the ECT sensor, then go to Step 7.
• Inspect the ECT sensor. (See01-40-24 ENGINE COOLANT TEMPERATURE (ECT)
(See01-40-25 ENGINE COOLANT SENSOR REMOVAL/INSTALLATION[L3 WITH TC].)
TEMPERATURE (ECT) SENSOR No Go to the next step.
INSPECTION[L3 WITH TC].)
• Is there any malfunction?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (damaged, pulled-
out pins, corrosion, etc.).
• Is there any malfunction?
7 VERIFY TROUBLESHOOTING OF DTC P0096 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to connect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and run it under the FREEZE
FRAME DATA condition.
• Is the same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–43
1871-1U-06B(01-02).fm 44 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0097[L3 WITH TC]
id010239802900

DTC P0097 Boost air temperature sensor circuit low

• If the PCM detects that the boost air temperature sensor voltage is 0.1 V or less, the PCM determines that
the boost air temperature sensor circuit voltage is low.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Boost air temperature sensor malfunction
POSSIBLE • Short to ground circuit between MAP/boost air temperature sensor terminal B and PCM terminal 2N
CAUSE • Connector or terminal malfunction
• PCM malfunction
PCM
BOOST AIR TEMPERATURE SENSOR

3 6
4
B 2N

3 6
A 2AV

MAP/BOOST AIR TEMPERATURE SENSOR PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
D C B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–44
1871-1U-06B(01-02).fm 45 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT MAP/BOOST AIR TEMPERATURE Yes Repair or replace the terminal, then go to Step 7.
SENSOR CONNECTOR FOR POOR No Go to the next step.
CONNECTION
• Turn the ignition switch off.
• Disconnect the MAP/boost air temperature
sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT BOOST AIR TEMPERATURE SENSOR Yes Repair or replace the wiring harness for a short to ground,
SIGNAL CIRCUIT FOR SHORT TO GROUND then go to Step 7.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between the MAP/boost
air temperature sensor terminal B (wiring
harness-side) and body ground.
• Is there continuity?
5 INSPECT BOOST AIR TEMPERATURE SENSOR Yes Replace the MAP/boost air temperature sensor, then go to
• Inspect the boost air temperature sensor. Step 7.
(See01-40-31 BOOST AIR TEMPERATURE (See01-40-29 MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR INSPECTION[L3 WITH TC].) SENSOR/BOOST AIR TEMPERATURE SENSOR
• Is there malfunction? REMOVAL/INSTALLATION[L3 WITH TC].)
No Go to the next step.
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 VERIFY TROUBLESHOOTING OF DTC P0097 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to connect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–45
1871-1U-06B(01-02).fm 46 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0098[L3 WITH TC]
id010239803000

DTC P0098 Boost air temperature sensor circuit high

• If the PCM detects that the boost air temperature sensor voltage is 4.96 V or more, the PCM determines
that the boost air temperature sensor circuit voltage is high.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Boost air temperature sensor malfunction
• Open circuit between MAP/boost air temperature sensor terminal A and PCM terminal 2AV
• Open circuit between MAP/boost air temperature sensor terminal B and PCM terminal 2N
POSSIBLE
• Short to the power circuit between MAP/boost air temperature sensor terminal A and PCM terminal 2AV
CAUSE
• Short to the power circuit between MAP/boost air temperature sensor terminal B and PCM terminal 2N
• Connector or terminal malfunction
• PCM malfunction
PCM
BOOST AIR TEMPERATURE SENSOR

3 6
4 7
B 2N

3 6
4 7
A 2AV

MAP/BOOST AIR TEMPERATURE SENSOR PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
D C B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–46
1871-1U-06B(01-02).fm 47 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT MAP/BOOST AIR TEMPERATURE Yes Repair or replace the terminal, then go to Step 8.
SENSOR CONNECTOR FOR POOR No Go to the next step.
CONNECTION
• Turn the ignition switch off.
• Disconnect the MAP/boost air temperature
sensor connector.
• Inspect for poor connection (damaged, pulled- 01-02
out pins, corrosion, etc.).
• Is there any malfunction?
4 INSPECT MAP/BOOST AIR TEMPERATURE Yes Repair or replace the wiring harness for a possible short to
SENSOR CIRCUIT FOR SHORT TO POWER power supply, then go to Step 8.
SUPPLY No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Measure the voltage between the following
terminals:
— MAP/boost air temperature sensor terminal
B (wiring harness-side) and body ground
— MAP/boost air temperature sensor terminal
A (wiring harness-side) and body ground
• Is the voltage B+?
5 INSPECT BOOST AIR TEMPERATURE SENSOR Yes Replace the MAP/boost air temperature sensor, then go to
• Inspect the boost air temperature sensor Step 8.
connector. (See01-40-29 MANIFOLD ABSOLUTE PRESSURE (MAP)
(See01-40-31 BOOST AIR TEMPERATURE SENSOR/BOOST AIR TEMPERATURE SENSOR
SENSOR INSPECTION[L3 WITH TC].) REMOVAL/INSTALLATION[L3 WITH TC].)
• Is there any malfunction? No Go to the next step.
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 8.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (damaged, pulled-
out pins, corrosion, etc.).
• Is there any malfunction?
7 INSPECT MAP/BOOST AIR TEMPERATURE Yes Go to the next step.
SENSOR CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Measure the voltage between the following
terminals:
— MAP/boost air temperature sensor terminal
B (wiring harness-side) and PCM terminal
2N (wiring harness-side)
— MAP/boost air temperature sensor terminal
A (wiring harness-side) and PCM terminal
2AV (wiring harness-side)
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0098 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to connect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
WM: DTC P01XX

01-02–47
1871-1U-06B(01-02).fm 48 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0101[L3 WITH TC]
id010239803100

DTC P0101 MAF circuit range/performance problem

• PCM monitors the mass intake air flow amount when the engine is running.
— If the mass intake air amount is above 71.8 l/s for 6 s and engine speed is below 2,000 rpm with the
engine running, the PCM determines that detected mass intake air flow amount is too high.
— If the mass intake air flow amount is below 3.0— 88.7 l/s (The value depends on engine speed.) for 6 s
and the engine speed is above 1,000 rpm with engine running and the throttle opening angle is above
50%, the PCM determines that the detected mass intake air flow amount is too low.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• MAF sensor malfunction
POSSIBLE
• Electrical corrosion in MAF RETURN circuit
CAUSE
• Voltage drops in the ground circuit

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY CURRENT INPUT SIGNAL STATUS IS Yes Go to the next step.
CONCERN INTERMITTENT OR CONSTANT No Intermittent concern exists. Go to INTERMITTENT
• Connect the M-MDS to DLC-2. CONCERNS TROUBLESHOOTING procedure.
• Start the engine. (See01-03-76 INTERMITTENT CONCERN
• Access the ECT, MAF, TP and RPM PIDs using TROUBLESHOOTING[L3 WITH TC])
the M-MDS.
• Warm-up the engine until the ECT PID is
above 70°C {158°F}.
• Idle engine for5 s or more.
Caution
• While driving, always operate the
vehicle in a safe and lawful manner.

• Drive the vehicle under the following two

conditions:
Condition 1
— TP PID: 50— 87.5%
— RPM PID: above 1,000 rpm
— 4th gear
Condition 2
— TP PID: above 80%
— RPM PID: below 2,000 rpm
— gear in
• Is the PENDING CODE for this DTC present?
4 CHECK MAF SENSOR TERMINALS FOR Yes Repair or the replace suspected terminal or MAF sensor,
ELECTRICAL CORROSION then go to Step 6.
• Turn the ignition switch off. No Go to the next step.
• Disconnect the MAF sensor connector.
• Check for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is any problem corrosion found?

01-02–48
1871-1U-06B(01-02).fm 49 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair terminal, then go to the next step.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Check for poor connection (damaged, pulled-
out pins, corrosion, etc.).
• Is there any malfunction?
6 VERIFY TROUBLESHOOTING OF DTC P0101 Yes Replace the PCM, then go to the next step. 01-02
COMPLETED No Go to the next step.
• Make sure to connect all disconnected
connectors.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Warm-up engine until ECT PID is above 70°C
{158°F}.
• Idle engine for 5 s or more.
Caution
• While performing the Drive Mode,
always operate the vehicle in a safe
and lawful manner.

• Drive the vehicle under the following two

conditions:
Condition 1
— TP PID:50— 87.5%
— RPM PID: above 1,000 rpm
— 4th gear
Condition 2
— TP PID: above 80%
— RPM PID: below 2,000 rpm
— gear in
• Is the PENDING CODE for this DTC present?
7 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC])
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC])
• Are any DTCs present?

End Of Sie

01-02–49
1871-1U-06B(01-02).fm 50 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0102[L3 WITH TC]
id010239803200

DTC P0102 MAF circuit low input

• PCM monitors input voltage from the MAF sensor when engine is running. If the input voltage is below 0.21
V, the PCM determines that the MAF circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• MAF sensor malfunction
• Connector or terminal malfunction
POSSIBLE
• Short to ground in the wiring harness between MAF/IAT sensor terminal C and PCM terminal 1AK
CAUSE
• Open circuit in the wiring harness between MAF/IAT sensor terminal C and PCM terminal 1AK
• Open circuit in the wiring harness between main relay and MAF/IAT sensor terminal A
MAF SENSOR MAIN RELAY PCM

3 4
A

3 6 7 5
C 1AK

3 5
B 1P

MAF/IAT SENSOR PCM

HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
E D C B A
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

01-02–50
1871-1U-06B(01-02).fm 51 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT MAF SENSOR CONNECTOR FOR Yes Repair or replace terminals, then go to Step 8.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the MAF/IAT sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT POWER SUPPLY CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Inspect for an open circuit in the wiring harness between
• Turn ignition switch to the ON position (Engine MAF/IAT sensor terminal A (harness-side) and the main
off). relay.
• Inspect voltage at MAF/IAT sensor terminal A Repair or replace the wiring harness, then go to Step 8.
(harness-side).
• Is voltage B+?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair terminal, then go to Step 8.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
6 INSPECT MAF SENSOR SIGNAL CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or the replace suspected wiring harness, then go to
• Remove the PCM with the PCM connector Step 8.
connected.
• Inspect for continuity between MAF/IAT sensor
terminal C (harness-side) and PCM terminal
1AK (harness-side).
• Is there continuity?
7 INSPECT MAF SENSOR SIGNAL CIRCUIT FOR Yes Repair or replace the suspected wiring harness, then go to
SHORT CIRCUIT the next step.
• Inspect for continuity between the MAF/IAT No Replace the MAF/IAT sensor, then go to the next step.
sensor terminal C (harness-side) and body
ground.
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0102 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is the same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–51
1871-1U-06B(01-02).fm 52 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0103[L3 WITH TC]
id010239803300

DTC P0103 MAF circuit high input

• The PCM monitors input voltage from the MAF sensor when the engine is running. If the input voltage is
above 4.9 V, the PCM determines that the MAF circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• MAF sensor malfunction
POSSIBLE • Connector or terminal malfunction
CAUSE • Short to power supply in the wiring harness between MAF/IAT sensor terminal C and PCM terminal 1AK
• Open circuit in the wiring harness between MAF/IAT sensor terminal B and PCM terminal 1P
MAF SENSOR MAIN RELAY PCM

3
A

3 4 5
C 1AK

3 6 5
B 1P

MAF/IAT SENSOR PCM

HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
E D C B A
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

01-02–52
1871-1U-06B(01-02).fm 53 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT MAF SENSOR CONNECTOR FOR Yes Repair or replace terminals, then go to Step 7.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the MAF/IAT sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT MAF SIGNAL CIRCUIT FOR SHORT Yes Go to the next step.
TO POWER SUPPLY No Repair or replace the suspected wiring harness, then go to
• Turn ignition switch to the ON position (Engine Step 7.
off).
• Measure voltage between MAF/IAT sensor
terminal C (harness-side) and body ground.
• Is voltage 0 V?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to Step 7.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
6 INSPECT MAF SENSOR GROUND CIRCUIT Yes Go to the next step.
FOR OPEN CIRCUIT No Repair or replace the suspected wiring harness, then go to
• Remove the PCM with the PCM connector the next step.
connected.
• Inspect for continuity between MAF/IAT sensor
terminal B (harness-side) and PCM terminal
1P.
• Is there continuity?
7 VERIFY TROUBLESHOOTING OF DTC P0103 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–53
1871-1U-06B(01-02).fm 54 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0107[L3 WITH TC]
id010239803400

DTC P0107 MAP sensor circuit low input

• PCM monitors input voltage from the MAP sensor when the intake air temperature is above –10 °C {14 °F}.
If the input voltage is below 0.10 V, the PCM determines that the MAP sensor circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• MAP sensor malfunction
• Connector or terminal malfunction
POSSIBLE • Short to ground in the wiring harness between MAP sensor terminal D and PCM terminal 2AG
CAUSE • Open circuit in the wiring harness between MAP sensor terminal C and PCM terminal 2AU
• MAP sensor signal circuit and MAP sensor ground circuit are shorted to each other.
• PCM malfunction
MAP SENSOR PCM

4
C 2AU

5 6
D 2AG

6
A 2AV

MAP SENSOR PCM

HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
D C B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–54
1871-1U-06B(01-02).fm 55 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Recorded FREEZE FRAME DATA on the repair order, then
• Has the FREEZE FRAME DATA been go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY MAP PID WHEN MAP SENSOR Yes Go to the next step.
CONNECTOR IS DISCONNECTED No Go to step 5.
• Disconnect the MAP sensor connector.
• Is the voltage above 4.9 V?
4 INSPECT POWER SUPPLY CIRCUIT VOLTAGE Yes Check for a poor connection of MAP sensor terminal C
AT MAP SENSOR CONNECTOR (harness-side).
• Repair or replace the terminal if necessary.
Note • If normal, replace the MAP sensor.
• If DTC P0122 and P2228 are also retrieved Then go to Step 7.
with P0107, go to the CONSTANT No Check for an open circuit between PCM terminal 2K
VOLTAGE troubleshooting procedure. (harness-side) and MAP sensor terminal C (harness-side).
Repair or replace the suspected wiring harness, then go to
• Turn ignition switch to the ON position (Engine Step 7.
off).
• Measure voltage between MAP sensor
terminal C (harness-side) and body ground.
• Is the voltage within 4.5— 5.5 V?
5 INSPECT MAP SENSOR SIGNAL CIRCUIT FOR Yes Repair or replace the suspected wiring harness, then go to
SHORT TO GROUND Step 7.
• Turn the ignition switch off. No Go to the next step.
• Disconnect the PCM connector.
• Inspect for continuity between MAP sensor
terminal D (harness-side) and body ground.
• Is there continuity?
6 INSPECT MAP SENSOR SIGNAL AND Yes Repair or replace the suspected wiring harness, then go to
GROUND CIRCUIT FOR SHORT EACH OTHER the next step.
• Check for continuity between MAP sensor No Go to the next step.
terminals D and A (harness-side).
• Is there continuity?
7 VERIFY TROUBLESHOOTING OF DTC P0107 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start engine and warm it up completely.
• Is same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–55
1871-1U-06B(01-02).fm 56 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0108[L3 WITH TC]
id010239803500

DTC P0108 MAP sensor circuit high input

• PCM monitors input voltage from the MAP sensor when the intake air temperature is above –10 °C {14 °F}.
If the input voltage is above 4.9 V, the PCM determines that MAP sensor circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• MAP sensor malfunction
• Connector or terminal malfunction
POSSIBLE • Open circuit in the wiring harness between MAP sensor terminal A and PCM terminal 2AV
CAUSE • Open circuit in the wiring harness between MAP sensor terminal D and PCM terminal 2AG
• MAP sensor signal circuit short to the constant voltage supply circuit
• PCM malfunction
MAP SENSOR PCM

7
3 4 6
C 2AU

7
3 4 8 6
D 2AG

3 4 5 6
A 2AV

MAP SENSOR PCM

HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
D C B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–56
1871-1U-06B(01-02).fm 57 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT CONNECTION OF MAP SENSOR Yes Go to the next step.
CONNECTOR No Reconnect the connector, then go to Step 9.
• Turn the ignition switch off.
• Verify that the MAP sensor connector is
connected securely.
• Is the connection normal?
4 INSPECT MAP SENSOR CONNECTOR FOR Yes Repair or replace the suspected terminal, then go to Step
POOR CONNECTION 9.
• Disconnect the MAP sensor connector. No Go to the next step.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
5 VERIFY MAP SENSOR GROUND CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Inspect for an open circuit between PCM terminal 2AV
• Inspect for continuity between MAP sensor (harness-side) and MAP sensor terminal A (harness-side).
terminal A (harness-side) and body ground. Repair or replace the suspected wiring harness, then go to
• Is there continuity? Step 9.
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged,
pulled-out pins, corrosion).
• Is there any malfunction?
7 VERIFY MAP SENSOR SIGNAL CIRCUIT FOR Yes Repair or replace the suspected wiring harness, then go to
SHORT TO CONSTANT VOLTAGE CIRCUIT Step 9.
• Inspect for continuity between MAP sensor No Go to the next step.
terminal D and C (harness-side).
• Is there continuity?
8 VERIFY MAP SENSOR SIGNAL CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the suspected wiring harness, then go to
• Inspect for continuity between MAP sensor the next step.
terminal D (harness-side) and PCM terminal
2AG (harness-side).
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P0108 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to applicable inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–57
1871-1U-06B(01-02).fm 58 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0111[L3 WITH TC]
id010239803600

DTC P0111 IAT circuit performance problem

• If the intake air temperature is higher than the engine coolant temperature by 18 °C {32.4 °F} for 1.2 s with
the ignition switch turn in the ON position*, the PCM determines that there is an IAT sensor circuit range/
performance problem.
*: Ignition switch is in the ON position when 6 h or more have passed since the ignition switch was turned off
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• IAT sensor malfunction
POSSIBLE
• Poor connection at MAF/IAT sensor or PCM connector
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT MAF/IAT SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 6.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the MAF/IAT sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT IAT SENSOR Yes Replace MAF/IAT sensor, then go to Step 6.
• Inspect IAT sensor. No Go to the next step.
(See01-40-27 INTAKE AIR TEMPERATURE
(IAT) SENSOR INSPECTION[L3 WITH TC].)
• Is IAT sensor normal?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
6 VERIFY TROUBLESHOOTING OF DTC P0111 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and run the engine under the
FREEZE FRAME DATA condition.
• Is PENDING CODE for this DTC present?
7 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure“. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–58
1871-1U-06B(01-02).fm 59 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0112[L3 WITH TC]
id010239803700

DTC P0112 IAT circuit low input

• The PCM monitors the IAT sensor signal. If the PCM detects on IAT sensor voltage below 0.06 V, the PCM
determines that the IAT sensor circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle. 01-02
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• IAT sensor malfunction
• Poor connection at the MAF/IAT sensor or PCM connector
POSSIBLE
• Short to ground between MAF/IAT sensor terminal D and PCM terminal 1M
CAUSE
• Short to each harness IAT signal circuit and IAT ground circuit.
• PCM malfunction
PCM
IAT SENSOR

3 5 6
D 1M

3 6
E 1AR

MAF/IAT SENSOR PCM

HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
E D C B A
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

01-02–59
1871-1U-06B(01-02).fm 60 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT IAT SENSOR TERMINAL Yes Repair or replace the terminal, then go to Step 7.
• Turn the ignition switch off. No Go to the next step.
• Disconnect the MAF/IAT sensor connector.
• Inspect for bent terminal of MAF/IAT sensor
terminals D and E (part-side).
• Is there any malfunction?
4 CLASSIFY IAT SENSOR MALFUNCTION OR Yes Replace the MAF/IAT sensor, then go to Step 7.
WIRING HARNESS MALFUNCTION No Go to the next step.
• Connect the M-MDS to DLC-2.
• Access the IAT PID.
• Verify the IAT value when disconnecting the
MAF/IAT sensor connector.
• Does the IAT value change?
5 INSPECT IAT SIGNAL CIRCUIT FOR SHORT TO Yes Repair or replace the wiring harness for a short to ground,
GROUND then go to Step 7.
• Turn the ignition switch off. No Go to the next step.
• Disconnect the PCM connector.
• Inspect for continuity between MAF/IAT sensor
terminal D (harness-side) and body ground.
• Is there continuity?
6 INSPECT IAT CIRCUITS FOR SHORT Yes Repair or the replace harness for a short, then go to the
• Inspect for continuity between MAF/IAT sensor next step.
terminals D and E (harness-side). No Go to the next step.
• Is there continuity?
7 VERIFY TROUBLESHOOTING OF DTC P0112 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–60
1871-1U-06B(01-02).fm 61 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0113[L3 WITH TC]
id010239803800

DTC P0113 IAT circuit high input

• The PCM monitors the IAT sensor signal. If the PCM detected IAT sensor voltage above 4.9 V, the PCM
determines that the IAT sensor circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle. 01-02
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• IAT sensor malfunction
• Open circuit between MAF/IAT sensor terminal D and PCM terminal 1M
POSSIBLE • Short to the power supply between MAF/IAT sensor terminal D and PCM terminal 1M
CAUSE • Open circuit between MAF/IAT sensor terminal E and PCM terminal 1AR
• Poor connection at the MAF/IAT sensor or the PCM connector.
• PCM malfunction
PCM
IAT SENSOR

3 5 7 6
D 1M

3 8 6
E 1AR

MAF/IAT SENSOR PCM

HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
E D C B A
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–61
1871-1U-06B(01-02).fm 62 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT IAT SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 9.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the MAF/IAT sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 CLASSIFY IAT SENSOR MALFUNCTION OR Yes Replace the MAF/IAT sensor, then go to Step 9.
HARNESS MALFUNCTION No Go to the next step.
• Connect the M-MDS to the DLC-2.
• Access the IAT PID.
• Connect a jumper wire between MAF/IAT
sensor terminals D and E (harness-side).
• Verify the IAT value.
• Is the voltage below 4.9 V?
5 INSPECT IAT SENSOR SIGNAL CIRCUIT FOR Yes Repair or the wiring replace wiring harness for a short to
SHORT TO POWER SUPPLY the power supply, then go to Step 9.
• Turn ignition switch to the ON position (Engine No Go to the next step.
off).
• Measure the voltage between MAF/IAT sensor
terminal D (wiring harness-side) and body
ground.
• Is the voltage B+?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect PCM connector.
• Inspect PCM terminals 1M and 1AR (harness-
side) for tightness using a feeler tool.
• Is there any malfunction?
7 INSPECT IAT SENSOR SIGNAL CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Inspect for continuity between MAF/IAT sensor then go to Step 9.
terminal D (harness-side) and PCM terminal
2V (harness-side).
• Is there continuity?
8 INSPECT IAT SENSOR GROUND CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the wi ring harness for an open circuit,
• Inspect for continuity between MAF/IAT sensor then go to the next step.
terminal E (harness-side) and PCM terminal
2H (harness-side).
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P0113 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–62
1871-1U-06B(01-02).fm 63 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0116[L3 WITH TC]
id010239803900

DTC P0116 ECT circuit range/performance problem

• The PCM monitors the maximum value and minimum value of engine coolant temperature when the engine
is started and5 min have been passed after leaving the vehicle 6 h or more. If the difference between the
maximum and the minimum values of the engine coolant temperature is below 6 °C {10.8 °F}, the PCM
determines that there is an ECT circuit range/performance problem.
DETECTION
Diagnostic support note 01-02
CONDITION
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• ECT sensor malfunction
POSSIBLE
• Connector or terminal malfunction
CAUSE
• PCM malfunction
PCM
ECT SENSOR

3 5
A 2AH

3 5
B 2AY

PCM
ECT SENSOR WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR
2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to ne, then go next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT ECT SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 6.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the ECT sensor connector.
• Inspect for poor connection (damaged, pulled-
out pins, corrosion, etc.).
• Is there any malfunction?

01-02–63
1871-1U-06B(01-02).fm 64 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT ECT SENSOR Yes Replace the ECT sensor, then go to Step 6.
• Inspect the ECT sensor. (See01-40-24 ENGINE COOLANT TEMPERATURE (ECT)
(See01-40-25 ENGINE COOLANT SENSOR REMOVAL/INSTALLATION[L3 WITH TC].)
TEMPERATURE (ECT) SENSOR No Go to the next step.
INSPECTION[L3 WITH TC].)
• Is there any malfunction?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (damaged, pulled-
out pins, corrosion, etc.).
• Is there any malfunction?
6 VERIFY TROUBLESHOOTING OF DTC P0116 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Leave vehicle for8 h. TC].)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and wait for5 min.
• Is the same DTC present?
7 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC])
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC])
• Are any DTCs present?

End Of Sie
DTC P0117[L3 WITH TC]
id010239804000

DTC P0117 ECT sensor circuit low input

• The PCM monitors the ECT sensor signal. If the PCM detects the ECT sensor voltage below 0.2 V, the
PCM determines that the ECT sensor circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (Engine cooling system).
• The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• ECT sensor malfunction
• Connect or terminal malfunction
POSSIBLE
• Short to ground in the wiring harness between ECT sensor terminal A and PCM connector terminal 2AH
CAUSE
• Short to each wiring harness in ECT signal circuit and ECT ground circuit
• PCM malfunction

01-02–64
1871-1U-06B(01-02).fm 65 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0117 ECT sensor circuit low input
PCM
ECT SENSOR

3 5 6
A 2AH
01-02

3 6
B 2AY

PCM
ECT SENSOR WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR
2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Engine cooling system related) been
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FOR BENT TERMINALS Yes Repair or replace the terminal, then go to Step 7.
• Turn the ignition switch off. No Go to the next step.
• Disconnect the ECT sensor connector.
• Inspect ECT sensor terminals A and B (part-
side) for bending.
• Is there any malfunction?
4 CLASSIFY ECT SENSOR MALFUNCTION OR Yes Replace the ECT sensor, then go to Step 7.
WIRING HARNESS MALFUNCTION (See01-40-24 ENGINE COOLANT TEMPERATURE (ECT)
• Connect the M-MDS to DLC-2. SENSOR REMOVAL/INSTALLATION[L3 WITH TC].)
• Access the ECT PID. No Go to the next step.
• Verify the ECT value when disconnecting the
ECT sensor connector.
• Does the ECT value change?

01-02–65
1871-1U-06B(01-02).fm 66 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 INSPECT ECT SIGNAL CIRCUIT FOR SHORT Yes Repair or replace the wiring harness for a short to ground,
TO GROUND then go to Step 7.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between ECT sensor
terminal A (wiring harness-side) and body
ground.
• Is there continuity?
6 INSPECT ECT CIRCUIT FOR SHORT TO Yes Repair or replace the wiring harness for a short, then go to
WIRING HARNESSES the next step.
• Inspect for continuity between ECT sensor No Go to the next step.
terminal A and B (wiring harness-side).
• Is there continuity?
7 VERIFY TROUBLESHOOTING OF DTC P0117 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0118[L3 WITH TC]
id010239804100

DTC P0118 ECT sensor circuit high input

• The PCM monitors the ECT sensor signal. If the PCM detects the ECT sensor voltage is above 4.6 V, the
PCM determines that the ECT sensor circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (Engine cooling system).
• The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• ECT sensor malfunction
• Connect or terminal malfunction
POSSIBLE • Open circuit in the wiring harness between ECT sensor terminal A and PCM terminal 2AH
CAUSE • Short to power supply in the wiring harness between ECT sensor terminal A and PCM terminal 2AH
• Open circuit in the wiring harness between ECT sensor terminal B and PCM terminal 2AY
• PCM malfunction

01-02–66
1871-1U-06B(01-02).fm 67 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0118 ECT sensor circuit high input
PCM
ECT SENSOR

3 5 6
A 2AH
7 01-02

3 8 6
B 2AY

PCM
ECT SENSOR WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR
2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Engine cooling system related) been
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT POOR CONNECTION OF ECT Yes Repair or replace the terminal, then go to Step 9.
SENSOR CONNECTOR FOR POOR No Go to the next step.
CONNECTION
• Turn the ignition switch off.
• Disconnect ECT sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion.)
• Is there any malfunction?
4 CLASSIFY ECT SENSOR MALFUNCTION OR Yes Replace the ECT sensor, then go to Step 9.
WIRING HARNESS MALFUNCTION No Go to the next step.
• Connect the M-MDS to the DLC-2.
• Access the ECT PID.
• Connect a jumper wire between ECT sensor
terminals A and B.
• Verify the ECT value.
• Is the voltage 4.6 V or below?

01-02–67
1871-1U-06B(01-02).fm 68 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 INSPECT ECT SENSOR SIGNAL CIRCUIT FOR Yes Repair or replace the wiring harness for a short to power
SHORT TO POWER supply, then go to Step 9.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between ECT sensor
terminal A (wiring harness-side) and body
ground.
• Is the voltage B+?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion.)
• Is there any malfunction?
7 INSPECT ECT SENSOR SIGNAL CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Inspect the continuity between ECT sensor then go to Step 9.
terminal A (wiring harness-side) and PCM
terminal 2AH.
• Is there continuity?
8 INSPECT ECT SENSOR GROUND CIRCUIT Yes Go to the next step.
FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Inspect for continuity between ECT sensor then go to the next step.
terminal B (wiring harness-side) and PCM
terminal 2AY.
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P0118 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0122[L3 WITH TC]
id010239804200

DTC P0122 TP sensor No.1 circuit low input

• If the PCM detects that the TP sensor No.1 voltage is below 0.2 V after the ignition switch is turned to the
ON position, the PCM determines that TP circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• TP sensor malfunction
POSSIBLE • Connector or terminal malfunction
CAUSE • Short to ground between throttle body terminal A and PCM terminal 2AK
• Open circuit between throttle body terminal B and PCM terminal 2AO

01-02–68
1871-1U-06B(01-02).fm 69 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0122 TP sensor No.1 circuit low input
TP SENSOR NO.1
(THROTTLE BODY) PCM

4
3 5
B 2AO
01-02

3 6
A 2AK
7

D 2AP

THROTTLE BODY PCM

HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
D B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 CLASSIFY TP SENSOR OR HARNESS Yes Go to the next step.
MALFUNCTION No Go to step 5.
• Connect the M-MDS.
• Access the TP1 PID.
• Disconnect the throttle body connector.
• Connect a jumper wire between throttle body
terminals A and B (harness-side).
• Is the voltage above 4.9 V?
4 INSPECT TP SENSOR Yes Inspect for poor throttle body connector terminal B
• Perform the TP sensor inspection. connection. Repair or replace if necessary, then go to Step
(See01-40-32 THROTTLE POSITION (TP) 8.
SENSOR INSPECTION[L3 WITH TC].) No Replace throttle body, then go to Step 8.
• Is the TP sensor normal?

01-02–69
1871-1U-06B(01-02).fm 70 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 INSPECT POWER SUPPLY CIRCUIT VOLTAGE Yes Go to the next step.
AT THROTTLE BODY CONNECTOR No Repair or replace for an open circuit between throttle body
connector terminal B (harness-side) and PCM connector
Note terminal 2AO (harness-side).
• If DTC P0107 and P2228 are also retrieved Then, then go to Step 8.
with P0122, go to CONSTANT VOLTAGE
troubleshooting procedure.

• Turn ignition switch to the ON position (Engine

off).
• Measure the voltage at throttle body terminal B
(harness-side).
• Is the voltage within 4.5— 5.5 V?
6 VERIFY TP1 SIGNAL CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace the suspected harness, then go to Step
• Turn the ignition switch off. 8.
• Inspect for continuity between throttle body
terminal A (harness-side) and PCM terminal
2AK (harness-side).
• Is there continuity?
7 VERIFY TP1 SIGNAL CIRCUIT FOR SHORT TO Yes Repair or replace the suspected wiring harness, then go to
GROUND the next step.
• Inspect for continuity between throttle body No Go to the next step.
terminal A (harness-side) and body ground.
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0122 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0123[L3 WITH TC]
id010239804300

DTC P0123 TP sensor No.1 circuit high input

• If the PCM detects that the TP sensor No.1 voltage is above 4.9 V after ignition switch to the ON position,
PCM determines that TP circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• TP sensor malfunction
• Connector or terminal malfunction
POSSIBLE
• Open circuit between throttle body terminal B and PCM terminal 2AO
CAUSE
• Open circuit between throttle body terminal D and PCM terminal 2AP
• Short to the constant voltage supply circuit between throttle body terminal A and PCM terminal 2AK

01-02–70
1871-1U-06B(01-02).fm 71 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0123 TP sensor No.1 circuit high input

TP SENSOR NO.1
(THROTTLE BODY) PCM

5
3 4 6 8
B 2AO
01-02

3 4 9 8
A 2AK

3 4 7 8
D 2AP

THROTTLE BODY PCM

HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
D B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT THROTTLE BODY CONNECTOR Yes Go to the next step.
• Turn the ignition switch off. No Connect the connector securely, then go to Step 10.
• Verify that the throttle body connector is
connected securely.
• Is connector normal?
4 INSPECT THROTTLE BODY CONNECTION FOR Yes Repair or replace the suspected wiring terminal, then go to
POOR CONNECTION Step 10.
• Disconnect throttle body connector. No Go to the next step.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
5 INSPECT TP SENSOR Yes Go to the next step.
• Perform the TP sensor inspection. No Replace the throttle body, then go to Step 10.
(See01-40-32 THROTTLE POSITION (TP)
SENSOR INSPECTION[L3 WITH TC])
• Is the TP sensor normal?

01-02–71
1871-1U-06B(01-02).fm 72 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
6 INSPECT TP1 SIGNAL CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace for short to a power supply. Then, go to
• Turn ignition switch to the ON position (Engine Step 10.
off).
• Measure the voltage between throttle body
terminal B (harness-side) and body ground.
• Is the voltage above 4.9 V?
7 VERIFY TP SENSOR GROUND CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace for an open circuit between TP sensor
• Inspect for continuity between throttle body connector terminal B (harness-side) and PCM connector
connector terminal D (harness-side) and PCM terminal 3P (harness-side). Then, go to Step 10.
connector terminal 2AP.
• Is there continuity?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair terminal, then go to Step 10.
CONNECTION No Go to Step 10.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 VERIFY TP SIGNAL CIRCUIT FOR SHORT TO Yes Repair or replace the suspected wiring harness, then go to
CONSTANT VOLTAGE CIRCUIT the next step.
• Inspect for continuity between throttle body No Go to the next step.
terminals A and B (harness-side).
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P0123 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0125[L3 WITH TC]
id010239804400

DTC P0125 Excessive time to enter closed loop fuel control

• The PCM monitors the ECT sensor signal after the engine is started while the engine is cold. If the engine
coolant temperature does not reach the expected temperature for a specified period, the PCM determines
that it has taken an excessive amount of time for the engine coolant temperature to reach the temperature
necessary to start closed-loop fuel control.
Diagnostic support note
DETECTION • This is a continuous monitor (Engine cooling system).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• ECT sensor malfunction
POSSIBLE • Cooling system malfunction
CAUSE • Poor connection of connectors
• PCM malfunction

01-02–72
1871-1U-06B(01-02).fm 73 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Engine cooling system related) been 01-02
recorded?
2 VERIFY RELATED SERVICE INFORMATION Yes Perform the repair or diagnosis according to available
AVAILABILITY Service Information.
• Verify related Service Information availability. • If the vehicle is not repaired, go to the next step.
• Is any related Service Information available? No Go to the next step.
3 VERIFY CURRENT INPUT SIGNAL STATUS: IS Yes Intermittent concern exists. Go to the INTERMITTENT
CONCERN INTERMITTENT OR CONSTANT CONCERNS TROUBLESHOOTING procedure.
• Start the engine. (See01-03-76 INTERMITTENT CONCERN
• Warm up the engine completely. TROUBLESHOOTING[L3 WITH TC].)
• Access the ECT PID using the M-MDS. No Go to the next step.
• Is the ECT PID above 60 °C {140 °F}?
4 INSPECT ECT SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 7.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the ECT sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion.)
• Is there any malfunction?
5 INSPECT ECT SENSOR Yes Go to the next step.
• Inspect the ECT sensor. No Replace the ECT sensor, then go to Step 7.
(See01-40-25 ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
INSPECTION[L3 WITH TC].)
• Is it normal?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion.)
• Is there any malfunction?
7 VERIFY TROUBLESHOOTING OF DTC P0125 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch to the ON position
(Engine off).
• Access the ECT PID using the M-MDS.
• Wait until ECT PID below 8 °C {46 °F}.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–73
1871-1U-06B(01-02).fm 74 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0126, P0128[L3 WITH TC]
id010239815400

DTC P0126
Coolant thermostat stuck open
DTC P0128
DTC P0126
• If the ECT signal never exceeds 71 °C {160 °F} after engine start for specified period, PCM determines that
the coolant thermostat is stuck open.
MONITORING CONDITIONS
— IAT: above –10 °C {14 °F}
— Vehicle speed: over 9.4 km/h {5.8 mph}
DTC P0128
• PCM monitors MAF, IAT, VSS and EAT signals and calculate radiator heat radiation ratio while following
monitoring conditions are met. If calculated value exceeds threshold, PCM determines that the coolant
thermostat is stuck open.
DETECTION MONITORING CONDITIONS
CONDITION — ECT at engine start: below 36 °C {97 °F}
— IAT: above –10 °C {14 °F}
— Difference between ECT at engine start and minimum IAT: below 6 °C {10.8 °F}
— Vehicle speed: over 32 km/h {20 mph}
Diagnostic support note
• This is an intermittent monitor (Engine cooling system).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if PCM detects the above malfunction condition during first the drive cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.
• DIAGNOSTIC MONITORING TEST RESULTS is available.
• ECT sensor malfunction
POSSIBLE
• Coolant thermostat malfunction
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on repair order, then go to
• Have FREEZE FRAME DATA and the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Engine cooling system related) been
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FOR OTHER DTCS Yes Repair circuit malfunction for applicable DTCs.
• Have other DTCs been stored? No Go to the next step.
4 INSPECT COOLANT THERMOSTAT FOR Yes Inspect ECT sensor.
WHETHER STUCK OPEN Replace ECT sensor if necessary, then go to the next step.
• Perform coolant thermostat inspection. No Replace coolant thermostat, then go to the next step.
• Is coolant thermostat normal?

01-02–74
1871-1U-06B(01-02).fm 75 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 VERIFY MONITORING CONDITION FOR Yes Take corrective action (e.g. cool down engine), then repeat
REPAIR VERIFICATION this step.
• Make sure to reconnect all disconnected No Go to the next step for DTC P0126 or go to step 7 for DTC
connectors. P0128.
• Cool down engine.

Note 01-02
• If workshop inside and outside
temperature difference is significant,
PCM might not operate thermostat
monitor. Therefore, it is recommended to
cool down engine out of workshop.

• Turn ignition switch to ON (Engine off).

• Clear the DTC from the PCM memory using
the M-MDS.
• Access ECT, IAT PIDs and make sure that
each value is within following specifications.
— ECT: below 36 °C {97 °F} (for P0128 only)
— IAT: above –10°C {14°F}
— Difference between ECT and IAT: below
6°C {43°F}
• Is there any PID that is out of specification?
6 VERIFY TROUBLESHOOTING OF DTC P0126 Yes Go to Step 8.
COMPLETED No Replace PCM, then go to Step 8.
• Start engine and turn off E/L and A/C.
• Access DIAGNOSTIC MONITORING TEST
RESULTS using the M-MDS and monitor TEST
#10: E1: 81 (ECT).

Note
• This test requires actual driving. Chassis
roller cannot be used for this test.
• During test drive, constant speed should
be maintained, although 2 or 3 stops
during every5 minutes of driving time
(e.g. for traffic signals) is acceptable.
Stop-and-go (e.g. in case of traffic
congestion) is not acceptable during the
test period.
• Test period depends on ECT at engine
start. (e.g. if ECT is –10°C {14°F},
monitoring period is38 minutes and
ECT is 30 °C {86 °F}, monitoring period
is 8 minutes)

• Verify TEST #10: E1: 81 (ECT) value.

• Is value above minimum value?

01-02–75
1871-1U-06B(01-02).fm 76 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
7 VERIFY TROUBLESHOOTING OF DTC P0128 Yes Go to the next step.
COMPLETED No Replace PCM, then go to the next step.
• Start engine and turn off E/L and A/C.
• Access DIAGNOSTIC MONITORING TEST
RESULTS using the M-MDS and monitor TEST
#10: E1: 80 (Heat radiation ratio) or #10: E1: 81
(ECT).

Note
• This test requires actual driving. Chassis
roller cannot be used for this test.
• During test drive, constant speed should
be maintained, although 2 or 3 stops
(e.g. for traffic signals) is acceptable.
Stop-and-go (e.g. in case of traffic
congestion) is not acceptable during the
test period.

• Verify TEST #10: E1: 80 (Heat radiation ratio)

and #10: El: 81 (ECT) value.
• Are value of TEST #10: E1: 80 (Heat radiation
ratio) below maximum value and value of TEST
#10: E1: 81 (ECT) above minimum value?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. No Troubleshooting completed.
• Is any DTC present?

End Of Sie
DTC P0131[L3 WITH TC]
id010239804600

DTC P0131 Front HO2S circuit low input

• The PCM monitors the input voltage from the front HO2S when the engine is running. If the input voltage is
above 1.0 V for 25 s, the PCM determines that the front HO2S circuit voltage is low.
Diagnostic support note
• This is a continuance monitor (HO2S).
DETECTION • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
CONDITION in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S malfunction
• Connector or terminal malfunction
• Open circuit in the wiring harness between front HO2S terminal 1C and PCM terminal 2Z
POSSIBLE • Short to ground in the wiring harness between front HO2S terminal 1C and PCM terminal 2Z
CAUSE • Open circuit in the wiring harness between front HO2S terminal 1B and PCM terminal 2AC
• Short to ground in the wiring harness between front HO2S terminal 1B and PCM terminal 2AC
• Short to ground in the wiring harness between front HO2S terminal 1A and PCM terminal 2AD
• PCM malfunction

01-02–76
1871-1U-06B(01-02).fm 77 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0131 Front HO2S circuit low input
FRONT HO2S PCM

5 6 9 8
1C 2Z
01-02

5 6 9 8
7 1B 2AC

5 6 9 8
1A 2AD

FRONT HO2S PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

1C 1A 2C 2A 2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
1D 1B 2D 2B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING OR STORED DTC Yes Go to the appropriate DTC troubleshooting procedures.
• Turn the ignition switch off, then to the ON (See01-02-13 DTC TABLE[L3 WITH TC].)
position (Engine off). No Go to the next step.
• Verify the pending code or stored DTCs using
the M-MDS.
• Are other DTCs present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for the DTC on the
• Is DTC P0131 on FREEZE FRAME DATA? FREEZE FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)
5 INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 10.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the front HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?

01-02–77
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
6 INSPECT FRONT HO2S CIRCUIT FOR SHORT Yes Repair or replace the wiring harness for a possible short to
TO GROUND ground, then go to Step 10.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between the following
terminals and body ground:
— Front HO2S terminal 1A (wiring harness-
side) and body ground
— Front HO2S terminal 1B (wiring harness-
side) and body ground
— Front HO2S terminal 1C (wiring harness-
side) and body ground
• Is there continuity?
7 INSPECT FRONT HO2S Yes Replace the front HO2S, then go to Step 10.
• Inspect the front HO2S. (See01-15-2 EXHAUST SYSTEM REMOVAL/
(See01-40-37 HEATED OXYGEN SENSOR INSTALLATION[L3 WITH TC].)
(HO2S) INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 INSPECT FRONT HO2S CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Inspect for continuity between the following
circuits:
— Front HO2S terminal 1B (wiring harness-
side) and PCM terminal 2AC (wiring
harness-side)
— Front HO2S terminal 1C (wiring harness-
side) and PCM terminal 2Z (wiring harness-
side)
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P0131 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform HO2S heater, HO2S, and TWC Repair
Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–78
1871-1U-06B(01-02).fm 79 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0132[L3 WITH TC]
id010239804700

DTC P0132 Front HO2S circuit high input

• The PCM monitors the input voltage from the front HO2S when the engine is running. If the input voltage is
less than 1.0 V for 2 s, the PCM determines that the front HO2S circuit voltage is high.
Diagnostic support note
• This is a continuance monitor (HO2S).
DETECTION • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or 01-02
CONDITION in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
• Front HO2S malfunction
• Connector or terminal malfunction
POSSIBLE • Short to the power supply in the wiring harness between front HO2S terminal 1C and PCM terminal 2Z
CAUSE • Short to the power supply in the wiring harness between front HO2S terminal 1B and PCM terminal 2AC
• Short to the power supply in the wiring harness between front HO2S terminal 1A and PCM terminal 2AD
• PCM malfunction
FRONT HO2S PCM

5 6 8
1C 2Z

5 6 8
7 1B 2AC

5 6 8
1A 2AD

FRONT HO2S PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
1C 1A 2C 2A
1D 1B 2D 2B 2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–79
1871-1U-06B(01-02).fm 80 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 VERIFY RELATED PENDING OR STORED DTC Yes Go to the appropriate DTC troubleshooting procedures.
• Turn the ignition switch off, then to the ON (See01-02-13 DTC TABLE[L3 WITH TC].)
position (Engine off). No Go to the next step.
• Verify the pending code or stored DTCs using
the M-MDS.
• Are other DTCs present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for the DTC on the
• Is DTC P0132 on FREEZE FRAME DATA? FREEZE FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)
5 INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 9.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the front HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
6 INSPECT FRONT HO2S CIRCUIT FOR SHORT Yes Repair or replace the wiring harness for a possible short to
TO POWER SUPPLY the power supply, then go to Step 9.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between the following
terminals and body ground:
— Front HO2S terminal 1A (wiring harness-
side) and body ground
— Front HO2S terminal 1B (wiring harness-
side) and body ground
— Front HO2S terminal 1C (wiring harness-
side) and body ground
• Is the voltage B+?
7 INSPECT FRONT HO2S Yes Replace the front HO2S, then go to Step 9.
• Inspect the front HO2S. (See01-15-2 EXHAUST SYSTEM REMOVAL/
(See01-40-37 HEATED OXYGEN SENSOR INSTALLATION[L3 WITH TC].)
(HO2S) INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 VERIFY TROUBLESHOOTING OF DTC P0132 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–80
1871-1U-06B(01-02).fm 81 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0133[L3 WITH TC]
id010239804800

DTC P0133 Front HO2S circuit slow response

• An oxygen sensor malfunction can be detected by measuring the average frequency of the oxygen sensor
signal, time required to pass from rich to lean, and the time required to pass from lean to rich.
• The average frequency of the oxygen sensor signal is more than the threshold value.
MONITORING CONDITIONS
— HO2S heater, HO2S, and TWC Repair Verification Drive Mode 01-02
— The following conditions are met:
• Front HO2S heater monitor is completed.
• ECT sensor and front HO2S heater are normal
• Engine speed: 1,750— 3,500 rpm.
DETECTION • Charging efficiency: 35— 63% (at engine speed of 2,500 rpm)
CONDITION • Fuel system loop status is closed loop fuel control.
• Engine coolant temperature above 70 °C {158 °F}
Diagnostic support note
• This is an intermittent monitor (HO2S).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• DIAGNOSTIC MONITORING TEST RESULTS is available.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S deterioration
• Front HO2S malfunction
• Front HO2S looseness
• Fuel pressure sensor malfunction
• Clogged or restricted fuel line
POSSIBLE
• Fuel leakage in the fuel line between the fuel delivery pipe and the fuel pump
CAUSE
• Exhaust system leakage
• Purge solenoid valve malfunction
• Improper connection purge solenoid hose
• Insufficient compression
• Engine malfunction (Engine coolant leakage)

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING AND STORED Yes Go to DTC P0443 troubleshooting procedures, then go to
DTC Step 14.
• Turn the ignition switch off, then to the ON No Go to the next step.
position (Engine off).
• Verify the pending or stored DTCs using the M-
MDS.
• Is DTC P0443 also present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for DTC on FREEZE
• Is DTC P0133 on FREEZE FRAME DATA? FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)

01-02–81
1871-1U-06B(01-02).fm 82 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to Step 8.
• Warm up the engine. No Go to the next step.
• Access the O2S11 PID using the M-MDS.
• Inspect the PID under the following accelerator
pedal conditions in NEUTRAL.
• Is the PID normal?
— Less than 1mA when the accelerator pedal
is suddenly depressed (rich condition).
— More than 1mA just after accelerator pedal
is released (lean condition).
6 INSPECT INSTALLATION OF FRONT HO2S Yes Go to the next step.
• Inspect if the front HO2S is loosely installed. No Retighten the front HO2S, then go to Step 14.
• Is the front HO2S installed securely?
7 INSPECT GAS LEAKAGE FROM EXHAUST Yes Repair or replace the malfunctioning exhaust part, then go
SYSTEM to Step 14.
• Visually inspect if any gas leakage is found No Replace sensor, then go to Step 14.
between the exhaust manifold and front HO2S.
• Is there gas leakage?
8 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 13.
• Access and monitor the FUEL PRES PID. No Go to the next step.
• Is the FUEL PRES PID value within the
specification?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
9 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 11.
• Is the vehicle accelerate performance
normally?
10 INSPECT FUEL PRESSURE SENSOR Yes Go to the next step.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 14.
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
11 INSPECT HIGH PRESSURE FUEL PUMP Yes Retest Step 14.
• Replace the high pressure fuel pump. No Go to the next step.
• Monitor FUEL_PRES PID.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
12 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between fuel No Inspect for the following:
pump and high pressure fuel pump. • Fuel line restriction
• Measure the low side fuel pressure. • Fuel filter clogging
(See01-40-35 FUEL PRESSURE SENSOR If normal replace the fuel pump. Then go to Step 14.
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the
specification?
13 INSPECT SEALING OF ENGINE COOLANT Yes Go to the next step.
PASSAGE No Repair or replace the malfunctioning part according to the
• Perform the “ENGINE COOLANT LEAKAGE inspection results.
INSPECTION”. Then go to the next step.
(See01-12-6 ENGINE COOLANT LEAKAGE
INSPECTION[L3 WITH TC].)
• Is there any malfunction?

01-02–82
1871-1U-06B(01-02).fm 83 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
14 VERIFY TROUBLESHOOTING OF DTC P0133 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
(Engine off)
• Clear the DTC from the memory using the M- 01-02
MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
15 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0134[L3 WITH TC]
id010239804900

DTC P0134 Front HO2S no activity detected

• The PCM monitors the input voltage from the HO2S when the following conditions are met. If under the
following monitoring conditions, the input voltage more than 3.22 V, the PCM determines that the front
HO2S is not activated.
MONITORING CONDITIONS
— HO2S, HO2S heater and TWC Repair Verification Drive Mode
— The following conditions are met
• Front HO2S heater is tuned on for above 30 s
DETECTION
• Battery voltage: 10— 18 V
CONDITION
Diagnostic support note
• This is an intermittent monitor (HO2S).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S deterioration
• Front HO2S heater malfunction
• Leakage exhaust system
• Open or short circuit in the wiring harness between front HO2S terminal 2D and PCM terminal 2C
POSSIBLE
• Open or short circuit in the wiring harness between front HO2S terminal 1C and PCM terminal 2Z
CAUSE
• Open or short circuit in the wiring harness between front HO2S terminal 1B and PCM terminal 2AC
• Open or short circuit in the wiring harness between front HO2S terminal 1A and PCM terminal 2AD
• Insufficient compression
• Engine malfunction

01-02–83
1871-1U-06B(01-02).fm 84 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0134 Front HO2S no activity detected
PCM

FRONT HO2S
7
1C 2Z

7
1B 2AC

MAIN RELAY 7
1A 2AD

FRONT HO2S HEATER

7
2B 2D 2C

FRONT HO2S
PCM
WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

1C 1A 2C 2A 2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
1D 1B 2D 2B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING AND STORED Yes Go to the appropriate DTC troubleshooting procedures.
DTC No Go to the next step.

Note
• If fuel monitor, DTC P0132 is retrieved,
ignore it until P0134 is fixed.

• Turn the ignition switch off, then to the ON

position. (Engine off)
• Verify pending and stored DTCs using the M-
MDS.
• Is the DTC P2237 or P2251 also present?

01-02–84
1871-1U-06B(01-02).fm 85 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for the DTC on the
• Is DTC P0134 on the FREEZE FRAME DATA? FREEZE FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to Step 8.
• Warm up the engine. No Go to the next step.
• Access O2S11 PID using the M-MDS. 01-02
• Verify the PID while racing engine in
NEUTRAL.
• Is the PID normal?
— –1.0— 1.0 A when idle
— More than 0.25 mA just after releasing the
of accelerator pedal is released (lean
condition)
6 INSPECT INSTALLATION OF FRONT HO2S Yes Go to the next step.
• Inspect if the front HO2S is loosely installed. No Install the sensor securely, then go to Step 10.
• Is the sensor installed securely?
7 INSPECT EXHAUST SYSTEM FOR GAS Yes Repair or replace any malfunctioning exhaust part, then go
LEAKAGE to Step 10.
• Visually inspect if there is any gas leakage No • Inspect the following wiring harnesses at the wiring
between the exhaust manifold and front HO2S. harness-side connector terminals for an open circuit,
• Is there gas leakage? repair or the replace wiring harness if necessary.
— Front HO2S terminal 1A and PCM terminal 2AD
— Front HO2S terminal 1B and PCM terminal 2AC
— Front HO2S terminal 1C and PCM terminal 2Z
— Front HO2S terminal 2D and PCM terminal 2C
• If all the items above are normal, replace the
malfunctioning sensor.
Then go to Step 10.
8 INSPECT SEALING OF ENGINE COOLANT Yes Repair or replace the malfunctioning part according to the
PASSAGE inspection results, then go to Step 10.
• Perform the ENGINE COOLANT LEAKAGE No Go to the next step.
INSPECTION.
(See01-12-6 ENGINE COOLANT LEAKAGE
INSPECTION[L3 WITH TC].)
• Is there any malfunction?
9 INSPECT ENGINE COMPRESSION Yes Go to the next step.
• Inspect the engine compression. No Perform the engine overhaul for repairs, then go to the next
(See01-10-9 COMPRESSION step.
INSPECTION[L3 WITH TC].)
• Is it normal?
10 VERIFY TROUBLESHOOTING OF DTC P0134 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
(Engine off)
• Clear the DTC from the memory using the M-
MDS.
• Perform the PCM Adaptive Memory Produce
Drive Mode and the HO2S heater, HO2S, and
TWC Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–85
1871-1U-06B(01-02).fm 86 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0137[L3 WITH TC]
id010239805000

DTC P0137 Rear HO2S circuit low input

• The PCM monitors the input voltage from the rear HO2S. If the input voltage from the rear HO2S sensor
is below 0.1 V for 41.6 s, the PCM determines that the circuit input is low.
MONITORING CONDITIONS
— HO2S,HO2S heater and TWC repair verification drive mode.
— The following conditions are met.
• Engine speed is above 1,500 rpm.
• Engine coolant temperature is above 70 °C {158 °F}.
• Fuel injector control in rear HO2S is in closed loop control.
• The PCM monitors the input voltage from the rear HO2S when the following conditions are met. Under
the following monitoring conditions, if the input voltage from the rear HO2S does not exceed 0.1 V
through the short term fuel trim is controlled up to 20.5% for 9.6 s, the PCM determines that the sensor
DETECTION circuit input is low.
CONDITION MONITORING CONDITIONS
— HO2S,HO2S heater and TWC repair verification drive mode.
— The following conditions are met for more than 20.8 s.
• Engine speed is more than 1,500 rpm.
• Engine coolant temperature is more than 70 °C {158 °F}.
Diagnostic support note
• This is an intermittent monitor (HO2S).
• The MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive
cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if PCM detects the above malfunction conditions during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Rear HO2S malfunction
POSSIBLE
• Open circuit or short to ground in wiring between rear HO2S terminal A and PCM terminal 2Q
CAUSE
• PCM malfunction
REAR HO2S PCM

5 6
A 2Q

B 1BC

REAR HO2S
PCM
WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

A C 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
B D
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–86
1871-1U-06B(01-02).fm 87 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded? 01-02
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. If the vehicle is not repaired, go to the
• Verify related Service Bulletins and/or on-line next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to appropriate DTC troubleshooting procedure.
STORED DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch off, then to the ON No Go to the next step.
position (Engine off).
• Verify the related PENDING CODE or stored
DTCs using the M-MDS.
• Are other DTCs present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to the troubleshooting for the DTC on the FREEZE
• Is DTC P0137 on FREEZE FRAME DATA? FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)
5 INSPECT REAR HO2S SIGNAL CIRCUIT FOR Yes Repair for a short to ground circuit, then go to Step 7.
SHORT TO GROUND AT HARNESS No Go to the next step.
• Turn the ignition switch off.
• Disconnect rear HO2S and PCM connectors.
• Verify the continuity between rear HO2S
sensor terminal A (wiring harness side) and
body ground.
• Is there continuity?
6 INSPECT REAR HO2S SIGNAL CIRCUIT FOR Yes Replace the rear HO2S then go to the next step.
SHORT TO GROUND AT REAR HO2S No Go to the next step.
• Rear HO2S connector disconnected.
• Verify the continuity between rear HO2S
sensor terminal A (part side) and body ground.
• Is there continuity?
7 VERIFY TROUBLESHOOTING OF DTC P0137 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the AFTER REPAIR PROCEDURE. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–87
1871-1U-06B(01-02).fm 88 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0138[L3 WITH TC]
id010239805100

DTC P0138 Rear HO2S circuit high input

• The PCM monitors the input voltage from the rear HO2S. If the input voltage from the rear HO2S sensor is
above 1.2 V for 0.8 s, the PCM determines that the circuit input is high.
Diagnostic support note
DETECTION • This is an intermittent monitor (HO2S).
CONDITION • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Rear HO2S malfunction
POSSIBLE • Short to power supply in the wiring harness between rear HO2S terminal A and PCM terminal 2Q
CAUSE • Rear HO2S or PCM terminal shorted
• PCM malfunction
REAR HO2S PCM

5
A 2Q

B 1BC

REAR HO2S
PCM
WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

A C 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
B D
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–88
1871-1U-06B(01-02).fm 89 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded? 01-02
2 VERIFY RELATED SERVICE INFORMATION Yes Perform the repair or diagnosis according to available
AVAILABILITY Service Information.
• Verify related service bulletins and/or repair • If vehicle is not repaired, go to the next step.
Information availability. No Go to the next step.
• Is any related Service Information available?
3 VERIFY RELATED PENDING OR STORED DTC Yes Go to the appropriate DTC troubleshooting procedures.
• Turn the ignition switch off, then to the ON (See01-02-13 DTC TABLE[L3 WITH TC].)
position. (Engine off) No Go to the next step.
• Verify pending code or stored DTCs using M-
MDS.
• Is other DTC present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to the troubleshooting procedures for the DTC on the
• Is DTC P0138 on FREEZE FRAME DATA? FREEZE FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)
5 INSPECT REAR HO2S SIGNAL CIRCUIT FOR Yes Replace short to power supply, then go to Step 7.
SHORT TO POWER SUPPLY No Go to the next step.
• Turn the ignition switch off.
• Disconnect rear HO2S connector.
• Turn the ignition switch to the ON position.
(Engine off)
• Measure the voltage between rear HO2S
terminal A (wiring harness-side) and body
ground.
• Is there any voltage?
6 VERIFY CURRENT INPUT SIGNAL STATUS Yes Replace the sensor, then go to the next step.
• Start the engine. (See01-15-2 EXHAUST SYSTEM REMOVAL/
• Access the O2S12 PID using the M-MDS. INSTALLATION[L3 WITH TC].)
• Verify the PID while racing the engine at least No Go to the next step.
10 times in NEUTRAL.
• Does the PID stay above 0.55 V?
7 VERIFY TROUBLESHOOTING OF DTC P0138 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
(Engine off)
• Clear the DTC from the memory using the M-
MDS.
• Run the PCM adaptive memory procedure
drive mode and HO2S heater, HO2S, and TWC
repair verification drive mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–89
1871-1U-06B(01-02).fm 90 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0139[L3 WITH TC]
id010239805200

DTC P0139 Rear HO2S circuit problem

• The PCM monitors the rich (0.4 V) to lean (0.3 V) response time of the rear HO2S. The PCM measures the
response time when the following conditions are met. The PCM determines that the rear HO2S response
deteriorated when the measured response time is more than the threshold value (130 ms) five consecutive
times.
MONITORING CONDITIONS
— HO2S heater, HO2S, and TWC Repair Verification Drive Mode or EGR, HO2S heater, HO2S, TWC, and
EVAP System Repair Verification Drive Mode
— The following conditions are met:
• Fuel cut during deceleration
• Engine speed is more than 500 rpm.
• Engine coolant temperature is more than 70 °C {158 °F}.
• HO2S (rear) output voltage is more than 0.4 V.
• The PCM monitors for a time-out malfunction (when rear HO2S remains above 0.3 V for longer than a
specified period of time during fuel cut control). The PCM measure the amount of time from when the
following conditions are met until the rear HO2S output voltage drops below 0.3 V. The PCM determines
that a HO2S time-out malfunction has occurred when the detected time is more than the threshold value
DETECTION (6.4 s) three consecutive times.
CONDITION
MONITORING CONDITIONS
— HO2S heater, HO2S, and TWC Repair Verification Drive Mode or EGR, HO2S heater, HO2S, TWC, and
EVAP System Repair Verification Drive Mode
— The following conditions are met:
• Fuel cut during deceleration
• Engine speed is more than 500 rpm.
• Engine coolant temperature is more than 70 °C {158 °F}.
• HO2S (rear) is activated (more than 0.55 V).
Diagnostic support note
• This is an intermittent monitor (HO2S).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• DIAGNOSTIC MONITORING TEST RESULTS is available.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Rear HO2S deterioration
• Rear HO2S malfunction
• Rear HO2S looseness
• Pressure regulator (built-in fuel pump unit) malfunction
• Fuel pump malfunction
POSSIBLE • Fuel filter (built-in fuel pump unit) clogged or restricted
CAUSE • Fuel leakage on fuel line from fuel delivery pipe to fuel pump
• Exhaust system leakage
• Purge solenoid valve malfunction
• Improper connection of purge solenoid hoses
• Insufficient compression
• Engine malfunction (Leakage engine coolant)

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY Service Information.
• Verify related Service Bulletins and/or-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–90
1871-1U-06B(01-02).fm 91 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 VERIFY RELATED PENDING AND STORED Yes Go to DTC P0443 troubleshooting procedures, then go to
DTC Step 13.
• Turn the ignition switch off, then to the ON No Go to the next step.
position (Engine off).
• Verify pending and/or stored DTCs using the
M-MDS.
• Is DTC P0443 also present? 01-02
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for the DTC on the
• Is DTC P0139 on the FREEZE FRAME DATA? FREEZE FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to Step 8.
• Warm up the engine. No Go to the next step.
• Access the O2S12 PID using the M-MDS.
• Inspect the PID under the following accelerator
pedal conditions or NEUTRAL.
• Is the PID normal?
— More than 0.55 V the accelerator pedal is
suddenly depressed (rich condition).
— Less than 0.55 V just after accelerator
pedal is released (lean condition).
6 INSPECT INSTALLATION OF REAR HO2S Yes Go to the next step.
• Inspect if the rear HO2S is loosely installed. No Retighten the sensor, then go to Step 13.
• Is the sensor installed securely?
7 INSPECT GAS LEAKAGE FROM EXHAUST Yes Repair or replace the malfunctioning faulty exhaust part,
SYSTEM then go to Step 13.
• Visually inspect if there is any gas leakage No Replace sensor, then go to Step 13.
between the exhaust manifold and the rear
HO2S.
• Is there gas leakage?
8 INSPECT LONG TERM FUEL TRIM Yes The engine is driven under a rich condition. Go to the next
• Access the LONGFT1 PIDs step.
• Compare it with the FREEZE FRAME DATA No The engine is driven under a lean condition. Go to Step 10.
recorded at Step 1.
• Is it below the FFD value?
9 INSPECT FUEL LINE PRESSURE (Excessive Yes Go to Step 12.
fuel line pressure) No Inspect fuel pump maximum pressure and fuel return pipe
• Turn the ignition switch off. for clogging.
• Inspect the fuel line pressure while the engine (See01-14-13 FUEL PUMP UNIT INSPECTION[L3 WITH
is running. TC].)
(See01-14-5 FUEL LINE PRESSURE • If there is any problem, repair or replace the parts.
INSPECTION[L3 WITH TC].) • If all items above are normal, replace the fuel pump
• Is the fuel line pressure normal? unit.
Then go to Step 13.
10 INSPECT FUEL LINE PRESSURE (Low fuel line Yes Go to Step 12.
pressure) No Go to the next step.
• Turn the ignition switch off.
• Inspect the fuel line pressure while the engine
is running.
(See01-14-5 FUEL LINE PRESSURE
INSPECTION[L3 WITH TC].)
• Is the fuel line pressure normal?
11 INSPECT FUEL LINE FROM FUEL PUMP TO Yes Replace the fuel line, then go to Step 13.
FUEL DELIVERY PIPE No Inspect the fuel filters for the following:
• Visually inspect the fuel line for any leakage. • Foreign material or staining inside the fuel filter (low-
• Is there fuel leakage? pressure side)
Perform the following actions according to the result.
• If foreign material or staining is found inside fuel filter
(low-pressure side), clean the fuel tank and filter.
• If normal, replace fuel pump unit.
Then go to Step 13.

01-02–91
1871-1U-06B(01-02).fm 92 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
12 INSPECT SEALING OF ENGINE COOLANT Yes Go to the next step.
PASSAGE No Repair or replace the malfunctioning part according to
• Perform the “ENGINE COOLANT LEAKAGE inspection results.
INSPECTION.” Then go to the next step.
(See01-12-6 ENGINE COOLANT LEAKAGE
INSPECTION[L3 WITH TC].)
• Is there any malfunction?
13 VERIFY TROUBLESHOOTING OF DTC P0139 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
(Engine off)
• Clear the DTC from the memory using the M-
MDS.
• Perform the “PCM Adaptive Memory Produce
Drive Mode” and “HO2S heater, HO2S, and
TWC Repair Verification Drive Mode”.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
14 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0140[L3 WITH TC]
id010239805300

DTC P0140 Rear HO2S no activity detected

• The PCM monitors the input voltage from the rear HO2S when the following conditions are met. Under the
following monitoring conditions, if the input voltage from the rear HO2S does not even exceed 0.55 V
though the short term fuel trim is controlled up to 20.5% for 9.6 s, the PCM determines that sensor circuit is
not activated.
MONITORING CONDITIONS
— HO2S, HO2S heater and TWC repair verification drive mode
— The following conditions are met for above 20.8 s.
• Engine speed is above 1,500 rpm.
DETECTION
• Engine coolant temperature is above 70 °C {158 °F}.
CONDITION
• Rear HO2S voltage is above0.1V.
Diagnostic support note
• This is an intermittent monitor (HO2S).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Rear HO2S deterioration
• Rear HO2S heater malfunction
POSSIBLE • Exhaust system leakage
CAUSE • Open circuit or short to ground in the wiring harness between rear HO2S terminal A and PCM terminal 2Q
• Insufficient compression
• Engine malfunction

01-02–92
1871-1U-06B(01-02).fm 93 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0140 Rear HO2S no activity detected
REAR HO2S PCM

7
A 2Q
01-02

B 1BC

REAR HO2S
PCM
WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

A C 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
B D
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING AND STORED Yes Go to the appropriate DTC troubleshooting procedures.
DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
No Go to the next step.
Note
• If the fuel monitor, DTC P0132 is retrieved,
ignore it until P0140 is fixed.

• Turn the ignition switch off, then to the ON

position. (Engine off)
• Verify pending and stored DTCs using the M-
MDS.
• Are other DTCs present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for the DTC on the
• Is DTC P0140 on the FREEZE FRAME DATA? FREEZE FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)

01-02–93
1871-1U-06B(01-02).fm 94 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to Step 8.
• Warm up the engine. No Go to the next step.
• Access the O2S12 or the P0140 PID using the
M-MDS.
• Verify the PID while racing the engine at least
10 times in NEUTRAL.
• Is the PID reading normal?
— More than 0.55 V at least once during
engine racing
6 INSPECT INSTALLATION OF REAR HO2S Yes Go to the next step.
• Check if the rear HO2S is loosely installed. No Install the sensor securely, then go to Step 10.
• Is the sensor installed securely?
7 INSPECT GAS LEAKAGE FROM EXHAUST Yes Repair or replace any malfunctioning exhaust part, then go
SYSTEM to Step 10.
• Visually check if any gas leakage is found No • Inspect the following wiring harness for an open or short
between the exhaust pipe and the rear HO2S. to the ground circuit, repair or replace the wiring
• Is there gas leakage? harness if necessary.
— Rear HO2S terminal A (wiring harness-side) to PCM
terminal 2Q (wiring harness-side)
• Repair or replace the wiring harness if necessary.
• If all items above are normal, replace the malfunctioning
sensor.
Then go to Step 10.
8 INSPECT SEALING OF ENGINE COOLANT Yes Repair or the replace the malfunctioning part according to
PASSAGE the inspection result.
• Perform the ENGINE COOLANT LEAKAGE Then go to Step 10.
INSPECTION. No Go to the next step.
(See01-12-6 ENGINE COOLANT LEAKAGE
INSPECTION[L3 WITH TC].)
• Is the cooling system hold pressure normal?
9 INSPECT ENGINE COMPRESSION Yes Go to the next step.
• Inspect the engine compression. No Perform engine overhaul for repairs, then go to the next
(See01-10-9 COMPRESSION step.
INSPECTION[L3 WITH TC].)
• Is it normal?
10 VERIFY TROUBLESHOOTING OF DTC P0140 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
(Engine off)
• Clear the DTC from the memory using the M-
MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–94
1871-1U-06B(01-02).fm 95 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0192[L3 WITH TC]
id010239805400

DTC P0192 Fuel pressure sensor circuit low input

• If the input voltage from the fuel pressure sensor is less than 0.19 V for 1.3 s, the PCM determines that the
fuel pressure sensor circuit is low.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle. 01-02
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Fuel pressure sensor malfunction
POSSIBLE • Short to ground in wiring harness between fuel pressure sensor terminal B and PCM terminal 2R
CAUSE • Connector or terminal malfunction
• PCM malfunction
PCM
FUEL PRESSURE SENSOR

3 6
C 2I

5 3 4 6
B 2R

3 6
A 2P

FUEL PRESSURE SENSOR PCM

WIRING HARNESS-SIDE CONNECTOR HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
C B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related service repair information • If the vehicle is not repaired, go to the next step.
availability. No Go to the next step.
• Is any related repair information available?

01-02–95
1871-1U-06B(01-02).fm 96 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT FUEL PRESSURE SENSOR Yes Repair or replace the terminal, then go to Step 7.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the fuel pressure sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT FUEL PRESSURE SENSOR SIGNAL Yes Repair or replace the wiring harness for a possible short to
CIRCUIT FOR SHORT TO GROUND ground, then go to Step 7.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between the fuel pressure
sensor terminal B (wiring harness-side) and
body ground.
• Is there continuity?
5 INSPECT FUEL PRESSURE SENSOR Yes Replace the fuel pressure sensor, then go to Step 7.
• Inspect the fuel pressure sensor. (See01-40-35 FUEL PRESSURE SENSOR REMOVAL/
(See01-40-35 FUEL PRESSURE SENSOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 VERIFY TROUBLESHOOTING OF DTC P0192 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all the disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0193[L3 WITH TC]
id010239805500

DTC P0193 Fuel pressure sensor circuit high input

• If the input voltage from the fuel pressure sensor is more than 4.8 V for 1.3 s, the PCM determines that the
fuel pressure sensor circuit is high.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Fuel pressure sensor malfunction
• Open circuit in the wiring harness between fuel pressure sensor terminal A and PCM terminal 2P
POSSIBLE
• Short to power in the wiring harness between fuel pressure sensor terminal B and PCM terminal 2R
CAUSE
• Connector or terminal malfunction
• PCM malfunction

01-02–96
1871-1U-06B(01-02).fm 97 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0193 Fuel pressure sensor circuit high input
PCM
FUEL PRESSURE SENSOR

3 6
C 2I

01-02

5 3 4 6
B 2R

3 7 6
A 2P

FUEL PRESSURE SENSOR PCM

WIRING HARNESS-SIDE CONNECTOR HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
C B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related service repair information • If the vehicle is not repaired, go to the next step.
availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FUEL PRESSURE SENSOR Yes Repair or replace the terminal, then go to Step 8.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the fuel pressure sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT FUEL PRESSURE SENSOR SIGNAL Yes Repair or replace the wiring harness for a possible short to
CIRCUIT FOR SHORT TO POWER SUPPLY power supply, then go to the Step 8.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between the fuel pressure
sensor terminal B (wiring harness-side) and
body ground.
• Is the voltage B+?
5 INSPECT FUEL PRESSURE SENSOR Yes Replace the fuel pressure sensor, then go to Step 8.
• Inspect the fuel pressure sensor. (See01-40-35 FUEL PRESSURE SENSOR REMOVAL/
(See01-40-35 FUEL PRESSURE SENSOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?

01-02–97
1871-1U-06B(01-02).fm 98 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 8.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 INSPECT FUEL PRESSURE SENSOR CIRCUIT Yes Go to the next step.
FOR OPEN CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Inspect for continuity between the fuel pressure
sensor terminal A (wiring harness-side) and
PCM terminal 2P (wiring harness-side).
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0193 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all the disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0201[L3 WITH TC]
WM: DTC P02XX

id010239805600

DTC P0201 Injector circuit/open cylinder No.1

• If the fuel injection verification signal is not input at 255 times continuously even though the PCM drives the
fuel injector No.1, the PCM determines that there is an open circuit in the fuel injector No.1 control circuit.
MONITORING CONDITION
— The following conditions are met:
• Engine speed: 4,000 rpm or less
DETECTION • Battery voltage: 10.03 V or more
CONDITION • Fuel injection control: except during fuel cut
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Fuel injector No.1 malfunction
• Connector or terminal malfunction
• Open circuit between fuel injector No.1 terminal B and PCM terminal 2BG
POSSIBLE • Open circuit between fuel injector No.1 terminal A and PCM terminal 2BB
CAUSE • Short to power supply between fuel injector No.1 terminal A and PCM terminal 2BB
• Short to ground between fuel injector No.1 terminal B and PCM terminal 2BG
• Short to ground between fuel injector No.1 terminal A and PCM terminal 2BB
• PCM malfunction

01-02–98
1871-1U-06B(01-02).fm 99 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0201 Injector circuit/open cylinder No.1

PCM

FUEL INJECTOR NO.1

3 4 9 8
B 2BG 01-02

6 7

3 4 5 9 8
A 2BB

FUEL INJECTOR NO.1 PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FUEL INJECTOR NO.1 CONNECTOR Yes Repair or replace the terminal, then go to Step 10.
FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the fuel injector No.1 connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT FUEL INJECTOR NO.1 CIRCUIT FOR Yes Repair or replace the wiring harness for a possible short to
SHORT TO GROUND ground, then go to Step 10.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between the following
terminals:
— Fuel injector No.1 terminal B (wiring
harness-side) and body ground
— Fuel injector No.1 terminal A (wiring
harness-side) and body ground
• Is there continuity?

01-02–99
1871-1U-06B(01-02).fm 100 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 INSPECT FUEL INJECTOR NO.1 CIRCUIT FOR Yes Repair or replace the wiring harness for a possible short to
SHORT TO POWER SUPPLY power supply, then go to Step 10.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between the fuel injector
No.1 terminal A (wiring harness-side) and body
ground.
• Is the voltage B+?
6 INSPECT FUEL INJECTOR NO.1 Yes Replace fuel injector No.1, then go to Step 10.
• Inspect the fuel injector No.1. (See01-14-23 FUEL INJECTOR REMOVAL/
(See01-14-27 FUEL INJECTOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
7 INSPECT PCM Yes Replace the PCM, then go to Step 10.
• Inspect the PCM. No Go to the next step.
• Is there malfunction?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 INSPECT FUEL INJECTOR NO.1 CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Inspect for continuity between the following
terminals:
— Fuel injector No.1 terminal B (wiring
harness-side) and PCM terminal 2BG
(wiring harness-side)
— Fuel injector No.1 terminal A (wiring
harness-side) and PCM terminal 2BB
(wiring harness-side)
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P0201 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–100
1871-1U-06B(01-02).fm 101 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0202[L3 WITH TC]
id010239805700

DTC P0202 Injector circuit/open cylinder No.2

• If the fuel injection verification signal is not input at 255 times continuously even though the PCM drives the
fuel injector No.2, the PCM determines that there is an open circuit in the fuel injector No.2 control circuit.
MONITORING CONDITION
— The following conditions are met:
• Engine speed: 4,000 rpm or less 01-02
DETECTION • Battery voltage: 10.03 V or more
CONDITION • Fuel injection control: except during fuel cut
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Fuel injector No.2 malfunction
• Connector or terminal malfunction
• Open circuit between fuel injector No.2 terminal B and PCM terminal 2BH
POSSIBLE • Open circuit between fuel injector No.2 terminal A and PCM terminal 2BC
CAUSE • Short to power supply between fuel injector No.2 terminal A and PCM terminal 2BC
• Short to ground between fuel injector No.2 terminal B and PCM terminal 2BH
• Short to ground between fuel injector No.2 terminal A and PCM terminal 2BC
• PCM malfunction
PCM

FUEL INJECTOR NO.2

3 4 9 8
B 2BH

6 7

3 4 5 9 8
A 2BC

FUEL INJECTOR NO.2 PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–101
1871-1U-06B(01-02).fm 102 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT FUEL INJECTOR NO.2 CONNECTOR Yes Repair or replace the terminal, then go to Step 10.
FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the fuel injector No.2 connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT FUEL INJECTOR NO.2 CIRCUIT FOR Yes Repair or replace the wiring harness for a possible short to
SHORT TO GROUND ground, then go to Step 10.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between the following
terminals:
— Fuel injector No.2 terminal B (wiring
harness-side) and body ground
— Fuel injector No.2 terminal A (wiring
harness-side) and body ground
• Is there continuity?
5 INSPECT FUEL INJECTOR NO.2 CIRCUIT FOR Yes Repair or replace the wiring harness for a possible short to
SHORT TO POWER SUPPLY power supply, then go to Step 10.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between the fuel injector
No.2 terminal A (wiring harness-side) and body
ground.
• Is the voltage B+?
6 INSPECT FUEL INJECTOR NO.2 Yes Replace the fuel injector No.2, then go to Step 10.
• Inspect the fuel injector No.2. (See01-14-23 FUEL INJECTOR REMOVAL/
(See01-14-27 FUEL INJECTOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
7 INSPECT PCM Yes Replace the PCM, then go to Step 10.
• Inspect the PCM. No Go to the next step.
• Is there malfunction?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 INSPECT FUEL INJECTOR NO.2 CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Inspect for continuity between the following
terminals:
— Fuel injector No.2 terminal B (wiring
harness-side) and PCM terminal 2BH
(wiring harness-side)
— Fuel injector No.2 terminal A (wiring
harness-side) and PCM terminal 2BC
(wiring harness-side)
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P0202 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–102
1871-1U-06B(01-02).fm 103 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0203[L3 WITH TC]
id010239805800

DTC P0203 Injector circuit/open cylinder No.3

• If the fuel injection verification signal is not input at 255 times continuously even though the PCM drives
fuel injector No.3, the PCM determines that there is an open circuit in the fuel injector No.3 control circuit.
MONITORING CONDITION
— The following conditions are met:
• Engine speed: 4,000 rpm or less
DETECTION • Battery voltage: 10.03 V or more 01-02
CONDITION • Fuel injection control: except during fuel cut
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Fuel injector No.3 malfunction
• Connector or terminal malfunction
• Open circuit between fuel injector No.3 terminal B and PCM terminal 2BH
POSSIBLE • Open circuit between fuel injector No.3 terminal A and PCM terminal 2BD
CAUSE • Short to power supply between fuel injector No.3 terminal A and PCM terminal 2BD
• Short to ground between fuel injector No.3 terminal B and PCM terminal 2BH
• Short to ground between fuel injector No.3 terminal A and PCM terminal 2BD
• PCM malfunction
PCM

FUEL INJECTOR NO.3

3 4 9 8
B 2BH

6 7

3 4 5 9 8
A 2BD

FUEL INJECTOR NO.3 PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–103
1871-1U-06B(01-02).fm 104 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT FUEL INJECTOR NO.3 CONNECTOR Yes Repair or replace the terminal, then go to Step 10.
FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the fuel injector No.3 connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT FUEL INJECTOR NO.3 CIRCUIT FOR Yes Repair or replace the wiring harness for a possible short to
SHORT TO GROUND ground, then go to Step 10.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between the following
terminals:
— Fuel injector No.3 terminal B (wiring
harness-side) and body ground
— Fuel injector No.3 terminal A (wiring
harness-side) and body ground
• Is there continuity?
5 INSPECT FUEL INJECTOR NO.3 CIRCUIT FOR Yes Repair or replace the wiring harness for a possible short to
SHORT TO POWER SUPPLY power supply, then go to Step 10.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between the fuel injector
No.3 terminal A (wiring harness-side) and body
ground.
• Is the voltage B+?
6 INSPECT FUEL INJECTOR NO.3 Yes Replace fuel injector No.3, then go to Step 10.
• Inspect fuel injector No.3. (See01-14-23 FUEL INJECTOR REMOVAL/
(See01-14-27 FUEL INJECTOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
7 INSPECT PCM Yes Replace the PCM, then go to Step 10.
• Inspect the PCM. No Go to the next step.
• Is there malfunction?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 INSPECT FUEL INJECTOR NO.3 CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Inspect for continuity between the following
terminals:
— Fuel injector No.3 terminal B (wiring
harness-side) and PCM terminal 2BH
(wiring harness-side)
— Fuel injector No.3 terminal A (wiring
harness-side) and PCM terminal 2BD
(wiring harness-side)
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P0203 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
End Of Sie

01-02–104
1871-1U-06B(01-02).fm 105 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0204[L3 WITH TC]
id010239805900

DTC P0204 Injector circuit/open cylinder No.4

• If the fuel injection verification signal is not input at 255 times continuously even though the PCM drives
fuel injector No.4, the PCM determines that there is an open circuit in the fuel injector No.4 control circuit.
MONITORING CONDITION
— The following conditions are met:
• Engine speed: 4,000 rpm or less 01-02
DETECTION • Battery voltage: 10.03 V or more
CONDITION • Fuel injection control: except during fuel cut
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Fuel injector No.4 malfunction
• Connector or terminal malfunction
• Open circuit between fuel injector No.4 terminal B and PCM terminal 2BG
POSSIBLE • Open circuit between fuel injector No.4 terminal A and PCM terminal 2AZ
CAUSE • Short to power supply between fuel injector No.4 terminal A and PCM terminal 2AZ
• Short to ground between fuel injector No.4 terminal B and PCM terminal 2BG
• Short to ground between fuel injector No.4 terminal A and PCM terminal 2AZ
• PCM malfunction
PCM

FUEL INJECTOR NO.4

3 4 9 8
B 2BG

6 7

3 4 5 9 8
A 2AZ

FUEL INJECTOR NO.4 PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–105
1871-1U-06B(01-02).fm 106 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT FUEL INJECTOR NO.4 CONNECTOR Yes Repair or replace the terminal, then go to Step 10.
FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the fuel injector No.4 connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT FUEL INJECTOR NO.4 CIRCUIT FOR Yes Repair or replace the wiring harness for a possible short to
SHORT TO GROUND ground, then go to Step 10.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between the following
terminals:
— Fuel injector No.4 terminal B (wiring
harness-side) and body ground
— Fuel injector No.4 terminal A (wiring
harness-side) and body ground
• Is there continuity?
5 INSPECT FUEL INJECTOR NO.4 CIRCUIT FOR Yes Repair or replace the wiring harness for a possible short to
SHORT TO POWER SUPPLY power supply, then go to Step 10.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between the fuel injector
No.4 terminal A (wiring harness-side) and body
ground.
• Is the voltage B+?
6 INSPECT FUEL INJECTOR NO.4 Yes Replace fuel injector No.4, then go to Step 10.
• Inspect fuel injector No.4. (See01-14-23 FUEL INJECTOR REMOVAL/
(See01-14-27 FUEL INJECTOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
7 INSPECT PCM Yes Replace the PCM, then go to Step 10.
• Inspect the PCM. No Go to the next step.
• Is there any malfunction?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 INSPECT FUEL INJECTOR NO.4 CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the wiring harness for a possible open
• Turn the ignition switch off. circuit, then go to the next step.
• Inspect for continuity between the following
terminals:
— Fuel injector No.4 terminal B (wiring
harness-side) and PCM terminal 2BG
(wiring harness-side)
— Fuel injector No.4 terminal A (wiring
harness-side) and PCM terminal 2AZ
(wiring harness-side)
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P0204 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
End Of Sie

01-02–106
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0222[L3 WITH TC]
id010239806000

DTC P0222 TP sensor No.2 circuit low input

• If PCM detects that the TP sensor No.2 voltage is below 0.2 V after the ignition switch to the ON position,
the PCM determines that TP circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle. 01-02
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• TP sensor malfunction
• Connector or terminal malfunction
• Open circuit between throttle body terminal C and PCM terminal 2AL
POSSIBLE
• Short to ground between throttle body terminal C and PCM terminal 2AL
CAUSE
• Open circuit between throttle body terminal B and PCM terminal 2AO
• Short to ground between throttle body terminal B and PCM terminal 2AO
• PCM malfunction

TP SENSOR NO.2
(THROTTLE BODY) PCM

4
3 5
B 2AO

3 6
C 2AL
7

3
D 2AP

THROTTLE BODY PCM

HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

D C B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on repair order, then go to
• Has the FREEZE FRAME DATA been the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–107
1871-1U-06B(01-02).fm 108 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT TP SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 8.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the TP sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
3 CLASSIFY TP SENSOR OR HARNESS Yes Go to the next step.
MALFUNCTION No Go to step 5.
• Connect the M-MDS.
• Access the TP2 PID.
• Disconnect the throttle body connector.
• Connect a jumper wire between throttle body
terminals B and C (harness-side).
• Is the voltageabove 4.9 V?
4 INSPECT TP SENSOR Yes Inspect throttle body connector terminal B connection for
• Perform the TP sensor inspection. poor connection. Repair or replace if necessary, then go to
(See01-40-32 THROTTLE POSITION (TP) Step 8.
SENSOR INSPECTION[L3 WITH TC].) No Replace throttle body, then go to Step 8.
• Is the TP sensor normal?
5 INSPECT POWER SUPPLY CIRCUIT VOLTAGE Yes Go to the next step.
AT THROTTLE BODY CONNECTOR No Repair or replace for an open circuit between throttle body
connector terminal B and PCM connector terminal 2AO
Note (harness-side).
• If DTC P0107 and P2228 are also retrieved Then, then go to Step 8.
with P0122, go to the CONSTANT
VOLTAGE troubleshooting procedure.

• Turn ignition switch to the ON position (Engine

off).
• Measure the voltage at throttle body terminal B
(harness-side).
• Is the voltagewithin 4.5— 5.5 V?
6 INSPECT TP2 SIGNAL CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace the suspected wiring harness, then go to
• Turn the ignition switch off. Step 8.
• Inspect for continuity between throttle body
terminal C (harness-side) and PCM terminal
2AL.
• Is there continuity?
7 INSPECT TP2 SIGNAL CIRCUIT FOR SHORT Yes Repair or replace the suspected wiring harness, then go to
TO GROUND the next step.
• Inspect for continuity between throttle body No Go to the next step.
terminal C (harness-side) and body ground.
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0222 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS–2.3— 5.0 kPa {–0.023— 0.05 kgf/
cm2, –0.34— 0.72 psi}.
• Start the engine and warm it up completely.
• Is same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–108
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0223[L3 WITH TC]
id010239806100

DTC P0223 TP sensor No.2 circuit high input

• If the PCM detects that the TP sensor No.2 voltage is above 4.85 V after the ignition switch to the ON
position, the PCM determines that the TP circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle. 01-02
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• TP sensor malfunction
• Connector or terminal malfunction
POSSIBLE
• Open circuit between throttle body terminal D and PCM terminal 2AP
CAUSE
• Short to power supply between throttle body terminal C and PCM terminal 2AL
• PCM malfunction

TP SENSOR NO.2
(THROTTLE BODY) PCM

5
3 7
B 2AO

3 5 7
C 2AL

3 6 7
D 2AP

THROTTLE BODY PCM

HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
D C B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT THROTTLE BODY CONNECTOR FOR Yes Repair or replace the suspected terminal, then go to Step
POOR CONNECTION 8.
• Disconnect the throttle body connector. No Go to the next step.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?

01-02–109
1871-1U-06B(01-02).fm 110 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT TP SENSOR Yes Go to the next step.
• Perform the TP sensor inspection. No Replace the throttle body, then go to Step 8.
(See01-40-32 THROTTLE POSITION (TP)
SENSOR INSPECTION[L3 WITH TC])
• Is the TP sensor normal?
5 INSPECT TP2 SIGNAL CIRCUIT FOR SHORT Yes Repair or replace for a short to a power supply. Then, go to
TO POWER SUPPLY Step 8.
• Turn ignition switch to the ON position (Engine No Go to the next step.
off).
• Measure the voltage between throttle body
terminal C (harness-side) and body ground.
• Is the voltage above 4.9 V?
6 INSPECT TP SENSOR GROUND CIRCUIT FOR Yes Repair or replace for an open circuit between throttle body
OPEN CIRCUIT terminal D (harness-side) and PCM connector terminal
• Inspect for continuity between throttle body 2AP (harness-side). Then, go to Step 8.
connector terminal D (harness-side) and body No Go to the next step.
ground.
• Is there continuity?
7 INSPECT PCM CONNECTOR FOR POOR Yes Repair terminal, then go to the next step.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
8 VERIFY TROUBLESHOOTING OF DTC P0223 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–110
1871-1U-06B(01-02).fm 111 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0234[L3 WITH TC]
id010239806200

DTC P0234 Turbocharger over boost condition

• If the manifold absolute pressure or charging efficiency are more than the specification for the specified
period of time, the PCM determines that the turbocharger is in an over boost condition.
MONITORING CONDITIONS
— Engine speed is 2,000 rpm or more.
DETECTION
CONDITION Diagnostic support note 01-02
• This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• DTCs are stored in the PCM memory.
• Wastegate control solenoid valve malfunction
POSSIBLE
• Vacuum hose looseness or damage
CAUSE
• Improper installation of the vacuum hose

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT WASTEGATE CONTROL SOLENOID Yes Replace the wastegate control solenoid valve, then go to
VALVE Step 5.
• Inspect the wastegate control solenoid valve. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
(See01-13-14 WASTEGATE CONTROL INSTALLATION[L3 WITH TC].)
SOLENOID VALVE INSPECTION[L3 WITH No Go to the next step.
TC].)
• Is there any malfunction?
4 INSPECT VACUUM HOSE Yes Repair or replace the suspected part, then go to the next
• Inspect the vacuum hose condition for the step.
following: No Go to the next step.
— Looseness
— Damage
— Improper installation
• Is there any malfunction?
5 VERIFY TROUBLESHOOTING OF DTC P0234 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all the disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
6 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–111
1871-1U-06B(01-02).fm 112 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0245[L3 WITH TC]
id010239806300

DTC P0245 Turbocharger wastegate solenoid low

• When the PCM turns the wastegate control solenoid valve off but the wastegate control solenoid valve
circuit voltage is low, the PCM determines that the wastegate control solenoid valve control circuit voltage is
low.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (Other).
• The MIL does not illuminate.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is not available.
• DTCs are stored in the PCM memory.
• Wastegate control solenoid valve malfunction
• Connector or terminal malfunction
• Open circuit in the wiring harness between wastegate control solenoid valve terminal A and main relay
POSSIBLE • Open circuit in the wiring harness between wastegate control solenoid valve terminal B and PCM terminal
CAUSE 2AA
• Short to ground in the wiring harness between wastegate control solenoid valve terminal B and PCM
terminal 2AA
• PCM malfunction
MAIN RELAY PCM

7
4 7 6
A B 2AA
3 3
5

PCM
WASTEGATE CONTROL SOLENOID VALVE WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR
2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–112
1871-1U-06B(01-02).fm 113 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT WASTEGATE CONTROL SOLENOID Yes Repair or replace the terminal, then go to Step 8.
VALVE CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the wastegate control solenoid
valve connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT WASTEGATE CONTROL SOLENOID Yes Repair or replace the wiring harness for a possible short to
VALVE CIRCUIT FOR SHORT TO GROUND ground, then go to Step 8.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between the wastegate
control solenoid valve terminal B and body
ground.
• Is there continuity?
5 INSPECT WASTEGATE CONTROL SOLENOID Yes Replace the wastegate control solenoid valve, then go to
VALVE Step 8.
• Inspect the wastegate control solenoid valve. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
(See01-13-14 WASTEGATE CONTROL INSTALLATION[L3 WITH TC].)
SOLENOID VALVE INSPECTION[L3 WITH No Go to the next step.
TC].)
• Is there any malfunction?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 8.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 INSPECT WASTEGATE CONTROL SOLENOID Yes Go to the next step.
VALVE GROUND CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Turn the ignition switch off. then go to the next step.
• Inspect for continuity between the following
terminals:
— Wastegate control solenoid valve terminal A
(wiring harness-side) and main relay
— Wastegate control solenoid valve terminal B
(wiring harness-side) and PCM terminal
2AA (wiring harness-side)
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0245 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–113
1871-1U-06B(01-02).fm 114 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0246[L3 WITH TC]
id010239806400

DTC P0246 Turbocharger wastegate solenoid high

• When the PCM turns the wastegate control solenoid valve on but the wastegate control solenoid valve
circuit voltage is high, the PCM determines that the wastegate control solenoid valve control circuit voltage
is high.
Diagnostic support note
DETECTION • This is a continuous monitor (Other).
CONDITION • The MIL does not illuminate.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is not available.
• DTCs are stored in the PCM memory.
• Wastegate control solenoid valve malfunction
• Connector or terminal malfunction
POSSIBLE
• Short to power supply in the wiring harness between wastegate control solenoid valve terminal B and PCM
CAUSE
terminal 2AA
• PCM malfunction
MAIN RELAY PCM

6 5
A B 2AA
3 3
4

PCM
WASTEGATE CONTROL SOLENOID VALVE WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR
2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A
B A 2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT WASTEGATE CONTROL SOLENOID Yes Repair or replace the terminal, then go to Step 7.
VALVE CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the wastegate control solenoid
valve connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?

01-02–114
1871-1U-06B(01-02).fm 115 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT WASTEGATE CONTROL SOLENOID Yes Replace the wastegate control solenoid valve, then go to
VALVE Step 7.
• Inspect the wastegate control solenoid valve. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
(See01-13-14 WASTEGATE CONTROL INSTALLATION[L3 WITH TC].)
SOLENOID VALVE INSPECTION[L3 WITH No Go to the next step.
TC].)
• Is there any malfunction? 01-02
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 7.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
6 INSPECT WASTEGATE CONTROL SOLENOID Yes Repair or replace the wiring harness for a possible short to
VALVE CONTROL CIRCUIT FOR SHORT TO power supply, then go to the next step.
POWER SUPPLY No Go to the next step.
• Turn the ignition switch to the ON position.
• Inspect for continuity between the wastegate
control solenoid valve terminal B (wiring
harness-side) and body ground.
• Is the voltage B+?
7 VERIFY TROUBLESHOOTING OF DTC P0246 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0300[L3 WITH TC]
WM: DTC P03XX

id010239806500

DTC P0300 Random misfire detected

• The PCM monitors the CKP sensor input signal interval time. The PCM calculates the change of interval
time for each cylinder. If the change of interval time exceeds the preprogrammed criteria, the PCM detects
a misfire in the corresponding cylinder. While the engine is running, the PCM counts the number of misfires
that occurred at 200 crankshaft revolutions and 1,000 crankshaft revolutions and calculates a misfire
ratio for each crankshaft revolution. If the ratio exceeds the preprogrammed criteria, the PCM determines
that a misfire, which can damage the catalytic converter or affect emission performance, has occurred.
Diagnostic support note
DETECTION • This is a continuous monitor (Misfire).
CONDITION • The MIL illuminates if the PCM detects a misfire which affects emission performance in two consecutive
drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• The MIL flashes if the PCM detects a misfire which can damage the catalytic converter during the first drive
cycle.
• PENDING CODE is available if the PCM detects a misfire which affects emission performance during the
first drive cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.

01-02–115
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0300 Random misfire detected
• CKP sensor malfunction
• CMP sensor malfunction
• Ignition coil malfunction
• Ignition system malfunction
• MAF sensor contamination
• Excess air suction in intake air system (between MAF sensor and intake manifold)
• Fuel pump malfunction
• High pressure fuel pump malfunction
• Relief valve (built-in fuel delivery pipe) malfunction
• Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
• Improper fuel pump speed control operation
• Fuel pressure regulator (built-in fuel pump unit) malfunction
POSSIBLE
• Fuel line clogged
CAUSE
• Fuel filter clogged
• Fuel leakage in fuel line
• Fuel runout
• Poor quality fuel
• Purge control solenoid valve malfunction
• PCV valve malfunction
• EGR valve malfunction
• Vacuum hoses damage or improper connection
• Related connector and terminal malfunction
• Related wiring harness malfunction
• Insufficient compression
• Variable valve timing control system improper

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Misfire related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the appropriate DTC troubleshooting.
STORED DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch off then to the ON No Go to the next step.
position (Engine off).
• Verify related pending code or stored DTCs.
• Are other DTCs present?
4 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the suspected circuit and/or part according to the
(KEY TO ON/IDLE) inspection results.
• Access APP1, APP2, ECT, IAT, MAF, RPM, TP, (See01-40-6 PCM INSPECTION[L3 WITH TC].)
and VSS PIDs using the M-MDS. Then go to Step 26.
(See01-40-6 PCM INSPECTION[L3 WITH No Go to the next step.
TC].)
• Is there any signal that is far out of specification
when the ignition switch is turned to the ON
position and the engine idles?
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the suspected circuit and/or part according to the
UNDER TROUBLE CONDITION inspection results.
• Inspect the same PIDs as in Step 4 while (See01-40-6 PCM INSPECTION[L3 WITH TC].)
simulating FREEZE FRAME DATA condition. Then go to Step 26.
• Is there any signal which causes drastic No Go to the next step.
changes?
6 INSPECT CMP SENSOR Yes Go to the next step.
• Inspect the CMP sensor. No Inspect the installation condition for damage to the timing
(See01-40-45 CAMSHAFT POSITION (CMP) chain and gears, repair the malfunctioning part.
SENSOR INSPECTION[L3 WITH TC].) • If it is normal, replace the CMP sensor.
• Is the CMP sensor normal? Then go to Step 26.

01-02–116
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
7 VERIFY CKP SENSOR INSTALLATION Yes Retighten the CKP sensor, then go to Step.
CONDITION No Go to the next step.
• Inspect the CKP sensor for looseness.
• Is the CKP sensor loose?
8 INSPECT IGNITION COIL HARNESSES Yes Go to the next step.
• Inspect the ignition coil related wiring harness No Repair the suspected wiring harnesses, then go to Step 26.
condition (intermittent open or short) for all 01-02
cylinders.
• Are wiring harness conditions normal?
9 INSPECT IGNITION SYSTEM OPERATION Yes Go to the next step.
• Carry the out spark test. No Repair or replace the malfunctioning part according to the
(See01-03-78 ENGINE CONTROL SYSTEM spark test result.
OPERATION INSPECTION[L3 WITH TC]) Then go to Step 26.
• Is a strong blue spark visible at each cylinder?
10 INSPECT MAF PID Yes Go to the next step.
• Start the engine. No Replace the MAF sensor, then go to Step 26.
• Access the MAF PID using the M-MDS.
• Race the engine and verify that the MAF PID
changes quickly according to the change in the
engine speed.
• Is the MAF PID response normal?
11 INSPECT IN INTAKE AIR SYSTEM FOR Yes Repair or replace suspected part, then go to Step 26.
EXCESSIVE AIR SUCTION No Go to the next step.
• Inspect for air leakage at the following:
— Between the MAF sensor and throttle body
— Between throttle body and intake manifold
• Is there any malfunction?
12 INSPECT FUEL LINE PRESSURE Yes Go to Step 14.
• Inspect fuel line pressure. No If the fuel line pressure is too low, go to the next step.
(See01-14-5 FUEL LINE PRESSURE If the fuel line pressure is too high, replace the fuel pump
INSPECTION[L3 WITH TC].) unit,
• Is the fuel line pressure normal? then go to Step 26.
13 INSPECT FUEL LINE FROM FUEL PUMP TO Yes Replace suspected fuel line, then go to Step 20.
FUEL DELIVERY PIPE No Inspect the fuel filters for following:
• Visually inspect fuel line for fuel leakage. • Foreign material or stain inside fuel filter (low-pressure
• Is there any fuel leakage? side)
Perform following actions depend on the result above.
• If foreign materials or stain is found inside fuel filter
(low-pressure side), clean the fuel tank and filter (low-
pressure side).
• If normal, replace the fuel pump unit.
Then, go to Step 26.
14 INSPECT ENGINE COMPRESSION Yes Go to the next step.
• Inspect the engine compression. No Perform engine overhaul for repairs, then go to Step 26.
(See01-10-9 COMPRESSION
INSPECTION[L3 WITH TC].)
• Is it normal?
15 INSPECT VARIABLE VALVE TIMING CONTROL Yes Go to the next step.
SYSTEM OPERATION No Repair or replace the malfunctioning part according to the
• Inspect variable valve timing control system variable valve timing control system inspection results, then
operation. go to Step 26.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC])
• Does the variable valve timing control system
work properly?

01-02–117
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
16 INSPECT OPERATION OF PURGE CONTROL Yes Go to the next step.
SOLENOID VALVE No Replace the purge control solenoid valve, then go to Step
• Turn the ignition switch off. 26.
• Connect the vacuum pump to the purge control
solenoid valve and apply vacuum to the
solenoid.
• Verify that the solenoid holds vacuum.
• Turn the ignition switch to the ON position
(Engine off).
• Access EVAPCP PID in the SIMULATION
TEST using the M-MDS.
• Set duty value to 100% for the EVAPCP PID.
• Apply vacuum while turning the solenoid from
OFF to ON and simulating the EVAPCP PID
with a 100% duty value.
• Verify that the solenoid releases vacuum while
the solenoid is turned on.
• Is the purge control solenoid valve operation
normal?
17 INSPECT PCV VALVE OPERATION Yes Replace the PCV valve, then go to Step 26.
• Turn the ignition switch off. No Go to the next step.
• Remove the PCV valve and inspect the valve
operation.
(See01-16-14 POSITIVE CRANKCASE
VENTILATION (PCV) VALVE INSPECTION[L3
WITH TC].)
• Is the PCV valve operation normal?
18 INSPECT OPERATION OF EGR VALVE Yes Repair or replace the EGR valve, then go to Step 26.
• Remove the EGR valve. No Go to the next step.
• Visually inspect the if EGR valve is stuck open.
• Is the EGR valve stuck open?
19 VERIFY FUEL PUMP SPEED CONTROL Yes Go to the next step.
OPERATION No Inspect or replace the malfunctioning parts, according to
• Perform Fuel Pump Speed Control Inspection. inspection results.
(See01-03-78 ENGINE CONTROL SYSTEM Then go to Step 26.
OPERATION INSPECTION[L3 WITH TC].)
• Does the fuel pump speed control work
properly?
20 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 24.
• Access and monitor the FUEL_PRES PID. No Go to the next step.
• Is the FUEL_PRES PID value within the
specification?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
21 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 23.
• Is the vehicle accelerate performance
normally?
22 INSPECT FUEL PRESSURE SENSOR Yes Go to the next step.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 26.
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
23 INSPECT HIGH PRESSURE FUEL PUMP Yes Go to Step 26.
• Replace the high pressure fuel pump No Go to the next step.
• Monitor FUEL_PRES PID
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)

01-02–118
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
24 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between the No Inspect for the following.
fuel pump and the high pressure fuel pump. • Fuel line restriction
• Measure the low side fuel pressure. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If normal replace the fuel pump.Then go to Step 26.
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the 01-02
specification?
25 INSPECT SEALING OF ENGINE COOLANT Yes Repair or replace the malfunctioning part according to the
PASSAGE inspection results.
• Perform “ENGINE COOLANT LEAKAGE Then go to the next step.
INSPECTION.” No Go to the next step.
(See01-12-6 ENGINE COOLANT LEAKAGE
INSPECTION[L3 WITH TC].)
• Is there any malfunction?
26 VERIFY TROUBLESHOOTING OF MISFIRE DTC Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Clear the DTC from the memory using the M-
MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
27 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0301, P0302, P0303, P0304[L3 WITH TC]
id010239806600

DTC P0301 Cylinder No.1 misfire detected

DTC P0302 Cylinder No.2 misfire detected
DTC P0303 Cylinder No.3 misfire detected
DTC P0304 Cylinder No.4 misfire detected
• The PCM monitors the CKP sensor input signal interval time. The PCM calculates the change of interval
time for each cylinder. If the change of interval time exceeds the preprogrammed criteria, the PCM detects
a misfire in the corresponding cylinder. While the engine is running, the PCM counts the number of misfires
that occurred at 200 crankshaft revolutions and 1,000 crankshaft revolutions and calculates a misfire
ratio for each crankshaft revolution. If the ratio exceeds the preprogrammed criteria, the PCM determines
that a misfire, which can damage the catalytic converter or affect emission performance, has occurred.
Diagnostic support note
DETECTION • This is a continuous monitor (Misfire).
CONDITION • The MIL illuminates if the PCM detects a misfire which affects emission performance in two consecutive
drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• The MIL flashes if the PCM detects a misfire which can damage the catalytic converter during the first drive
cycle.
• PENDING CODE is available if the PCM detects a misfire which affects emission performance during first
drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Spark plug malfunction
• Ignition coil malfunction
• Ignition system malfunction
POSSIBLE • Fuel injector malfunction
CAUSE • Air suction in intake air system (between dynamic chamber and cylinder head)
• Inadequate engine compression due to engine internal malfunction
• Related connector or terminal malfunction
• Related wiring harness

01-02–119
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Misfire related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the appropriate DTC troubleshooting.
STORED DTCs (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch off then to the ON No Go to the next step.
position (Engine off).
• Verify related pending code or stored DTCs.
• Are other DTCs present?
4 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the suspected circuit and/or part according to
(KEY TO ON /IDLE) inspection results. Then go to Step 14.
• Access APP1, APP2, ECT, IAT, MAF, RPM, TP (See01-40-6 PCM INSPECTION[L3 WITH TC].)
and VSS PIDs using the M-MDS. No Go to the next step.
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
• Is there any signal that is far out of specification
when the ignition switch is turned to the ON
position and the engine idles?
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the suspected circuit and/or part according to
UNDER TROUBLE CONDITION inspection results. Then go to Step 14.
• Inspect the same PIDs as in Step 4 while (See01-40-6 PCM INSPECTION[L3 WITH TC].)
simulating the FREEZE FRAME DATA No Go to the next step.
condition.
• Is there any signal which causes drastic
changes?
6 INSPECT SPARK PLUG CONDITION Yes • If a spark plug is wet, fuel flooding is suspected. Then
• Turn the ignition switch off. go to Step 14.
• Remove the spark plug from the suspected • If a spark plug has cracks, excessive wear or an
cylinder. improper gap, replace the malfunctioning spark plug.
• Inspect the spark plug condition: Then go to Step 14.
— Cracks No Go to the next step.
— Excess wear
— Gap
— Wetness
• Is there any problem found on the spark plug?
7 INSPECT INTAKE-AIR SYSTEM FOR AIR Yes Repair or replace suspected part, then go to Step 14.
SUCTION No Go to the next step.
• Inspect for air leakage at the following:
— Around connection of dynamic chamber and
intake manifold
— Around connection of intake manifold and
cylinder head
• Is air leakage found?
8 INSPECT SEALING OF ENGINE COOLANT Yes Repair or replace the malfunctioning part according to the
PASSAGE inspection results.
• Perform “ENGINE COOLANT LEAKAGE Then go to Step 14.
INSPECTION.” No Go to the next step.
(See01-12-6 ENGINE COOLANT LEAKAGE
INSPECTION[L3 WITH TC].)
• Is there any malfunction?

01-02–120
1871-1U-06B(01-02).fm 121 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
9 INSPECT FUEL INJECTOR WIRING HARNESS Yes Go to the next step.
• Remove the intake air system parts. No Inspect the fuel injector wiring harnesses.
• Disconnect the fuel injector connector on Repair or replace if necessary, then go to Step 14.
suspected cylinder.
• Connect the NOID LIGHT to the fuel injector
terminals.
• Inspect the light dim during cranking. 01-02
• Does the light not illuminate?
10 INSPECT IGNITION COIL HARNESSES Yes Go to the next step.
• Inspect the ignition coil related wiring harness No Repair the suspected wiring harnesses, then go to Step 14.
condition (intermittent open or short circuit) of
the suspected cylinder.
• Are the wiring harness conditions normal?
11 INSPECT IGNITION SYSTEM OPERATION Yes Go to the next step.
• Carry out the spark test. No Repair or replace the malfunctioning part according to the
(See01-03-78 ENGINE CONTROL SYSTEM spark test result.
OPERATION INSPECTION[L3 WITH TC]) Then go to Step 14.
• Is a strong blue spark visible at the suspected
cylinder?
12 INSPECT ENGINE COMPRESSION Yes Go to the next step.
• Inspect the engine compression. No Overhaul the engine, then go to the next step.
(See01-10-9 COMPRESSION
INSPECTION[L3 WITH TC].)
• Is the engine compression normal?
13 INSPECT FUEL INJECTOR OPERATION Yes Go to Step 14.
• Connect the M-MDS to DLC-2. No Go to the next step.
• Access INJ#1, INJ#2, INJ#3, INJ#4 PIDs.
• Start the engine and warm it up to the normal
operating temperature.
• Turn the fuel injector off from on using the PID
simulation function.
• Does the engine speed decrease while the fuel
injectors are turned off?
14 VERIFY IF TROUBLESHOOTING OF MISFIRE Yes Replace the PCM, then go to the next step.
DTC COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Start the engine.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode. (See01-02-10
OBD-II DRIVE MODE[L3 WITH TC].)
• Is the PENDING CODE for this DTC present?
15 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–121
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0327[L3 WITH TC]
id010239806700

DTC P0327 Knock sensor circuit low input

• PCM monitors the input signal from the knock sensor when the engine is running. If the input voltage at the
PCM terminals between 2V and 2U is below 0.12 V, the PCM determines that the knock sensor circuit has
a malfunction.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Knock sensor malfunction
• Connector or terminal malfunction
POSSIBLE • Open or short to ground circuit between knock sensor connector terminal A and PCM terminal 2U
CAUSE • Open or short to ground circuit between knock sensor connector terminal B and PCM terminal 2V
• Knock sensor wires (2) shorted
• PCM malfunction
PCM
KNOCK SENSOR

4 7
3 5 6 8
A 2U

7
3 5 6 8
B 2V

KNOCK SENSOR PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
A B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT KNOCK SENSOR CONNECTOR Yes Repair the terminal, then go to Step 9.
TERMINAL FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the knock sensor connector.
• Check for poor connection at terminals A and B
(such as damaged, pulled-out pins, corrosion).
• Is there any malfunction?

01-02–122
1871-1U-06B(01-02).fm 123 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT KNOCK SENSOR Yes Go to the next step.
• Perform the knock sensor inspection. No Replace the knock sensor, then go to the next step.
(See01-40-47 KNOCK SENSOR (KS)
INSPECTION[L3 WITH TC])
• Is the knock sensor normal?
5 INSPECT KNOCK SENSOR CIRCUITS FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the suspected wiring harness, then go to 01-02
• Disconnect the knock sensor connector. Step 9.
• Inspect the continuity between the following
circuits:
— Knock sensor female terminal A (harness-
side) and PCM terminal 2U (harness-side)
— Knock sensor female terminal B (harness-
side) and PCM terminal 2V (harness-side)
• Is there continuity?
6 INSPECT KNOCK SENSOR CIRCUITS FOR Yes Repair or replace the suspected wiring harness, then go to
SHORT TO GROUND Step 9.
• Inspect the continuity between the following No Go to the next step.
circuits:
— Knock sensor female terminal A (harness-
side) and body ground
— Knock sensor female terminal B (harness-
side) and body ground
• Is there continuity?
7 INSPECT FOR SHORT CIRCUITS Yes Repair or replace the suspected wiring harness, then go to
• Inspect for continuity between knock sensor Step 9.
female terminals A and B (harness-side). No Go to the next step.
• Is there continuity?
8 INSPECT PCM CONNECTOR TERMINAL FOR Yes Repair the terminal, then go to the next step.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection at terminals 2V and
2U (such as damaged, pulled-out pins,
corrosion).
• Is there any malfunction?
9 VERIFY TROUBLESHOOTING OF DTC P0327 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is the same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–123
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0328[L3 WITH TC]
id010239806800

DTC P0328 Knock sensor circuit high input

• PCM monitors the input signal from the knock sensor when the engine is running. If the input voltage at the
PCM terminals between 2V and 2U is below 4.9 V, the PCM determines that the knock sensor circuit has
a malfunction.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Knock sensor malfunction
• Connector or terminal malfunction
POSSIBLE
• Short to the power supply in the wiring harness between knock sensor terminal A and PCM terminal 2U
CAUSE
• Short to the power supply in the wiring harness between knock sensor terminal B and PCM terminal 2V
• PCM malfunction
PCM
KNOCK SENSOR

4
3 5 6
A 2U

3 5 6
B 2V

KNOCK SENSOR PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
A B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–124
1871-1U-06B(01-02).fm 125 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT KNOCK SENSOR CONNECTOR Yes Repair terminal, then go to step 7.
TERMINAL FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the knock sensor connector.
• Inspect for poor connection at terminals A and
B (such as damaged, pulled-out pins,
corrosion).
• Is there any malfunction?
4 INSPECT KNOCK SENSOR Yes Go to the next step.
• Perform the knock sensor inspection. No Replace the knock sensor, then go to step 7.
(See01-40-47 KNOCK SENSOR (KS)
INSPECTION[L3 WITH TC])
• Is the knock sensor normal?
5 INSPECT KNOCK SIGNAL CIRCUIT FOR Yes Repair or replace the wiring harness for a short to the
SHORT TO POWER SUPPLY power supply, then go to step 7.
• Turn ignition switch to the ON position (Engine No Go to the next step.
off).
• Measure the voltage between knock sensor
terminal A (harness-side) and body ground and
knock sensor terminal B (harness-side) and
body ground.
• Is there any voltage?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 VERIFY TROUBLESHOOTING OF DTC P0328 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to connect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–125
1871-1U-06B(01-02).fm 126 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0335[L3 WITH TC]
id010239806900

DTC P0335 CKP sensor circuit malfunction

• If the PCM does not receive the input voltage from the CKP sensor for 4.2 s while the MAF is 2.0 g/s {0.26
lb/min.} or above, the PCM determines that the CKP sensor circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• CKP sensor malfunction
• Connector or terminal malfunction
• CKP sensor is dirty.
• Short to the power supply between CKP sensor terminal A and PCM terminal 2P
• Short to the power supply between CKP sensor terminal B and PCM terminal 2W
• Short to ground between CKP sensor terminal C and main relay
POSSIBLE
• Short to ground between CKP sensor terminal B and PCM terminal 2W
CAUSE
• Open circuit between CKP sensor terminal A and PCM terminal 2P
• Open circuit between CKP sensor terminal B and PCM terminal 2W
• Open circuit between CKP sensor terminal C and main relay
• CKP sensor pulse wheel malfunction
• Both CKP sensor wires are shorted to each other
• PCM malfunction
MAIN RELAY
CKP SENSOR PCM

4
3 6
C
7 9
10

4 8
5 6
B 2W
7 9

4 8
5 9
A 2P

CKP SENSOR PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
C B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–126
1871-1U-06B(01-02).fm 127 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available the
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY CKP SENSOR VOLTAGE Yes Go to the next step.
• Disconnect the CKP sensor connector. No Go to step 10.
• Connect the voltmeter between the CKP
sensor connector terminals B and C (sensor-
side).
• Inspect the voltage in the AC range while
cranking the engine.
• Is there any voltage?
4 INSPECT CKP SENSOR CONNECTOR FOR Yes Go to the next step.
POOR CONNECTION No Reconnect the connector, then go to Step 11.
• Verify that the CKP sensor connector is
connected securely.
• Is connector normal?
5 INSPECT CKP CIRCUIT FOR SHORT TO Yes Repair or replace the suspected wiring harness, then go to
POWER SUPPLY Step 11.
• Turn ignition switch OFF No Go to the next step.
• Disconnect the CKP sensor connector.
• Turn ignition switch to the ON position (Engine
off).
• Measure the voltage between following
terminals (harness-side):
— CKP sensor terminal A
— CKP sensor terminal B
• Is there any voltage?
6 INSPECT CKP CIRCUIT FOR SHORT TO Yes Repair or replace the suspected wiring harness, then go to
GROUND Step 11.
• Inspect for continuity between following No Go to the next step.
terminal and body ground:
— CKP sensor connector terminal C (harness-
side)
— CKP sensor connector terminal B (harness-
side)
• Is there continuity?
7 INSPECT CKP CIRCUITS FOR SHORT CIRCUIT Yes Repair or replace the suspected wiring harness, then go to
• Inspect for continuity between CKP sensor Step 11.
connector terminals B and C (harness-side). No Go to the next step.
• Is there continuity?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to Step 11.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 INSPECT CKP CIRCUIT FOR OPEN CIRCUIT Yes Go to Step 11.
• Inspect for continuity between the following No Repair or replace the suspected wiring harness, then go to
circuits: Step 11.
— CKP sensor terminal A (harness-side) and
PCM terminal 2P (harness-side)
— CKP sensor terminal B (harness-side) and
PCM terminal 2W (harness-side)
— CKP sensor terminal C (harness-side) and
main relay
• Are there continuity?

01-02–127
1871-1U-06B(01-02).fm 128 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
10 INSPECT CKP SENSOR Yes Go to the next step.
• Turn the ignition switch off. No Inspect the CKP sensor pulse wheel for damage. Replace
• Perform the CKP sensor inspection. the CKP sensor pulse wheel and go to the next step.
(See01-40-43 CRANKSHAFT POSITION
(CKP) SENSOR INSPECTION[L3 WITH TC])
• Is the CKP sensor normal?
11 VERIFY TROUBLESHOOTING OF DTC P0335 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Access the MAF PID using the M-MDS.

Note
• The MAF PID should indicate 2.0 g/s
{0.26 lb/min.} or above during this test

• Is the same DTC present?

12 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0340[L3 WITH TC]
id010239807000

DTC P0340 Camshaft position (CMP) sensor circuit malfunction

• PCM monitors the input voltage from the CMP sensor when engine is running. If the PCM does not receive
the input voltage from the CMP sensor while the PCM receives the input signal from the CKP sensor, the
PCM determines that the CMP circuit has a malfunction.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• CMP sensor malfunction
• Connector or terminal malfunction
• CMP sensor is dirty
• Short to the power circuit between CMP sensor terminal C and PCM terminal 2S
• Short to the power circuit between CMP sensor terminal B and PCM terminal 2P
• Short to ground circuit between CMP sensor terminal A and main relay
• Short to ground circuit between CMP sensor terminal C and PCM terminal 2S
• Open circuit between CMP sensor terminal A and main relay
POSSIBLE • Open circuit between CMP sensor terminal B and PCM terminal 2P
CAUSE • Open circuit between CMP sensor terminal C and PCM terminal 2S
• Both CMP sensor wires are shorted to each other
• CMP sensor pulse wheel malfunction
• CMP sensor misinstallation
• Timing chain misinstallation
• Loose timing chain or improper valve timing
• Loose camshaft sprocket lock bolt
• Loose crankshaft pulley lock bolt
• PCM malfunction

01-02–128
1871-1U-06B(01-02).fm 129 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0340 Camshaft position (CMP) sensor circuit malfunction
MAIN RELAY
CMP SENSOR PCM

4
3 6
A
7 9 01-02
10

4 8
3 5 6
C 2S
7 9

4 8
5 9
B 2P

CMP SENSOR PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

C B A 2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY CMP SENSOR VOLTAGE Yes Go to the next step.
• Disconnect the CMP sensor connector. No Go to step 10.
• Connect a voltmeter between CMP sensor
connector terminals A and C (sensor-side).
• Inspect the voltage in AC range while cranking
the engine.
• Is there any voltage?
4 INSPECT CMP SENSOR CONNECTOR FOR Yes Go to the next step.
POOR CONNECTION No Reconnect the connector, then go to Step 15.
• Verify that the CMP sensor connector is
connected securely.
• Is the connector normal?

01-02–129
1871-1U-06B(01-02).fm 130 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 INSPECT CMP CIRCUIT FOR SHORT TO Yes Repair or replace the suspected wiring harness, then go to
POWER Step 15.
• Turn ignition switch OFF. No Go to the next step.
• Disconnect the CMP sensor connector.
• Turn ignition switch to the ON position (Engine
off)
• Measure voltage between the following
terminals:
— CMP sensor connector terminal C (harness-
side) and body ground
— CMP sensor connector terminal B (harness-
side) and body ground
• Is the voltage B+?
6 INSPECT CMP CIRCUIT FOR SHORT TO Yes Repair or replace the suspected wiring harness, then go to
GROUND Step 15.
• Inspect for continuity between the following No Go to the next step.
terminal and body ground:
— CMP sensor connector terminal A (harness-
side)
— CMP sensor connector terminal C (harness-
side)
• Is there continuity?
7 INSPECT CMP CIRCUITS FOR SHORT CIRCUIT Yes Repair or replace the suspected wiring harness, then go to
• Inspect for continuity between CMP sensor Step 15.
connector terminals A and C (harness-side). No Go to the next step.
• Is there continuity?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to Step 15.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
9 INSPECT CMP CIRCUIT FOR OPEN CIRCUIT Yes Go to Step 11.
• Inspect for continuity between the following No Repair or replace the suspected wiring harness, then go to
circuits: Step 15.
— CMP sensor terminal A (harness-side) and
main relay
— CMP sensor terminal B (harness-side) and
PCM terminal 2P (harness-side)
— CMP sensor terminal C (harness-side) and
PCM terminal 2S (harness-side)
• Is there continuity?
10 INSPECT CMP SENSOR Yes Go to the Step 15.
• Turn the ignition switch off. No Replace the CMP sensor and go to Step 15.
• Perform the CMP sensor inspection.
(See01-40-45 CAMSHAFT POSITION (CMP)
SENSOR INSPECTION[L3 WITH TC].)
• Is the CMP sensor normal?
11 VERIFY CMP SENSOR INSTALLATION Yes Go to the next step.
• Verify the CKP sensor installation. No Reinstall the CKP sensor and go to Step 15.
(See01-40-45 CAMSHAFT POSITION (CMP)
SENSOR REMOVAL/INSTALLATION[L3 WITH
TC].)
• Is the CMP sensor installed correctly?
12 VERIFY VALVE TIMING MECHANISM Yes Go to the next step.
INSTALLATION No Reinstall the following parts and go to Step 15.
• Verify the valve timing mechanism installation • Timing chain
for the following parts: • Camshaft sprocket
— Timing chain misinstallation • Crankshaft pulley
— Loose camshaft sprocket lock bolt
— Loose crankshaft pulley lock bolt
• Is the valve timing mechanism installed
correctly?

01-02–130
1871-1U-06B(01-02).fm 131 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
13 INSPECT STOPPER PIN MECHANISM Yes Go to the next step.
• Remove the timing chain. No Replace the variable valve timing actuator, then go to Step
• Inspect the stopper pin. 15.
(See01-10-27 VARIABLE VALVE TIMING
ACTUATOR INSPECTION[L3 WITH TC].)
• Is the stopper pin mechanism normal?
14 INSPECT ROTOR POSITION Yes VARIABLE VALVE TIMING MECHANISM NORMAL 01-02
• Remove the variable valve timing actuator.
(See01-10-28 VARIABLE VALVE TIMING Note
ACTUATOR REMOVAL/INSTALLATION[L3 • This DTC is detected as an intermittent concern.
WITH TC]) • The intermittent concern might be removed by
• Is the rotor position at the maximum valve cleaning the variable valve timing mode control
timing retard? function.

Go to the next step.

No Replace the variable valve timing actuator, then go to the
next step.
15 VERIFY TROUBLESHOOTING OF DTC P0340 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Access the MAF PID using the M-MDS.

Note
• The MAF PID should indicate 1.95 g/s
{0.25 lb/min.} or above during this test

• Is same DTC present?

16 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0401[L3 WITH TC]
WM: DTC P04XX

id010239815300

DTC P0401 EGR flow insufficient detected

• PCM monitors the difference in intake manifold pressures when the EGR is operated and when it is
stopped. If the difference is too small, the PCM determines that the EGR flow is insufficient.
Diagnostic support note
DETECTION • This is an intermittent monitor (EGR system).
CONDITION • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• EGR valve malfunction
• MAP sensor malfunction
POSSIBLE
• EGR gasket malfunction
CAUSE
• Vacuum hose looseness or damage
• PCM malfunction

01-02–131
1871-1U-06B(01-02).fm 132 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(EGR system related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FOR OTHER DTCS Yes Repair the circuit malfunction for applicable DTCs.
• Turn the ignition switch off then to the ON No Go to the next step.
position (Engine off).
• Have other DTCs been stored?
4 INSPECT VACUUM HOSE CONDITION Yes Replace the vacuum hoses, then go to Step 8.
• Inspect freezing vacuum hoses for clogs, No Go to the next step.
damage, frozen, or vacuum leakage.
• Is there any malfunction?
5 INSPECT EGR VALVE MALFUNCTION Yes Go to the next step.
• Inspect the EGR valve. No Replace the EGR valve, then go to Step 8.
(See01-16-12 EGR VALVE INSPECTION[L3
WITH TC].)
• Is the EGR valve normal?
6 INSPECT MAP SENSOR MALFUNCTION Yes Go to the next step.
• Perform the MAP sensor inspection. No Replace the MAP sensor, then go to Step 8.
(See01-40-29 MANIFOLD ABSOLUTE
PRESSURE (MAP) SENSOR
INSPECTION[L3 WITH TC].)
• Is the EGR valve normal?
7 INSPECT EGR VALVE PASSAGE Yes Go to the next step.
• Turn the ignition switch off. No Install the gasket correctly, then go to the next step.
• Remove the EGR valve.
• Is the gasket installation normal?
8 MONITOR EGR SYSTEM BY DRIVE MODE Yes Go to the next step.
• Clear the DTC from the PCM memory using No Retry this step.
the M-MDS.
• Run the PCM Adaptive Memory Procedure
Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Stop the vehicle and access the ON BOARD
READINESS TEST to inspect the DRIVE
MODE completion status.
• Verify the FUEL_EVAL and EGR_EVAL PIDs
status.
• Do the FUEL_EVAL and EGR_EVAL PIDs
change to Yes?
9 VERIFY TROUBLESHOOTING OF DTC P0401 Yes Go to the next step.
COMPLETED No Replace the PCM, then go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Access the DIAGNOSTIC MONITORING
TEST RESULTS.
(See01-02-7 ON-BOARD DIAGNOSTIC
TEST[L3 WITH TC].)
• Verify the TEST #10: 31: 83 (EGR pressure
variation) value.
• Is the value within the specification?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

01-02–132
1871-1U-06B(01-02).fm 133 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

End Of Sie

DTC P0403[L3 WITH TC]

id010239807100

DTC P0403 EGR valve (stepper motor) circuit malfunction

• PCM monitors the input voltage from the EGR valve. If the voltage remain low or high, the PCM determines
that the EGR valve circuit has a malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects above malfunction condition in two consecutive drive cycles or in one 01-02
drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is not available.
• DTCs are not stored in the PCM memory.
• EGR valve malfunction
• Connector or terminal malfunction
• Short to the power supply in the wiring harness between EGR valve terminal E and PCM terminal 2AQ
• Short to the power supply in the wiring harness between EGR valve terminal A and PCM terminal 2AM
• Short to the power supply in the wiring harness between EGR valve terminal B and PCM terminal 2AR
• Short to the power supply in the wiring harness between EGR valve terminal F and PCM terminal 2AN
• Short to ground circuit in wiring harness between EGR valve terminal E and PCM terminal 2AQ
• Short to ground circuit in wiring harness between EGR valve terminal A and PCM terminal 2AM
POSSIBLE
• Short to ground circuit in wiring harness between EGR valve terminal B and PCM terminal 2AR
CAUSE
• Short to ground circuit in wiring harness between EGR valve terminal F and PCM terminal 2AN
• Open circuit in the wiring harness between EGR valve terminal E and PCM terminal 2AQ
• Open circuit in the wiring harness between EGR valve terminal A and PCM terminal 2AM
• Open circuit in the wiring harness between EGR valve terminal B and PCM terminal 2AR
• Open circuit in the wiring harness between EGR valve terminal F and PCM terminal 2AN
• Open circuit in the wiring harness between main relay terminal D and EGR valve terminal C
• Open circuit in the wiring harness between main relay terminal D and EGR valve terminal D
• PCM malfunction
MAIN RELAY

EGR VALVE PCM

9
3 3 6 7 8
C E 2AQ
9
3 6 7 8
C A 2AM
4
5
9
3 3 6 7 8
D B 2AR
9
3 6 7 8
F 2AN

EGR VALVE
WIRING HARNESS SIDE CONNECTOR PCM
WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

E C A 2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

F D B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–133
1871-1U-06B(01-02).fm 134 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT EGR VALVE CONNECTOR FOR POOR Yes Repair or replace the terminals and/or connector, then go
CONNECTION to Step 10.
• Turn the ignition switch off. No Go to the next step.
• Disconnect the EGR valve connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT POWER CIRCUIT FOR OPEN CIRCUIT Yes Go to the next step.
• Turn ignition switch to the ON position (Engine No Repair or replace the wiring harness for an open circuit
off). then go to Step 10.
• Measure the voltage following the terminal and
body ground.
— EGR valve terminal C (harness-side)
— EGR valve terminal D (harness-side)
• Is voltage B+?
5 INSPECT EGR VALVE Yes Go to the next step.
• Perform the EGR valve inspection. No Replace the EGR valve, then go to Step 10.
(See01-16-12 EGR VALVE INSPECTION[L3
WITH TC].)
• Is the EGR valve normal?
6 INSPECT FOR CONTROL CIRCUIT FOR SHORT Yes Repair or replace the wiring harness for a short to ground,
TO GROUND then go to Step 10.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between the following
terminals and body ground:
— EGR valve terminal E (harness-side)
— EGR valve terminal A (harness-side)
— EGR valve terminal B (harness-side)
— EGR valve terminal F (harness-side)
• is there continuity?
7 INSPECT FOR CONTROL CIRCUIT FOR SHORT Yes Repair or replace wiring harness for a short to power
TO POWER SUPPLY supply, then go to Step 10.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between the following
terminals and body ground:
— EGR valve terminal E (harness-side)
— EGR valve terminal A (harness-side)
— EGR valve terminal B (harness-side)
— EGR valve terminal F (harness-side)
• Is voltage B+?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminals and/or connector, then go
CONNECTION to Step 10.
• Turn the ignition switch off. No Go to the next step.
• Disconnect PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?

01-02–134
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
9 INSPECT CONTROL CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace harness for open circuit then go to the
• Remove the PCM with PCM connector next step.
connected.
• Inspect for continuity between the following
terminals (harness-side):
— Between EGR valve terminal E and PCM 01-02
terminal 2AQ
— Between EGR valve terminal A and PCM
terminal 2AM
— Between EGR valve terminal B and PCM
terminal 2AR
— Between EGR valve terminal F and PCM
terminal 2AN
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P0403 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch off.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0421[L3 WITH TC]
id010239807300

DTC P0421 Warm up catalyst system efficiency below threshold

• The PCM compares the number of front HO2S and rear HO2S inversions for a predetermined time. The
PCM monitors the number of inversions the rear side performs while the front side inverts for a specified
number of times when the following monitoring conditions are met. The PCM detects the inversion ratio. If
the inversion ratio is below the threshold, The PCM determines that the catalyst system has deteriorated.
MONITORING CONDITIONS
— Engine speed:1,500— 3,000 rpm
— Calculated TWC temperature: above 400 °C {752 °F}
— LOAD:15— 48% (at engine speed of 2,000 rpm)
DETECTION
CONDITION Diagnostic support note
• This is an intermittent monitor (Catalyst).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• DIAGNOSTIC MONITORING TEST RESULTS is available.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
• TWC deterioration or malfunction
• Exhaust gas leakage
POSSIBLE
• Loose front HO2S
CAUSE
• Loose rear HO2S
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Catalyst related) been recorded?

01-02–135
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the applicable DTC inspection.
STORED DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch off, then to the ON No Go to the next step.
position (Engine off).
• Verify the related PENDING CODE or stored
DTCs.
• Are other DTCs present?
4 INSPECT EXHAUST SYSTEM FOR EXHAUST Yes Repair or replace the malfunctioning part, then go to Step
GAS LEAKAGE 7.
• Visually inspect for exhaust gas leakage in the No Go to the next step.
exhaust system.
• Is there exhaust gas leakage?
5 INSPECT INSTALLATION OF FRONT AND Yes Go to the next step.
REAR HO2S No Retighten the sensor, then go to Step 7.
• Inspect the front and rear HO2S for looseness. (See01-15-2 EXHAUST SYSTEM REMOVAL/
• Is it normal? INSTALLATION[L3 WITH TC].)
6 INSPECT TWC Yes Replace the heated oxygen sensor, then go to the next
• Clear the DTC using the M-MDS generic OBD step.
function. No Replace the TWC, then go to the next step.
• Turn the ignition switch off then back to the ON
position.
• Inspect the TWC.
(See01-16-14 WARM-UP THREE-WAY
CATALYTIC CONVERTER (WU-TWC)
INSPECTION[L3 WITH TC].)
• Is it normal?
7 VERIFY TROUBLESHOOTING OF DTC P0421 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Clear the DTC from the memory using the M-
MDS.
• Perform the HO2S heater, HO2S, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–136
1871-1U-06B(01-02).fm 137 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0441[L3 WITH TC]
id010239041100

DTC P0441 Evaporative emission control system incorrect purge flow

• PCM measures the purge line pressure under the following conditions. If the vacuum between the charcoal
canister and the intake manifold does not reach the specification, PCM determines that the EVAP system is
clogged.
MONITORING CONDITION
— Engine speed: 1,500— 3,000 rpm 01-02
— Vehicle speed: 53— 136 km/h {32.9— 84.5 mph}
DETECTION Diagnostic support note
CONDITION • This is an intermittent monitor (Evaporative emission system).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.
• DIAGNOSTIC MONITORING TEST RESULT is available.
• Purge solenoid valve malfunction
• Evaporative emission system leak detection pump malfunction
POSSIBLE • Charcoal canister malfunction
CAUSE • EVAP hose damaged or loose
• EVAP pipe damaged
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Evaporative emission system related) been
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the appropriate DTC inspection.
STORED DTCS No Go to the next step.
• Turn the ignition switch off then to the ON
position (Engine off).
• Verify related pending code or stored DTCs.
• Is DTC P0443 present?
4 DETERMINE IF LEAK CONCERN OR Yes Go to Step 6.
BLOCKAGE CONCERN No Go to the next step.
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the system inspection fail?
5 INSPECT IF PURGE SOLENOID VALVE STUCK Yes Inspect the following parts for clogging.
CLOSED • Vacuum hoses between the intake manifold to the
• Inspect if the purge solenoid valve is stuck charcoal canister
closed. • Catch tank
(See01-16-9 PURGE SOLENOID VALVE • Charcoal canister
INSPECTION[L3 WITH TC].) Repair or replace the part, then go to Step 11.
• Is the purge solenoid valve normal? No Replace the purge solenoid valve, then go to Step 11.

01-02–137
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
6 LOCATE LEAK POINT Yes Repair leakage or replace the part, then go to Step 10.
• Inspect the following for leakage using the No Go to the next step.
ultrasonic leak detector.
— Charcoal canister
— Catch tank
— Fuel filler cap
— EVAP hoses and pipes
— Fuel tank
• Is leakage found?
7 INSPECT EVAP SYSTEM LEAK DETECTION Yes Go to Step 9.
PUMP No Go to the next step.
• Connect all disconnected connectors and
hoses.
• Place a clamp on the EVAP system leak
detection pump hose between the EVAP
system leak detection pump and air filter.
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the test result fail (red light turns on)?
8 CONFIRM EVAP SYSTEM LEAK DETECTION Yes Replace the EVAP system leak detection pump, then go to
PUMP LEAKAGE Step 10.
• Remove the clamp. No Go to the next step.
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the test result fail (red light turns on)?
9 INSPECT FUEL PUMP UNIT INSTALLATION Yes Go to the next step.
• Remove the fuel tank. No Repair or replace the fuel tank or sealing, then go to the
• Visually inspect for damage, insufficient sealing next step.
or a poorly installed pump unit.
• Is it normal?
10 PERFORM LEAK INSPECTION Yes Leakage still exists. Locate leak the point and repair.
• Connect all disconnected connectors and Then go to the next step.
hoses. No Go to the next step
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the test result fail (red light turns on)?
11 VERIFY TROUBLESHOOTING OF DTC P0441 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Start the engine and let it idle.
• Clear the DTC using the M-MDS.
• Turn the ignition switch off.
• Perform the “EVAP System Repair Verification
Drive Mode”.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC])
• Is the PENDING CODE for this DTC present?
12 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–138
1871-1U-06B(01-02).fm 139 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0442[L3 WITH TC]
id010239807500

DTC P0442 Evaporative emission control system leak detected (small leak)
• PCM measures the pump load current (EVAP line pressure) when the specified period has passed after the
EVAP system is sealed when the monitoring conditions are met. If the load does not reach the reference
current value within the specified period, the PCM determines that the EVAP system has a small leak.
MONITORING CONDITION
— The ignition switch is turned off. 01-02
— IAT: 5— 35 °C {40— 95 °F}
— Battery voltage: 11— 20 V
— Atmospheric pressure: 72.2 kPa {542 mmHg, 21.3 inHg} or above
DETECTION — Fuel tank level: 15— 85%
CONDITION Diagnostic support note
• This is an intermittent monitor (Evaporative emission system).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• DIAGNOSTIC MONITORING TEST RESULT is available.
• Purge solenoid valve malfunction
• EVAP system leak detection pump malfunction
• Charcoal canister malfunction
POSSIBLE • Fuel filler cap malfunction
CAUSE • Fuel tank malfunction
• Fuel pump unit poor seal
• EVAP hose damaged or loose
• EVAP pipe damaged

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Evaporative emission system related) been
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the appropriate DTC inspection.
STORED DTCS No Go to the next step.
• Turn the ignition switch off then to the ON
position (Engine off).
• Verify related PENDING CODE or stored
DTCs.
• Are other DTCs present?
4 CLASSIFY INTERMITTENT CONCERN OR Yes Go to the next step.
CONTINUOUS CONCERN No Intermittent concern exists. Inspect the purge solenoid
• Perform evaporative system leak inspection. valve and the EVAP system leak detection pump circuit for
(See01-03-78 ENGINE CONTROL SYSTEM an intermittent concern.
OPERATION INSPECTION[L3 WITH TC].) (See01-03-76 INTERMITTENT CONCERN
• Does the test result fail? TROUBLESHOOTING[L3 WITH TC].)
5 LOCATE LEAK POINT Yes Repair the leakage or replace the part, then go to Step 10.
• Inspect for leakage for the following using the No Go to the next step.
Evaporative Emissions Tester.
— Charcoal canister
— Catch tank
— Fuel filler cap
— EVAP hoses and pipes
— Fuel tank
• Is leakage found?

01-02–139
1871-1U-06B(01-02).fm 140 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
6 INSPECT PURGE SOLENOID VALVE Yes Go to the next step.
• Inspect purge solenoid valve is stuck closed. No Replace the purge solenoid valve, then go to Step 10.
(See01-16-9 PURGE SOLENOID VALVE
INSPECTION[L3 WITH TC].)
• Is the purge solenoid valve normal?
7 INSPECT EVAP SYSTEM LEAK DETECTION Yes Go to Step 9.
PUMP No Go to the next step.
• Connect all disconnected connectors and
hoses.
• Place the clamp on the EVAP system leak
detection pump hose between the EVAP
system leak detection pump and the air filter.
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the test result fail?
8 CONFIRM EVAP SYSTEM LEAK DETECTION Yes Replace the EVAP system leak detection pump, then go to
PUMP LEAKAGE Step 10.
• Remove the clamp. No Go to the next step.
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the test result failed?
9 INSPECT FUEL PUMP UNIT INSTALLATION Yes Go to the next step.
• Remove the fuel tank. No Repair or replace the fuel tank or sealing, then go to the
• Visually inspect for damage, insufficient sealing next step.
or a poorly installed pump unit.
• Is it normal?
10 PERFORM LEAK INSPECTION Yes Leakage still exists. Locate the leak point and repair.
• Connect all disconnected connectors and Then go to the next step.
hoses. No Go to the next step
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the test result failed?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0443[L3 WITH TC]
id010239807600

DTC P0443 EVAP control system purge control valve circuit malfunction
• PCM monitors the input voltages from the purge solenoid valve. If the voltage remains low or high, the PCM
determines that the purge solenoid valve circuit has a malfunction.
Diagnostic support note
• This is an continuous monitor (CCM).
DETECTION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
CONDITION one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Purge solenoid valve malfunction
• Connector or terminal malfunction
• Short to ground in the wiring harness between purge solenoid valve terminal B and PCM terminal 2AB
POSSIBLE
• Open circuit in the wiring harness between the main relay and purge solenoid valve terminal A
CAUSE
• Open circuit in the wiring harness between purge solenoid valve terminal B and PCM terminal 2AB
• Short to the power supply between purge solenoid valve terminal B and PCM terminal 2AB
• PCM malfunction

01-02–140
1871-1U-06B(01-02).fm 141 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0443 EVAP control system purge control valve circuit malfunction
MAIN RELAY PCM

PURGE SOLENOID VALVE

7
5 5 9 8
A B 2AB

01-02
6

PURGE SOLENOID VALVE PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 CLASSIFY OPEN CIRCUIT OR SHORT TO Yes Go to Step 5.
GROUND MALFUNCTION No Go to the next step.
• Disconnect the purge solenoid valve tube that
is connected to the intake manifold.
• Connect the vacuum pump to the purge
solenoid valve.
• Pump the vacuum pump several times and
stop.
• Wait a few seconds.
• Is the vacuum maintained?
4 INSPECT PASSAGE CONTROL OF PURGE Yes Repair or replace the wiring harness for a short to ground,
SOLENOID VALVE then go to Step 10.
• Turn the ignition switch off. No Replace the purge solenoid valve, then go to Step 10.
• Disconnect the purge solenoid valve connector.
• Pump the vacuum pump several times and wait
a few seconds.
• Is the vacuum maintained?
5 INSPECT PURGE SOLENOID VALVE Yes Repair or replace the terminal, then go to Step 10.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Inspect for poor connection (damaged/pulled-
out pins, corrosion, etc.).
• Is there any malfunction?
6 INSPECT PURGE SOLENOID VALVE Yes Go to the next step.
• Perform the purge solenoid valve inspection. No Replace the purge solenoid valve, then go to Step 10.
(See01-16-9 PURGE SOLENOID VALVE
INSPECTION[L3 WITH TC].)
• Is the purge solenoid valve normal?

01-02–141
1871-1U-06B(01-02).fm 142 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
7 INSPECT PURGE SOLENOID VALVE POWER Yes Go to the next step.
SUPPLY CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Turn ignition switch to the ON position (Engine then go to Step 10.
off).
• Measure the voltage between purge solenoid
valve connector terminal A and body ground.
• Is the voltage B+?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (damaged/pulled-
out pins, corrosion, etc.).
• Is there any malfunction?
9 INSPECT PURGE SOLENOID VALVE CONTROL Yes Repair or replace the wiring harness for a short to power
CIRCUIT supply, then go to the next step.
• Turn ignition switch to the ON position (Engine No Inspect for continuity between purge solenoid valve
off). terminal B (harness-side) and PCM terminal 2AB (harness-
• Measure voltage between purge solenoid valve side).
terminal B (harness-side) and body ground. • If there is continuity, go to the next step.
• Is the voltage B+? • If there is no continuity, repair or replace the wiring
harness for an open circuit, then go to the next step.
10 VERIFY TROUBLESHOOTING OF DTC P0443 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch off.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0446[L3 WITH TC]
id010239807700

DTC P0446 Change over valve (COV) (EVAP system leak detection pump) stuck close
• The PCM monitors the pump load current (EVAP line pressure), while the EVAP leak monitor is operating.
When the decrease in the pump load current is less than the specification after the reference current value
has been obtained, the PCM determines that the change over-valve (COV) in the EVAP system leak
detection pump has a malfunction.
Diagnostic support note
DETECTION • This is an intermittent monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• COV (in EVAP system leak detection pump.) malfunction
POSSIBLE
• Short to the power circuit between the EVAP system leak detection pump terminal C and PCM terminal 1V
CAUSE
• PCM malfunction

01-02–142
1871-1U-06B(01-02).fm 143 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0446 Change over valve (COV) (EVAP system leak detection pump) stuck close
MAIN RELAY EVAP SYSTEM LEAK PCM
DETECTION PUMP
3
A C 1V

01-02
M D 1AS

EVAP SYSTEM LEAK DETECTION PUMP PCM WIRING

WIRING HARNESS-SIDE CONNECTOR HARNESS-SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

A 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
C
B
D 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(EVAP system related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnostic according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, then go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 CHECK COV CONTROL (EVAP SYSTEM LEAK Yes Repair or replace the wiring harness, then go to Step 5.
DETECTION PUMP CIRCUIT FOR SHORT TO No Go to the next step.
POWER)
• Turn ignition switch to the ON position (engine
OFF).
• Disconnect the EVAP system leak detection
pump connector.
• Measure the voltage between EVAP system
leak detection pump connector terminal C
(wiring harness-side) and body ground.
• Is the voltage B+?
4 INSPECT COV (EVAP SYSTEM LEAK Yes Go to the next step.
DETECTION PUMP) No Replace the EVAP system leak detection pump, then go to
• Inspect the EVAP system leak detection pump. the next step.
(See01-16-7 EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK DETECTION PUMP
INSPECTION[L3 WITH TC].)
• Is the COV (EVAP system leak detection
pump) normal?

01-02–143
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 VERIFY TROUBLESHOOTING OF DTC P0446 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Turn the ignition switch to the ON position
(Engine off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the EVAP system test using the M-
MDS.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the same DTC present?

Note
• If the EVAP system test function is not
available, preform the following
procedure:
— Perform “EVAP System Repair
Verification Drive Mode”.
(See01-02-10 OBD-II DRIVE
MODE[L3 WITH TC])
— Is the PENDING CODE for this DTC
present?
6 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0455[L3 WITH TC]
id010239815500

DTC P0455 Evaporative emission control system leak detected (gross leak)
• PCM measures the pump load current (EVAP line pressure) when a specified period has passed after the
EVAP system is sealed when monitoring conditions are met. If the load does not reach the reference
current value within the specified period, the PCM determines that the EVAP system has a gross leak.
MONITORING CONDITION
— IG switch OFF
— IAT: 5— 35 °C {40— 95 °F}
— Battery voltage: 11— 20 V
— Atmospheric pressure: 72.2 kPa {542 mmHg, 21.3 inHg} or above
DETECTION — Fuel tank level: 15— 85%
CONDITION Diagnostic support note
• This is an intermittent monitor (Evaporative system monitor).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• DIAGNOSTIC MONITORING TEST RESULT is available.
• Purge solenoid valve malfunction
• EVAP system leak detection pump malfunction
• Loose, missing or detective fuel filler cap
POSSIBLE • Charcoal canister malfunction
CAUSE • Fuel tank malfunction
• Fuel tank misinstallation
• EVAP hose damaged or loose
• Poor connection or damaged vacuum hose

01-02–144
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Evaporative emission system related) been 01-02
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the appropriate DTC troubleshooting procedure.
STORED DTCS No Go to the next step.
• Turn the ignition switch off then to the ON
position (Engine off).
• Verify related PENDING CODE or stored
DTCs.
• Are DTCs P0443 and/or P0446 present?
4 CLASSIFY INTERMITTENT CONCERN OR Yes Go to the next step.
CONTINUOUS CONCERN No Intermittent concern exists. Inspect the purge solenoid
• Perform the evaporative system leak valve and the EVAP system leak detection pump circuit for
inspection. an intermittent concern.
(See01-03-78 ENGINE CONTROL SYSTEM (See01-03-76 INTERMITTENT CONCERN
OPERATION INSPECTION[L3 WITH TC].) TROUBLESHOOTING[L3 WITH TC].)
• Does test result fail?
5 INSPECT FUEL FILLER CAP Yes Go to the next step.
• Verify that the fuel-filler cap is neither No Retighten the fuel-filler cap or replace it if it is damaged.
disconnected nor loose or damaged. Go to Step 17.
• Is it normal?

Note
• When a fuel-filler cap other than an OEM
cap is attached, it is considered a
malfunction.
6 INSPECT IF PURGE SOLENOID VALVE IS Yes Go to the next step.
STUCK No Replace the purge solenoid valve, then go to Step 17.
• Inspect the purge solenoid valve.
• Is the purge solenoid valve normal?
7 INSPECT COV (EVAP SYTEM LEAK Yes Go to the next step.
DETECTION PUMP) No Replace the EVAP system leak detection pump, then go to
• Inspect the EVAP system leak detection pump. Step 17.
• Is the COV (EVAP leak detection pump)
normal?
8 DETERMINE IF EVAP CONTROL SYSTEM FOR Yes Repair or replace malfunctioning area, then go to Step 17.
LEAKAGE OR BLOCKAGE No Go to the next step.

Note
• If the evaporative emission tester is not
available, then go to the next step.

• Perform the Evaporative System Leak

Inspection.
• Does the system test fail?
9 INSPECT LEAKAGE OF CHARCOAL CANISTER Yes Go to the Step 13.
TO FUEL PUMP No Go to the next step.
• Disconnect the fuel tank side vacuum hose at
the charcoal canister.
• Apply vacuum 1.7 KPa {13 mmHg, 0.5 inHg}
to the disconnected vacuum hose using a
vacuum pump.
• Does the vacuum hold for a minimum of 2
min?

01-02–145
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
10 VERIFY POOR CONNECTION OF VACUUM Yes Connect the vacuum hose correctly, then go to Step 17.
HOSE No Go to the next step.
• Verify the vacuum hose installation condition
between the fuel tank and the charcoal
canister.
• Is a poor connection detected?
11 INSPECT FUEL TANK INSTALLATION Yes Go to the next step.
• Remove the fuel tank. No Repair or replace the fuel tank or sealing, then go to Step
• Visually inspect for damage, insufficient sealing 17.
or poorly installed fuel pump unit.
• Is it normal?
12 INSPECT FUEL TANK Yes Replace the vacuum hose from the charcoal canister to the
• Inspect the fuel tank. fuel tank, then go to the next step.
• Is it normal? No Replace the fuel tank, then go to the next step.
13 INSPECT LEAKAGE FROM CHARCOAL Yes Go to the Step 17.
CANISTER TO PURGE SOLENOID VALVE No Go to the next step.
• Disconnect the purge solenoid valve side
vacuum hose at the charcoal canister.
• Apply vacuum 3.3 KPa {25 mmHg, 1.0 inHg}
to the disconnected vacuum hose using a
vacuum pump.
• Does the vacuum hold for a minimum of 2
min?
14 VERIFY POOR CONNECTION OF VACUUM Yes Connect the vacuum hose correctly, then go to Step 17.
HOSE No Go to the next step.
• Verify the vacuum hose installation condition
between the purge solenoid valve and the
charcoal canister.
• Is a poor connection detected?
15 INSPECT PURGE SOLENOID VALVE FOR Yes Go to the next step.
DAMAGE OR AIR LEAKAGE No Replace the purge solenoid valve, then go to Step 17.
• Remove the purge solenoid valve and inspect
for damage and air leakage.
• Is it normal?
16 INSPECT CHARCOAL CANISTER Yes Replace the vacuum hose from the charcoal canister to the
• Remove the charcoal canister and inspect for purge solenoid valve, then go to the next step.
clogging, damage and pinholes. No Replace the charcoal canister, then go to the next step.
• Is it normal?
17 PERFORM LEAK INSPECTION Yes Leakage still exists. Locate the leak point and repair.
• Connect all disconnected connectors. Then go to the next step.
• Perform the evaporative system leak No Go to the next step
inspection. (See01-03-78 ENGINE CONTROL
SYSTEM OPERATION INSPECTION[L3 WITH
TC].)
• Does the test result fail?
18 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–146
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0456[L3 WITH TC]
id010239807900

DTC P0456 Evaporative emission control system leak detected (very small leak)
• PCM measures the pump load current (EVAP line pressure) when a specified period has passed after the
EVAP system is sealed when monitoring conditions are met. If the load does not reach the reference load
value or the rate of the load increase is lower than the specification within a specified period, the PCM
determines that the EVAP system has a very small leak.
MONITORING CONDITION 01-02
— IG switch OFF
— IAT: 5— 35 °C {40— 95 °F}
— Battery voltage: 11— 20 V
— Atmospheric pressure: 72.2 kPa {542 mmHg, 21.3 inHg} or above
DETECTION
— Fuel tank level: 15— 85%
CONDITION
Diagnostic support note
• This is an intermittent monitor (Evaporative system monitor).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• DIAGNOSTIC MONITORING TEST RESULT is available.
• Purge solenoid valve malfunction
• EVAP system leak detection pump malfunction
• Charcoal canister malfunction
POSSIBLE • Fuel cap malfunction
CAUSE • Fuel tank malfunction
• Fuel pump unit poor seal
• EVAP hose damaged or loose
• EVAP pipe damaged

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Evaporative emission system related) been
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the appropriate DTC inspection.
STORED DTCS No Go to the next step.
• Turn the ignition switch off then ON position
(Engine off).
• Verify related PENDING CODE or stored
DTCs.
• Are other DTC present?
4 CLASSIFY INTERMITTENT CONCERN OR Yes Go to the next step.
CONTINUOUS CONCERN No Intermittent concern exists. Inspect the purge solenoid
• Perform the evaporative system leak valve and the EVAP system leak detection pump circuit for
inspection. an intermittent concern.
(See01-03-78 ENGINE CONTROL SYSTEM (See01-03-76 INTERMITTENT CONCERN
OPERATION INSPECTION[L3 WITH TC].) TROUBLESHOOTING[L3 WITH TC].)
• Does the system test result fail?

01-02–147
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 LOCATE LEAK POINT Yes Repair the leakage or replace the part, then go to Step 10.
• Check for leakage for the following using the No Go to the next step.
Evaporative Emission Tester
— Charcoal canister
— Catch tank
— Fuel filler cap
— EVAP hoses and pipes
— Fuel tank
• Is leakage found?
6 INSPECT PURGE SOLENOID VALVE Yes Go to the next step.
• Inspect if the purge solenoid valve is stuck No Replace the purge solenoid valve, then go to Step 10.
closed.
(See01-16-9 PURGE SOLENOID VALVE
INSPECTION[L3 WITH TC].)
• Is the purge solenoid valve normal?
7 INSPECT EVAP SYSTEM LEAK DETECTION Yes Go to Step 9.
PUMP No Go to the next step.
• Connect all disconnected connectors and
hoses.
• Place a clamp on the EVAP system leak
detection pump hose between the EVAP
system leak detection pump and the air filter.
• Perform the evaporative system leak
inspection. (See01-03-78 ENGINE CONTROL
SYSTEM OPERATION INSPECTION[L3 WITH
TC].)
• Does the test result fail?
8 CONFIRM EVAP SYSTEM LEAK DETECTION Yes Replace the EVAP system leak detection pump, then go to
PUMP LEAKAGE Step 10.
• Remove the clamp. No Go to the next step.
• Perform the evaporative system leak
inspection. (See01-03-78 ENGINE CONTROL
SYSTEM OPERATION INSPECTION[L3 WITH
TC].)
• Does the test result fail?
9 INSPECT FUEL PUMP UNIT INSTALLATION Yes Go to the next step.
• Remove the fuel tank. No Repair or replace the fuel tank or sealing, then go to the
• Visually inspect for damage, insufficient sealing next step.
or a poorly installed pump unit.
• Is it normal?
10 PERFORM LEAK INSPECTION Yes Leakage still exists. Locate the leak point and repair.
• Connect all disconnected connectors and Then go to the next step.
hoses. No Go to next step
• Perform the evaporative system leak
inspection. (See01-03-78 ENGINE CONTROL
SYSTEM OPERATION INSPECTION[L3 WITH
TC].)
• Does the test result fail?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–148
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0461[L3 WITH TC]
id010239808000

DTC P0461 Fuel gauge sender unit circuit range/performance

• PCM monitors the fuel level voltage difference before and after the PCM-calculated fuel consumption has
reached 25 L {26.4 US qt., 22 Imp qt.}. If the difference is 5% less than the PCM-calculated fuel
consumption, the PCM determines that the fuel gauge sender unit range/performance is in error.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM). 01-02
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Fuel gauge sender unit malfunction or substandard performance
POSSIBLE
• Instrument cluster malfunction
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FUEL GAUGE SENDER UNIT Yes Replace the PCM, then go to the next step.
• Turn the ignition switch off. No Repair or replace the fuel gauge sender unit, then go to the
• Inspect the fuel gauge sender unit. next step.
(See09-22-14 FUEL GAUGE SENDER UNIT
INSPECTION.)
• Is the fuel gauge sender unit normal?
4 INSPECT INSTRUMENT CLUSTER Yes Repair or replace the suspected malfunction, then go to the
• Perform the “INSTRUMENT CLUSTER INPUT/ next step.
OUTPUT CHECK MODE” procedure. No Go to the next step.
(See 09-22-5 INSTRUMENT CLUSTER
INPUT/OUTPUT CHECK MODE.)
• Is there any malfunction?
5 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–149
1871-1U-06B(01-02).fm 150 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0462[L3 WITH TC]
id010239808100

DTC P0462 Fuel gauge sender unit circuit low input

• The PCM monitors the signals of the fuel level and fuel gauge sender unit output voltage from the
instrument cluster. If the PCM detects that the fuel level or fuel gauge sender unit output voltage is too low,
the PCM determines that the fuel gauge sender unit circuit has a malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects above malfunction condition in two consecutive drive cycles or in one
drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Instrument cluster malfunction
POSSIBLE
• Fuel gauge sender unit malfunction
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FUEL GAUGE SENDER UNIT Yes Replace the PCM, then go to the next step.
• Turn the ignition switch off. No Repair or replace the fuel gauge sender unit, then go to the
• Inspect the fuel gauge sender unit. next step.
(See09-22-14 FUEL GAUGE SENDER UNIT
INSPECTION.)
• Is the fuel gauge sender unit normal?
4 INSPECT INSTRUMENT CLUSTER Yes Repair or replace the suspected malfunction, then go to the
• Perform the “INSTRUMENT CLUSTER INPUT/ next step.
OUTPUT CHECK MODE” procedure. No Go to the next step.
(See 09-22-5 INSTRUMENT CLUSTER
INPUT/OUTPUT CHECK MODE.)
• Is there any malfunction?
5 VERIFY TROUBLESHOOTING OF DTC P0462 Yes Replace PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the memory using the M-
MDS.
• Start the engine.
• Is the PENDING CODE for this DTC present?
6 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See 01-02-13 DTC TABLE[L3 WITH TC].)
(See 01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–150
1871-1U-06B(01-02).fm 151 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0463[L3 WITH TC]
id010239808200

DTC P0463 Fuel gauge sender unit circuit high input

• The PCM monitors the signals of the fuel level and fuel gauge sender unit output voltage from the
instrument cluster. If the PCM detects that the fuel level or fuel gauge sender unit output voltage is too high,
the PCM determines that the fuel gauge sender unit circuit has a malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM). 01-02
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Instrument cluster malfunction
POSSIBLE
• Fuel gauge sender unit malfunction
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FUEL GAUGE SENDER UNIT Yes Replace the PCM, then go to the next step.
• Turn the ignition switch off. No Repair or replace the fuel gauge sender unit, then go to the
• Inspect the fuel gauge sender unit. next step.
(See09-22-14 FUEL GAUGE SENDER UNIT
INSPECTION.)
• Is the fuel gauge sender unit normal?
4 INSPECT INSTRUMENT CLUSTER Yes Repair or replace the suspected malfunction, then go to the
• Perform “INSTRUMENT CLUSTER INPUT/ next step.
OUTPUT CHECK MODE” procedure. No Go to the next step.
(See 09-22-5 INSTRUMENT CLUSTER
INPUT/OUTPUT CHECK MODE.)
• Is there any malfunction?
5 VERIFY TROUBLESHOOTING OF DTC P0463 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the memory using the M-
MDS.
• Start the engine.
• Is the PENDING CODE for this DTC present?
6 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See 01-02-13 DTC TABLE[L3 WITH TC].)
(See 01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–151
1871-1U-06B(01-02).fm 152 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0480[L3 WITH TC]
id010239807400

DTC P0480 Fan control circuit problem

• The PCM monitors the input voltage from the fan control module No.1. If the voltage remains low or high,
the PCM determines that the fan control circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• The DTC is stored in the PCM memory.
• Fan control module No.1 malfunction
• Connector or terminal malfunction
• Short to the power supply in the wiring harness between fan control module No.1 terminal 1B and PCM
POSSIBLE
terminal 1AE
CAUSE
• Short to ground in the wiring harness between fan control module No.1 terminal 1B and PCM terminal 1AE
• Open circuit in the wiring harness between fan control module No.1 terminal 1B and PCM terminal 1AE
• PCM malfunction
FROM COOLING FAN FUSE

FAN CONTROL MODULE No.1 PCM

1A

3 4 5 6
8 1B 1AE
7

1C

FAN CONTROL MODULE No.1

WIRING HARNESS-SIDE CONNECTOR PCM
WIRING HARNESS-SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1C 1B 1A 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C

1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

01-02–152
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FAN CONTROL MODULE No.1 Yes Repair or replace the terminal, then go to Step 9.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the fan control module No.1
connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT FAN CONTROL MODULE No.1 Yes Repair or replace the wiring harness for an open circuit,
SIGNAL CIRCUIT FOR SHORT TO POWER then go to Step 9.
SUPPLY No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Measure the voltage between fan control
module No.1 terminal 1B (wiring harness-side)
and body ground.
• Is the voltage B+?
5 INSPECT FAN CONTROL MODULE No.1 Yes Repair or replace the wiring harness for an open circuit,
SIGNAL CIRCUIT FOR SHORT TO GROUND then go to Step 9.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between fan control
module No.1 terminal 1B (wiring harness-side)
and body ground.
• Is there continuity?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 INSPECT FAN CONTROL module No.1 SIGNAL Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Inspect for continuity between fan control then go to Step 9.
module No.1 terminal 1B (wiring harness-side)
and PCM terminal 1AE.
• Is there continuity?
8 INSPECT FAN CONTROL module No.1 Yes Go to the next step.
• Perform the fan control module No.1 No Replace the fan control module No.1, then go to the next
inspection. step.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the fan control module No.1 normal?
9 VERIFY TROUBLESHOOTING OF DTC P0480 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Clear the DTC from the PCM memory using TC].)
the M-MDS. No Go to the next step.
• Start the engine.
• Turn A/C switch to ON.
• Is the same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
01-02–153
1871-1U-06B(01-02).fm 154 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0481[L3 WITH TC]
id010239815200

DTC P0481 Fan control circuit problem

• The PCM monitors the input voltage from the fan control module No.2. If the voltage remains low or high,
the PCM determines that the fan control circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• The DTC is stored in the PCM memory.
• Fan control module No.2 malfunction
• Connector or terminal malfunction
• Short to the power supply in the wiring harness between fan control module No.2 terminal 2B and PCM
POSSIBLE
terminal 1R
CAUSE
• Short to ground in the wiring harness between fan control module No.2 terminal 2B and PCM terminal 1R
• Open circuit in the wiring harness between fan control module No.2 terminal 2B and PCM terminal 1R
• PCM malfunction
FROM COOLING FAN FUSE

FAN CONTROL MODULE No.2 PCM

2A

3 4 5 6
8 2B 1R
7

2C

FAN CONTROL MODULE No.2

WIRING HARNESS-SIDE CONNECTOR PCM
WIRING HARNESS-SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
2C 2B 2A
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FAN CONTROL MODULE No.2 Yes Repair or replace the terminal, then go to Step 9.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the fan control module No.2
connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?

01-02–154
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
STEP INSPECTION ACTION
4 INSPECT FAN CONTROL MODULE No.2 Yes Repair or replace the wiring harness for an open circuit,
SIGNAL CIRCUIT FOR SHORT TO POWER then go to Step 9.
SUPPLY No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Measure the voltage between fan control
module No.2 terminal 2B (wiring harness-side) 01-02
and body ground.
• Is the voltage B+?
5 INSPECT FAN CONTROL MODULE No.2 Yes Repair or replace the wiring harness for an open circuit,
SIGNAL CIRCUIT FOR SHORT TO GROUND then go to Step 9.
• Turn the ignition switch off. No Go to the next step.
• Inspect for continuity between fan control
module No.2 terminal 2B (wiring harness-side)
and body ground.
• Is there continuity?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 INSPECT FAN CONTROL MODULE No.2 Yes Go to the next step.
SIGNAL CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Inspect for continuity between fan control then go to Step 9.
module No.2 terminal 2B (wiring harness-side)
and PCM terminal 1R.
• Is there continuity?
8 INSPECT FAN CONTROL MODULE No.2 Yes Go to the next step.
• Perform the fan control module No.2 No Replace the fan control module No.2, then go to the next
inspection. step.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the fan control module No.2 normal?
9 VERIFY TROUBLESHOOTING OF DTC P0481 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Clear the DTC from the PCM memory using TC].)
the M-MDS. No Go to the next step.
• Start the engine.
• Turn A/C switch to ON.
• Is the same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P050A[L3 WITH TC]
WM: DTC P05XX

id010239800000

DTC P050A Cold start idle air control system performance

• Actual idle speed is lower than expected by 100 rpm for 8.4 s when target idle speed is above 0 rpm at
cold start or ignition retard value is above 8.9 deg.CA.

Note
• If atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or intake air temperature is
below -10 °C {14 °F}, the PCM cancels diagnosis of P0506.
DETECTION
CONDITION
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.

01-02–155
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
DTC P050A Cold start idle air control system performance
• The air into the fuel line by exchange or re-installation
• Electronic throttle control system malfunction
POSSIBLE
• Throttle valve stuck or blockage
CAUSE • Air suction in intake air system
• PCM malfunction
Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and diagnostic
HAVE BEEN RECORDED monitoring test results on the repair order, then go to the
• Have FREEZE FRAME DATA and next step.
DIAGNOSTIC MONITORING TEST RESULTS
(CCM related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for DTC on FREEZE
• Is P050A on FREEZE FRAME DATA? FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)
4 INSPECT FUEL SYSTEM Yes Perform the air bleeding of fuel system.
• Were any exchange or re-installation of fuel • Start the engine and warm it up until engine speed is
system performed just before the P050A stable then go to the next step.
stored? No Go to Step 6.
5 CONFIRM THE PENDING CODE Yes Go to the next step.
• Clear the DTC from the PCM memory using No Go to Step 9.
the M-MDS.
• Cool down the engine still ECT below 30 °C {86
°F}.
• Perform the cold start.
• Is the PENDING CODE for this DTC present?
6 CHECK AIR SUCTION IN INTAKE AIR SYSTEM Yes Repair or replace malfunctioning part, then go to Step 9.
• Start the engine. No Go to the next step.
• Check air suction between MAF sensor and
intake manifold.
• Is there any air suction in the intake air
system?
7 VERIFY ELECTRONIC THROTTLE CONTROL Yes Go to the next step.
SYSTEM OPERATION No Repair or replace malfunctioning part according to
• Perform the Electronic Throttle Control System inspection result.
Operation Inspection. Then go to Step 9.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC],
Electronic Throttle Control System Inspection.)
• Does the electronic throttle control system
operate properly?
8 VERIFY THROTTLE VALVE Yes Go to the next step.
• Turn the ignition switch off. No Clean the throttle valve and retest.
• Remove the throttle valve with connector If the problem does not resolve, replace the throttle body.
connected. Then go to the next step.
• Access ETC_DSD PID using the M-MDS.
• Turn the ignition switch to ON position (Engine
off).
• Move the throttle valve using the ETC_DSD
PID simulation function.
• Dose the throttle valve move smoothly?
9 VERIFY TROUBLESHOOTING OF DTC P050A Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear DTC from the PCM memory using the M-
MDS.
• Perform the KOER self-test using the M-MDS.
(See01-02-13 DTC TABLE[L3 WITH TC].)
• Is the PENDING CODE for this DTC present?

01-02–156 Revised 10/2006 (Ref. No. R144/06)

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
STEP INSPECTION ACTION
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.(See01-02-13
• Perform the AFTER REPAIR PROCEDURE. DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Go to the next step.
PROCEDURE[L3 WITH TC].)
• Are any DTC present?
End Of Sie

DTC P050B[L3 WITH TC] 01-02

id010239799900

DTC P050B Cold start ignition timing performance

• The PCM monitors actual ignition timing using the CKP sensor while electronic spark advance control fast
idle correction operating. If the ignition timing is out of specified range, the PCM determines that the ignition
timing at cold condition has performance problem.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or
in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.
• The air into the fuel line by exchange or re-installation
• Damaged CKP sensor
POSSIBLE • Damaged CMP sensor
CAUSE • Damaged or chipped CKP sensor pulse wheel
• Damaged or chipped CMP sensor pulse wheel
• PCM malfunction
Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and diagnostic
HAVE BEEN RECORDED monitoring test results on the repair order, then go to the
• Have FREEZE FRAME DATA and next step.
DIAGNOSTIC MONITORING TEST RESULTS
(CCM related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for DTC on FREEZE
• Is P050B on FREEZE FRAME DATA? FRAME DATA.
(See01-02-13 DTC TABLE[L3 WITH TC].)
4 INSPECT FUEL SYSTEM Yes Perform the air bleeding of fuel system.
• Were any exchange or re-installation of fuel • Start the engine and warm it up until engine speed is
system performed just before the P050B stable then go to the next step.
stored? No Go to Step 6.
5 CONFIRM THE PENDING CODE Yes Go to the next step.
• Clear the DTC from the PCM memory using No Go to Step 10.
the M-MDS.
• Cool down the engine still ECT below 30 °C {86
°F}.
• Perform the cold start.
• Is the PENDING CODE for this DTC present?
6 VISUALLY INSPECT CKP SENSOR AND PULSE Yes Replace the suspected part, then go to Step 10.
WHEEL No Go to the next step.
• Visually inspect for CKP sensor and pulse
wheel.
• Is there any damage or chip on CKP sensor
and pulse wheel?
7 INSPECT CKP SENSOR Yes Go to the next step.
• Inspect CKP sensor. No Replace the CKP sensor, then go to Step 10.
(See01-40-43 CRANKSHAFT POSITION
(CKP) SENSOR INSPECTION[L3 WITH TC].)
• Is the CKP sensor normal?

Revised 10/2006 (Ref. No. R144/06) 01-02–157

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
STEP INSPECTION ACTION
8 VISUALLY INSPECT CMP SENSOR AND PULSE Yes Replace the suspected part, then go to Step 10.
WHEEL No Go to the next step.
• Visually inspect for CMP sensor and pulse
wheel.
• Is there any damage or chip on CMP sensor
and pulse wheel?
9 INSPECT CMP SENSOR Yes Go to the next step.
• Inspect CMP sensor. No Replace the CMP sensor, then go to the next step.
(See01-40-45 CAMSHAFT POSITION (CMP)
SENSOR INSPECTION[L3 WITH TC].)
• Is the CMP sensor normal?
10 VERIFY TROUBLESHOOTING OF DTC P050B Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear DTC from the PCM memory using the M-
MDS.
• Perform the KOER self-test using the M-MDS.
(See01-02-13 DTC TABLE[L3 WITH TC].)
• Is the PENDING CODE for this DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the AFTER REPAIR PROCEDURE. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTC present?
End Of Sie

DTC P0500[L3 WITH TC]

id010239808400

DTC P0500 Vehicle speed sensor (VSS) circuit malfunction

• Wheel speed signal from the DSC HU/CM is below 3.7 km/h {2.3 mph} when the following conditions are
met:
— Neutral switch and CPP switch are off
— Load is above 40%
— Engine speed is 2,000 rpm or above
— Brake switch is OFF
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Front ABS wheel-speed sensor malfunction
POSSIBLE • DSC malfunction
CAUSE • Connector or terminal malfunction
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME PID DATA on the repair order,
• Has the FREEZE FRAME PID DATA been then go to the next step.
recorded?
2 VERIFY RELATED SERVICE INFORMATION Yes Perform the repair or diagnosis according to available
AVAILABILITY Service Information.
• Check for related Service Information • If the vehicle is not repaired, go to the next step.
availability. No Go to the next step.
• Is any related Service Information available?
3 VERIFY STORED DTC IN DSC HU/CM Yes Go to the appropriate DTC inspection.
• Turn the ignition switch to the ON position (See04-02-3 ON-BOARD DIAGNOSIS.)
(Engine off). No Go to the next step.
• Verify stored DTCs in the DSC HU/CM.
(See04-02-3 ON-BOARD DIAGNOSIS.)
• Are DTCs stored?

01-02–158
1871-1U-06B(01-02).fm 159 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 VERIFY TROUBLESHOOTING OF DTC P0500 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using 01-02
the M-MDS.
• Warm up the engine.
• Access the RPM and LOAD PID using the M-
MDS.
• Drive the vehicle under the following conditions
for 18s.
— Engine speed: 2,000 rpm or above
— Gear: Gear is in other than NEUTRAL
— Load: 40% or above
• Is the PENDING CODE for this DTC present?
5 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0505[L3 WITH TC]
id010239808500

DTC P0505 IAC system problem

DETECTION
• The PCM cannot control idle speed toward the target idle speed during the KOER self test.
CONDITION
• Air cleaner element clogged
• Air intake passage clogged
• A/C relay control circuit malfunction
POSSIBLE
• Generator control circuit malfunction
CAUSE
• Low engine compression (Over capacity of blow-by gas)
• Electronic throttle control system improper operation
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
2 VERIFY RELATED PENDING OR STORED DTCs Yes Perform the applicable DTC troubleshooting.
• Turn the ignition switch off then to the ON (See01-02-13 DTC TABLE[L3 WITH TC].)
position. (Engine off) No Go to the next step.
• Verify pending code or stored DTCs using the
M-MDS.
• Are DTCs P0506, P0507, P0638, P2100,
P2101, P2102, P2103, P2108, or P2119
present?
3 VERIFY ELECTRONIC THROTTLE CONTROL Yes Go to the next step.
SYSTEM OPERATION No Repair or replace the malfunctioning part according to the
• Perform the TP sweep inspection. inspection result.
(See01-03-78 ENGINE CONTROL SYSTEM Then go to Step 9.
OPERATION INSPECTION[L3 WITH TC].)
• Does the electronic throttle control system
work properly?

01-02–159
1871-1U-06B(01-02).fm 160 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT A/C MAGNETIC CLUTCH OPERATION Yes Go to “A/C ALWAYS ON / A/C COMPRESSOR RUNS
CONTINUOUSLY.” of ENGINE SYMPTOM
Note TROUBLESHOOTING then go to Step 9.
• The following test should be performed for (See01-03-5 ENGINE SYMPTOM
vehicles with A/C. Go to the next step for TROUBLESHOOTING[L3 WITH TC].)
vehicles without A/C No Go to the next step.

• Turn the fan switch off.

• Is the magnetic clutch still on?
5 INSPECT GENERATOR CONTROL CIRCUIT Yes Go to the next step.
MALFUNCTION No Repair for a short to the power supply in the generator
• Apply electrical load. control circuit, then go to Step 9.
• Does the engine speed increase?
6 INSPECT AIR CLEANER ELEMENT Yes Clean or replace the air cleaner element, then go to Step 9.
• Remove the air cleaner element with the No Go to the next step.
engine running.
• Does the engine speed increase?
7 INSPECT THROTTLE BODY PASSAGE Yes Clean or replace the throttle body passage, then go to Step
• Is the throttle body clogged? 9.
No Go to the next step.
8 INSPECT ENGINE COMPRESSION Yes Go to the next step.
• Inspect the engine compression. No Overhaul the engine, then go to the next step.
(See01-10-9 COMPRESSION
INSPECTION[L3 WITH TC].)
• Is the engine compression normal?
9 VERIFY TROUBLESHOOTING OF DTC P0505 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC using the M-MDS.
• Perform the KOER Self-Test.
• Is the same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0506[L3 WITH TC]
id010239808600

DTC P0506 Idle control system RPM lower than expected

• Actual idle speed is lower than expected by 100 rpm for 14 s when the brake pedal is depressed (brake
switch is on) and the steering wheel is held straight ahead (power steering pressure switch is off).

Note
• If the atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or the intake air temperature
is below –10 °C {14 °F}, the PCM cancels the diagnosis of P0506.
DETECTION
CONDITION Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Electronic throttle control system malfunction
• Air cleaner element clogged
• Air intake passage clogged
POSSIBLE • A/C relay control circuit malfunction
CAUSE • Generator malfunction
• Purge solenoid valve malfunction
• Low engine compression (Over capacity of blow-by gas)
• PCM malfunction

01-02–160
1871-1U-06B(01-02).fm 161 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED SERVICE INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, then go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING OR STORED Yes Repair the applicable DTCs.
DTCS (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn ignition switch to OFF, then ON (Engine No Go to the next step.
off).
• Verify pending code or stored DTCs using the
M-MDS.
• Are other DTCs present?
4 INSPECT A/C MAGNET CLUTCH OPERATION Yes Refer to “A/C is always on or A/C compressor runs
• Turn the blower motor switch off. continuously.” of ENGINE SYMPTOM
• Is the magnet clutch still on? TROUBLESHOOTING, then go to Step 11.
(See01-03-69 NO.24 A/C IS ALWAYS ON OR A/C
COMPRESSOR RUNS CONTINUOUSLY[L3 WITH TC].)
No Go to the next step.
5 INSPECT ELECTRONIC THROTTLE CONTROL Yes Go to the next step.
SYSTEM MALFUNCTION No Replace the necessary parts, then go to Step 11.
• Inspect the following parts:
— APP sensor
(See01-40-33 ACCELERATOR PEDAL
POSITION (APP) SENSOR
INSPECTION[L3 WITH TC].)
— TP sensor
(See01-40-32 THROTTLE POSITION (TP)
SENSOR INSPECTION[L3 WITH TC].)
• Are they normal?
6 INSPECT PURGE SOLENOID VALVE Yes Go to the next step.
MALFUNCTION No Replace the purge solenoid valve, then go to Step 11.
• Perform the purge solenoid valve inspection.
(See01-16-9 PURGE SOLENOID VALVE
INSPECTION[L3 WITH TC].)
• Is the purge solenoid valve normal?
7 INSPECT AIR CLEANER ELEMENT Yes Replace the air cleaner element, then go to Step 11.
• Remove the air cleaner element with the No Go to the next step.
engine running.
• Does the engine speed increase?
8 INSPECT THROTTLE BODY PASSAGE Yes Clean or replace the throttle body passage, then go to Step
• Is the throttle body clogged? 11.
No Go to the next step.
9 INSPECT ENGINE COMPRESSION Yes Go to the next step.
• Inspect the engine compression. No Overhaul the engine, then go to Step 11.
(See01-10-9 COMPRESSION
INSPECTION[L3 WITH TC].)
• Is the engine compression normal?
10 INSPECT GENERATOR Yes Go to the next step.
• Perform the generator inspection. No Repair or replace the related part, then go to the next step.
(See01-17-6 GENERATOR INSPECTION[L3
WITH TC].)
• Is the generator normal?

01-02–161
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
11 VERIFY TROUBLESHOOTING OF DTC P0506 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Start the engine.
• Clear the DTC from the PCM memory using
the M-MDS.
• Depress the brake pedal for 14 s or more.
• Is PENDING CODE for this DTC present?
12 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0507[L3 WITH TC]
id010239808700

DTC P0507 Idle control system RPM higher than expected

• Actual idle speed is higher than expected by 200 rpm for 14 s when the brake pedal is depressed (brake
switch is on) and steering wheel is held straight ahead (power steering pressure switch is off).

Note
• If the atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or the intake air temperature
is below –10 °C {14 °F}, the PCM cancels diagnosis of P0507.
DETECTION
CONDITION
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Electronic throttle control system malfunction
POSSIBLE
• Vacuum hose misconnection
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED SERVICE INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, then go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING OR STORED Yes Repair applicable DTCs.
DTCS (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn ignition switch to off, then ON position No Go to the next step.
(Engine off).
• Verify pending code or stored DTCs using the
M-MDS.
• Are other DTCs present?
4 INSPECT VACUUM HOSE CONNECTION Yes Go to the next step.
• Are the vacuum hoses connecting accurately? No Reconnect the vacuum hoses correctly, then go to step 6.
(See01-13-4 VACUUM HOSE ROUTING
DIAGRAM[L3 WITH TC].)

01-02–162
1871-1U-06B(01-02).fm 163 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 INSPECT ELECTRONIC THROTTLE CONTROL Yes Go to the next step.
SYSTEM MALFUNCTION No Replace the necessary parts, then go to the next step.
• Inspect the following parts:
— APP sensor
(See01-40-33 ACCELERATOR PEDAL
POSITION (APP) SENSOR
INSPECTION[L3 WITH TC].) 01-02
— TP sensor
(See01-40-32 THROTTLE POSITION (TP)
SENSOR INSPECTION[L3 WITH TC].)
• Are they normal?
6 VERIFY TROUBLESHOOTING OF DTC P0507 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Start the engine.
• Clear the DTC from the PCM memory using
the M-MDS.
• Depress the brake pedal for 14 s or more.
• Is the PENDING CODE for this DTC present?
7 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–163
1871-1U-06B(01-02).fm 164 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0550[L3 WITH TC]
id010239808800

DTC P0550 PSP switch circuit malfunction

• The PCM monitors the PSP switch signal, If the input voltage is low voltage (switch stays on) for 1 min.
when the VSS is above 60.0 km/h {37.4 mph} and the ECT is above 60 °C {140 °F}, the PCM determines
that the PSP switch circuit has a malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• PSP switch malfunction
• Connector or terminal malfunction
POSSIBLE
• Short to ground in the wiring harness between the PSP switch terminal and PCM terminal 2T
CAUSE
• Open circuit in the wiring harness between the PSP switch terminal and PCM terminal 2T
• PCM malfunction
PCM

5 7 6
2T
3
A

PSP SWITCH 4

PSP SWITCH PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair formation availability. No Go to the next step.
• Is any related repair information available?

01-02–164
1871-1U-06B(01-02).fm 165 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT PSP CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 8.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PSP connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction? 01-02
4 INSPECT PSP SWITCH Yes Go to the next step.
• Perform the PSP switch inspection. No Replace the PSP switch, then go to Step 8.
(See01-40-22 POWER STEERING
PRESSURE (PSP) SWITCH INSPECTION[L3
WITH TC].)
• Is the PSP switch normal?
5 INSPECT PSP SWITCH SIGNAL CIRCUIT FOR Yes Repair or replace the wiring harness for a short to ground,
SHORT TO GROUND then go to Step 8.
• Disconnect the PCM connector. No Go to the next step.
• Inspect for continuity between the PSP switch
terminal (harness-side) and body ground.
• Is there continuity?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to Step 8.
CONNECTION No Go to the next step.
• Turn ignition switch to OFF
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 INSPECT SIGNAL CIRCUIT MALFUNCTION Yes Repair or replace the wiring harness, then go to the next
FOR OPEN CIRCUIT step.
• Inspect for continuity between PSP terminal A No Go to the next step.
(harness-side) and PCM terminal 2T (harness-
side).
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0550 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Start the engine.
• Clear the DTC from the PCM memory using
the M-MDS.
• Drive the vehicle above 60 km/h {37.3 mph}
for1 min.
• Verify that the ECT PID is above 60 °C {140
°F} using the M-MDS.
• Is the PENDING CODE for this DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–165
1871-1U-06B(01-02).fm 166 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0564[L3 WITH TC]
id010239808900

DTC P0564 Cruise control switch circuit malfunction

• The PCM monitors the cruise control switch signal. If the PCM detects that any one of following switches
(Main, CANCEL, SET/COAST, RESUME/ACCEL) remains on for 2 min, the PCM determines that the
cruise control switch circuit has a malfunction.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• DTCs are stored in PCM memory.
• Cruise control switch malfunction
• Connector or terminal malfunction
POSSIBLE
• Short to power circuit in wiring harness from cruise control switch terminal 2and PCM terminal 1AQ
CAUSE
• Short to ground circuit in wiring harness from cruise control switch terminal 2and PCM terminal 1AQ
• PCM malfunction
PCM

CRUISE CONTROL SWITCH

5 3 4
2 1AQ

PCM
CRUISE CONTROL SWITCH WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR
1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

8 7 5 4 3 2 1 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C

1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

01-02–166
1871-1U-06B(01-02).fm 167 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
2 INSPECT CRUISE CONTROL SWITCH Yes Repair or the replace the terminal, then go to Step 6. 01-02
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
3 INSPECT CRUISE CONTROL SWITCH SIGNAL Yes Repair or replace for a short to ground, then go to Step 6.
CIRCUIT FOR SHORT TO GROUND No Go to the next step.
• Disconnect the cruise control switch and PCM
connectors.
• Inspect for continuity between cruise control
switch terminal 2 (wiring harness-side) and
body ground.
• Is there continuity?
4 INSPECT CRUISE CONTROL SWITCH SIGNAL Yes Go to the next step.
CIRCUIT FOR SHORT TO POWER No Repair or replace for a short to the power supply, then go to
• Turn the ignition switch to the ON position Step 6.
(Engine off).
• Inspect the voltage between cruise control
switch terminal 2 (wiring harness-side) and
body ground.
• Is the voltage below 1.0 V?
5 INSPECT CRUISE CONTROL SWITCH Yes Go to the next step.
OPERATION No Replace the cruise control switch, then go to the next step.
• Inspect the cruise control switch.
(See01-20-1 CRUISE CONTROL SWITCH
INSPECTION[L3 WITH TC].)
• Is the cruise control switch normal?
6 VERIFY TROUBLESHOOTING OF P0564 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Drive the vehicle using cruise control for 2 min.
or more.
• Is the same DTC present?
7 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–167
1871-1U-06B(01-02).fm 168 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0571[L3 WITH TC]
id010239809000

DTC P0571 Brake switch circuit problem

• The PCM monitors the change in the input voltage for brake switch No.1 and No.2. If the PCM detects that
both brake switches No.1 and No.2 remain on or off for 15 s, it determines that the brake switch circuit has
a malfunction.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• DTCs are stored in PCM memory.
• Brake switch malfunction
• Open circuit between brake switch terminal A and PCM terminal 1AF
POSSIBLE • Open circuit between brake switch terminal C and body ground
CAUSE • Short to the power between brake switch terminal A and PCM terminal 1AF
• Short to the ground circuit between brake switch terminal A and PCM terminal 1AF
• PCM malfunction

BATTERY BRAKE SWITCH PCM

5
4 4
B D 1AB
9

4 4
C A
6
1AF
7 8

BRAKE SWITCH PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

C A
1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
D B
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair, then go to the
• Has the FREEZE FRAME DATA been next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–168
1871-1U-06B(01-02).fm 169 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 VERIFY RELATED PENDING CODE OR Yes Go to the applicable DTC inspection.
STORED DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch off then to the ON No Go to the next step.
position (Engine off).
• Verify the related PENDING CODE or stored
DTCs.
• Is the DTC P0703 also present? 01-02
4 INSPECT BRAKE SWITCH CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 10.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the brake switch connector.
• Inspect for poor connection (such as damaged,
pull-out pins, corrosion).
• Is there any malfunction?
5 INSPECT BRAKE SWITCH Yes Go to the next step.
• Inspect the brake switch. No Replace the brake switch, then go to Step 10.
• Is the brake switch normal?
6 INSPECT GROUND CIRCUIT OF BRAKE Yes Go to the next step.
SWITCH NO.2 FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Inspect for continuity between brake switch then go to Step 10.
terminal C (wiring harness-side) and body
ground.
• Is there continuity?
7 INSPECT SIGNAL CIRCUIT OF BRAKE SWITCH Yes Repair or replace the wiring harness for a short to ground
NO.2 FOR SHORT TO GROUND circuit, then go to Step 10.
• Inspect for continuity between brake switch No Go to the next step.
terminal A (wiring harness-side) and body
ground.
• Is there continuity?
8 INSPECT SIGNAL CIRCUIT OF BRAKE SWITCH Yes Go to the next step.
NO.2 FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Inspect for continuity between brake switch then go to Step 10.
terminal A (wiring harness-side) and
instrument cluster terminal 1AF (wiring
harness-side).
• Is there continuity?
9 INSPECT SIGNAL CIRCUIT OF BRAKE SWITCH Yes Repair or replace the wiring harness for a short to power
NO.2 FOR SHORT TO POWER supply, then go to the next step.
• Turn the ignition switch to the ON position No Go to the next step.
(Engine off).
• Measure the voltage between brake switch
terminal D (wiring harness-side) and body
ground.
• Is the voltage B+?
10 VERIFY TROUBLESHOOTING OF P0571 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch to the ON position
(Engine off).
• Depress and release the brake pedal more
than 5 times.
• Is the same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
WM: DTC P06XX

01-02–169
1871-1U-06B(01-02).fm 170 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0601[L3 WITH TC]
id010239809100

DTC P0601 Internal control module memory check sum error

• PCM internal memory check sum error.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
POSSIBLE
• PCM internal memory malfunction
CAUSE

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY TROUBLESHOOTING OF P0601 Yes Replace the PCM, go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is same DTC present?
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0602[L3 WITH TC]
id010239809200

DTC P0602 PCM programming error

• No configuration data in PCM

Note
• If the “PCM CONFIGURATION” is successful, the PCM stores DTC P0602 and illuminates the MIL
(System is normal). Clear DTC P0602 using the M-MDS after the “PCM CONFIGURATION”.
DETECTION • MIL turns off after three drive cycles with no failure (DTCs remain in PCM).
CONDITION
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
POSSIBLE • Configuration has not been completed.
CAUSE • PCM malfunction

01-02–170
1871-1U-06B(01-02).fm 171 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Perform PCM configuration procedure, then go to the next
• Is any related repair information available? step.
(See01-40-21 PCM CONFIGURATION[L3 WITH TC].)
3 VERIFY TROUBLESHOOTING OF DTC P0602 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0604[L3 WITH TC]
id010239809300

DTC P0604 PCM RAM error

• PCM internal RAM malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
POSSIBLE
• PCM internal RAM malfunction
CAUSE

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY TROUBLESHOOTING OF P0604 Yes Replace the PCM, go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

01-02–171
1871-1U-06B(01-02).fm 172 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

End Of Sie

DTC P0606[L3 WITH TC]

id010239809400

DTC P0606 ECM/PCM processor

• PCM internal CPU malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
POSSIBLE
• PCM internal CPU malfunction
CAUSE

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY TROUBLESHOOTING OF P0606 Yes Replace PCM, go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start engine.
• Is same DTC present?
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0607[L3 WITH TC]
id010239809500

DTC P0607 PCM performance problem

• PCM internal malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (Other).
CONDITION • MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• DTCs are stored in PCM memory.
POSSIBLE
• PCM internal malfunction
CAUSE

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on repair order, then go to
• Has FREEZE FRAME DATA been recorded? the next step.
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–172
1871-1U-06B(01-02).fm 173 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 VERIFY TROUBLESHOOTING OF P0607 Yes Replace PCM, go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start engine. 01-02
• Is same DTC present?
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0610[L3 WITH TC]
id010239809600

DTC P0610 PCM vehicle options error

• PCM data configuration error
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • The MIL does not illuminate.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
POSSIBLE • Configuration procedure has not been completed
CAUSE • PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY TROUBLESHOOTING OF DTC P0610 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–173
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0638[L3 WITH TC]
id010239809800

DTC P0638 Throttle actuator control range/performance

• The PCM compares the actual TP with the target TP when the engine is running. If the difference is more
than the specification, the PCM determines that there is a throttle actuator control circuit range/
performance problem.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Throttle actuator malfunction
POSSIBLE
• Throttle valve malfunction
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on repair order, then go to
• Has FREEZE FRAME DATA been recorded? the next step.
2 VERIFY RELATED REPAIR INFORMATION Yes Perform repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT FOR OTHER DTCS Yes Perform the diagnostic procedure for the applicable DTCs.
• Have other DTCs been stored? No Go to the next step.
4 INSPECT THROTTLE ACTUATOR Yes Go to the next step.
• Inspect the throttle actuator. (See 01-13-12 No Replace the throttle body, then go to the next step.
THROTTLE ACTUATOR INSPECTION[L3
WITH TC])
• Is the throttle actuator normal?
5 VERIFY TROUBLESHOOTING OF P0638 Yes Replace the PCM, go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch off.
• Start the engine and let it idle.
• Is the same DTC present?
6 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P0703[L3 WITH TC]
WM: DTC P07XX

id010239809900

DTC P0703 Brake switch No.1 circuit malfunction

• PCM monitors changes in the input voltage from the brake switch. If the PCM does not detect the voltage
change while alternately accelerating and decelerating 8 times, the PCM determines that the brake switch
circuit has a malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.

01-02–174
1871-1U-06B(01-02).fm 175 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P0703 Brake switch No.1 circuit malfunction
• Brake switch malfunction
• Poor connection of the brake switch connector or the PCM connector
POSSIBLE • Short to the power supply between brake switch terminal D and PCM connector terminal 1AB
CAUSE • Open circuit between brake switch terminal D and PCM connector terminal 1AB
• Open circuit between the battery positive terminal and brake switch terminal B
• PCM malfunction
B+ 01-02
7
4 10 PCM

B
12 6 8
BRAKE 1AB
SWITCH

9
D 13
4 10

BRAKE SWITCH PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
C A
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
D B 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 CLASSIFY HIGH INPUT OR LOW INPUT Yes Go to the next step.
• Connect the M-MDS to the DLC-2. No Go to Step 10.
• Access the BOO PID.
• Verify the BOO PID during brake pedal
operation.
• Is the BOO PID always off?
4 INSPECT BRAKE SWITCH CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 14.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the brake switch connector.
• Inspect for poor connection (such as damaged
pulled-out terminals, corrosion).
• Is there any malfunction?

01-02–175
1871-1U-06B(01-02).fm 176 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 CLASSIFY BRAKE SWITCH OR CIRCUIT Yes Go to the next step.
• Connect the M-MDS to the DLC-2. No Go to Step 7.
• Access the BOO PID.
• Connect a jumper wire between brake switch
terminal B and D (harness-side).
• Is the BOO PID on?
6 INSPECT BRAKE SWITCH Yes Go to Step 14.
• Perform the brake switch inspection. No Replace the brake switch, then go to Step 14.
(See04-11-9 BRAKE SWITCH INSPECTION.)
• Is the brake switch normal?
7 INSPECT BRAKE SWITCH POWER CIRCUIT Yes Go to the next step.
FOR OPEN CIRCUIT No Repair or replace the brake switch power circuit for an open
• Measure the voltage between brake switch circuit, then go to Step 14.
connector terminal B (harness-side) and body
ground.
• Is the voltage B+?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 14.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 INSPECT BRAKE SWITCH SIGNAL CIRCUIT Yes Repair or replace the wiring harness for an open circuit,
FOR OPEN CIRCUIT then go to Step 14.
• Inspect for continuity between brake switch No Go to Step 14.
terminal D (harness-side) and PCM terminal
1AB (harness-side).
• Is there continuity?
10 INSPECT BRAKE SWITCH CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 14.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect brake switch connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there malfunction?
11 CLASSIFY BRAKE SWITCH OR CIRCUIT Yes Go to the next step.
• Connect the M-MDS to the DLC-2. No Go to Step 13.
• Access the BOO PID.
• Verify that the BOO PID changes from on to off
when the brake switch connector is
disconnected.
• Does BOO PID change from on to off?
12 INSPECT BRAKE SWITCH Yes Go to Step 14.
• Perform the brake switch inspection. No Replace the brake switch, then go to Step 14.
(See04-11-9 BRAKE SWITCH INSPECTION.)
• Is the brake switch normal?
13 INSPECT BRAKE SWITCH SIGNAL CIRCUIT Yes Repair or replace the wiring harness for a short to power
FOR SHORT TO POWER SUPPLY supply, then go to Step 14.
• Measure the voltage between brake switch No Go to the next step.
connector terminal D (harness-side) and body
ground.
• Is the voltage B+?
14 VERIFY TROUBLESHOOTING OF DTC P0703 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the memory using the M-
MDS.
• Drive vehicle at 30 km/h {18.6 mph} or more.
• Depress and release brake pedal more than 8
times while driving the vehicle.
• Is the PENDING CODE for this DTC present?

01-02–176
1871-1U-06B(01-02).fm 177 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
15 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie 01-02

DTC P1260[L3 WITH TC]
WM: DTC P12XX

id010239815600

DTC P1260 Immobilizer system problem

• The instrument cluster detects an immobilizer system malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (Other).
CONDITION • The MIL does not illuminate.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
POSSIBLE • Immobilizer system malfunction
CAUSE • PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY STORED DTC IN INSTRUMENT Yes Go to the applicable DTC inspection.
CLUSTER No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Verify stored DTCs in instrument cluster.
• Are DTCs stored?
4 VERIFY TROUBLESHOOTING OF DTC P1260 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all the disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine or perform the KOEO self-test
with M-MDS.
• Is PENDING CODE for this DTC present?
5 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
WM: DTC P20XX

01-02–177
1871-1U-06B(01-02).fm 178 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2004[L3 WITH TC]
id010239810200

DTC P2004 Variable swirl control system shutter valve stuck open
• PCM monitors the mass variable swirl shutter valve position using the variable swirl shutter valve switch. If
the PCM turns variable swirl solenoid valve on but variable swirl shutter valve position still remains open
(variable swirl shutter valve switch is on), the PCM determines that the variable swirl shutter valve is stuck
open.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Variable swirl shutter valve actuator malfunction (stuck open)
• Misconnected or pulled out vacuum hose
• Variable swirl shutter valve switch malfunction
• Variable swirl solenoid valve malfunction
• Connector or terminal malfunction
• Open circuit in the wiring harness between variable swirl solenoid valve terminal B and PCM terminal 2AS
POSSIBLE
• Short to power in the wiring harness between variable swirl solenoid valve terminal B and PCM terminal
CAUSE
2AS
• Open circuit in the wiring harness between variable swirl shutter valve switch terminal A and PCM terminal
2AE
• Short to power in the wiring harness between variable swirl shutter valve switch terminal A and PCM
terminal 2AE
• PCM malfunction
MAIN RELAY PCM

VARIABLE SWIRL
SOLENOID VALVE
9 9 11 10
A B 2AS
5 12

VARIABLE SWIRL SHUTTER VALVE SWITCH

11 10
A 2AE
9 12
7

VARIABLE SWIRL SOLENOID VALVE PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

VARIABLE SWIRL SHUTTER VALVE SWITCH

WIRING HARNESS SIDE CONNECTOR

A B

01-02–178
1871-1U-06B(01-02).fm 179 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 CLASSIFY INTERMITTENT CONCERN OR Yes Go to the next step.
CONTINUOUS CONCERN No Intermittent concern exists. Go to INTERMITTENT
• Clear the DTC from the PCM memory using CONCERN TROUBLESHOOTING procedure.
the M-MDS. (See01-03-76 INTERMITTENT CONCERN
• Drive the vehicle under the following TROUBLESHOOTING[L3 WITH TC].)
conditions:
— Engine coolant temperature is above 63 °C
{145 °F}.
— Engine speed: below 3,750 rpm
— Throttle opening angle is as follows:
• Engine speed below 1,500 rpm: above
35%
• Engine speed between 1,500— 2,500
rpm: between 25— 35%
• Engine speed above 2,500: below 25%
• Is the PENDING CODE for this DTC present?
4 VERIFY IF STORED OTHER DTCs STORED Yes Go to the appropriate DTC troubleshooting procedures.
• Verify stored DTCs using the M-MDS. No Go to the next step.
• Is DTC P2088 or P2089 present?
5 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Go to the next step.
• Perform “VARIABLE SWIRL SOLENOID No Replace variable swirl solenoid valve, then go to Step 13.
VALVE INSPECTION”.
(See01-13-13 VARIABLE SWIRL SOLENOID
VALVE INSPECTION[L3 WITH TC].)
• Is the variable swirl solenoid valve normal?
6 INSPECT VARIABLE SWIRL SHUTTER VALVE Yes Go to the next step.
ACTUATOR No Replace the intake manifold, then go to Step 13.
• Perform “VARIABLE SWIRL SHUTTER VALVE
ACTUATOR INSPECTION”.
(See01-13-13 VARIABLE SWIRL SHUTTER
VALVE ACTUATOR INSPECTION[L3 WITH
TC].)
• Is the variable swirl shutter valve actuator
normal?
7 INSPECT VARIABLE SWIRL SHUTTER VALVE Yes Go to the next step.
SWITCH No Replace the intake manifold, then go to Step 13.
• Perform the “VARIABLE SWIRL SHUTTER
VALVE SWITCH INSPECTION”.
(See01-13-13 VARIABLE SWIRL SHUTTER
VALVE ACTUATOR INSPECTION[L3 WITH
TC].)
• Is the variable swirl shutter valve switch
normal?
8 VERIFY CONNECTION OF VACUUM HOSE Yes Go to the next step.
ROUTING No Connect the vacuum hoses properly, then go to the next
• Verify that the vacuum hoses are connected step.
properly.
• Are the vacuum hoses connected properly?

01-02–179
1871-1U-06B(01-02).fm 180 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
9 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Repair or replace the terminal, then go to Step 13.
OR VARIABLE SWIRL SHUTTER VALVE No Go to the next step.
SWICTH CONNECTOR FOR POOR
CONNECTION
• Turn the ignition switch to off.
• Disconnect the variable swirl solenoid valve
connector and variable swirl shutter valve
switch connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
10 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 13.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
11 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Go to the next step.
OR VARIABLE SWIRL SHUTTER VALVE SW No Repair or replace the wiring harness for an open circuit,
SIGNAL CIRCUIT FOR OPEN CIRCUIT then go to Step 13.
• Inspect for continuity between the following
terminals:
— Variable swirl solenoid valve terminal B
(harness-side) and PCM terminal 2AS
(harness-side).
— Variable swirl shutter valve sw terminal A
(harness-side) and PCM terminal 2AE
(harness-side).
• Is there continuity?
12 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Repair or replace the wiring harness for a short to power
OR VARIABLE SWIRL SHUTTER VALVE supply, then go to the next step.
SWITCH CIRCUIT FOR SHORT TO POWER No Go to the next step.
SUPPLY
• Disconnect the variable swirl solenoid valve
connector and variable swirl shutter valve
switch connector.
• Turn ignition switch to the ON position (Engine
off).
• Measure the voltage between the following
terminals and body ground.
— PCM terminal 2AS (harness-side).
— PCM terminal 2AE (harness-side).
• Is the voltage B+?
13 VERIFY TROUBLESHOOTING OF DTC P2004 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM INSPECTION[L3 WITH TC].)
• Make sure to reconnect all disconnected No Go to the next step.
connectors.
• Start the engine.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Drive the vehicle under following conditions:
— Engine coolant temperature is above 63 °C
{145 °F}.
— Engine speed: below 3,750 rpm
— Throttle opening angle is as follows
• Engine speed below 1,500 rpm: above
35%
• Engine speed between 1,500— 2,500
rpm: between 25— 35%
• Engine speed above 2,500:below 25%
• Is the PENDING CODE for this DTC present?
14 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

01-02–180
1871-1U-06B(01-02).fm 181 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

End Of Sie

DTC P2006[L3 WITH TC]

id010239810300

DTC P2006 Variable swirl control system shutter valve stuck closed
• PCM monitors the mass variable swirl shutter valve position using the variable swirl shutter valve switch. If
PCM turns the variable swirl solenoid valve off but the variable swirl position still remains closed (variable
swirl shutter valve switch is off), the PCM determines that the variable swirl shutter valve is stuck closed.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM). 01-02
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• ECT sensor malfunction
• TP sensor malfunction
• CKP sensor malfunction
• Connector or terminal malfunction
• Variable swirl solenoid valve malfunction
POSSIBLE
• Variable swirl shutter valve malfunction (stuck closed)
CAUSE
• Variable swirl shutter valve actuator malfunction (stuck closed).
• Short to ground circuit between variable swirl solenoid valve terminal B and PCM terminal 2AS
• Short to ground in the wiring harness between variable swirl shutter valve switch terminal A and PCM
terminal 2AE
• PCM malfunction
MAIN RELAY PCM

VARIABLE SWIRL
SOLENOID VALVE
7 7 9 8
A B 2AS
6

VARIABLE SWIRL SHUTTER VALVE SWITCH

7 9 8
A 2AE

7
B

VARIABLE SWIRL SOLENOID VALVE PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
B A

1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C

1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

VARIABLE SWIRL SHUTTER VALVE SWITCH

WIRING HARNESS SIDE CONNECTOR

A B

01-02–181
1871-1U-06B(01-02).fm 182 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 CLASSIFY INTERMITTENT CONCERN OR Yes Go to the next step.
CONTINUOUS CONCERN No Intermittent concern exists. Go to INTERMITTENT
• Clear the DTC from the PCM memory using CONCERN TROUBLESHOOTING procedure.
the M-MDS. (See01-03-76 INTERMITTENT CONCERN
• Drive the vehicle under following conditions: TROUBLESHOOTING[L3 WITH TC].)
— Engine coolant temperature is above 63 °C
{145 °F}.
— Engine speed: below 3,750 rpm
— Throttle opening angle is as follows:
• Engine speed below 1,500 rpm: above
35%
• Engine speed between 1,500— 2,500
rpm: between 25— 35%
• Engine speed above 2,500: below 25%
• Is the PENDING CODE for this DTC present?
4 VERIFY STORED OTHER DTCS Yes Go to appropriate DTC troubleshooting procedures.
• Verify stored DTCs using M-MDS or No Go to the next step.
equipment.
• Is other DTC present except P0117, P0118,
P0121, P0122, P0123 and/or P0335?
5 INSPECT VARIABLE SWIRL SHUTTER VALVE Yes Go to the next step.
ACTUATOR No Replace the variable swirl shutter valve actuator, then go to
• Perform the “Variable Swirl System Operation Step 10.
Inspection”.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the variable swirl shutter valve actuator
normal?
6 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Go to the next step.
• Perform the “variable swirl solenoid valve No Replace the variable swirl solenoid valve, then go to Step
airflow inspection”. 10.
(See01-13-13 VARIABLE SWIRL SOLENOID
VALVE INSPECTION[L3 WITH TC].)
• Is the variable swirl solenoid valve normal?
7 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Repair the terminal, then go to Step 10.
OR VARIABLE SWIRL SHUTTER VALVE No Go to the next step.
SWITCH CONNECTOR FOR POOR
CONNECTION
• Turn the ignition switch to off.
• Disconnect the variable swirl solenoid valve
connector and the variable swirl shutter valve
switch connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Inspect for poor connection at the PCM
terminals (such as damaged, pulled-out
terminals, corrosion).
• Is there any malfunction?

01-02–182
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
9 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Repair or replace the wiring harness for a short to ground,
OR VARIABLE SWIRL SHUTTER VALVE then go to the next step.
SWITCH SIGNAL CIRCUIT FOR SHORT TO No Go to the next step.
GROUND
• Inspect for continuity between the following
terminals and body ground.
— PCM terminal 2AS (harness-side). 01-02
— PCM terminal 2AE (harness-side).
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P2006 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Start the engine.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Drive the vehicle under the following
conditions:
— Engine coolant temperature is above 63 °C
{145 °F}.
— Engine speed: below 3,750 rpm
— Throttle opening angle is as follows:
• Engine speed below 1,500 rpm: above
35%
• Engine speed between 1,500— 2,500
rpm: between 25— 35%
• Engine speed above 2,500: below 25%
• Is the PENDING CODE for this DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–183
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2009[L3 WITH TC]
id010239810400

DTC P2009 Variable swirl solenoid valve control circuit low

• PCM monitors the variable swirl solenoid valve control signal. If the PCM turns variable swirl solenoid valve
off but the voltage still remains low, the PCM determines that the variable swirl solenoid valve control circuit
has a malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Poor connection of connectors at PCM and/or variable swirl solenoid valve
• Short to ground in the wiring harness between variable swirl solenoid valve terminal B and PCM terminal
2AS
POSSIBLE
• Open circuit in the wiring harness between main relay and variable swirl solenoid valve terminal A
CAUSE
• Open circuit in the wiring harness between variable swirl solenoid valve terminal B and PCM terminal 2AS
• Variable swirl solenoid valve malfunction
• PCM malfunction
MAIN RELAY PCM

VARIABLE SWIRL
SOLENOID VALVE
5
7 8 6
A B 2AS
3 3
4

VARIABLE SWIRL SOLENOID VALVE PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Repair or replace the terminal, then go to Step 9.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?

01-02–184
1871-1U-06B(01-02).fm 185 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Go to the next step.
• Perform the variable swirl solenoid valve No Replace the variable swirl solenoid valve, then go to Step 9.
inspection.
(See01-13-13 VARIABLE SWIRL SOLENOID
VALVE INSPECTION[L3 WITH TC].)
• Is the variable swirl solenoid valve normal?
5 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Go to the next step. 01-02
POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Disconnect the variable swirl solenoid valve then go to Step 9.
connector.
• Turn ignition switch to the ON position (Engine
off).
• Measure voltage between variable swirl
solenoid valve terminal A (harness-side) and
body ground.
• Is the voltage B+?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection at PCM terminal
2AS. (such as damaged, pulled-out pins,
corrosion).
• Is there any malfunction?
7 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Repair or replace the wiring harness for a short to ground,
CONTROL CIRCUIT FOR SHORT TO GROUND then go to Step 9.
• Inspect for continuity between variable swirl No Go to the next step.
solenoid valve terminal B (harness-side) and
body ground.
• Is there continuity?
8 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Go to the next step.
CONTROL CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open or short to
• Connect variable swirl solenoid valve ground circuit, then go to the next step.
connector.
• Turn ignition switch to the ON position (Engine
off).
• Measure the voltage between PCM terminal
2AS (harness-side) and body ground.
• Is the voltage B+?
9 VERIFY TROUBLESHOOTING OF DTC P2009 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch off.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–185
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2010[L3 WITH TC]
id010239810500

DTC P2010 Variable swirl solenoid valve control circuit high

• PCM monitors the variable swirl solenoid valve control signal. If the PCM turns variable swirl solenoid valve
on but the voltage still remains high, the PCM determines that the variable swirl solenoid valve control
circuit has a malfunction.
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Poor connection of connectors at the PCM and/or the variable swirl solenoid valve
• Short to the power supply in the wiring harness between variable swirl solenoid valve terminal B and PCM
POSSIBLE
terminal 2AS
CAUSE
• Variable swirl solenoid valve malfunction
• PCM malfunction
MAIN RELAY PCM

VARIABLE SWIRL
SOLENOID VALVE
6 5
A B 2AS
3 3
4

VARIABLE SWIRL SOLENOID VALVE PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–186
1871-1U-06B(01-02).fm 187 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Repair or replace the terminal, then go to Step 7.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Go to the next step.
• Perform variable swirl solenoid valve No Replace the variable swirl solenoid valve, then go to Step 7.
inspection.
(See01-13-13 VARIABLE SWIRL SOLENOID
VALVE INSPECTION[L3 WITH TC].)
• Is the variable swirl solenoid valve normal?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to Step 7.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection at PCM terminal
2AS. (such as damaged, pulled-out pins,
corrosion).
• Is there any malfunction?
6 INSPECT VARIABLE SWIRL SOLENOID VALVE Yes Repair or replace the wiring harness for a short to power
CONTROL CIRCUIT FOR SHORT TO POWER supply, then go to the next step.
SUPPLY No Go to the next step.
• Remove the variable swirl solenoid valve.
• Turn ignition switch to the ON position (Engine
off).
• Measure voltage between PCM terminal 2AS
(harness-side) and body ground.
• Is the voltage B+?
7 VERIFY TROUBLESHOOTING OF DTC P2010 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch off.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–187
1871-1U-06B(01-02).fm 188 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2088[L3 WITH TC]
id010239810600

DTC P2088 OCV actuator circuit low

• PCM monitors the OCV voltage. If the PCM detects that the OCV control voltage (calculated from OCV) is
below the threshold voltage (calculated from battery positive voltage), the PCM determines that the OCV
circuit has a malfunction.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Poor connection of connectors at the PCM and/or OCV
• Short to ground in the wiring harness between OCV terminal A and PCM terminal 2AF
POSSIBLE • Open circuit in the wiring harness between main relay and OCV terminal B
CAUSE • Open circuit in the wiring harness between OCV terminal A and PCM terminal 2AF
• OCV malfunction
• PCM malfunction
MAIN RELAY PCM

OCV
5
7 8 6
B A 2AF
3 3
4

OCV PCM
WIRING HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–188
1871-1U-06B(01-02).fm 189 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT OCV CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT OCV Yes Go to the next step.
• Perform the OCV inspection. No Replace OCV, then go to Step 9.
(See01-10-29 OIL CONTROL VALVE (OCV)
INSPECTION[L3 WITH TC].)
• Is the OCV normal?
5 INSPECT OCV POWER SUPPLY CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Disconnect the OCV connector. then go to Step 9.
• Turn ignition switch to the ON position (Engine
off).
• Measure voltage between OCV terminal B
(harness-side) and body ground.
• Is the voltage B+?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection at PCM terminal
2AF. (such as damaged, pulled-out pins,
corrosion).
• Is there any malfunction?
7 INSPECT OCV CONTROL CIRCUIT FOR SHORT Yes Repair or replace the wiring harness for a short to ground,
TO GROUND then go to Step 9.
• Inspect for continuity between OCV terminal A No Go to the next step.
(harness-side) and body ground.
• Is there continuity?
8 INSPECT OCV CONTROL CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace the wiring harness for an open or short to
• Connect the OCV connector. ground circuit, then go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Check for continuity between OCV terminal A
(harness-side) and PCM terminal 2AF
(harness-side).
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P2088 Yes Replace PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch off.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

01-02–189
1871-1U-06B(01-02).fm 190 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

End Of Sie

DTC P2089[L3 WITH TC]

id010239810700

DTC P2089 OCV actuator circuit high

• PCM monitors the OCV voltage. If the PCM detects that the OCV control voltage (calculated from OCV) is
above the threshold voltage (calculated from battery positive voltage), the PCM determines that the OCV
circuit has a malfunction.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Poor connection at the PCM and/or OCV connectors
POSSIBLE • Short to the power supply in the wiring harness between OCV terminal A and PCM terminal 2AF
CAUSE • OCV malfunction
• PCM malfunction
MAIN RELAY PCM

OCV
6 5
B A 2AF
3 3
4

OCV PCM
WIRING HARNESS SIDE CONNECTOR HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT OCV CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 7.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT OCV Yes Go to the next step.
• Perform the OCV inspection. No Replace the OCV, then go to Step 7.
(See01-10-29 OIL CONTROL VALVE (OCV)
INSPECTION[L3 WITH TC].)
• Is the OCV normal?

01-02–190
1871-1U-06B(01-02).fm 191 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair terminal, then go to Step 7.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection at PCM terminal
2AF. (such as damaged, pulled-out pins,
corrosion). 01-02
• Is there any malfunction?
6 INSPECT OCV CONTROL CIRCUIT FOR SHORT Yes Repair or replace the wiring harness for a short to power
TO POWER SUPPLY supply, then go to the next step.
• Remove the OCV. No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Measure voltage between PCM terminal 2AF
and body ground.
• Is the voltage B+?
7 VERIFY TROUBLESHOOTING OF DTC P2089 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch to off.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2096[L3 WITH TC]
id010239810800

DTC P2096 Target A/F feedback system too lean

• The PCM monitors the target A/F fuel trim while under target A/F feedback control. If the fuel trim is more
than the specification, the PCM determines that the target A/F feedback system is too lean.
• Rear HO2S sensor voltage is more than 0.1 V
Diagnostic support note
DETECTION • This is a continuous monitor (Fuel system).
CONDITION • The MIL does not illuminate.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Exhaust gas leakage
• Rear HO2S malfunction
• IAT sensor malfunction
• ECT sensor malfunction
• Air suction in intake-air system
• Front HO2S malfunction
• MAF sensor malfunction
• Insufficient fuel line pressure
POSSIBLE • Fuel pressure sensor malfunction
CAUSE • Relief valve (built-in fuel delivery pipe) malfunction
• Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
• High pressure fuel pump malfunction
• Fuel pump malfunction
• Leakage fuel
• Improper operation ignition system
• Insufficient engine compression
• Fuel injector malfunction
• PCM malfunction

01-02–191
1871-1U-06B(01-02).fm 192 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Fuel system related) been recorded?
2 VERIFY REPAIR INFORMATION AVAILABILITY Yes Perform the repair or diagnosis according to the available
• Verify related service repair information repair information.
availability. If the vehicle is not repaired, go to the next step.
• Is any related repair information available? No Go to the next step.
3 VERIFY RELATED PENDING CODE OR Yes Go to the applicable DTC inspection.
STORED DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch off then to the ON No Go to the next step.
position (Engine off).
• Verify the related PENDING CODE or stored
DTCs.
• Is the DTC P2177 or P2187 also present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to FREEZE FRAME DATA DTC inspection.
• Is DTC P2096 on FREEZE FRAME DATA? (See01-02-13 DTC TABLE[L3 WITH TC].)
5 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
REAR HO2S No Visually inspect for the exhaust gas leakage between the
• Connect the M-MDS to the DLC-2. TWC and rear HO2S.
• Start the engine and warm it up completely. • If there is no leakage, replace the rear HO2S.
• Access O2S12 PID. (See01-15-2 EXHAUST SYSTEM REMOVAL/
• Read O2S12 PID under the following INSTALLATION[L3 WITH TC].)
accelerator pedal condition (in NEUTRAL). Then go to Step 20.
— More than 0.45 V when accelerator pedal is
suddenly depressed (rich condition).
— Less than 0.45 V just after release of
accelerator pedal (lean condition)
• Is the PID normal?
6 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to the next step.
• Connect the M-MDS to the DLC-2. No Inspect the malfunctioning part according to the inspection
• Verify the following PIDs. results.
(See01-40-6 PCM INSPECTION[L3 WITH Then go to Step 20.
TC].)
— ECT
— MAF
— TP
— VSS
• Are the PIDs normal?
7 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to the next step.
UNDER FREEZE FRAME DATA CONDITION No Inspect the malfunctioning part according to the inspection
• Connect the M-MDS to the DLC-2. results.
• Verify the following PIDs under the FREEZE Then go to Step 20.
FRAME DATA condition.
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
— ECT
— MAF
— TP
— VSS
• Are the PIDs normal?

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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
8 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
FRONT HO2S No Visually inspect for the exhaust gas leakage between the
• Connect the M-MDS to the DLC-2. exhaust manifold and front HO2S.
• Start the engine and warm it up completely. • If there is no leakage, replace front HO2S.
• Access the O2S11 PID. (See01-15-2 EXHAUST SYSTEM REMOVAL/
• Read the O2S11 PID under following INSTALLATION[L3 WITH TC].)
accelerator pedal condition (in NEUTRAL). Then go to Step 20. 01-02
— –0.1— 0.1A when idle.
— More than 0.25 mA just after release of
accelerator pedal (lean condition).
• Is the PID normal?
9 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
MAF SENSOR No Replace the MAF/IAT sensor, then go to Step 20.
• Connect the M-MDS to the DLC-2.
• Start the engine.
• Access the MAF PID.
• Verify that the MAF PID changes quickly
according to engine speed.
• Is the PID normal?
10 INSPECT INTAKE-AIR SYSTEM FOR Yes Repair or replace the malfunctioning part, then go to Step
EXCESSIVE AIR SUCTION 20.
• Visually inspect the hose in intake-air system No Go to the next step.
for looseness, cracks or damages.
• Is there any malfunction?
11 INSPECT IGNITION COIL WIRING HARNESSES Yes Go to the next step.
• Inspect the ignition coil related wiring harness No Repair the wiring harnesses, then go to Step 20.
condition (intermittent open or short circuit) for
all cylinders.
• Are wiring harness conditions normal?
12 INSPECT IGNITION SYSTEM OPERATION Yes Go to the next step.
• Perform the spark test. No Repair or replace the malfunctioning part according to
(See01-03-78 ENGINE CONTROL SYSTEM spark test result.
OPERATION INSPECTION[L3 WITH TC].) Then go to Step 20.
• Is strong blue spark visible at each cylinder?
13 INSPECT ENGINE COMPRESSION Yes Go to the next step.
• Inspect the engine compression. No Overhaul the engine, then go to Step 20.
(See01-10-9 COMPRESSION
INSPECTION[L3 WITH TC].)
• Is there any malfunction?
14 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 18.
• Access and monitor FUEL_PRES PID. No Go to the next step.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
15 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 17.
• Is the vehicle accelerate performance
normally?
16 INSPECT FUEL PRESSURE SENSOR Yes Go to Step 18.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 20.
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
17 INSPECT HIGH PRESSURE FUEL PUMP Yes Go to Step 20.
• Replace the high pressure fuel pump. No Go to the next step.
• Monitor FUEL_PRES PID.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)

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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
18 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between fuel No Inspect for following:
pump and high pressure fuel pump. • Fuel line restriction
• Measure the low side fuel pressure. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If okay replace the fuel pump. Then go to Step 20.
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the
specified?
19 INSPECT FUEL INJECTOR Yes Replace the fuel injector, then go to the next step.
• Inspect the fuel injector. (See01-14-23 FUEL INJECTOR REMOVAL/
(See01-14-27 FUEL INJECTOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
20 VERIFY TROUBLESHOOTING OF DTC P2096 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the PCM Adaptive Memory Produce
Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
21 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2097[L3 WITH TC]
id010239810900

DTC P2097 Target A/F feedback system too rich

• The PCM monitors the target A/F fuel trim while under target A/F feedback control. If the fuel trim is less
than specification, the PCM determines that the target A/F feedback system is too rich.
Diagnostic support note
• This is a continuous monitor. (Fuel system)
DETECTION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
CONDITION one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Exhaust gas leakage
• Rear HO2S malfunction
• IAT sensor malfunction
• ECT sensor malfunction
• Front HO2S malfunction
• Excessive fuel line pressure
POSSIBLE • Fuel pressure sensor malfunction
CAUSE • Relief valve (built-in fuel delivery pipe) malfunction
• Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
• High pressure fuel pump malfunction
• Fuel pump malfunction
• Purge valve malfunction
• Insufficient engine compression
• PCM malfunction

01-02–194
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Fuel system related) been recorded? 01-02
2 VERIFY REPAIR INFORMATION AVAILABILITY Yes Perform the repair or diagnosis according to the available
• Verify related service repair information repair information.
availability. If the vehicle is not repaired, go to the next step.
• Is any related repair information available? No Go to the next step.
3 VERIFY RELATED PENDING CODE OR Yes Go to the applicable DTC inspection.
STORED DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch off, then to the ON No Go to the next step.
position (Engine off).
• Verify the related PENDING CODE or stored
DTCs.
• Is the DTC P2178 or P2188 also present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to FREEZE FRAME DATA DTC inspection.
• Is DTC P2097 on FREEZE FRAME DATA? (See01-02-13 DTC TABLE[L3 WITH TC].)
5 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
REAR HO2S No Visually inspect for the exhaust gas leakage between TWC
• Connect the M-MDS to the DLC-2. and rear HO2S.
• Start the engine and warm it up completely. • If there is no leakage, replace rear HO2S.
• Access the O2S12 PID. (See01-15-2 EXHAUST SYSTEM REMOVAL/
• Read the O2S12 PID under following INSTALLATION[L3 WITH TC].)
accelerator pedal condition (in NEUTRAL). Then go to Step 15.
— More than 0.45 V when accelerator pedal is
suddenly depressed (rich condition).
— Less than 0.45 V just after release of
accelerator pedal (lean condition)
• Is the PID normal?
6 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to the next step.
• Connect the M-MDS to the DLC-2. No Inspect the malfunctioning part according to the inspection
• Verify the following PIDs: results.
(See01-40-6 PCM INSPECTION[L3 WITH Then go to Step 15.
TC].)
— ECT
— MAF
— TP
— VSS
• Are the PIDs normal?
7 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to the next step.
UNDER FREEZE FRAME DATA CONDITION No Inspect the malfunctioning part according to the inspection
• Connect the M-MDS to the DLC-2. results.
• Verify the following PIDs under FREEZE Then go to Step 15.
FRAME DATA condition.
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
— ECT
— MAF
— TP
— VSS
• Are the PIDs normal?

01-02–195
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
8 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
FRONT HO2S No Visually inspect for exhaust gas leakage between the
• Connect the M-MDS to the DLC-2. exhaust manifold and front HO2S.
• Start the engine and warm it up completely. • If there is no leakage, replace front HO2S.
• Access the O2S11 PID. (See01-15-2 EXHAUST SYSTEM REMOVAL/
• Read the O2S11 PID under following INSTALLATION[L3 WITH TC].)
accelerator pedal condition (in NEUTRAL). Then go to Step 15.
— –0.1— 0.1A when idle
— More than 0.25 mA just after release of
accelerator pedal (lean condition).
• Is the PID normal?
9 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 14.
• Access and monitor FUEL_PRES PID. No Go to the next step.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
10 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 12.
• Is the vehicle accelerate performance
normally?
11 INSPECT FUEL PRESSURE SENSOR Yes Go to Step 14.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 15.
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
12 INSPECT HIGH PRESSURE FUEL PUMP Yes Go to Step 15.
• Replace the high pressure fuel pump. No Go to the next step.
• Monitor FUEL_PRES PID.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
13 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between fuel No Inspect for following:
pump and high pressure fuel pump. • Fuel line restriction
• Measure the low side fuel pressure. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If normal replace the fuel pump. Then go to Step 15.
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the
specified?
14 INSPECT LONG TERM FUEL TRIM Yes Inspect the purge valve.
• Connect the M-MDS to the DLC_2. (See01-16-9 PURGE SOLENOID VALVE INSPECTION[L3
• Access LONGFT1 PID. WITH TC].)
• Compare the LONGFT1 PID with recorded • If there is any malfunction, replace the purge valve.
FREEZE FRAME DATA at Step 1. Then go to the next step.
• Is the LONGFT1 PID above FREEZE FRAME No Go to the next step.
DATA?
15 VERIFY TROUBLESHOOTING OF DTC P2097 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the PCM Adaptive Memory Produce
Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
16 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
WM: DTC P21XX

01-02–196
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2100[L3 WITH TC]
id010239811000

DTC P2100 Throttle actuator circuit open

• PCM monitors the electronic throttle valve motor current. If the PCM detects that the electronic throttle
valve motor current is below the threshold current, the PCM determines that the electronic throttle valve
motor circuit has a malfunction.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM). 01-02
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Throttle valve motor malfunction
• Open circuit between throttle body terminal F and PCM terminal 2A
• Open circuit between throttle body terminal E and PCM terminal 2B
• Short to the power supply between throttle body terminal E and PCM terminal 2B
POSSIBLE
• Short to the power supply between throttle body terminal F and PCM terminal 2A
CAUSE
• Short to the ground between throttle body terminal E and PCM terminal 2B
• Short to the ground between throttle body terminal F and PCM terminal 2A
• Poor connection of throttle body connector or PCM connector
• PCM malfunction
THROTTLE ACTUATOR PCM
9

4 8 9 7
F 2A

4 10 11 7
E 2B

PCM
THROTTLE BODY
WIRING HARNESS SIDE CONNECTOR
HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

F E 2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–197
1871-1U-06B(01-02).fm 198 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 CLASSIFY INTERMITTENT CONCERN OR Yes Go to the next step.
CONTINUOUS CONCERN No Go to INTERMITTENT CONCERNS
• Clear the DTC using the M-MDS. TROUBLESHOOTING procedure.
• Start the engine and let it idle. (See01-03-76 INTERMITTENT CONCERN
• Is the same PENDING CODE present? TROUBLESHOOTING[L3 WITH TC].)
4 INSPECT THROTTLE BODY CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 12.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the throttle body connector.
• Check for poor connection (such as damaged,
pulled out terminals, corrosion).
• Is there any malfunction?
5 INSPECT THROTTLE VALVE ELECTRICAL Yes Go to the next step.
MALFUNCTION No Replace the throttle body, then go to Step 12.
• Measure resistance between throttle body
terminal E and F (part-side).
• Is resistance approx.1.3 ohms?
6 CLASSIFY MALFUNCTION ET POWER SUPPLY Yes Malfunction at control circuit.
CIRCUIT OR CONTROL CIRCUIT Go to the next step.
• Turn ignition switch to the ON position (Engine No Malfunction at power supply circuit.
off). Go to the next step.
• Measure the voltage between throttle body
terminal F (harness-side) and body ground.
• Is the voltage B+?
7 INSPECT PCM CONNECTOR FOR POOR Yes Repair terminal, then go to Step 12.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Check for poor connection (such as damaged,
pulled out terminals, corrosion).
• Is there any malfunction?
8 INSPECT POWER CIRCUIT FOR SHORT TO Yes Repair or replace the wiring harness to a short to ground,
GROUND then go to Step 12.
• Turn the ignition switch to off. No Go to the next step.
• Check for continuity between throttle body
terminal F (harness-side) and body ground.
• Is there continuity?
9 INSPECT POWER CIRCUIT FOR OPEN CIRCUIT Yes Go to the next step.
• Turn the ignition switch to off. No Repair or replace the wiring harness for an open circuit,
• Check for continuity between throttle body then go to Step 12.
terminal F (harness-side) and PCM terminal 2A
(harness-side).
• Is there continuity?
10 INSPECT CONTROL CIRCUIT FOR SHORT TO Yes Repair or replace the wiring harness for a short to ground,
GROUND then go to Step 12.
• Turn the ignition switch to off. No Go to the next step.
• Check for continuity between throttle body
terminal E (harness-side) and body ground.
• Is there continuity?
11 INSPECT CONTROL CIRCUIT MALFUNCTION Yes Go to the next step.
FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Check for continuity between throttle body then go to the next step.
terminal E (harness-side) and PCM terminal
2B (harness-side).
• Is there continuity?
12 VERIFY TROUBLESHOOTING OF DTC P2100 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start engine and warm it up completely.
• Is the same DTC present?

01-02–198
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
13 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie 01-02

DTC P2101[L3 WITH TC]
id010239811100

DTC P2101 Throttle actuator circuit range/performance

• If the PCM detects any of the following conditions, the PCM determines that the throttle circuit has a
malfunction.
— Default throttle angle that the PCM stored and the throttle angle with drive-by-wire-relay off is not
significant.
— Voltage from drive-by-wire-relay is too high or too low
DETECTION — PCM detects large voltage difference between the drive-by-wire-relay and the main relay
CONDITION — PCM internal malfunction
Diagnostic support note
• This is a continuous monitor.
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Drive-by-wire-relay and related circuit malfunction
• Main relay and related circuit malfunction
POSSIBLE
• Throttle position sensor No.1 and related circuit malfunction
CAUSE
• Throttle position sensor No.2 and related circuit malfunction
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING AND STORED Yes Go to appropriate DTC troubleshooting procedure.
DTCS No Go to the next step.
• Turn ignition switch to OFF, then ON (Engine
off).
• Verify pending and stored DTCs using the M-
MDS.
• Are any DTCs present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for DTC on FREEZE
• Is DTC P2101 on FREEZE FRAME DATA? FRAME DATA.
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 22.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged,
pulled out terminals, corrosion).
• Is there any malfunction?
6 INSPECT MAIN RELAY OUTPUT VOLTAGE Yes Go to Step 13.
• Turn the ignition switch to off. No Go to the next step.
• Connect the PCM connector.
• Turn ignition switch to the ON position (Engine
off).
• Measure the voltage between PCM terminal
1BE and body ground.
• Is the voltage B+?

01-02–199
1871-1U-06B(01-02).fm 200 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
7 INSPECT MAIN RELAY CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 22.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the main relay.
• Inspect for poor connection (such as damaged,
pulled out terminals, corrosion).
• Is there any malfunction?
8 INSPECT POWER SUPPLY OF MAIN RELAY Yes Go to the next step.
• Turn ignition switch to the ON position (Engine No Repair or replace the wiring harness for an open circuit,
off). then go to Step 22.
• Measure the voltage between main relay
terminal D (harness-side) and body ground.
• Is the voltage B+?
9 INSPECT POWER SUPPLY FOR CONTROL Yes Go to the next step.
CIRCUIT OF MAIN RELAY No Repair or replace the wiring harness for an open circuit,
• Turn ignition switch to the ON position (Engine then go to Step 22.
off).
• Measure the voltage between main relay
terminal A (harness-side) and body ground.
• Is the voltage B+?
10 INSPECT MAIN RELAY Yes Go to the next step.
• Inspect the main relay. No Replace the main relay, then go to Step 22.
(See09-21-4 RELAY INSPECTION.)
• Is the main relay normal?
11 INSPECT POWER CIRCUIT FOR OPEN CIRCUIT Yes Go to the next step.
• Turn the ignition switch to off. No Repair or replace the wiring harness for an open circuit,
• Disconnect the main relay and the PCM then go to Step 22.
connector.
• Check for continuity between main relay
terminal C (harness-side) and PCM terminal
1BE (harness-side).
• Is there continuity?
12 INSPECT CONTROL CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Check for continuity between main relay then go to Step 22.
terminal E (harness-side) and PCM terminal
1AT (harness-side).
• Is there continuity?
13 INSPECT DRIVE-BY-WIRE-RELAY OUTPUT Yes Go to the next step.
VOLTAGE No Repair or replace the wiring harness for a short to power
• Turn ignition switch to the ON position (Engine supply, then go to Step 22.
off).
• Measure the voltage between PCM terminal
1BF (harness-side) and body ground.
• Is the voltage B+?
14 INSPECT DRIVE-BY-WIRE-RELAY Yes Repair or replace the terminal, then go to Step 22.
CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the drive-by-wire-relay.
• Check drive-by-wire-relay connector (harness-
side) for poor connection (such as damaged,
pulled out terminals, corrosion).
• Is there any malfunction?
15 INSPECT POWER SUPPLY OF DRIVE-BY- Yes Go to the next step.
WIRE-RELAY No Repair or replace the wiring harness for an open circuit,
• Turn ignition switch to the ON position (Engine then go to Step 22.
off).
• Measure the voltage between drive-by-wire-
relay terminal D (harness-side) and body
ground.

01-02–200
1871-1U-06B(01-02).fm 201 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
16 INSPECT POWER SUPPLY FOR CONTROL Yes Go to the next step.
CIRCUIT OF DRIVE-BY-WIRE-RELAY No Repair or replace the wiring harness for an open circuit
• Turn ignition switch to the ON position (Engine between drive-by-wire-relay terminal E and main relay
off). terminal C, then go to Step 22.
• Measure the voltage between drive-by-wire-
relay terminal E (harness-side) and body
ground. 01-02
• Is the voltage B+?
17 INSPECT DRIVE-BY-WIRE-RELAY Yes Go to the next step.
• Inspect the drive-by-wire-relay. No Replace the drive-by-wire-relay, then go to Step 22.
(See09-21-4 RELAY INSPECTION.)
• Is the drive-by-wire-relay normal?
18 INSPECT POWER CIRCUIT FOR OPEN CIRCUIT Yes Go to the next step.
• Turn the ignition switch to off. No Repair or replace the wiring harness for an open circuit,
• Check for continuity between drive-by-wire- then go to Step 22.
relay terminal C (harness-side) and PCM
terminal 1BF (harness-side).
• Is there continuity?
19 INSPECT CONTROL CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Check for continuity between drive-by-wire- then go to Step 22.
relay A (harness-side) and PCM terminal 1AX
(harness-side).
20 INSPECT THROTTLE POSITION SENSOR NO.1 Yes Go to the next step.
OUTPUT VOLTAGE No Check the throttle position sensor No.1 and related circuits
• Turn the ignition switch to off. and terminal.
• Connect the PCM connector. (See01-40-32 THROTTLE POSITION (TP) SENSOR
• Turn ignition switch to the ON position (Engine INSPECTION[L3 WITH TC].)
off). Repair or replace if necessary, then go to Step 22.
• Check voltage between PCM terminal 2AK and
body ground.
• Is the voltage 0.40— 0.60 V?
21 INSPECT THROTTLE POSITION SENSOR NO.2 Yes Go to the next step.
OUTPUT VOLTAGE No Check the throttle position sensor No.2 and related circuits
• Turn ignition switch to the ON position (Engine and terminal.
off). (See01-40-32 THROTTLE POSITION (TP) SENSOR
• Check the voltage between PCM terminal 2AL INSPECTION[L3 WITH TC].)
and body ground. Repair or replace as necessary, then go to the next step.
• Is the voltage 4.40— 4.60 V?
22 VERIFY TROUBLESHOOTING OF DTC P2101 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and run it at idle.
• Turn ignition switch to OFF then ON (Engine
off).
• Is the same DTC present?
23 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–201
1871-1U-06B(01-02).fm 202 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2102[L3 WITH TC]
id010239811200

DTC P2102 Throttle actuator circuit low input

• PCM monitors the throttle actuator circuit current. If the PCM detects that the throttle actuator circuit current
is excessively low, the PCM determines that the throttle actuator circuit was a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Open circuit between throttle body terminal F and PCM terminal 2A
• Open circuit between throttle body terminal E and PCM terminal 2B
• Short to ground circuit between throttle body terminal F and PCM terminal 2A
POSSIBLE
• Short to ground circuit between throttle body terminal E and PCM terminal 2B
CAUSE
• Poor connection of throttle body or PCM connector
• Throttle actuator malfunction
• PCM malfunction
THROTTLE ACTUATOR
(THROTTLE BODY) PCM

9
4 5 6 7
F 2A

4 8 7
E 2B

THROTTLE BODY PCM

HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
F E
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–202
1871-1U-06B(01-02).fm 203 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 VERIFY RELATED PENDING CODE AND Yes Go to appropriate the DTC troubleshooting procedure, then
STORED DTCS go to Step 10.
• Turn ignition switch to OFF, then ON (Engine No Go to the next step.
off).
• Verify pending and/or stored DTCs using the
M-MDS.
• Is the DTC P2100 also present? 01-02
4 INSPECT THROTTLE BODY CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 10.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the throttle body connector.
• Inspect for poor connection (such as damaged,
pulled-put pins, corrosion).
• Is there any malfunction?
5 INSPECT POWER SUPPLY CIRCUIT OF Yes Go to the next step.
THROTTLE ACTUATOR FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Turn ignition switch to the ON position (Engine then go to Step 10.
off).
• Measure the voltage between throttle body
terminal F (harness-side) and body ground.
• Is the voltage B+?
6 INSPECT POWER SUPPLY CIRCUIT OF Yes Repair or replace the wiring harness for a short to ground
THROTTLE ACTUATOR FOR SHORT TO circuit, then go to Step 10.
GROUND No Go to the next step.
• Turn the ignition switch to off.
• Check continuity between throttle body
terminal F (harness-side) and body ground.
• Is there continuity?
7 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
8 INSPECT CONTROL CIRCUIT OF THROTTLE Yes Repair or replace the wiring harness for an open circuit,
ACTUATOR FOR OPEN CIRCUIT then go to Step 10.
• Turn the ignition switch to off. No Go to the next step.
• Check for continuity between throttle body
terminal E (harness-side) and PCM terminal
2B (harness-side).
• Is there continuity?
9 INSPECT THROTTLE ACTUATOR Yes Go to the next step.
• Inspect the throttle actuator. No Replace the throttle body, then go to the next step.
(See01-13-12 THROTTLE ACTUATOR
INSPECTION[L3 WITH TC].)
• Is it normal?
10 VERIFY TROUBLESHOOTING OF DTC P2102 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start engine and warm it up completely.
• Is the same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–203
1871-1U-06B(01-02).fm 204 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2103[L3 WITH TC]
id010239811300

DTC P2103 Throttle actuator circuit high input

• PCM monitors the throttle actuator circuit current. If the PCM detects that the throttle actuator circuit current
is excessively high, the PCM determines that the electronic throttle actuator circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Short to the power supply between throttle body terminal E and PCM terminal 2B
POSSIBLE
• Throttle actuator malfunction
CAUSE
• PCM malfunction
THROTTLE ACTUATOR
(THROTTLE BODY) PCM

4
F 2A

3
E 2B

THROTTLE BODY PCM

HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
F E
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–204
1871-1U-06B(01-02).fm 205 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT CONTROL CIRCUIT OF THROTTLE Yes Repair or replace the wiring harness for a short to power
ACTUATOR FOR SHORT TO POWER SUPPLY supply, then go to Step 5.
• Turn the ignition switch to off. No Go to the next step.
• Disconnect the throttle body and PCM
connectors.
• Turn ignition switch to the ON position (Engine
off). 01-02
• Measure the voltage between throttle body
terminal E (harness-side) and body ground.
• Is the voltage B+?
4 INSPECT THROTTLE ACTUATOR Yes Go to the next step.
• Inspect the throttle actuator. No Replace the throttle body, then go to the next step.
(See01-13-12 THROTTLE ACTUATOR
INSPECTION[L3 WITH TC].)
• Is it normal?
5 VERIFY TROUBLESHOOTING OF DTC P2103 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is the same DTC present?
6 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2107[L3 WITH TC]
id010239811400

DTC P2107 Throttle actuator control module processor problem

• Throttle actuator control module internal processor error
Diagnostic support note
DETECTION • This is a continuous monitor (CCM).
CONDITION • The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
POSSIBLE
• Throttle actuator control module internal processor malfunction
CAUSE

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY TROUBLESHOOTING OF P2107 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?

01-02–205
1871-1U-06B(01-02).fm 206 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2108[L3 WITH TC]
id010239811500

DTC P2108 Throttle actuator control module performance problem

• If the PCM detects either of the following conditions, the PCM determines that throttle actuator control
system has a malfunction.
— TP sensor power supply voltage below 4.4 V
— TP sensor No.1 output voltage below 0.20 V or above 4.85 V (DTC P0122 or P0123)
— TP sensor No.2 output voltage below 0.20 V or above 4.85 V (DTC P0222 or P0223)
DETECTION — PCM internal circuit for TP sensor No.1 input circuit malfunction.
CONDITION
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• TP sensor No.1 malfunction
• TP sensor No.2 malfunction
• Connector or terminal malfunction
• Open circuit between throttle body terminal A and PCM terminal 2AK
POSSIBLE • Short to ground between throttle body terminal A and PCM terminal 2AK
CAUSE • Open circuit between throttle body terminal B and PCM terminal 2AO
• Open circuit between throttle body terminal D and PCM terminal 2AP
• Short to the power supply between throttle body terminal A and PCM terminal 2AK
• Short to the power supply between throttle body terminal C and PCM terminal 2AL
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE AND Yes Go to appropriate DTC troubleshooting procedure, then go
STORED DTCS to Step 7.
• Turn ignition switch to OFF, then ON (Engine No Go to the next step.
off).
• Verify pending and/or stored DTCs using the
M-MDS.
• Is the DTC P0122, P0123, P0222 or P0223
also present?
4 VERIFY INTERMITTENT MALFUNCTION AT TP Yes Repair or replace malfunctioning part, according to
SENSOR NO.1 CIRCUIT inspection result, the go to Step 7.
• Perform the INTERMITTENT No Go to the next step.
TROUBLESHOOTING procedure to TP sensor
No.1 related harnesses and connectors.
(See01-03-76 INTERMITTENT CONCERN
TROUBLESHOOTING[L3 WITH TC].)
• Is there any malfunction?

01-02–206
1871-1U-06B(01-02).fm 207 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 VERIFY INTERMITTENT MALFUNCTION AT TP Yes Repair or replace malfunctioning part, according to
SENSOR NO.2 CIRCUIT inspection result, the go to Step 7.
• Perform the INTERMITTENT No Go to the next step.
TROUBLESHOOTING procedure to TP sensor
No.2 related harnesses and connectors.
(See01-03-76 INTERMITTENT CONCERN
TROUBLESHOOTING[L3 WITH TC].) 01-02
• Is there any malfunction
6 INSPECT TP SENSOR Yes Go to the next step.
• Inspect the TP sensor. No Replace the throttle body, then go to nest step.
• Is the TP sensor normal?
7 VERIFY TROUBLESHOOTING OF DTC P2108 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn ignition switch to the ON position (Engine
off).
• Is the PENDING CODE for this DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2119[L3 WITH TC]
id010239811600

DTC P2119 Throttle actuator control throttle body range/performance problem

• The PCM compares the TP with the default TP when the ignition switch is off. If the TP is higher than the
default TP, the PCM determines that there is a throttle actuator control throttle body range/performance
problem.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunctioning condition in the first drive cycles.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Throttle actuator malfunction
POSSIBLE
• Throttle valve malfunction
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT THROTTLE ACTUATOR Yes Replace the throttle body, then go to Step 5.
• Inspect the throttle actuator. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
(See01-13-12 THROTTLE ACTUATOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
4 INSPECT TP SENSOR Yes Replace the TP sensor, then go to the next step.
• Inspect the TP sensor. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
(See01-13-12 THROTTLE ACTUATOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?

01-02–207
1871-1U-06B(01-02).fm 208 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 VERIFY TROUBLESHOOTING OF DTC P2119 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch to the ON position
(Engine off), then off.
• Is the PENDING CODE for this DTC present?
6 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2122[L3 WITH TC]
id010239811700

DTC P2122 Accelerator pedal position (APP) sensor No.1 circuit low input
• The PCM monitors the APS No.1 signal. If the PCM detects that the APP sensor No.1 voltage is below 0.2
V, the PCM determines that the APP sensor No.1 circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• APP sensor malfunction
• Connector or terminal malfunction
POSSIBLE • Open circuit between APP sensor terminal F and PCM terminal 1Y
CAUSE • Short to ground circuit between APP sensor terminal F and PCM terminal 1Y
• Open circuit between APP sensor terminal D and PCM terminal 1Q
• Short to ground between APP sensor terminal D and PCM terminal 1Q
APP SENSOR PCM

4
3 5
D 1Q

3 6
F 1Y
7 8

E 1U

APP SENSOR PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
F E D
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

01-02–208
1871-1U-06B(01-02).fm 209 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 CLASSIFY APP SENSOR OR HARNESS Yes Go to the next step.
MALFUNCTION No Go to step 5.
• Connect the M-MDS.
• Access the APP1 PID.
• Disconnect the throttle body connector.
• Connect a jumper wire between APP sensor
terminals D and F (harness-side).
• Is the PID approx. 100%?
4 INSPECT APP SENSOR Yes Inspect for poor APP sensor connector terminal D
• Perform the APP sensor inspection. connection. Repair or replace if necessary, then go to Step
(See01-40-33 ACCELERATOR PEDAL 9.
POSITION (APP) SENSOR INSPECTION[L3 No Replace the APP sensor, then go to Step 9.
WITH TC].)
• Is the APP sensor normal?
5 INSPECT POWER SUPPLY CIRCUIT VOLTAGE Yes Go to the next step.
AT APP SENSOR CONNECTOR No Repair or replace open circuit between APP sensor
• Turn ignition switch to the ON position (Engine connector terminal D and PCM connector terminal 1Q
off). (harness-side).
• Measure the voltage at APP sensor terminal D Then, then go to Step 9.
(harness-side).
• Is the voltage within 4.5— 5.5 V?
6 VERIFY APP1 SIGNAL CIRCUIT FOR SHORT Yes Repair or replace the suspected wiring harness, then go to
TO GROUND the next step.
• Inspect continuity between APP sensor No Go to the next step.
terminal D and body ground.
• Is this continuity?
7 VERIFY APP1 SIGNAL CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace the suspected wiring harness, then go to
• Turn the ignition switch to off. Step 9.
• Inspect continuity between APP sensor
terminal F (harness-side) and PCM terminal 1Y
(harness-side).
• Is there continuity?
8 VERIFY APP1 SIGNAL CIRCUIT FOR SHORT Yes Repair or replace the suspected wiring harness, then go to
TO GROUND the next step.
• Inspect for continuity between APP sensor No Go to the next step.
terminal F (harness-side) and body ground.
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P2122 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is the same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
01-02–209
1871-1U-06B(01-02).fm 210 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2123[L3 WITH TC]
id010239811800

DTC P2123 Accelerator pedal position (APP) sensor No.1 circuit high input
• The PCM monitors the APP sensor No.1 signal. If the PCM detects that the APP sensor No.1 voltage is
above 4.5 V, the PCM determines that the APP sensor No.1 circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• APP sensor malfunction
• Connector or terminal malfunction
POSSIBLE
• Open circuit between APP sensor terminal E and PCM terminal 1U
CAUSE
• Open circuit between APP sensor terminal F and PCM terminal 1Y
• Short to power supply circuit between APP sensor terminal F and PCM terminal 1Y
APP SENSOR PCM

5
3 4 9 8
D 1Q

3 4 6 9 8
F 1Y

3 4 8
E 1U
7

APP SENSOR PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
F E D
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT APP SENSOR CONNECTOR Yes Go to the next step.
• Turn the ignition switch to off. No Connect the connector securely, then go to Step 10.
• Verify that the APP sensor connector is
connected securely.
• Is the connector normal?

01-02–210
1871-1U-06B(01-02).fm 211 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT APP SENSOR CONNECTOR FOR Yes Repair or replace the suspected terminal, then go to Step
POOR CONNECTION 10.
• Disconnect the APP sensor connector. No Go to the next step.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
5 INSPECT APP SENSOR Yes Go to the next step. 01-02
• Perform the APP sensor inspection. No Replace the APP sensor, then go to Step 10.
(See01-40-33 ACCELERATOR PEDAL
POSITION (APP) SENSOR INSPECTION[L3
WITH TC].)
• Is the APP sensor normal?
6 INSPECT APP1 SIGNAL CIRCUIT FOR SHORT Yes Repair or replace a short to power supply. Then, go to Step
TO POWER SUPPLY 10.
• Turn ignition switch to the ON position (Engine No Go to the next step.
off).
• Measure the voltage between APP sensor
terminal F (harness-side) and body ground.
• Is the voltage above 4.8 V?
7 VERIFY APP SENSOR GROUND CIRCUIT FOR Yes Repair or replace for an open circuit between APP sensor
OPEN CIRCUIT terminal F (harness-side) and PCM connector terminal 1Y
• Disconnect the PCM connector. (harness-side). Then, go to Step 10.
• Inspect for continuity between APP sensor No Go to the next step.
terminal E (harness side) and PCM terminal
1U (harness side).
• Is there continuity?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 VERIFY TP SIGNAL CIRCUIT FOR SHORT TO Yes Repair or replace the suspected wiring harness, then go to
POWER SUPPLY CIRCUIT the next step.
• Inspect for continuity between throttle body No Go to the next step.
terminals D and F (harness side).
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P2123 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is the same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–211
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2127[L3 WITH TC]
id010239811900

DTC P2127 Accelerator pedal position (APP) sensor No.2 circuit low input
• The PCM monitors the APP sensor No.2 signal. If the PCM detects that the APP sensor No.2 voltage is
below 0.2 V, the PCM determines that the APP sensor No.2 circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• APP sensor malfunction
• Connector or terminal malfunction
POSSIBLE
• Open circuit between APP sensor terminal C and PCM terminal 1AC
CAUSE
• Short to ground circuit between APP sensor terminal C and PCM terminal 1AC
• Open circuit between APP sensor terminal A and PCM terminal 1AJ
APP SENSOR PCM

4
3 5
A 1AJ

3 6
C 1AC
7

B 1AV

APP SENSOR PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
F E D
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

01-02–212
1871-1U-06B(01-02).fm 213 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. 01-02
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 CLASSIFY APP SENSOR OR HARNESS Yes Go to the next step.
MALFUNCTION No Go to step 5.
• Connect the M-MDS.
• Access the APP2 PID.
• Disconnect the throttle body connector.
• Connect a jumper wire between APP sensor
terminals A and C (harness-side).
• Is the PID approx. 100%?
4 INSPECT APP SENSOR Yes Inspect for poor APP sensor connector terminal A
• Perform the APP sensor inspection. connection. Repair or replace if necessary, then go to Step
(See01-40-33 ACCELERATOR PEDAL 8.
POSITION (APP) SENSOR INSPECTION[L3 No Replace the APP sensor, then go to Step 8.
WITH TC].)
• Is the APP sensor normal?
5 INSPECT POWER SUPPLY CIRCUIT VOLTAGE Yes Go to the next step.
AT APP SENSOR CONNECTOR No Repair or replace for an open circuit between APP sensor
• Turn ignition switch to the ON position (Engine connector terminal A and PCM connector terminal 1AJ
off). (harness-side).
• Measure the voltage at APP sensor terminal A Then, then go to Step 8.
(harness-side).
• Is the voltage within 4.5— 5.5 V?
6 VERIFY APP2 SIGNAL CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace the suspected wiring harness, then go to
• Turn the ignition switch to off. Step 8.
• Inspect for continuity between APP sensor
terminal C (harness-side) and PCM terminal
1AC (harness-side).
• Inspect for continuity between APP sensor
terminal A (harness-side) and PCM terminal
1AT (harness-side).
• Is there continuity?
7 VERIFY APP2 SIGNAL CIRCUIT FOR SHORT Yes Repair or replace the suspected wiring harness, then go to
TO GROUND the next step.
• Inspect for continuity between APP sensor No Go to the next step.
terminal C (harness-side) and body ground.
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P2127 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start engine and warm it up completely.
• Is the same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–213
1871-1U-06B(01-02).fm 214 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2128[L3 WITH TC]
id010239812000

DTC P2128 Accelerator pedal position (APP) sensor No.2 circuit high input
• The PCM monitors the APP sensor No.2 signal. If the PCM detects that the APP sensor No.2 voltage is
above 4.5 V, the PCM determines that the APP sensor No.2 circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• APP sensor malfunction
POSSIBLE • Connector or terminal malfunction
CAUSE • Open circuit between APP sensor terminal B and PCM terminal 1AV
• Short to power supply circuit between APP sensor terminal C and PCM terminal 1AC
APP SENSOR PCM

5
3 4 9 8
A 1AJ

3 4 6 9 8
C 1AC

3 4 8
B 1AV
7

APP SENSOR PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
E D
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT APP SENSOR CONNECTOR Yes Go to the next step.
• Turn the ignition switch to off. No Connect the connector securely, then go to Step 10.
• Verify that the APP sensor connector is
connected securely.
• Is the connector normal?

01-02–214
1871-1U-06B(01-02).fm 215 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT APP SENSOR CONNECTOR FOR Yes Repair or replace the suspected terminal, then go to Step
POOR CONNECTION 10.
• Disconnect the APP sensor connector. No Go to the next step.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
5 INSPECT APP SENSOR Yes Go to the next step. 01-02
• Perform the APP sensor inspection. No Replace the APP sensor, then go to Step 10.
(See01-40-33 ACCELERATOR PEDAL
POSITION (APP) SENSOR INSPECTION[L3
WITH TC].)
• Is the APP sensor normal?
6 INSPECT APP2 SIGNAL CIRCUIT FOR SHORT Yes Repair or replace for a short to power supply. Then, go to
TO POWER SUPPLY Step 10.
• Turn ignition switch to the ON position (Engine No Go to the next step.
off).
• Measure the voltage between APP sensor
terminal C (harness-side) and body ground.
• Is the voltage above 4.5 V?
7 VERIFY APP SENSOR GROUND CIRCUIT FOR Yes Repair or replace for an open circuit between APP sensor
OPEN CIRCUIT terminal C (harness-side) and PCM connector terminal
• Disconnect the PCM connector. 1AC (harness-side). Then, go to Step 10.
• Inspect the continuity between APP sensor No Go to the next step.
terminal B (harness-side) and PCM terminal
1AV (harness-side).
• Is there continuity?
8 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
9 VERIFY APP SIGNAL CIRCUIT FOR SHORT TO Yes Repair or replace the suspected wiring harness, then go to
POWER SUPPLY CIRCUIT the next step.
• Inspect the continuity between throttle body No Go to the next step.
terminals A and C (harness-side).
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P2128 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is the same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–215
1871-1U-06B(01-02).fm 216 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2135[L3 WITH TC]
id010239812100

DTC P2135 TP sensor No.1/No.2 voltage correlation problem

• The PCM compares the input voltage from TP sensor No.1 with the input voltage from TP sensor No.2
when the engine is running. If the difference is more than the specification, the PCM determines that there
is a TP sensor No.1/No.2 voltage correlation problem.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• TP sensor No.1 malfunction
POSSIBLE • TP sensor No.2 malfunction
CAUSE • Connector or terminal malfunction
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT THROTTLE BODY CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 6.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the throttle body connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT TP SENSOR Yes Replace the throttle body, then go to Step 6.
• Inspect the TP sensor. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
(See01-40-32 THROTTLE POSITION (TP) INSTALLATION[L3 WITH TC].)
SENSOR INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
6 VERIFY TROUBLESHOOTING OF DTC P2135 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
7 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–216
1871-1U-06B(01-02).fm 217 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2138[L3 WITH TC]
id010239812200

DTC P2138 APP sensor No.1/No.2 voltage correlation problem

• The PCM compares the input voltage from APP sensor No.1 with the input voltage from APP sensor No.2
when the engine is running. If the difference is more than the specification, the PCM determines that there
is an APP sensor No.1/No.2 angle correlation problem.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM). 01-02
• The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• APP sensor No.1 malfunction
POSSIBLE • APP sensor No.2 malfunction
CAUSE • Connector or terminal malfunction
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT APP SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 6.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the APP sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT APP SENSOR Yes Replace the APP sensor, then go to Step 6.
• Inspect the APP sensor. (See01-13-17 ACCELERATOR PEDAL REMOVAL/
(See01-40-33 ACCELERATOR PEDAL INSTALLATION[L3 WITH TC].)
POSITION (APP) SENSOR INSPECTION[L3 No Go to the next step.
WITH TC].)
• Is there any malfunction?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to the next step.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
6 VERIFY TROUBLESHOOTING OF DTC P2138 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
7 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–217
1871-1U-06B(01-02).fm 218 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2177[L3 WITH TC]
id010239812300

DTC P2177 Fuel system too lean at off idle

• PCM monitors the short term fuel trim (SHRTFT) and long term fuel trim (LONGFT) during closed loop fuel
control at off-idle. If the LONGFT and the sum total of these fuel trims exceed the preprogrammed criteria,
the PCM determines that the fuel system is too lean at off-idle.
Diagnostic support note
DETECTION • This is a continuous monitor. (Fuel system)
CONDITION • MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Misfire
• Front HO2S deterioration
• Front HO2S heater malfunction
• MAF sensor malfunction
• Pressure regulator malfunction
• Fuel pressure sensor malfunction
• Relief valve (built-in fuel delivery pipe) malfunction
• Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
• High pressure fuel pump malfunction
POSSIBLE • Fuel pump malfunction
CAUSE • Fuel filter clogged or restricted
• Fuel leakage on fuel line
• Exhaust system leakage
• Purge solenoid valve improper operation
• Purge solenoid valve malfunction (stuck open)
• Purge solenoid hoses improper connection
• Air suction in intake-air system
• Insufficient engine compression
• Variable valve timing control system improper operation
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Fuel system related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes If misfire the DTC is present, go to Step 8.
STORED DTCS If other DTCs is present, go to the applicable DTC
• Turn the ignition switch to off, then to the ON inspection.
position (Engine off). (See01-02-13 DTC TABLE[L3 WITH TC].)
• Verify related pending code or stored DTCs. No If driveability concern is present, go to Step 8.
• Are other DTCs present? If not, go to the next step.
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for DTC on FREEZE
• Is DTC P2177 on FREEZE FRAME DATA? FRAME DATA.
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the sensor and excessive resistance in related
(IGNITION SWITCH TO THE ON POSITION/ wiring harnesses.
IDLE) Repair if necessary.
• Access the APP1, APP2, ECT, MAF, TP and Then go to Step 20.
VSS PIDs using the M-MDS. No Go to the next step.
• Is there any signal that is far out of specification
when the ignition switch is at the ON position
and the engine runs?

01-02–218
1871-1U-06B(01-02).fm 219 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
6 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the sensor and related wiring harnesses repair or
UNDER TROUBLE CONDITION replace it.
• Inspect the same PIDs as Step 5 while Then go to Step 20.
simulating FREEZE FRAME DATA condition. No Go to the next step.
• Is there any signal which causes drastic
changes?
7 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step. 01-02
FRONT HO2S No Visually inspect for any gas leakage between the exhaust
• Access the O2S11 for P2177 PID using the M- manifold and the front HO2S.
MDS. Then go to Step 20.
• Check the PID under following accelerator
pedal condition in NEUTRAL.
• Is the PID reading normal?
— –0.1— 0.1 A when idle
— More than 0.25 mA just after release of
accelerator pedal (lean condition).
8 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
MAF SENSOR No Replace the MAF/IAT sensor, then go to Step 20.
• Connect the M-MDS to the DLC-2.
• Start the engine.
• Access the MAF PID.
• Verify that the MAF PID changes quickly
according to engine speed.
• Is the PID normal?
9 INSPECT FOR EXCESSIVE AIR SUCTION OF Yes Repair or replace the source of air suction, then go to Step
INTAKE AIR SYSTEM 20.
• Visually inspect for loosen, cracks or damages No Go to the next step.
hoses on intake-air system.
• Is there any malfunction?
10 INSPECT PURGE SOLENOID OPERATION Yes Go to the next step.
• Perform the Purge Control System Inspection. No Repair or replace the malfunctioning part according to
(See01-03-78 ENGINE CONTROL SYSTEM inspection result, then go to Step 20.
OPERATION INSPECTION[L3 WITH TC].)
• Does the purge control system work properly?
11 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 15.
• Access and monitor FUEL_PRES PID. No Go to the next step.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
12 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 14.
• Is the vehicle accelerate performance
normally?
13 INSPECT FUEL PRESSURE SENSOR Yes Go to Step 15.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 20.
• Is fuel leakage found?
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
14 INSPECT HIGH PRESSURE FUEL PUMP Yes Go to Step 20.
• Replace the high pressure fuel pump No Go to the next step.
• Monitor FUEL_PRES PID
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
15 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between fuel No Inspect for following:
pump and high pressure fuel pump. • Fuel line restriction
• Measure the low side fuel pressure. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If okay replace the fuel pump. Then go to Step 20.
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the
specified?

01-02–219
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
16 INSPECT IGNITION SYSTEM Yes Go to the next step.
• Perform the spark test. No Repair or replace the malfunctioning part according to
(See01-03-78 ENGINE CONTROL SYSTEM spark test result, then go to Step 20.
OPERATION INSPECTION[L3 WITH TC].)
• Is strong blue spark visible at each cylinder?
17 INSPECT ENGINE COMPRESSION Yes Go to the next step.
• Inspect the engine compression. No Implement the engine overhaul for repairs, then go to Step
(See01-10-9 COMPRESSION 20.
INSPECTION[L3 WITH TC].)
• Is it normal?
18 INSPECT VARIABLE VALVE TIMING CONTROL Yes Go to the next step.
SYSTEM OPERATION No Repair or replace the malfunctioning part according to
• Inspect the variable valve timing control system inspection results, then go to Step 20.
operation.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the variable valve timing control system
work properly?
19 INSPECT FUEL INJECTOR OPERATION Yes Go to the next step.
• Remove the fuel injector. No Replace the fuel injector, then go to the next step.
• Inspect the fuel injector (resistance, injection
amount).
(See01-14-27 FUEL INJECTOR
INSPECTION[L3 WITH TC].)
• Is the fuel injector normal?
20 VERIFY TROUBLESHOOTING OF DTC P2177 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the PCM Adaptive Memory Produce
Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
21 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2178[L3 WITH TC]
id010239812400

DTC P2178 Fuel system too rich at off idle

• PCM monitors the short term fuel trim (SHRTFT) and long term fuel trim (LONGFT) during closed loop fuel
control at off-idle. If the LONGFT and the sum total of these fuel trims exceed the preprogrammed criteria,
the PCM determines that fuel system is too rich at off-idle.
Diagnostic support note
DETECTION • This is a continuous monitor. (Fuel system)
CONDITION • MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.

01-02–220
1871-1U-06B(01-02).fm 221 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2178 Fuel system too rich at off idle
• Misfire
• Front HO2S deterioration
• Front HO2S heater malfunction
• MAF sensor malfunction
• Pressure regulator malfunction
• Fuel pressure sensor malfunction
• Relief valve (built-in fuel delivery pipe) malfunction
• Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
01-02
POSSIBLE • High pressure fuel pump malfunction
CAUSE • Fuel pump malfunction
• EGR valve improper operation
• Variable swirl control improper operation
• Purge solenoid valve improper operation
• Purge solenoid valve malfunction (stuck open)
• Purge solenoid hoses improper connection
• PCV valve malfunction
• Variable valve timing control system improper operation
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Fuel system related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes If misfire the DTC is present, go to Step 8.
STORED DTCS If other DTCs is present, go to the applicable DTC
• Turn the ignition switch to off, then to the ON inspection.
position (Engine off). (See01-02-13 DTC TABLE[L3 WITH TC].)
• Verify related pending code or stored DTCs. No If driveability concern is present, go to Step 8.
• Are other DTCs present? If not, go to the next step.
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for DTC on FREEZE
• Is DTC P2178 on FREEZE FRAME DATA? FRAME DATA.
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the sensor and excessive resistance in related
(IGNITION SWITCH TO THE ON POSITION/ wiring harnesses.
IDLE) Repair if necessary.
• Access the APP1, APP2, ECT, MAF, TP and Then go to Step 19.
VSS PIDs using the M-MDS. No Go to the next step.
• Is there any signal that is far out of specification
when the ignition switch is at the ON position
and the engine runs?
6 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the sensor and related wiring harnesses, repair or
UNDER TROUBLE CONDITION replace it.
• Inspect the same PIDs as Step 5 while Then go to Step 19.
simulating FREEZE FRAME DATA condition. No Go to the next step.
• Is there any signal which causes drastic
changes?
7 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
FRONT HO2S No Visually inspect for any gas leakage between the exhaust
• Access the O2S11 for P2177 PID using the M- manifold and the front HO2S.
MDS. Then go to Step 19.
• Check the PID under following accelerator
pedal condition in NEUTRAL.
• Is the PID reading normal?
— –0.1— 0.1 A when idle
— More than 0.25 mA just after release of
accelerator pedal (lean condition)

01-02–221
1871-1U-06B(01-02).fm 222 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
8 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
MAF SENSOR No Replace the MAF/IAT sensor, then go to Step 19.
• Connect the M-MDS to the DLC-2
• Start the engine.
• Access the MAF PID.
• Verify that the MAF PID changes quickly
according to engine speed.
• Is the PID normal?
9 INSPECT PURGE SOLENOID OPERATION Yes Go to the next step.
• Perform the Purge Control System Inspection. No Repair or replace the malfunctioning part according to
(See01-03-78 ENGINE CONTROL SYSTEM inspection result, then go to Step 19.
OPERATION INSPECTION[L3 WITH TC].)
• Does the purge control system work properly?
10 INSPECT PCV VALVE OPERATION Yes Go to the next step.
• Inspect the PCV valve operation. No Replace the PCV valve, then go to Step 19
(See01-16-14 POSITIVE CRANKCASE
VENTILATION (PCV) VALVE INSPECTION[L3
WITH TC].)
• Is the PCV valve normal?
11 INSPECT EGR VALVE OPERATION Yes Go to the next step.
• Perform the EGR Control System Inspection. No Repair or replace the malfunctioning part according to
(See01-03-78 ENGINE CONTROL SYSTEM inspection result, then go to Step 19.
OPERATION INSPECTION[L3 WITH TC].)
• Does the EGR control system work properly?
12 INSPECT VARIABLE SWIRL CONTROL Yes Go to the next step.
OPERATION No Repair or replace the malfunctioning part according to
• Perform the Variable Swirl Control Operation inspection result, then go to Step 19.
Inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the variable swirl control work properly?
13 INSPECT VARIABLE VALVE TIMING CONTROL Yes Go to the next step.
SYSTEM OPERATION No Repair or replace the malfunctioning part according to
• Inspect the variable valve timing control system inspection results, then go to Step 19.
operation.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the variable valve timing control system
work properly?
14 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 18.
• Access and monitor FUEL_PRES PID. No Go to the next step.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
15 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 17.
• Is the vehicle accelerate performance
normally?
16 INSPECT FUEL PRESSURE SENSOR Yes Go to the next step.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 19.
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
17 INSPECT HIGH PRESSURE FUEL PUMP Yes Go to Step 19.
• Replace the high pressure fuel pump No Go to the next step.
• Monitor FUEL_PRES PID
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)

01-02–222
1871-1U-06B(01-02).fm 223 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
18 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between fuel No Inspect for following:
pump and high pressure fuel pump. • Fuel line restriction
• Measure the low side fuel pressure. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If okay replace the fuel pump. Then go to the next step.
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the 01-02
specified?
19 VERIFY TROUBLESHOOTING OF DTC P2178 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the PCM Adaptive Memory Produce
Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
20 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2187[L3 WITH TC]
id010239812500

DTC P2187 Fuel system too lean at idle

• PCM monitors the short term fuel trim (SHRTFT) and long term fuel trim (LONGFT) during closed loop fuel
control at idle. If the LONGFT and the sum total of these fuel trims exceed the preprogrammed criteria, the
PCM determines that fuel system is too lean at idle.
Diagnostic support note
DETECTION • This is a continuous monitor. (Fuel system)
CONDITION • MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Misfire
• Front HO2S deterioration
• Front HO2S heater malfunction
• MAF sensor malfunction
• Pressure regulator malfunction
• Fuel pressure sensor malfunction
• Relief valve (built-in fuel delivery pipe) malfunction
• Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
• High pressure fuel pump malfunction
POSSIBLE
• Fuel pump malfunction
CAUSE
• Fuel filter clogged or restricted
• Fuel leakage on fuel line from fuel delivery pipe and fuel pump
• Exhaust system leakage
• Purge solenoid valve malfunction
• Purge solenoid hoses improper connection
• Air suction in intake-air system
• Insufficient engine compression
• Variable valve timing control system improper operation
• PCM malfunction

01-02–223
1871-1U-06B(01-02).fm 224 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Fuel system related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes If misfire DTC is present, go to Step 8.
STORED DTCS If other DTC is present, go to the applicable DTC
• Turn the ignition switch to off, then to the ON inspection.
position (Engine off). (See01-02-13 DTC TABLE[L3 WITH TC].)
• Verify related pending code or stored DTCs. No If driveability concern is present, go to Step 8.
• Are other DTCs present? If not, go to the next step.
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting procedures for DTC on FREEZE
• Is DTC P2177 on FREEZE FRAME DATA? FRAME DATA.
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the sensor and excessive resistance in related
(IGNITION SWITCH TO THE ON POSITION/ wiring harnesses.
IDLE) Repair if necessary.
• Access the APP1, APP2, ECT, MAF and TP Then go to Step 20.
PIDs using the M-MDS.) No Go to the next step.
• Is there any signal that is far out of specification
when the ignition switch is at the ON position
and the engine runs?
6 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the sensor and related wiring harnesses, repair or
UNDER TROUBLE CONDITION replace it.
• Inspect the same PIDs as Step 4 while Then go to Step 20.
simulating FREEZE FRAME DATA condition. No Go to the next step.
• Is there any signal which causes drastic
changes?
7 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
FRONT HO2S No Visually inspect for any gas leakage between exhaust
• Access the O2S11 for P2177 PID using the M- manifold and front HO2S.
MDS. Then go to Step 20.
• Check the PID under following accelerator
pedal condition in NEUTRAL.
• Is the PID reading normal?
— –0.1— 0.1 A when idle
— Below 0.25 mA just after release of
accelerator pedal (lean condition)
8 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
MAF SENSOR No Replace the MAF/IAT sensor, then go to Step 20.
• Connect the M-MDS to the DLC-2.
• Start the engine.
• Access the MAF PID.
• Verify that the MAF PID changes quickly
according to engine speed.
• Is the PID normal?
9 INSPECT FOR EXCESSIVE AIR SUCTION OF Yes Repair or replace the source of air suction, then go to Step
INTAKE AIR SYSTEM 20.
• Visually inspect for loosen, cracks or damages No Go to the next step.
hoses on intake-air system.
• Is there any malfunction?

01-02–224
1871-1U-06B(01-02).fm 225 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
10 INSPECT PURGE SOLENOID VALVE STUCK Yes Replace the purge solenoid valve.
OPEN Then go to Step 20.
• Turn the ignition switch to off. No Go to the next step.
• Disconnect the both hoses from purge solenoid
valve.
• Blow the air through purge solenoid valve.
• Does the air blow through? 01-02
11 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 15.
• Access and monitor FUEL_PRES PID. No Go to the next step.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
12 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 14.
• Is the vehicle accelerate performance
normally?
13 INSPECT FUEL PRESSURE SENSOR Yes Go to Step 15.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 20.
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
14 INSPECT HIGH PRESSURE FUEL PUMP Yes Go to Step 20.
• Replace the high pressure fuel pump No Go to the next step.
• Monitor FUEL_PRES PID
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
15 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between fuel No Inspect for following:
pump and high pressure fuel pump. • Fuel line restriction
• Measure the low side fuel pressure. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If okay replace the fuel pump. Then go to Step 20.
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the
specified?
16 INSPECT IGNITION SYSTEM Yes Go to the next step.
• Perform the spark test. No Repair or replace the malfunctioning part according to
(See01-03-78 ENGINE CONTROL SYSTEM spark test results, then go to Step 20.
OPERATION INSPECTION[L3 WITH TC].)
• Is strong blue spark visible at each cylinder?
17 INSPECT ENGINE COMPRESSION Yes Go to the next step.
• Inspect the engine compression. No Implement the engine overhaul for repairs, then go to Step
(See01-10-9 COMPRESSION 20.
INSPECTION[L3 WITH TC].)
• Is it normal?
18 INSPECT VARIABLE VALVE TIMING CONTROL Yes Go to the next step.
SYSTEM OPERATION No Repair or replace the malfunctioning part according to
• Inspect the variable valve timing control system inspection results, then go to Step 20.
operation.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the variable valve timing control system
work properly?
19 INSPECT FUEL INJECTOR OPERATION Yes Go to the next step.
• Remove the fuel injector. No Replace the fuel injector, then go to the next step.
• Inspect the fuel injector (resistance, injection
amount).
(See01-14-27 FUEL INJECTOR
INSPECTION[L3 WITH TC].)
• Is the fuel injector normal?

01-02–225
1871-1U-06B(01-02).fm 226 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
20 VERIFY TROUBLESHOOTING OF DTC P2187 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the PCM Adaptive Memory Produce
Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
21 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2188[L3 WITH TC]
id010239812600

DTC P2188 Fuel system too rich at idle

• PCM monitors the short term fuel trim (SHRTFT) and long term fuel trim (LONGFT) during closed loop fuel
control at idle. If the LONGFT and the sum total of these fuel trims exceed the preprogrammed criteria, the
PCM determines that fuel system is too rich at idle.
Diagnostic support note
DETECTION • This is a continuous monitor. (Fuel system)
CONDITION • MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Misfire
• Front HO2S deterioration
• Front HO2S heater malfunction
• MAF sensor malfunction
• Pressure regulator malfunction
• Fuel pressure sensor malfunction
• Relief valve (built-in fuel delivery pipe) malfunction
• Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
POSSIBLE • High pressure fuel pump malfunction
CAUSE • Fuel pump malfunction
• EGR valve stuck open
• Variable swirl control improper operation
• Purge solenoid valve improper operation
• Purge solenoid valve malfunction (stuck open)
• Purge solenoid hoses improper connection
• PCV valve malfunction
• Variable valve timing control system improper operation
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(Fuel system related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–226
1871-1U-06B(01-02).fm 227 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 VERIFY RELATED PENDING CODE OR Yes If misfire the DTC is present, go to Step 8.
STORED DTCS If other DTCs is present, go to the applicable DTC
• Turn the ignition switch to off, then to the ON inspection.
position (Engine off). (See01-02-13 DTC TABLE[L3 WITH TC].)
• Verify related pending code or stored DTCs. No If driveability concern is present, go to Step 8.
• Are other DTCs present? If not, go to the next step.
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step. 01-02
DATA No Go to troubleshooting procedures for DTC on FREEZE
• Is DTC P2178 on FREEZE FRAME DATA? FRAME DATA.
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the sensor and excessive resistance in related
(IGNITION SWITCH TO THE ON POSITION/ wiring harnesses.
IDLE) Repair or if necessary.
• Access the APP1, APP2, ECT, MAF, TP and Then go to Step 19.
VSS PIDs using the M-MDS. No Go to the next step.
• Is there any signal that is far out of specification
when the ignition switch is at the ON position
and engine runs?
6 VERIFY CURRENT INPUT SIGNAL STATUS Yes Inspect the sensor and related wiring harnesses, repair or
UNDER TROUBLE CONDITION replace it.
• Inspect the same PIDs as Step 5 while Then go to Step 19.
simulating FREEZE FRAME DATA condition. No Go to the next step.
• Is there any signal which causes drastic
changes?
7 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
FRONT HO2S No Visually inspect for any gas leakage between the exhaust
• Access the O2S11 for P2177 PID using the M- manifold and the front HO2S.
MDS. Then go to Step 19.
• Check the PID under following accelerator
pedal condition in NEUTRAL.
• Is the PID reading normal?
— –0.1— 0.1 A when idle
— Below 0.25 mA just after release of
accelerator pedal (lean condition)
8 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
MAF SENSOR No Replace the MAF/IAT sensor, then go to Step 19.
• Connect the M-MDS to the DLC-2.
• Start the engine.
• Access the MAF PID.
• Verify that the MAF PID changes quickly
according to engine speed.
• Is the PID normal?
9 INSPECT PURGE SOLENOID OPERATION Yes Go to the next step.
• Perform the Purge Control System Inspection. No Repair or replace the malfunctioning part according to
(See01-03-78 ENGINE CONTROL SYSTEM inspection result, then go to Step 19.
OPERATION INSPECTION[L3 WITH TC].)
• Does the purge control system work properly?
10 INSPECT PCV VALVE OPERATION Yes Go to the next step.
• Inspect the PCV valve operation. No Replace the PCV valve, then go to Step 19.
(See01-16-14 POSITIVE CRANKCASE
VENTILATION (PCV) VALVE INSPECTION[L3
WITH TC].)
• Is the PCV valve normal?
11 INSPECT VARIABLE SWIRL CONTROL Yes Go to the next step.
OPERATION No Repair or replace the malfunctioning part according to
• Perform the Variable Swirl Control Operation inspection result, then go to Step 19.
Inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the variable swirl control work properly?

01-02–227
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
12 INSPECT VARIABLE VALVE TIMING CONTROL Yes Go to the next step.
SYSTEM OPERATION No Repair or replace the malfunctioning part according to
• Inspect the variable valve timing control system inspection results, then go to Step 18.
operation.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the variable valve timing control system
work properly?
13 INSPECT IF EGR VALVE IS STUCK OPEN Yes Clean or replace the EGR valve, then go to Step 19.
• Remove the EGR valve. No Go to the next step.
• Does the EGR valve stuck open?
14 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 18.
• Access and monitor FUEL_PRES PID. No Go to the next step.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
15 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 17.
• Is the vehicle accelerate performance
normally?
16 INSPECT FUEL PRESSURE SENSOR Yes Go to Step 19.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 19.
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
17 INSPECT HIGH PRESSURE FUEL PUMP Yes Go to Step 19.
• Replace the high pressure fuel pump No Go to the next step.
• Monitor FUEL_PRES PID
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
18 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between fuel No Inspect for following:
pump and high pressure fuel pump. • Fuel line restriction
• Measure the low side fuel pressure. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If okay replace the fuel pump. Then go to the next step.
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the
specified?
19 VERIFY TROUBLESHOOTING OF DTC P2188 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the PCM Adaptive Memory Produce
Drive Mode. (See01-02-10 OBD-II DRIVE
MODE[L3 WITH TC].)
• Is the PENDING CODE for this DTC present?
20 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–228
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2195[L3 WITH TC]
id010239812700

DTC P2195 Front HO2S signal stuck lean

• The PCM monitors the front HO2S output current when the following conditions are met. If the average
output current is more than 1.2 A for25 s, the PCM determines that the front HO2S has a malfunction.
MONITORING CONDITION
— ECT: more than 70 — 150 °C {158— 302 °F}
— Engine speed: 1,000— 3,200 rpm 01-02
— Charging efficiency: 20— 62.5%
— Output voltage from the rear HO2S: 0.2 V or above
DETECTION
CONDITION Diagnostic support note
• This is an intermittent monitor (HO2S).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• The DTCs are stored in the PCM memory.
• Front HO2S malfunction
• Fuel injector malfunction
• Insufficient fuel line pressure
• Fuel pressure sensor malfunction
• Relief valve (built-in fuel delivery pipe) malfunction
• Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
POSSIBLE
• High pressure fuel pump malfunction
CAUSE
• Exhaust gas leakage
• Air suction at intake-air system malfunction
• Fuel leakage
• MAF sensor malfunction
• ECT sensor malfunction
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the applicable DTC inspection.
STORED DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch to off, then to ON No Go to the next step.
position (Engine off).
• Verify the related PENDING CODE or stored
DTCs.
• Is the DTC P2177 or P2187 also present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to FREEZE FRAME DATA DTC inspection.
• Is DTC P2195 on FREEZE FRAME DATA? (See01-02-13 DTC TABLE[L3 WITH TC].)
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to the next step.
• Connect the M-MDS to the DLC-2. No Inspect the malfunctioning part according to the inspection
• Verify the following PIDs. results.
(See01-40-6 PCM INSPECTION[L3 WITH Then go to Step 16.
TC].)
— APP1
— APP2
— ECT
— MAF
— TP
— VSS
• Are the PIDs normal?

01-02–229
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
6 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to the next step.
UNDER FREEZE FRAME DATA CONDITION No Inspect the malfunctioning part according to the inspection
• Connect the M-MDS to the DLC-2. results.
• Verify the following PIDs under FREEZE Then go to Step 16.
FRAME DATA condition.
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
— APP1
— APP2
— ECT
— MAF
— TP
— VSS
• Are the PIDs normal?
7 INSPECT INTAKE-AIR SYSTEM FOR Yes Repair or replace the malfunctioning part, then go to Step
EXCESSIVE AIR SUCTION 16.
• Visually inspect for loosen, cracks or damages No Go to the next step.
hose in intake-air system.
• Is there any malfunction?
8 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
MAF SENSOR No Replace the MAF/IAT sensor, then go to Step 16.
• Connect the M-MDS to the DLC-2.
• Start the engine.
• Access the MAF PID.
• Verify that the MAF PID changes quickly
according to engine speed.
• Is the PID normal?
9 INSPECT FRONT HO2S Yes Replace the front HO2S, then go to Step 16.
• Inspect the front HO2S. (See01-15-2 EXHAUST SYSTEM REMOVAL/
(See01-40-37 HEATED OXYGEN SENSOR INSTALLATION[L3 WITH TC].)
(HO2S) INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
10 INSPECT FUEL INJECTOR Yes Replace the suspected fuel injector, then go to Step 16.
• Inspect the fuel injector. (See01-14-23 FUEL INJECTOR REMOVAL/
(See01-14-27 FUEL INJECTOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
11 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 15.
• Access and monitor FUEL_PRES PID. No Go to the next step.
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
12 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 14.
• Is the vehicle accelerate performance
normally?
13 INSPECT FUEL PRESSURE SENSOR Yes Go to Step 15.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 16.
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
14 INSPECT HIGH PRESSURE FUEL PUMP Yes Go to Step 16.
• Replace the high pressure fuel pump No Go to the next step.
• Monitor FUEL_PRES PID
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)

01-02–230
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
15 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between fuel No Inspect for following:
pump and high pressure fuel pump. • Fuel line restriction
(See01-14-19 HIGH PRESSURE FUEL • Fuel filter clogging
PUMP INSPECTION[L3 WITH TC].) If okay replace the fuel pump. Then go to the next step.
• Measure the low side fuel pressure.
(See01-14-5 FUEL LINE PRESSURE 01-02
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the
specified?
16 VERIFY TROUBLESHOOTING OF DTC P2195 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the PCM Adopted Memory Produce
Drive Mode and HO2S heater, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
17 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2196[L3 WITH TC]
id010239812800

DTC P2196 Front HO2S signal stuck rich

• The PCM monitors the front HO2S output current when the following conditions are met. If the average
output current is less than 0.85 A for 25 s, the PCM determines that the front HO2S has a malfunction.
MONITORING CONDITION
— ECT: more than 70— 150 °C {158— 302 °F}
— Engine speed: 1,000— 3,200 rpm
— Charging efficiency: 20— 62.5%
— Output voltage from the rear HO2S: 0.8 V or less
DETECTION
CONDITION Diagnostic support note
• This is an intermittent monitor (HO2S).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S malfunction
• Fuel injector malfunction
• Excessive fuel pressure
• Fuel pressure sensor malfunction
• Relief valve (built-in fuel delivery pipe) malfunction
POSSIBLE
• Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
CAUSE
• High pressure fuel pump malfunction
• Restriction in intake-air system
• MAF sensor malfunction
• ECT sensor malfunction
• PCM malfunction

01-02–231
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to the appropriate DTC inspection.
STORED DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch to off, then ON position No Go to the next step.
(Engine off).
• Verify the related PENDING CODE or stored
DTCs.
• Is the DTC P2177 or P2187 also present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to FREEZE FRAME DATA DTC inspection.
• Is DTC P2196 on FREEZE FRAME DATA? (See01-02-13 DTC TABLE[L3 WITH TC].)
5 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to the next step.
• Connect the M-MDS to the DLC-2. No Inspect the malfunctioning part according to the inspection
• Verify the following PIDs. results.
(See01-40-6 PCM INSPECTION[L3 WITH Then go to Step 15.
TC].)
— APP1
— APP2
— ECT
— MAF
— TP
— VSS
• Are the PIDs normal?
6 VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to the next step.
UNDER FREEZE FRAME DATA CONDITION No Inspect the malfunctioning part according to the inspection
• Connect the M-MDS to the DLC-2. results.
• Verify the following PIDs under the FREEZE Then go to Step 15.
FRAME DATA condition.
— APP1
— APP2
— ECT
— MAF
— TP
— VSS
• Are the PIDs normal?
7 VERIFY CURRENT INPUT SIGNAL STATUS OF Yes Go to the next step.
MAF SENSOR No Replace the MAF/IAT sensor, then go to Step 15.
• Connect the M-MDS to the DLC-2.
• Start the engine.
• Access the MAF PID.
• Verify that the MAF PID changes quickly
according to engine speed.
• Is the PID normal?
8 INSPECT FRONT HO2S Yes Replace the front HO2S, then go to Step 15.
• Inspect the front HO2S. (See01-15-2 EXHAUST SYSTEM REMOVAL/
(See01-40-37 HEATED OXYGEN SENSOR INSTALLATION[L3 WITH TC].)
(HO2S) INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?
9 INSPECT FUEL INJECTOR Yes Replace the suspected fuel injector, then go to Step 15.
• Inspect the fuel injector. (See01-14-23 FUEL INJECTOR REMOVAL/
(See01-14-27 FUEL INJECTOR INSTALLATION[L3 WITH TC].)
INSPECTION[L3 WITH TC].) No Go to the next step.
• Is there any malfunction?

01-02–232
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
10 INSPECT FUEL PRESSURE (HIGH-SIDE) Yes Go to Step 14.
• Access and monitor FRP PID. No Go to the next step.
• Is the FRP PID value within the specified?
(See01-40-6 PCM INSPECTION[L3 WITH
TC].)
11 IDENTIFY CAUSE BY FUEL PRESSURE Yes Go to the next step.
SENSOR OR HIGH PRESSURE FUEL PUMP No Go to Step 16. 01-02
• Is the vehicle accelerate performance
normally?
12 INSPECT FUEL PRESSURE SENSOR Yes Go to Step 14.
• Inspect the fuel pressure sensor. No Replace the fuel delivery pipe, then go to Step 15.
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
• Is the fuel pressure sensor normal?
13 INSPECT HIGH PRESSURE FUEL PUMP Yes Go to Step 15.
• Replace the high pressure fuel pump No Go to the next step.
• Monitor FUEL_PRES PID
• Is the FUEL_PRES PID value within the
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
14 INSPECT FUEL PRESSURE (LOW-SIDE) Yes Go to the next step.
• Connect the fuel pressure gauge between fuel No Inspect for following:
pump and high pressure fuel pump. • Fuel line restriction
• Measure the low side fuel pressure. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If okay replace the fuel pump. Then go to the next step.
INSPECTION[L3 WITH TC].)
• Is the low side fuel pressure within the
specified?
15 VERIFY TROUBLESHOOTING OF DTC P2196 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the PCM Adopted Memory Produce
Drive Mode and HO2S heater, and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE for this DTC present?
16 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2228[L3 WITH TC]
WM: DTC P22XX

id010239812900

DTC P2228 BARO sensor circuit low input

• PCM monitors the input voltage from the BARO sensor. If the input voltage at the PCM is below 1.95 V, the
PCM determines that the BARO sensor circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
POSSIBLE • BARO sensor malfunction
CAUSE • PCM malfunction

01-02–233
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT BARO SENSOR MALFUNCTION Yes Replace the PCM, then go to the next step.
• Start the engine. No Go to the next step.
• Access the BARO PID using the M-MDS.
• Inspect that the BARO PID is within the
specification.
• Is there any malfunction?
4 VERIFY TROUBLESHOOTING OF DTC P2228 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No No concern is detected. Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Clear the DTC from the memory using the M-
MDS.
• Start the engine and warm it up completely.
• Is the same DTC present?
5 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2229[L3 WITH TC]
id010239813000

DTC P2229 BARO sensor circuit high input

• PCM monitors the input voltage from the BARO sensor. If the input voltage at the PCM is above 4.45 V, the
PCM determines that the BARO sensor circuit has a malfunction.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
POSSIBLE • BARO sensor malfunction
CAUSE • PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT BARO SENSOR MALFUNCTION Yes Replace the PCM, then go to the next step.
• Start the engine. No Go to the next step.
• Access the BARO PID using the M-MDS.
• Inspect that the BARO PID is within the
specification.
• Is there any malfunction?

01-02–234
1871-1U-06B(01-02).fm 235 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 VERIFY TROUBLESHOOTING OF DTC P2229 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No No concern is detected. Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Clear the DTC from the memory using the M- 01-02
MDS.
• Start engine and warm it up completely.
• Is the same DTC present?
5 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2237[L3 WITH TC]
id010239813100

DTC P2237 Front HO2S positive current control circuit open

• The PCM monitors the front HO2S positive current control circuit voltage. If the voltage does not change
with the PCM control value while the engine is running, the PCM determines that the front HO2S positive
current control circuit is open.
Diagnostic support note
DETECTION • This is a continuous monitor (HO2S).
CONDITION • The MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles
or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S malfunction
POSSIBLE • Connector or terminal malfunction
CAUSE • Open circuit between PCM terminal 2AD and front HO2S terminal 1A
• PCM malfunction
FRONT HO2S PCM

1C 2Z

1B 2AC

4 6 5
1A 2AD

FRONT HO2S PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
1C 1A 2C 2A
1D 1B 2D 2B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

01-02–235
1871-1U-06B(01-02).fm 236 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information. If the vehicle is not repaired, go to the
• Verify related Service Bulletins and/or on-line next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting for DTC on FREEZE FRAME DATA.
• Is DTC P2237 on FREEZE FRAME DATA? (See01-02-13 DTC TABLE[L3 WITH TC].)
4 INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the front HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
6 INSPECT FRONT HO2S POSITIVE CURRENT Yes Replace the front HO2S, then go to the next step.
CIRCUIT FOR OPEN AT PCM - FRONT HO2S No Repair or replace the wiring harness for an open, then go to
• Front HO2S and PCM connectors the next step.
disconnected.
• Verify the continuity between PCM terminal
2AD and front HO2S terminal 1A.
• Is there continuity?
7 VERIFY TROUBLESHOOTING OF DTC P2237 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the AFTER REPAIR PROCEDURE. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–236
1871-1U-06B(01-02).fm 237 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2245[L3 WITH TC]
id010239813200

DTC P2245 Front HO2S sensor reference voltage circuit low input
• The PCM monitors is front HO2S sensor reference voltage circuit voltage. If the voltage below the threshold
value while the engine is running, the PCM determines that the front HO2S sensor reference voltage circuit
is low.
Diagnostic support note
DETECTION • This is a continuous monitor (HO2S). 01-02
CONDITION • The MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles
or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S malfunction
POSSIBLE • Connector or terminal malfunction
CAUSE • Short to ground circuit between PCM terminal 2Y and front HO2S sensor terminal 2C
• PCM malfunction
FRONT HO2S PCM

4 5 7 6
2C 2Y

4 6
2A 2M

FRONT HO2S PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

1C 1A 2C 2A 2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
1D 1B 2D 2B
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting for DTC on FREEZE FRAME DATA.
• Is DTC P2245 on FREEZE FRAME DATA? (See01-02-13 DTC TABLE[L3 WITH TC].)

01-02–237
1871-1U-06B(01-02).fm 238 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 8.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the front HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
5 INSPECT FRONT HO2S REFERENCE VOLTAGE Yes Replace the front HO2S, then go to Step 8.
CIRCUIT FOR SHORT TO GROUND AT FRONT No Go to the next step.
HO2S
• Turn the ignition switch to the off.
• Front HO2S connector disconnected.
• Inspect the continuity between front HO2S
terminal 2C (part-side) and ground.
• Is there continuity?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 8.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
7 INSPECT FRONT HO2S REFERENCE VOLTAGE Yes Repair or replace the wiring harness for a possible short to
CIRCUIT FOR SHORT TO GROUND AT PCM - ground between PCM terminal 2Y and front HO2S sensor
FRONT HO2S terminal 2C, then go to the next step.
• Turn the ignition switch to the off. No Go to the next step.
• Front HO2S and PCM connectors
disconnected.
• Inspect the continuity between front HO2S
terminal 2C (harness-side) and ground.
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P2245 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the AFTER REPAIR PROCEDURE. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–238
1871-1U-06B(01-02).fm 239 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2246[L3 WITH TC]
id010239813300

DTC P2246 Front HO2S sensor reference voltage circuit high input
• The PCM monitors the front HO2S sensor reference voltage circuit voltage. If the voltage is above the
threshold value while the engine is running, the PCM determines that the front HO2S sensor reference
voltage circuit is high.
Diagnostic support note
DETECTION • This is a continuous monitor (HO2S). 01-02
CONDITION • The MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles
or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S malfunction
• Connector or terminal malfunction
POSSIBLE • Short to the power circuit between PCM terminal 2Y and front HO2S terminal 2C
CAUSE • Open circuit between PCM terminal 2Y and front HO2S terminal 2C
• Open circuit between PCM terminal 2M and front HO2S terminal 2A
• PCM malfunction
FRONT HO2S PCM

4 5 6 7
2C 2Y
8

4 7
2A 2M
8

FRONT HO2S PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
1C 1A 2C 2A
1D 1B 2D 2B 2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting for DTC on FREEZE FRAME DATA.
• Is DTC P2246 on FREEZE FRAME DATA? (See01-02-13 DTC TABLE[L3 WITH TC].)

01-02–239
1871-1U-06B(01-02).fm 240 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
4 INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 9.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the front HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
5 INSPECT FRONT HO2S REFERENCE VOLTAGE Yes Replace the front HO2S, then go to Step 9.
CIRCUIT FOR SHORT TO POWER AT FRONT No Go to the next step.
HO2S
• Front HO2S connector disconnected.
• Turn the ignition switch to the ON position
(engine off).
• Measure the voltage between front HO2S
terminal 2C (part-side) and ground.
• Is the voltage above 5.0 V?
6 INSPECT FRONT HO2S REFERENCE VOLTAGE Yes Repair or replace for a short to power, then go to Step 9.
CIRCUIT FOR SHORT TO POWER AT PCM - No Go to the next step.
FRONT HO2S
• Front HO2S connector disconnected.
• Turn the ignition switch to the ON position
(engine off).
• Measure the voltage between front HO2S
terminal 2C (harness-side) and ground.
• Is the voltage above 5.0 V?
7 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 9.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
8 INSPECT FRONT HO2S REFERENCE VOLTAGE Yes Replace the front HO2S, then go to the next step.
CIRCUIT FOR OPEN AT PCM - FRONT HO2S No Repair or replace for an open circuit, then go to the next
• Front HO2S and PCM connectors step.
disconnected.
• Verify the continuity between following
terminals at harness-side connectors.
— PCM terminal 2Y— front HO2S terminal 2C
— PCM terminal 2M— front HO2S terminal 2A
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P2246 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the AFTER REPAIR PROCEDURE. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–240
1871-1U-06B(01-02).fm 241 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2251[L3 WITH TC]
id010239813400

DTC P2251 Front HO2S negative current control circuit open

• The PCM monitors the front HO2S negative current control circuit voltage. If the voltage does not change
with the PCM control value while the engine is running, the PCM determines that the front HO2S negative
current control circuit is open.
Diagnostic support note
DETECTION • This is a continuous monitor (HO2S). 01-02
CONDITION • The MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles
or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Front HO2S malfunction
• Connector or terminal malfunction
POSSIBLE
• Open circuit between PCM terminal 2AC and front HO2S terminal 1B
CAUSE
• Front HO2S heater cannot be controlled
• PCM malfunction
FRONT HO2S PCM

5 6
1C 2Z

5 7 6
1B 2AC

5 6
1A 2AD

FRONT HO2S PCM

WIRING HARNESS-SIDE CONNECTOR WIRING HARNESS-SIDE CONNECTOR
2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B
1C 1A 2C 2A
1D 1B 2D 2B 2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA AND Yes Go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS No Record the FREEZE FRAME DATA and DIAGNOSTIC
HAVE BEEN RECORDED MONITORING TEST RESULTS on the repair order, then
• Have the FREEZE FRAME DATA and go to the next step.
DIAGNOSTIC MONITORING TEST RESULTS
(HO2S related) been recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–241
1871-1U-06B(01-02).fm 242 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 VERIFY RELATED PENDING CODE OR Yes Go to appropriate DTC troubleshooting procedure.
STORED DTC (See01-02-13 DTC TABLE[L3 WITH TC].)
• Turn the ignition switch to off, then ON position No Go to the next step.
(Engine off).
• Verify the related PENDING CODE or stored
DTCs using the M-MDS.
• Is the DTC P0030, P0031 or P0032 also
present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME Yes Go to the next step.
DATA No Go to troubleshooting for DTC on FREEZE FRAME DATA.
• Is DTC P2251 on FREEZE FRAME DATA? (See01-02-13 DTC TABLE[L3 WITH TC].)
5 INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 8.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the front HO2S connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the terminal, then go to Step 8.
CONNECTION No Go to the next step.
• Turn the ignition switch to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, and corrosion).
• Is there any malfunction?
7 INSPECT FRONT HO2S NEGATIVE CURRENT Yes Replace the front HO2S, then go to the next step.
CONTROL CIRCUIT FOR OPEN AT PCM - No Repair or replace for open circuit, then go to the next step.
FRONT HO2S
• The front HO2S and the PCM connectors
disconnected.
• Verify the continuity between the PCM terminal
2AC and the front HO2S terminal 1B at
harness-side connectors.
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P2251 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the HO2S heater, HO2S and TWC
Repair Verification Drive Mode.
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC].)
• Is the PENDING CODE same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the AFTER REPAIR PROCEDURE. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
WM: DTC P24XX

01-02–242
1871-1U-06B(01-02).fm 243 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2401[L3 WITH TC]
id010239813500

DTC P2401 EVAP system leak detection pump motor circuit low
• The PCM monitors the pump load current (EVAP line pressure), while the EVAP leak monitor is operating.
If the pump load current is lower than specified, the PCM determines that the EVAP system leak detection
pump motor circuit has a malfunction.
Diagnostic support note
DETECTION • This is a intermittent monitor (CCM). 01-02
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• EVAP system leak detection pump malfunction
• Open circuit between main relay and EVAP system leak detection pump terminal A
POSSIBLE • Open circuit between EVAP system leak detection pump terminal D and PCM terminal 1AS
CAUSE • Short to ground circuit between EVAP system leak detection pump terminal D and PCM terminal 1AS
• Poor connection at the EVAP system leak detection pump or the PCM connector
• PCM malfunction

EVAP SYSTEM LEAK

DETECTION PUMP MAIN RELAY PCM

5
4
A

4 6
C 1V

9
4 7 6
M D 1AS
8

4
B

EVAP SYSTEM DETECTION PUMP PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

A 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
C
B
D 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

01-02–243
1871-1U-06B(01-02).fm 244 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY RELATED PENDING CODE OR Yes Go to appropriate DTC inspection.
STORED DTC (See01-02-249 DTC P2405[L3 WITH TC].)
• Turn the ignition switch to the OFF then ON No Go to the next step.
position (Engine off).
• Verify related PENDING CODE or stored DTC.
• Is DTC P2405 present?
4 INSPECT EVAP SYSTEM LEAK DETECTION Yes Repair or replace the terminal, then go to Step 10.
PUMP CONNECTOR FOR POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect EVAP system leak detection pump
connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
5 INSPECT EVAP SYSTEM LEAK DETECTION Yes Go to the next step.
PUMP MOTOR CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Disconnect the main relay. then go to Step 10.
• Inspect continuity between EVAP system leak
detection pump terminal A (harness-side) and
main relay.
• Is there continuity?
6 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminal, then go to Step 10.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 INSPECT EVAP SYSTEM LEAK DETECTION Yes Repair or replace the wiring harness for a short to ground,
PUMP MOTOR CIRCUIT FOR SHORT TO then go to Step 10.
GROUND No Go to the next step.
• Inspect for continuity between EVAP system
leak detection pump terminal D (harness-side)
and body ground.
• Is there continuity?
8 INSPECT EVAP SYSTEM LEAK DETECTION Yes Go to the next step.
PUMP MOTOR CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Inspect continuity between EVAP system leak then go to Step 10.
detection pump terminal D (harness-side) and
PCM terminal 1AS (harness-side).
• Is there continuity?
9 INSPECT EVAP SYSTEM LEAK DETECTION Yes Go to the next step.
PUMP No Replace the EVAP system leak detection pump, then go to
• Perform the EVAP system leak detection pump the next step.
inspection.
(See01-16-7 EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK DETECTION PUMP
INSPECTION[L3 WITH TC].)
• Is the EVAP system leak detection pump
normal?

01-02–244
1871-1U-06B(01-02).fm 245 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
10 VERIFY TROUBLESHOOTING OF DTC P2401 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the EVAP system test using the M- 01-02
MDS.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the same DTC present?

Note
• If EVAP system test function is not
available, take following procedure.
— Start the engine and perform the
“EVAP System Repair Verification
Drive Mode”.
(See01-02-10 OBD-II DRIVE
MODE[L3 WITH TC].)
— Is the PENDING CODE for this DTC
present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–245
1871-1U-06B(01-02).fm 246 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2402[L3 WITH TC]
id010239813600

DTC P2402 EVAP system leak detection pump motor circuit high
• The PCM monitors the pump load current (EVAP line pressure), while the EVAP leak monitor is operating.
If the pump load current is higher than specified, the PCM determines that the EVAP system leak detection
pump motor circuit has a malfunction.
Diagnostic support note
DETECTION • This is a intermittent monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• EVAP system leak detection pump malfunction
POSSIBLE • Short to the power supply between the EVAP system leak detection pump terminal D and PCM terminal
CAUSE 1AS
• PCM malfunction

EVAP SYSTEM LEAK

DETECTION PUMP MAIN RELAY PCM

4
A

C 1V

5
M D 1AS

EVAP SYSTEM DETECTION PUMP PCM

WIRING HARNESS SIDE CONNECTOR WIRING HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

A 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
C
B
D 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnostic according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, then go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–246
1871-1U-06B(01-02).fm 247 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 VERIFY RELATED PENDING CODE OR Yes Go to the next step.
STORED DTCS No Replace the EVAP system leak detection pump, then go to
• Turn the ignition switch to the OFF then ON step 6. (See 01-16-7 EVAPORATIVE EMISSION (EVAP)
position (Engine off). SYSTEM LEAK DETECTION PUMP REMOVAL/
• Verify related pending code or stored DTCs. INSTALLATION[L3 WITH TC])
• Are other DTCs present?
4 INSPECT EVAP SYSTEM LEAK DETECTION Yes Go to the appropriate DTC inspection. 01-02
PUMP (See01-02-13 DTC TABLE[L3 WITH TC].)
• Inspect the EVAP system leak detection pump. No Go to the next step.
(See 01-16-7 EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK DETECTION PUMP
INSPECTION[L3 WITH TC])
• Is the EVAP system leak detection pump
normal?
5 CHECK EVAP SYSTEM LEAK DETECTION Yes Repair or replace the wiring harness, then go to the next
PUMP CIRCUIT FOR SHORT TO POWER step.
SUPPLY No Go to the next step.
• Turn the ignition switch to the ON position.
• Disconnect the EVAP system leak detection
pump connector.
• Measure the voltage between EVAP system
leak detection pump terminal D (harness-side)
and body ground.
• Is the voltage B+?
6 VERIFY TROUBLESHOOTING OF DTC P2402 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the EVAP system test using the M-
MDS.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the same DTC present?

Note
• If EVAP system test function is not
available, take following procedure.

— Start the engine and perform the “EVAP

System Repair Verification Drive Mode”.
(See01-02-10 OBD-II DRIVE MODE[L3
WITH TC].)
— Is the PENDING CODE for this DTC
present?
7 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–247
1871-1U-06B(01-02).fm 248 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2404[L3 WITH TC]
id010239813700

DTC P2404 EVAP system leak detection pump sensor circuit malfunction
• The PCM monitors the pump load current (EVAP line pressure), while the EVAP leak monitor is operating.
After obtaining the reference current value, If the pump load current is greater than or equal to the
reference current value plus 2 mA within the specified time, the PCM determines that the air filter has a
malfunction.
Diagnostic support note
DETECTION • This is a intermittent monitor (CCM).
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• Air filter clogging
POSSIBLE
• EVAP hose bending
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnostic according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, then go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 CHECK EVAP HOSE BENDING Yes Go to the next step.
• Inspect the EVAP hose for bending. No Repair or replace the suspected hose, then go to Step 5.
• Is the EVAP hose normal?
4 CHECK AIR FILTER FOR CLOGGING Yes Go to the next step.
• Inspect the air filter for clogging. No Replace the air filter, then go to the next step.
• Is the air filter normal?
5 VERIFY TROUBLESHOOTING OF DTC P2404 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the EVAP system test using the M-
MDS.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the same DTC present?

Note
• If EVAP system test function is not
available, take following procedure.
— Perform the “EVAP System Repair
Verification Drive Mode”.
(See01-02-10 OBD-II DRIVE
MODE[L3 WITH TC].)
— Is the PENDING CODE for this DTC
present?
6 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–248
1871-1U-06B(01-02).fm 249 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2405[L3 WITH TC]
id010239813800

DTC P2405 EVAP system leak detection pump sensor circuit low input
• The PCM monitors the pump load current (EVAP line pressure), while the EVAP leak monitor is operating.
If the current is lower than the specification while the PCM obtains the reference current value, the PCM
determines that the EVAP system leak detection pump orifice has a malfunction.
Diagnostic support note
DETECTION • This is a intermittent monitor (CCM). 01-02
CONDITION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• EVAP system leak detection pump orifice has fallen off
POSSIBLE
• EVAP system leak detection pump motor malfunction
CAUSE
• PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Replace the EVAP system leak detection pump, then go to
• Is any related repair information available? the next step.
3 VERIFY TROUBLESHOOTING OF DTC P2405 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the EVAP system test using the M-
MDS.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the same DTC present?

Note
• If EVAP system test function is not
available, take following procedure.
— Start the engine and perform the
“EVAP System Repair Verification
Drive Mode”.
(See01-02-10 OBD-II DRIVE
MODE[L3 WITH TC].)
— Is the PENDING CODE for this DTC
present?
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–249
1871-1U-06B(01-02).fm 250 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2407[L3 WITH TC]
id010239813900

DTC P2407 EVAP system leak detection pump sensor circuit intermittent
• The PCM monitors pump the load current (EVAP line pressure), while the EVAP leak monitor is operating.
When either of the following is detected6 times or more successively, the PCM determines that the
EVAP system leak detection pump heater has a malfunction:
— While obtaining the reference current value, the change in pump load current exceeds the specification.
— After obtaining the reference current value, the pump load current is kept lower than the maximum pump
load current for more than the specified time.
DETECTION Diagnostic support note
CONDITION • This is a intermittent monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
POSSIBLE • EVAP system leak detection pump heater malfunction
CAUSE • PCM malfunction

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT EVAP SYSTEM LEAK DETECTION Yes Replace the EVAP system leak detection pump, then go to
PUMP HEATER the next step.
• Perform the EVAP system leak detection pump No Go to the next step.
inspection.
(See01-16-7 EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK DETECTION PUMP
INSPECTION[L3 WITH TC])
• Is the EVAP system leak detection pump
normal?
4 VERIFY TROUBLESHOOTING OF DTC P2407 Yes Replace the PCM, then go to the next step.
COMPLETED No Go to the next step.
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the EVAP system test using the M-
MDS.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the same DTC present?

Note
• If EVAP system test function is not
available, take following procedure.

— Start the engine and perform the “EVAP

System Repair Verification Drive Mode”.
(See01-02-10 OBD-II DRIVE MODE[L3
WITH TC].)
— Is the PENDING CODE for this DTC
present?
5 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

01-02–250
1871-1U-06B(01-02).fm 251 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

End Of Sie

DTC P2502[L3 WITH TC]

WM: DTC P25XX

id010239814000

DTC P2502 Charging system voltage problem

• PCM determines that the generator output voltage is above 17 V or the battery voltage is below 11 V while
the engine is running.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (Other).
• The MIL does not illuminate. 01-02
• FREEZE FRAME DATA is not available.
• DTCs are stored in the PCM memory.
• Open circuit between generator terminal B and battery positive terminal
• Battery malfunction
POSSIBLE
• Generator malfunction
CAUSE
• PCM is poorly connected
• PCM, generator and/or battery are poorly connected
GENERATOR PCM

D 2AI
MAIN RELAY

P 2AJ

1BE
4 6
B

- + 5
BATTERY 3
PCM
GENERATOR WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR
1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
B D P
*
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?

01-02–251
1871-1U-06B(01-02).fm 252 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
3 INSPECT BATTERY Yes Go to the next step.
• Turn the ignition switch off. No Replace the battery, then go to Step 8.
• Inspect the battery.
• Is the battery normal?
4 INSPECT GENERATOR Yes Go to the next step.
• Inspect the generator. No Replace the generator, then go to Step 8.
(See 01-17-6 GENERATOR INSPECTION[L3 (See 01-17-4 GENERATOR REMOVAL/INSTALLATION[L3
WITH TC]) WITH TC])
• Is the generator normal?
5 INSPECT POOR INSTALLATION OF Yes Tighten the generator terminal B installation nut, then go to
GENERATOR TERMINAL Step 8.
• Turn the ignition switch to off. No Go to the next step.
• Inspect for looseness of generator terminal B
installation nut.
• Is the nut loose?
6 INSPECT POOR INSTALLATION OF BATTERY Yes Connect the battery positive terminal correctly, then go to
POSITIVE TERMINAL Step 8.
• Inspect for looseness of battery positive No Go to the next step.
terminal.
• Is the terminal loose?
7 INSPECT BATTERY CHARGING CIRCUIT Yes Go to the next step.
• Disconnect the generator terminal B. No Repair or replace the wiring harness between generator
• Measure the voltage between generator terminal B and battery positive terminal, then go to the next
terminal B (wiring harness-side) and body step.
ground.
• Is the voltage B+?
8 VERIFY TROUBLESHOOTING OF DTC P2502 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all connectors. TC].)
• Clear the DTC from the PCM memory using No Go to the next step.
the M-MDS.
• Start the engine.
• Is the same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2503[L3 WITH TC]
id010239814100

DTC P2503 Charging system voltage low

• PCM needs more than 20 A from the generator, and determines that generator output voltage is below 8.5
V while the engine is running.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• DTCs are stored in the PCM memory.
• Generator malfunction
• PCM and/or generator are poorly connected
• Open and/or short to ground in the wiring harness from between generator terminal P and PCM terminal
POSSIBLE
2AJ
CAUSE
• Open and/or short to ground in the wiring harness from between generator terminal D and PCM terminal
2AI
• Drive chain misadjustment

01-02–252
1871-1U-06B(01-02).fm 253 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2503 Charging system voltage low
GENERATOR PCM

5 6 4
D 2AI
8 MAIN RELAY

01-02
5 7 4
P 2AJ
9 4
1BE
5
B

- +

BATTERY

PCM
GENERATOR WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR
1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
B D P
*
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT DRIVE CHAIN CONDITION Yes Go to the next step.
• Verify that the drive chain auto tensioner No Replace the and/or adjust drive chain, then go to Step 10.
indicator mark does not exceed limit.
• Is the front drive chain normal?
4 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminals, then go to Step 10.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
5 INSPECT GENERATOR CONNECTOR FOR Yes Repair or replace the terminals, then go to Step 10.
POOR CONNECTION No Go to the next step.
• Disconnect the generator connector.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?

01-02–253
1871-1U-06B(01-02).fm 254 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
6 INSPECT GENERATOR CONTROL CIRCUIT Yes Repair or replace the wiring harness for a short to ground,
FOR SHORT TO GROUND then go to Step 10.
• Inspect for continuity between generator No Go to the next step.
terminal D (wiring harness-side) and body
ground.
• Is there continuity?
7 INSPECT GENERATOR OUTPUT VOLTAGE Yes Repair or replace the wiring harness for a short to ground,
MONITOR CIRCUIT FOR SHORT TO GROUND then go to Step 10.
• Inspect for continuity between generator No Go to the next step.
terminal P (wiring harness-side) and body
ground.
• Is there continuity?
8 INSPECT GENERATOR CONTROL CIRCUIT Yes Go to the next step.
FOR OPEN No Repair or replace the wiring harness for an open circuit,
• Inspect for continuity between generator then go to Step 10.
terminal D (wiring harness-side) and PCM
terminal 2AI (wiring harness-side).
• Is there continuity?
9 INSPECT GENERATOR OUTPUT VOLTAGE Yes Repair or replace the generator, then go to the next step.
MONITOR CIRCUIT FOR OPEN CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Inspect for continuity between generator then go to the next step.
terminal P (wiring harness-side) and PCM
terminal 2AJ (wiring harness-side).
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P2503 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all connectors. TC].)
• Clear the DTC from the PCM memory using No Go to the next step.
the M-MDS.
• Start the engine.
• Is the same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2504[L3 WITH TC]
id010239814200

DTC P2504 Charging system voltage high

• PCM determines that the generator output voltage is above 18.5 V or the battery voltage is above 16.0 V
while the engine is running.
Diagnostic support note
DETECTION
CONDITION • This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• DTCs are stored in the PCM memory.
• Short to the power circuit between generator connector terminal D and PCM connector terminal 2AI
POSSIBLE
• Generator malfunction
CAUSE
• PCM and/or generator are poorly connected

01-02–254
1871-1U-06B(01-02).fm 255 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2504 Charging system voltage high
GENERATOR PCM

4
3 6 7 5
D 2AI
MAIN RELAY

01-02
3 5
P 2AJ
5
1BE
3
B

- +

BATTERY

PCM
GENERATOR WIRING HARNESS-SIDE CONNECTOR
WIRING HARNESS-SIDE CONNECTOR
1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B
B D P
*
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related Service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT GENERATOR CONNECTOR FOR Yes Repair or replace the terminals, then go to Step 8.
POOR CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the generator connector.
• Inspect for poor connection (damaged/pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
4 CLASSIFY GENERATOR MALFUNCTION OR Yes Go to the next step.
OTHER MALFUNCTION No There is a malfunction at the generator.
• Turn the ignition switch to the ON position Go to Step 7.
(Engine off).
• Measure the voltage between generator
terminal D (wiring harness-side) and body
ground.
• Is the voltage B+?

01-02–255
1871-1U-06B(01-02).fm 256 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair or replace the pins, then go to Step 8.
CONNECTION No Go to the next step.
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (damaged/pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
6 INSPECT GENERATOR CONTROL CIRCUIT Yes Repair or replace the wiring harness for a short to power
FOR SHORT TO POWER supply, then go to Step 8.
• Turn the ignition switch to the ON position No Go to Step 8.
(engine off).
• Measure the voltage between generator
terminal D (wiring harness-side) and body
ground.
• Is the voltage B+?
7 INSPECT GENERATOR CONTROL TERMINAL Yes Repair or replace the generator, then go to the next step.
FOR SHORT TO POWER No Go to the next step.
• Measure the voltage between generator
terminal D (part-side) and body ground.
• Is the voltage B+?
8 VERIFY TROUBLESHOOTING OF DTC P2504 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all connectors. TC].)
• Clear the DTC from the PCM memory using No Go to the next step.
the M-MDS.
• Perform the KOER self-test.
• Start the engine.
• Is the same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Ares any DTCs present?

End Of Sie
DTC P2507[L3 WITH TC]
id010239814300

DTC P2507 PCM +BB (back-up battery) voltage low

• The PCM monitors the voltage of the back-up battery positive terminal. If the PCM detects that the battery
positive terminal voltage isbelow 2.5 V for2 s, the PCM determines that the backup voltage circuit has
a malfunction.
DETECTION Diagnostic support note
CONDITION • This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Melt down EEC fuse
• Open circuit in the wiring harness between the EEC fuse and PCM terminal 1BA
POSSIBLE
• Short to ground between the EEC fuse and PCM terminal 1BA
CAUSE
• Poor connection of the PCM connector.
• PCM malfunction

01-02–256
1871-1U-06B(01-02).fm 257 ページ ２００６年３月１５日 水曜日 午前１０時３２分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

DTC P2507 PCM +BB (back-up battery) voltage low
3 PCM
EEC
FUSE 6 5
1BA
4
- +
01-02
BATTERY

PCM
WIRING HARNESS SIDE CONNECTOR

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C

1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record FREEZE FRAME DATA on the repair order, then go
• Has the FREEZE FRAME DATA been to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Check for related Service Bulletins and/or on- • If the vehicle is not repaired, go to the next step.
line repair information availability. No Go to the next step.
• Is any related repair information available?
3 INSPECT EEC FUSE Yes Go to step 6.
• Turn the ignition switch to off. No • If the EEC fuse has been melt down, then go to the next
• Inspect the EEC fuse for failure and proper. step.
• Is it normal? • If the EEC fuse is not installed correctly, install it
correctly then go to Step 7.
4 INSPECT MONITOR CIRCUIT FOR SHORT TO Yes Repair or replace the wiring harness for a short to ground
GROUND and install new fuse, then go to Step 7.
• Disconnect the battery cables. No Go to step 7.
• Inspect for continuity between EEC fuse
terminal and body ground.
• Is there continuity?
5 INSPECT PCM CONNECTOR FOR POOR Yes Repair the terminals, then go to Step 7.
CONNECTION No Go to the next step.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
6 INSPECT MONITOR CIRCUIT FOR OPEN Yes Go to the next step.
CIRCUIT No Repair or replace the wiring harness for an open circuit,
• Disconnect the battery cables. then go to the next step.
• Inspect for continuity between EEC fuse
terminal and PCM terminal 1BA (harness-
side).
• Is there continuity?

01-02–257
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ON-BOARD DIAGNOSTIC [L3 WITH TC]

STEP INSPECTION ACTION
7 VERIFY TROUBLESHOOTING OF DTC P2507 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all disconnected TC].)
connectors. No Go to the next step.
• Turn the ignition switch to the ON position
(Engine off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is the same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC inspection.
• Perform the “After Repair Procedure”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No Troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie
DTC P2610[L3 WITH TC]
WM: DTC P26XX

id010239814400

DTC P2610 PCM internal engine off timer performance

• PCM internal engine off timer is damaged.
Diagnostic support note
• This is a continuous monitor (CCM).
DETECTION • MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
CONDITION one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
POSSIBLE
• PCM internal engine off timer is damaged.
CAUSE

Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED No Record the FREEZE FRAME DATA on the repair order,
• Has the FREEZE FRAME DATA been then go to the next step.
recorded?
2 VERIFY RELATED REPAIR INFORMATION Yes Perform the repair or diagnosis according to the available
AVAILABILITY repair information.
• Verify related service Bulletins and/or on-line • If the vehicle is not repaired, go to the next step.
repair information availability. No Go to the next step.
• Is any related repair information available?
3 VERIFY TROUBLESHOOTING OF DTC P2610 Yes Replace the PCM, then go to the next step.
COMPLETED (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
• Make sure to reconnect all the disconnected TC].)
connectors. No Go to the next step.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the “AFTER REPAIR PROCEDURE”. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR No DTC troubleshooting completed.
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?

End Of Sie

01-02–258
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

01-03 SYMPTOM TROUBLESHOOTING [L3 WITH TC]
SYMPTOM TROUBLESHOOTING WIRING NO.21 ENGINE NOISE
DIAGRAM[L3 WITH TC] . . . . . . . . . . . . 01-03–2 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03–66
FOREWORD[L3 WITH TC] . . . . . . . . . . . 01-03–4 NO.22 VIBRATION CONCERNS (ENGINE)
ENGINE SYMPTOM [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03–67
TROUBLESHOOTING NO.23 A/C DOES NOT WORK
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–5 SUFFICIENTLY[L3 WITH TC] . . . . . . . . 01-03–68 01-03
CONTROL SYSTEM DEVICE AND NO.24 A/C IS ALWAYS ON OR A/C
CONTROL RELATIONSHIP CHART COMPRESSOR RUNS CONTINUOUSLY
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–6 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03–69
QUICK DIAGNOSTIC CHART NO.25 A/C IS NOT CUT OFF UNDER
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–8 WIDE OPEN THROTTLE CONDITIONS
NO.1 MELTING OF MAIN OR OTHER [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03–70
FUSES[L3 WITH TC] . . . . . . . . . . . . . . 01-03–15 NO.26 EXHAUST SULPHUR SMELL
NO.2 MIL ILLUMINATES [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03–70
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–16 NO.27 FUEL REFILL CONCERNS
NO.3 WILL NOT CRANK [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03–71
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–17 NO.28 FUEL FILLING SHUT
NO.4 HARD TO START/LONG OFF ISSUES[L3 WITH TC] . . . . . . . . . . 01-03–72
CRANK/ERRATIC START/ERRATIC NO.29 SPARK PLUG CONDITION
CRANK[L3 WITH TC]. . . . . . . . . . . . . . 01-03–20 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03–73
NO.5 ENGINE STALLS-AFTER INTERMITTENT CONCERN
START/AT IDLE[L3 WITH TC] . . . . . . . 01-03–23 TROUBLESHOOTING
NO.6 CRANKS NORMALLY BUT WILL [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03–76
NOT START[L3 WITH TC] . . . . . . . . . . 01-03–28 Vibration Method . . . . . . . . . . . . . . . . . . 01-03–76
NO.7 SLOW RETURN TO IDLE Water Sprinkling Method . . . . . . . . . . . . 01-03–77
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–32 ENGINE CONTROL SYSTEM
NO.8 ENGINE RUNS ROUGH/ROLLING OPERATION INSPECTION
IDLE[L3 WITH TC] . . . . . . . . . . . . . . . . 01-03–34 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03–78
NO.9 FAST IDLE/RUNS ON Input Signal System
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–37 Investigation Procedure . . . . . . . . . . . 01-03–78
NO.10 LOW IDLE/STALLS DURING Main Relay Operation Inspection . . . . . 01-03–81
DECELERATION[L3 WITH TC] . . . . . . 01-03–39 Intake Manifold
NO.11 ENGINE STALLS/QUITS, Vacuum Inspection. . . . . . . . . . . . . . . 01-03–82
ENGINE RUNS ROUGH, MISSES, Electronic Throttle Control
BUCK/JERK, HESITATION/STUMBLE, System Inspection . . . . . . . . . . . . . . . 01-03–82
SURGES[L3 WITH TC] . . . . . . . . . . . . . 01-03–41 Variable Swirl System
NO.12 LACK/LOSS OF POWER Operation Inspection . . . . . . . . . . . . . 01-03–83
(ACCELERATION/CRUISE) Fuel Injector
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–46 Operation Inspection . . . . . . . . . . . . . . 01-03–84
NO.13 KNOCKING/PINGING Fuel Cut Control
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–50 System Inspection. . . . . . . . . . . . . . . . 01-03–85
NO.14 POOR FUEL ECONOMY Fuel Pump Operation Inspection. . . . . . 01-03–85
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–53 Fuel Pump Control
NO.15 EMISSION COMPLIANCE System Inspection. . . . . . . . . . . . . . . . 01-03–86
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–56 Fuel Pump Speed
NO.16 HIGH OIL Control Inspection . . . . . . . . . . . . . . . 01-03–86
CONSUMPTION/LEAKAGE Spark Test . . . . . . . . . . . . . . . . . . . . . . . 01-03–87
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–59 EGR Control
NO.17 COOLING SYSTEM System Inspection. . . . . . . . . . . . . . . . 01-03–87
CONCERNS-OVERHEATING Purge Control System Inspection . . . . . 01-03–88
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–60 A/C Cut-off Control
NO.18 COOLING SYSTEM System Inspection . . . . . . . . . . . . . . . 01-03–89
CONCERNS-RUNS COLD Cooling Fan Control
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–61 System Inspection. . . . . . . . . . . . . . . . 01-03–89
NO.19 EXCESSIVE BLACK SMOKE Wastegate Control System
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03–62 Operation Inspection . . . . . . . . . . . . . . 01-03–90
NO.20 FUEL ODOR (IN ENGINE Variable Valve Timing Control
COMPARTMENT)[L3 WITH TC] . . . . . . 01-03–65 System Operation Inspection . . . . . . . 01-03–90
Evaporative Emission (EVAP)
System Leak Inspection . . . . . . . . . . . 01-03–91

End of Toc

01-03–1
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

SYMPTOM TROUBLESHOOTING WIRING DIAGRAM[L3 WITH TC]
WM: SYMPTOM TROUBLESHOOTING (ENGINE CONTROL SYSTEM)

id010339800100

c 2BG
FUEL INJECTOR
1AY
2BB NO.1
b
a 1BE FUEL INJECTOR
NO.4
2AZ
1BA
2BH
FUEL INJECTOR
1AZ NO.3
2BD

FUEL INJECTOR
NO.2
2BC

1AR 2BF
IAT SENSOR FUEL INJECTOR RELAY
1M 2BE

MAF 1AK
1AW
SENSOR
1P
2C HO2S HEATER (FRONT)
1Q
HO2S HEATER (REAR)
1AV 2D

APP 1Y
SENSOR 1AE FAN CONTROL MODULE NO.1
1U

1AC
COOLING FAN
RELAY NO.1
1AJ

PCM
1AO b
2P
FUEL PRESSURE SENSOR
2R 1R FAN CONTROL MODULE NO.2

2I
COOLING FAN
2AY RELAY NO.2
ECT SENSOR 1K
2AH
A/C RELAY b

1I
2AV
FUEL PUMP SPEED CONTROL RELAY
MAP 1AA
2AG
SENSOR
2N
BOOST AIR TEMPERATURE
FUEL PUMP RESISTOR
SENSOR 2AU

1BC
HO2S (REAR)
2Q FUEL PUMP RELAY
1H

2M b
1AT

2AD
MAIN RELAY
HO2S
(FRONT) 2AC
STARTER RELAY c
2Z 1B
IGNITION
2Y
SWITCH

DRIVE-BY-WIRE-RELAY
2X
1BF
CKP SENSOR
2W 1AX
BATTERY
CMP SENSOR 2S
f a
d e

acxuuw00002267

01-03–2
1871-1U-06B(01-03).fm 3 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

d e f
EGR VALVE
2AQ

2AM
2V
KS 01-03
2U 2AR

2AN

2AK

2AP
EVAP SYSTEM LEAK
DETECTION PUMP
TP SENSOR
2AL 1V
b
2AO 1AS

PURGE SOLENOID VALVE

BRAKE SWITCH NO.1 2AB
1AB WASTEGATE CONTROL
SOLENOID VALVE
BRAKE SWITCH NO.2 2AA
1AF
VARIABLE SWIRL
SOLENOID VALVE
2AS
VARIABLE SWIRL SHUTTER VALVE SWITCH OCV
2AE 2AF

2E
REFRIGERANT PRESSURE SWITCH (HIGH, LOW)
1AU 2B
THROTTLE
REFRIGERANT PRESSURE SWITCH (MIDDLE) 2A
ACTUATOR
1J

2F
PSP SWITCH SPILL VALVE CONTROL
2T
2G
SOLENOID VALVE

2H

1BB

CRUISE CONTROL SWITCH 1BG

1AQ
1BD

1BH

2BA IGNITION COIL NO.1

GENERATOR 2AJ
2AW IGNITION COIL NO.2

2AX IGNITION COIL NO.3

1AM
CAN
1AI
2AT IGNITION COIL NO.4

2AI GENERATOR

acxuuw00002268

End Of Sie

01-03–3
1871-1U-06B(01-03).fm 4 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

FOREWORD[L3 WITH TC]
id010339800300
• When the customer reports a vehicle malfunction, check the malfunction indicator lamp (MIL) indication and
diagnostic trouble code (DTC), then diagnose the malfunction according to the following flowchart:
— If a DTC exists, diagnose the applicable DTC inspection. (See 01-02-13 DTC TABLE[L3 WITH TC].)
— If no DTC exists and the MIL does not illuminate or flash, diagnose the applicable symptom
troubleshooting. (See 01-03-8 QUICK DIAGNOSTIC CHART[L3 WITH TC].)

CUSTOMER ARRIVES

WARNING LIGHT* NO WARNING LIGHT*

ON/FLASHING WITH SYMPTOM

CHECK FOR •CHECK DTC

PRIORITIZED DTC •IGNITION ON TEST, IDLING TEST
DTC
WITHOUT DTC

DIAGNOSE BY DTC DIAGNOSE BY SYMPTOM

(ON-BOARD DIAGNOSTIC) (SYMPTOM TROUBLESHOOTING)
•DTC TABLE 1. DIAGNOSTIC INDEX
•DTC 2. QUICK DIAGNOSIS CHART
TROUBLESHOOTING 3. SYMPTOM TROUBLESHOOTING
FLOW

acxuuw00002431

*: Malfunction Indicator Lamp (MIL), Generator Warning Light, Security Light

End Of Sie

01-03–4
1871-1U-06B(01-03).fm 5 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

ENGINE SYMPTOM TROUBLESHOOTING[L3 WITH TC]
id010339800500
• Verify malfunction symptoms using the following diagnostic index, then go to the appropriate troubleshooting
chart.
Diagnostic Index
No. TROUBLESHOOTING ITEM DESCRIPTION
1 Melting of main or other fuses —
2 MIL illuminates MIL is illuminated. 01-03
3 Will not crank Starter does not work.
Hard to start/long crank/erratic start/erratic Starter cranks engine at normal speed but engine requires excessive
4
crank cranking time before starting.
5 Engine stalls. After start/at idle Engine stops unexpectedly at idle or after start or both.
6 Cranks normally but will not start Starter cranks engine at normal speed but engine will not run.
7 Slow return to idle Engine takes more time than normal to return to idle speed.
Engine speed fluctuates between specified idle speed and lower
8 Engine runs rough/rolling idle
speed and engine shakes excessively.
Engine speed continues at fast idle after warm-up.
9 Fast idle/runs on
Engine runs after ignition switch is turned off.
Engine stops unexpectedly at beginning of deceleration or recovery
10 Low idle/stalls during deceleration
from deceleration.
Engine stops unexpectedly at beginning of acceleration or during
Engine stalls/quits. Acceleration/cruise acceleration.
Engine stops unexpectedly while cruising.
Engine runs rough. Acceleration/cruise Engine speed fluctuates during acceleration or cruising.
11 Misses Acceleration/cruise Engine misses during acceleration or cruising.
Acceleration/cruise/
Buck/jerk Vehicle bucks/jerks during acceleration, cruising, or deceleration.
deceleration
Hesitation/stumble Acceleration Momentary pause at beginning of acceleration or during acceleration
Surges Acceleration/cruise Momentary minor irregularity in engine output
Performance is poor under load.
12 Lack/loss of power Acceleration/cruise
(e.g., power down when climbing hills)
Sound is produced when air/fuel mixture is ignited by something other
13 Knocking/pinging Acceleration/cruise
than spark plug. (e.g., hot spot in combustion chamber)
14 Poor fuel economy Fuel economy is unsatisfactory.
15 Emission compliance Fails emissions test.
16 High oil consumption/leakage Oil consumption is excessive.
Cooling system
17 Overheating Engine runs at higher than normal temperature/overheats.
concerns
Cooling system
18 Runs cold Engine does not reach normal operating temperature.
concerns
19 Exhaust smoke Blue, black, or white smoke from exhaust system
20 Fuel odor (in engine compartment) Gasoline fuel smell or visible leakage
21 Engine noise Engine noise from under hood
22 Vibration concerns (engine) Vibration from under hood or driveline
A/C compressor magnetic clutch does not engage when A/C is turned
23 A/C does not work sufficiently.
on.
A/C is always on or A/C compressor runs
24 A/C compressor magnetic clutch does not disengage.
continuously.
25 A/C is not cut off under WOT conditions. A/C compressor magnetic clutch does not disengage under WOT.
26 Exhaust sulphur smell Rotten egg smell (sulphur) from exhaust
27 Fuel refill concerns Fuel tank does not fill smoothly.
28 Fuel filling shut off issues Fuel does not shut off properly.
29 Spark plug condition Incorrect spark plug condition

End Of Sie

01-03–5
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

CONTROL SYSTEM DEVICE AND CONTROL RELATIONSHIP CHART[L3 WITH TC]
id010339800200

X: Applied

HIGH PRESSURE FUEL PUMP CONTROL

VARIABLE VALVE TIMING CONTROL
ELECTRONIC THROTTLE CONTROL

EVAPORATIVE PURGE CONTROL

FUEL PUMP SPEED CONTROL

STARTER CUT-OFF CONTROL
ELECTRICAL FAN CONTROL
VARIABLE SWIRL CONTROL

FUEL INJECTION CONTROL

HO2S HEATER CONTROL

A/C CUT-OFF CONTROL

GENERATOR CONTROL

WASTEGATE CONTROL
FUEL PUMP CONTROL
Item

CRUISE CONTROL
EGR CONTROL
ESA CONTROL

CAN
IAC

Input device
IAT sensor X X X X X X X X X
MAF sensor X X X X X X X X X X X X X
TP sensor No.1, No.2 X X X X X X X X
APP sensor No.1,
X X X X X X X X X X
No.2
MAP sensor X X X X X
ECT sensor X X X X X X X X X X X X X
CMP sensor X X X X X
CKP sensor X X X X X X X X X X X X X X X X
KS X
HO2S (front, rear) X X X
BARO sensor X X X X X X X
Neutral switch X X X X X X X X X
CPP switch X X X X X X X X X
Brake switch X X X X
Instrument cluster (A/
X X X
C on request signal)
Refrigerant pressure
switch
X X X
(low pressure switch,
high pressure switch)
Refrigerant pressure
switch (medium X X
pressure switch)
Battery X X X X X X X X X X X
Generator (Terminal
X X
P: starter coil)
Vehicle speed signal X X X X X X X X X
Cruise control switch X
Instrument cluster
X X X X X X X
(CAN signal)
Ignition switch X X X X X X X
Fuel pressure sensor X X X X
Boost air temperature
X X X X X
sensor
Output device
Throttle actuator X X X
Drive-by-wire-relay X

01-03–6
1871-1U-06B(01-03).fm 7 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

HIGH PRESSURE FUEL PUMP CONTROL

VARIABLE VALVE TIMING CONTROL
ELECTRONIC THROTTLE CONTROL

EVAPORATIVE PURGE CONTROL

FUEL PUMP SPEED CONTROL

STARTER CUT-OFF CONTROL
ELECTRICAL FAN CONTROL
VARIABLE SWIRL CONTROL

FUEL INJECTION CONTROL

HO2S HEATER CONTROL

01-03

A/C CUT-OFF CONTROL

GENERATOR CONTROL

WASTEGATE CONTROL
FUEL PUMP CONTROL
Item

CRUISE CONTROL
EGR CONTROL
ESA CONTROL

CAN
IAC

Variable swirl shutter

X
valve actuator
OCV X
Injector driver module X
Fuel pump relay X
Ignition coil X
EGR valve X
Purge solenoid valve X
HO2S heater (front,
X
rear)
A/C relay X
Fan control module X
Starter relay X X
Generator (Terminal
X
D: field coil)
ABS HU/CM (With
X
ABS) (CAN signal)
Instrument cluster
X
(CAN signal)
Spill valve control
X
solenoid valve
Wastegate control
X
solenoid valve
Fuel pump speed
X
control relay

End Of Sie

01-03–7
1871-1U-06B(01-03).fm 8 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

QUICK DIAGNOSTIC CHART[L3 WITH TC]
id010339800600

X: Applied
Possible factor

Starter motor malfunction (Mechanical or electrical)

Starter circuit including ignition switch is open

Water and anti-freeze mixture is improper

hoses,overflow system, thermostat, etc.)

Improper tension or damaged drive belts

Cooling system malfunction (Radiator,

Cooling fan system malfunction

Improper engine compression
Charging system malfunction

Improper engine coolant level

Improper engine oil level

Base engine malfunction

Low or dead battery

Flywheel is seized
Improper dipstick
Troubleshooting item
1 Melting of main or other fuses
2 MIL illuminates
3 Will not crank x x x x x x
4 Hard start/long crank/erratic start/erratic crank x x x
5 Engine stalls After start/at idle x
6 Cranks normally but will not start x
7 Slow return to idle x x
8 Engine runs rough/rolling idle x
9 Fast/idle runs on
10 Low idle/stalls during deceleration x
Engine stalls/quits Acceleration/cruise x
Engine runs rough Acceleration/cruise x
Misses Acceleration/cruise x
11 Acceleration/cruise/
Buck/jerk deceleration
x
Hesitation/stumble Acceleration/cruise x
Surges Acceleration/cruise x
12 Lack/loss of power Acceleration/cruise x
13 Knocking/pinging Acceleration/cruise x x
14 Poor fuel economy x x x x
15 Emission compliance x x x
16 High oil consumption/leakage x x
17 Cooling system concerns Overheating x x x x x
18 Cooling system concerns Runs cold x x
19 Exhaust smoke x x x
20 Fuel odor (in engine compartment)
21 Engine noise x
22 Vibration concerns (engine)
23 A/C does not work sufficiency
A/C always on or A/C compressor
24
runs continuously.
25 A/C does not cut off under wide open throttle
26 Exhaust sulphur smell
27 Fuel refill concerns
28 Fuel filling shut off issues
29 Spark plug condition x
acxuuw00000310

01-03–8
1871-1U-06B(01-03).fm 9 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

X: Applied
Possible factor

Engine or transaxle mounts are improperly installed.

Coolant leakage (internal, turbocharger, external)

Cooling fan or condenser fan seats are improper.
01-03

Oil leakage (internal, turbocharger, external)

Variable tumble control system malfunction

Air cleaner element clogging or restriction

Air leakage from intake-air system (loose

Variable valve timing system malfunction

tubes, cracks, gaskets blockage)

Air suction in intake-air system

Improper engine oil viscosity

Intake-air system restriction

Improper oil or fluid level
Improper valve timing

Engine overheating
Fuel quality

Troubleshooting item
1 Melting of main or other fuses
2 MIL illuminates x x
3 Will not crank
4 Hard start/long crank/erratic start/erratic crank x x x x x
5 Engine stalls After start/at idle x x x x x
6 Cranks normally but will not start x x x x x x
7 Slow return to idle x
8 Engine runs rough/rolling idle x x x x x
9 Fast/idle runs on x x
10 Low idle/stalls during deceleration x x x
Engine stalls/quits Acceleration/cruise x x x x x x
Engine runs rough Acceleration/cruise x x x x x x
Misses Acceleration/cruise x x x x x x
11 Acceleration/cruise/
Buck/jerk deceleration x x x x x x
Hesitation/stumble Acceleration/cruise x x x x x x
Surges Acceleration/cruise x x x x x x
12 Lack/loss of power Acceleration/cruise x x x x x x x x
13 Knocking/pinging Acceleration/cruise x x x
14 Poor fuel economy x x x
15 Emission compliance x x x x x
16 High oil consumption/leakage x x
17 Cooling system concerns Overheating x
18 Cooling system concerns Runs cold
19 Exhaust smoke x x x x
20 Fuel odor (in engine compartment)
21 Engine noise x
22 Vibration concerns (engine) x x
23 A/C does not work sufficiency
A/C always on or A/C compressor
24
runs continuously.
25 A/C does not cut off under wide open throttle
26 Exhaust sulphur smell x
27 Fuel refill concerns
28 Fuel filling shut off issues
29 Spark plug condition x
acxuuw00000311

01-03–9
1871-1U-06B(01-03).fm 10 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

X: Applied
Possible factor

Initial ignition timing misadjustment (CKP and pulse wheel

Fuel pump (low-pressure side) malfunction (Mechanically

Pressure regulator (built-in fuel pump unit at fuel tank)

Vacuum leakage (Vacuum hose damage, misrouting)

Ignition coil malfunction (e.g. open, short or cracks)

Inadequate fuel pressure (High-pressure side)

Inadequate fuel pressure (Low-pressure side)

Electronic throttle control improper operation

Improper operation of wastegate system

Fuel line restriction or clogging

Charge air cooler malfunction
Turbocharger malfunction
Throttle body malfunction

Spark plug malfunction

misadjustment)

or electrically)
Troubleshooting item
1 Melting of main or other fuses
2 MIL illuminates x
3 Will not crank
4 Hard start/long crank/erratic start/erratic crank x x x x x x x x x
5 Engine stalls After start/at idle x x x x x x x
6 Cranks normally but will not start x x x x x x x x
7 Slow return to idle x x
8 Engine runs rough/rolling idle x x x x x x x
9 Fast/idle runs on x x
10 Low idle/stalls during deceleration x x x x x
Engine stalls/quits Acceleration/cruise x x x x x x x x x x
Engine runs rough Acceleration/cruise x x x x x x x x x x
Misses Acceleration/cruise x x x x x x x x x x
11 Acceleration/cruise/
Buck/jerk deceleration x x x x x x x x x x
Hesitation/stumble Acceleration/cruise x x x x x x x x x x
Surges Acceleration/cruise x x x x x x x x x x
12 Lack/loss of power Acceleration/cruise x x x x x x x x x x x x
13 Knocking/pinging Acceleration/cruise x x x x x x
14 Poor fuel economy x x x x x x x x
15 Emission compliance x x x x x x x x x
16 High oil consumption/leakage x
17 Cooling system concerns Overheating
18 Cooling system concerns Runs cold
19 Exhaust smoke x x x x x
20 Fuel odor (in engine compartment) x x
21 Engine noise x x
22 Vibration concerns (engine)
23 A/C does not work sufficiency
A/C always on or A/C compressor
24
runs continuously.
25 A/C does not cut off under wide open throttle
26 Exhaust sulphur smell x x x
27 Fuel refill concerns
28 Fuel filling shut off issues
29 Spark plug condition x x x x x x
acxuuw00000312

01-03–10
1871-1U-06B(01-03).fm 11 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

X: Applied
Possible factor

Spill valve control solenoid valve malfunction (built-in high

Fuel pressure limiter malfunction (built-in common rail)

Exhaust system or catalytic converter restriction

01-03

Fuel pump resister or related circuit malfunction

Incorrect fuel injection timing or amount
High pressure fuel pump malfunction
Fuel injector malfunction (inoperative)

Improper air/fuel ratio mixture control

EVAP control system malfunction

Fuel filters restriction or clogging

Catalytic converter malfunction

EGR system malfunction

Fuel leakage at fuel line

PCV valve malfunction

Exhaust gas leakage
pressure fuel pump)
Troubleshooting item
1 Melting of main or other fuses
2 MIL illuminates x x x x x
3 Will not crank
4 Hard start/long crank/erratic start/erratic crank x x x x x x x x x x x x
5 Engine stalls After start/at idle x x x x x x x x x x x x
6 Cranks normally but will not start x x x x x x x x x x x x
7 Slow return to idle x x x
8 Engine runs rough/rolling idle x x x x x x x x x x
9 Fast/idle runs on x x
10 Low idle/stalls during deceleration x x x x x x x x
Engine stalls/quits Acceleration/cruise x x x x x x x x x x x
Engine runs rough Acceleration/cruise x x x x x x x x x x x
Misses Acceleration/cruise x x x x x x x x x x x
11 Acceleration/cruise/
Buck/jerk deceleration x x x x x x x x x x x
Hesitation/stumble Acceleration/cruise x x x x x x x x x x x
Surges Acceleration/cruise x x x x x x x x x x x
12 Lack/loss of power Acceleration/cruise x x x x x x x x x x
13 Knocking/pinging Acceleration/cruise x x x x x
14 Poor fuel economy x x x x x x x x
15 Emission compliance x x x x x x x x x x x
16 High oil consumption/leakage x
17 Cooling system concerns Overheating
18 Cooling system concerns Runs cold
19 Exhaust smoke x x x x
20 Fuel odor (in engine compartment) x x x
21 Engine noise
22 Vibration concerns (engine)
23 A/C does not work sufficiency
A/C always on or A/C compressor
24
runs continuously.
25 A/C does not cut off under wide open throttle
26 Exhaust sulphur smell x
27 Fuel refill concerns x
28 Fuel filling shut off issues x
29 Spark plug condition x x x x
acxuuw00000313

01-03–11
1871-1U-06B(01-03).fm 12 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

X: Applied
Possible factor

IAT sensor 1 (integrated in MAF sensor) or related circuit

Boost air temperature sensor (integrated in MAP sensor)

Front or rear HO2S sensor or related circuit malfunction
Main relay malfunction (mechanically or electrically)

Fuel pressure sensor or related circuit malfunction

Poor PCM ground or vehicle ground (open)
Constant voltage supply circuit malfunction

Brake switch or related circuit malfunction

MAP sensor or related circuit malfunction

ECT sensor or related circuit malfunction
Electrical connector disconnection
No battery power supply to PCM
Fuel shut off valve malfunction

or related circuit malfunction

Nonreturn valve malfunction

malfunction
Troubleshooting item
1 Melting of main or other fuses
2 MIL illuminates x x x x x x x x
3 Will not crank x
4 Hard start/long crank/erratic start/erratic crank x x x
5 Engine stalls After start/at idle x x x x x
6 Cranks normally but will not start x x x x
7 Slow return to idle x x
8 Engine runs rough/rolling idle x x x x
9 Fast/idle runs on x
10 Low idle/stalls during deceleration x x x x
Engine stalls/quits Acceleration/cruise x x x x x x
Engine runs rough Acceleration/cruise x x x x x x
Misses Acceleration/cruise x x x x x x
11 Acceleration/cruise/
Buck/jerk deceleration
x x x x x x
Hesitation/stumble Acceleration/cruise x x x x x x
Surges Acceleration/cruise x x x x x x
12 Lack/loss of power Acceleration/cruise x x x x x
13 Knocking/pinging Acceleration/cruise x x x x
14 Poor fuel economy x x x x x
15 Emission compliance x x x x x x
16 High oil consumption/leakage
17 Cooling system concerns Overheating
18 Cooling system concerns Runs cold
19 Exhaust smoke x x x x x
20 Fuel odor (in engine compartment)
21 Engine noise
22 Vibration concerns (engine)
23 A/C does not work sufficiency
A/C always on or A/C compressor
24
runs continuously.
25 A/C does not cut off under wide open throttle
26 Exhaust sulphur smell x
27 Fuel refill concerns x x
28 Fuel filling shut off issues x x
29 Spark plug condition x x x
acxuuw00000314

01-03–12
1871-1U-06B(01-03).fm 13 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

X: Applied
Possible factor

Accelerator position sensor or related circuit malfunction

lmproper gap between CKP sensor and pulse wheel
CMP sensor pulse wheel (camshaft) is damaged

P/S pressure switch or related circuit malfunction

CMP sensor damaged (e.g.open or short circuit)

CKP sensor damaged (e.g.open or short circuit)

01-03

A/C relay (A/C control signal circuit) malfunction

Cruise control system operation improperly
Knock sensor or related circuit malfunction
MAF sensor or related circuit malfunction
P/N position switch in TR switch open

TP sensor or related circuit malfunction

Improper refrigerant charging amount

CKP sensor pulse wheel damaged

A/C system improper operation

Improper vehicle speed signal
Troubleshooting item TR switch misadjustment
1 Melting of main or other fuses
2 MIL illuminates x x x x x x x x
3 Will not crank x x
4 Hard start/long crank/erratic start/erratic crank x x x x x x
5 Engine stalls After start/at idle x x x x x x x x x x
6 Cranks normally but will not start x x x x x x x
7 Slow return to idle x x x x x x x x x
8 Engine runs rough/rolling idle x x x x x x x x x x x
9 Fast/idle runs on x x x x
10 Low idle/stalls during deceleration x x x x x x x x x x
Engine stalls/quits Acceleration/cruise x x x x x x x x x x
Engine runs rough Acceleration/cruise x x x x x x x x x x
Misses Acceleration/cruise x x x x x x x x x x
11 Acceleration/cruise/
Buck/jerk deceleration
x x x x x x x x x x
Hesitation/stumble Acceleration/cruise x x x x x x x x x x
Surges Acceleration/cruise x x x x x x x x x x
12 Lack/loss of power Acceleration/cruise x x x x x x x x x x
13 Knocking/pinging Acceleration/cruise x x x x x
14 Poor fuel economy x x x x x x x x x
15 Emission compliance x x x x x x x x x
16 High oil consumption/leakage
17 Cooling system concerns Overheating x x
18 Cooling system concerns Runs cold
19 Exhaust smoke x x x x x
20 Fuel odor (in engine compartment)
21 Engine noise
22 Vibration concerns (engine)
23 A/C does not work sufficiency x x x
A/C always on or A/C compressor
24
runs continuously.
x x
25 A/C does not cut off under wide open throttle x
26 Exhaust sulphur smell
27 Fuel refill concerns
28 Fuel filling shut off issues
29 Spark plug condition x
acxuuw00000315

01-03–13
1871-1U-06B(01-03).fm 14 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

X: Applied
Possible factor

Immobilizer system or related circuit malfunction

A/C compressor magnetic clutch malfunction

Advanced keyless entry system malfunction

Immobilizer system operating properly
Improper balance of wheels and tires
ATX related parts malfunction

Suspension malfunction
Drive line malfunction
Improper ATF level

Brake dragging

Loose parts
Troubleshooting item
1 Melting of main or other fuses
2 MIL illuminates
3 Will not crank x x x
4 Hard start/long crank/erratic start/erratic crank
5 Engine stalls After start/at idle x
6 Cranks normally but will not start x
7 Slow return to idle
8 Engine runs rough/rolling idle
9 Fast/idle runs on
10 Low idle/stalls during deceleration x
Engine stalls/quits Acceleration/cruise x
Engine runs rough Acceleration/cruise x
Misses Acceleration/cruise x
11 Acceleration/cruise/
Buck/jerk deceleration x
Hesitation/stumble Acceleration/cruise x
Surges Acceleration/cruise x
12 Lack/loss of power Acceleration/cruise x x
13 Knocking/pinging Acceleration/cruise
14 Poor fuel economy x x
15 Emission compliance
16 High oil consumption/leakage
17 Cooling system concerns Overheating
18 Cooling system concerns Runs cold
19 Exhaust smoke
20 Fuel odor (in engine compartment)
21 Engine noise x
22 Vibration concerns (engine) x x x x
23 A/C does not work sufficiency x
A/C always on or A/C compressor x
24
runs continuously.
25 A/C does not cut off under wide open throttle
26 Exhaust sulphur smell
27 Fuel refill concerns
28 Fuel filling shut off issues
29 Spark plug condition
acxuuw00000316

End Of Sie

01-03–14
1871-1U-06B(01-03).fm 15 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.1 MELTING OF MAIN OR OTHER FUSES[L3 WITH TC]
id010339800700

1 MELTING OF MAIN OR OTHER FUSES

[TROUBLESHOOTING HINTS]
Inspect condition of fuse.

01-03

Shorted wiring harness Deterioration

Fuse Replace fuse

Repair shorted wiring harness and replace fuse

Damaged fuse Related wiring harness

MAIN MAIN fuse
• Starter
• Generator
IGN 1 IGN 1 fuse
• Room fuse
• Ignition switch
— Starter relay
— Starter relay No.2
— PCM
IGN 2 IGN 2 fuse
• Ignition switch
• Starter relay
— Engine fuse
— Meter fuse
— Starter
ENGINE (15A) ENGINE fuse (15A)
• Fuel pump speed control relay
• Fuel pump relay
• Injector relay
• Ignition coil
— PCM
ENGINE (30A) ENGINE fuse (30A)
• Main relay
FAN 1 FAN 1 fuse
• Cooling fan relay No.1
— Fan control module main
FAN 2 FAN 2 fuse
• Cooling fan relay No.2
— PCM
— Fan control module sub
FUEL FUEL fuse
• Fuel pump resistor
• Fuel pump speed control relay
— Fuel pump relay
— Fuel pump unit
METER METER fuse
• Starter relay No.2
— TCM
ROOM ROOM fuse
• DLC-2
INJ INJ fuse
• Injector relay
— PCM

01-03–15
1871-1U-06B(01-03).fm 16 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Damaged fuse Related wiring harness
ETC ETC fuse
• PCM
• Drive-by-wire relay
ECM ECM fuse
• PCM
• Drive-by-wire relay
• Cooling fan relay No.1
• Cooling fan relay No.2
ENG BAR 1 ENG BAR 1 fuse
• Evapo system leak detection pump
• Mass air flow sensor
• Purge solenoid
• Waste gate control valve
• Variable swirl solenoid valve
• Camshaft position sensor
• Crankshaft position sensor
• PCM
• Oil control valve
• EGR valve
ENG BAR 2 ENG BAR 2 fuse
• HO2S (front)
ENG BAR 3 ENG BAR 3 fuse
• HO2S (rear)
— PCM

End Of Sie
NO.2 MIL ILLUMINATES[L3 WITH TC]
id010339800800

2 MIL ILLUMINATES
DESCRIPTION MIL illuminates incorrectly.
• PCM illuminates for emission-related concern (DTC is stored in PCM)
• Instrument cluster malfunction
POSSIBLE CAUSE
Note
• If the MIL blinks at a steady rate, a misfire condition could possibly exist.

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Connect the M-MDS to the DLC. Yes DTC is displayed:
Turn the ignition switch to the ON position. • Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
• Inspect for an open or short to circuit between
instrument cluster terminal 2T and PCM terminal
1AI
• Inspect for an open or short to circuit between
instrument cluster terminal 2R and PCM terminal
1AM
(See09-22-3 INSTRUMENT CLUSTER
INSPECTION.)
2 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–16
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
NO.3 WILL NOT CRANK[L3 WITH TC]
id010339800900

3 WILL NOT CRANK

DESCRIPTION Starter does not work.
• Open starter circuit between the ignition switch and the starter
• Low or dead battery
• Charging system malfunction
• Starter malfunction 01-03
• TR switch misadjustment
POSSIBLE CAUSE
• P/N position switch in TR switch open
• Seized/hydro-locked engine, flywheel
• Immobilizer system and/or related circuit malfunction
• Immobilizer system operates properly (Key is not registered.)
• Advanced keyless entry system malfunction
Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Note Yes Inspect the advanced keyless entry system and repair
• The following test should be performed on or replace according to the inspection result.
the advanced keyless entry system. If not No Go to the next step.
equipped, go to the next step.

Start the engine using the standard ignition key.

Does the engine start?
2 Connect the M-MDS to the DLC-2. Yes Both conditions are appear:
Do any of the following conditions appear? Go to Step 6.
• Engine does not complete start. No Either or other condition appears:
• DTC B1681 is displayed. Go to the next step.
3 Is the coil connector securely connected to the Yes Go to the next step.
coil? No Connect the connector securely, retest from Step 2.
4 Does the security light illuminate? Yes Go to the next step.
No Inspect and repair or replace the following:
• Instrument cluster
(See09-22-3 INSTRUMENT CLUSTER
INSPECTION.)
With advanced keyless entry system
• Between keyless CM 3X and instrument cluster 2R
• Between keyless CM 3W and instrument cluster 2T
Without advanced keyless entry system
• Between PCM 1AM and instrument cluster 2R
• Between PCM 1AI and instrument cluster 2T
5 Retrieve DTCs using the M-MDS. Are any of the Yes Go to the appropriate DTC test.
following DTCs present? (See09-02B-3 DTC TABLE[IMMOBILIZER SYSTEM
DTC B1213, B1342, B1600, B1601, B1602, (ADVANCED KEYLESS SYSTEM)].)
B1681, B2103, B2431 No Advanced keyless entry system is not equipped:
Go to the next step.
Advanced keyless entry system is equipped:
Go to Step 11.
6 Is there continuity between PCM terminal 1BD, Yes Go to the next step.
1AZ, 1BH and ground? No Repair or replace the wiring harness.
7 Turn the ignition switch to the ON position Yes Go to the next step.
(Engine off.) No Repair or replace the wiring harness.
Measure voltage between PCM terminal 1BD,
1AZ, 1BH and ground.
Is the voltage below 1.0V?
8 Turn the ignition switch to the ON position. Yes Go to the next step.
(Engine off) No Repair or replace the wiring harness.
Access the VPWR PID.
Is the VPWR PID normal?
VPWR PID
Battery voltage
9 Disconnect the coil connector. Yes Go to the next step.
Turn the ignition switch to the ON position. No Repair or replace the wiring harness between coil
(Engine off) connector terminal D and the fuse panel.
Is there battery voltage at coil connector terminal
D?

Revised 10/2006 (Ref. No. R144/06) 01-03–17

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
STEP INSPECTION RESULTS ACTION
10 Inspect the following wiring harness and Yes Repair or replace malfunctioning part.
connectors. No With advanced keyless entry system
With advanced keyless entry system
Go to the next step.
• Between coil terminal A and keyless CM
terminal 3U Without advanced keyless entry system
• Between coil terminal B and keyless CM Go to Step 14.
terminal 3V
Without advanced keyless entry system
• Between coil terminal A and instrument
cluster 2Q
• Between coil terminal B and instrument
cluster 2S
Is there any malfunction (open or short circuit,
terminal corrosion, etc.)?
11 Is there continuity between the keyless CM Yes Go to the next step.
harness-side connector terminal 2B and body No Repair or replace the wiring harness.
ground?
12 Turn the ignition switch to the ON position. Yes Go to the next step.
Measure the voltage between keyless CM No Repair or replace the wiring harness.
harness-side connector terminal 2B and body
ground.
Is the voltage below 1.0V?
13 Turn the ignition switch to the ON position. Yes Go to the next step.
(Engine off.) No Repair or replace the wiring harness.
Measure the voltage between keyless CM
harness-side connector terminal 2A, 2C, 2D and
body ground.
Is the voltage B+?
14 Inspect the following wiring harnesses and Yes Repair or replace malfunctioning part.
connectors. No Go to the next step.
• Between keyless CM terminal 3W and PCM
1AI
• Between keyless CM terminal 3X and PCM
1AM
Is there any malfunction (open or short circuit,
terminal corrosion, etc.)?
15 Turn the ignition switch off. Yes Go to the next step.
Disconnect the coil connector. No Repair or replace the wiring harness.
Turn the ignition switch to the ON position.
(Engine off.)
Measure the voltage between coil harness-side
connector terminal D and body ground.
Is the voltage B+?
16 Is there continuity between PCM terminal 1B Yes Go to the next step.
and the starter relay with P or N position? No Repair or replace the wiring harness.
17 Inspect the following: Yes Go to the next step.
• Battery connection No Service if necessary.
• Battery condition Repeat Step 1.
• Fuses
Are all items normal?
18 Is a clicking sound heard from the starter when Yes Go to the next step.
the ignition switch is turned to the START No Go to Step 20.
position?
19 Inspect the starting system. Yes Inspect for a seized/hydro-locked engine, flywheel.
(See01-19-3 STARTER INSPECTION[L3 WITH No Repair or replace components if necessary required.
TC].)
Is the starting system normal?
20 Do any other electrical accessories work? Yes Go to the next step.
No Inspect the charging system.
(See01-17-2 BATTERY INSPECTION[L3 WITH TC].)
(See01-17-6 GENERATOR INSPECTION[L3 WITH
TC].)
21 Inspect adjustment of TR switch. Yes Go to the next step.
(See05-17-11 TRANSAXLE RANGE (TR) No Perform N position leaning.
SWITCH INSPECTION[AW6A-EL, AW6AX-EL].) If problem remains replace TR switch.
Is TR switch adjusted properly? (See05-17-11 TRANSAXLE RANGE (TR) SWITCH
INSPECTION[AW6A-EL, AW6AX-EL].)

01-03–18 Revised 10/2006 (Ref. No. R144/06)

1871-1U-06B(01-03).fm 19 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
22 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Inspect the following:
• START circuit in the ignition switch
• Open circuit between ignition switch and starter 01-03
• Starter interlock switch
23 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–19
1871-1U-06B(01-03).fm 20 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.4 HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK[L3 WITH TC]
id010339801000

4 HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK

• Starter cranks the engine at normal speed but the engine requires excessive cranking time before
DESCRIPTION starting.
• Battery is operating normally
• Vacuum leakage
• Poor fuel quality
• Starting system malfunction
• Erratic signal to ignition coils
• Spark plug malfunction
• Air leakage from intake-air system
• Improper air/fuel mixture ratio control
• Incorrect fuel injection timing
• Erratic signal from CKP sensor
• Erratic signal from CMP sensor
• Front and/rear HO2S sensor or related circuit malfunction
• ECT sensor or related circuit malfunction
• MAF sensor or related circuit malfunction
• Intake-air system restriction
• Improper operation of electronic throttle control system
• PCV valve malfunction
• Inadequate fuel pressure (high or low pressure side)
• Relief valve malfunction (built-in delivery pipe)
• Spill valve control solenoid valve malfunction (built-in high pressure fuel pump)
• Fuel filter clogging
• Fuel line restriction
• Fuel leakage
• Fuel pump (low-side) resister or related circuit malfunction
• Fuel injector malfunction
POSSIBLE CAUSE • Fuel pressure sensor malfunction
• High pressure fuel pump malfunction
• Exhaust system or three-way catalytic converter restriction
• EGR valve malfunction
• Purge solenoid valve malfunction
• Low engine compression
• Improper valve timing

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–20
1871-1U-06B(01-03).fm 21 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Inspect for the following: Yes Go to the next step.
• Fuel quality (proper octane, contamination, No Service if necessary.
winter/summer blend) Repeat Step 1.
• Fuel leakage
• Intake-air system leakage or restriction
• Vacuum leakage
Are all items normal?
01-03
2 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
3 Access the ECT PID using the M-MDS. Yes Go to the next step.
Verify that the ECT PID isless than 116°C No The cause of this concern could be from the cooling
{241°F} during driving. system overheating.
Is the ECT PID less than specified? Perform the symptom troubleshooting “NO.17
COOLING SYSTEM CONCERNS - OVERHEATING.”
(See01-03-60 NO.17 COOLING SYSTEM
CONCERNS-OVERHEATING[L3 WITH TC].)
4 Will the engine run smoothly at part throttle? Yes Go to the next step.
No Go to Step 6.
5 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damage/scratching.)
(See01-03-78 ENGINE CONTROL SYSTEM If normal, go to the next step.
OPERATION INSPECTION[L3 WITH TC].) No Inspect or replace the malfunctioning parts, according
Does the electronic throttle control system work to the inspection results.
properly?
6 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does the EGR system operate properly?
7 Perform the Purge Control System Operation Yes Go to the next step.
inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the purge solenoid valve work properly?
8 Inspect the CMP and CKP sensor for the Yes Repair or replace the malfunctioning part according to
following; the inspection results.
• Installation condition No Go to the next step.
(See01-40-45 CAMSHAFT POSITION
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in the wiring harnesses.
Is there any malfunction detected?
9 Access and monitor following the PIDs using the Yes Go to the next step.
data monitor function. No Inspect and repair or replace suspected parts and the
• ECT related harnesses.
• MAF If the malfunction remains, perform the intermittent
• O2S11 concern troubleshooting.
• O2S12 (See01-03-76 INTERMITTENT CONCERN
• LONGFT1 TROUBLESHOOTING[L3 WITH TC].)
• SHTFT1
Do the PIDs indicate the correct values under
trouble condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
10 Remove and shake the PCV valve. Yes Go to the next step.
Does the PCV valve rattle? No Replace the PCV valve.
11 Inspect for restriction in the exhaust system and Yes Replace the malfunctioning part.
the three-way catalytic converter (TWC). No Go to the next step.
Is there any restriction?

01-03–21
1871-1U-06B(01-03).fm 22 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
12 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Is a strong blue spark visible at each cylinder?
13 Access and monitor the FUEL_PRES PID. Yes Go to Step 38.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
14 Is the vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 16.
15 Inspect the fuel pressure sensor. Yes Go to Step 17.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
16 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 21.
Is the FUEL_PRES PID value within the No Inspect the fuel pressure sensor.
specified? (See01-40-35 FUEL PRESSURE SENSOR
(See01-40-6 PCM INSPECTION[L3 WITH TC].) INSPECTION[L3 WITH TC].)
17 Connect the fuel pressure gauge between the Yes Go to the next step.
fuel pump and the high pressure fuel pump. No Inspect for the following:
Measure the fuel pressure line of the low • Fuel line restriction
pressure side. • Fuel filter clogging
(See01-40-35 FUEL PRESSURE SENSOR If normal replace the fuel pump.
INSPECTION[L3 WITH TC].)
Is the fuel pressure within the specification?
18 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are the fuel injectors normal? INSTALLATION[L3 WITH TC].)
19 Measure the compression pressure for each Yes Go to the next step.
cylinder. No Inspect for the following:
(See01-10-9 COMPRESSION INSPECTION[L3 • Damaged valve seat
WITH TC].) • Worn valve stem and valve guide
Does the starting system work properly? • Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service if necessary.
20 Inspect the starting system. Yes Replace the injector driver module.
(See01-19-3 STARTER INSPECTION[L3 WITH If the problem remains, overhaul the engine.
TC].) No Repair or replace the malfunctioning part.
Does the starting system work properly?
21 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–22
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
NO.5 ENGINE STALLS-AFTER START/AT IDLE[L3 WITH TC]
id010339801100

5 ENGINE STALLS - AFTER START/AT IDLE

DESCRIPTION • Engine stops unexpectedly.
• A/C system improper operation
• Air leakage from intake-air system
• Purge solenoid valve malfunction
• Improper operation of electronic throttle control system 01-03
• EGR valve malfunction
• Vacuum leakage
• Engine overheating
• Low engine compression
• Ignition system malfunction
• Poor fuel quality
• PCV valve malfunction
• Intake-air system restriction
• Exhaust system and/or three-way catalytic converter (TWC) restriction or clogging
• Electrical connector disconnection
• Open or short circuit in the fuel pump (low-side) body or related wiring harness
• Fuel pump resister or related circuit malfunction
• No battery power supply to PCM or poor ground
• Inadequate fuel pressure (high or low pressure side)
• Fuel pressure sensor or related circuit malfunction
• Spill valve control solenoid valve malfunction (built-in high pressure fuel pump)
• Relief valve malfunction (built-in delivery pipe)
• Fuel pump (low-side) body mechanical malfunction
• Fuel leakage
• Fuel line restriction
• Fuel filter clogging
• Incorrect fuel injection timing
• High pressure fuel pump malfunction
• Fuel injector malfunction
POSSIBLE CAUSE • Ignition coil malfunction
• Improper air/fuel mixture ratio control
• No signal from CKP sensor due to sensor, related wiring harness or wrong installation
• Erratic signal from CMP sensor
• Front and/or rear HO2S sensor or related circuit malfunction
• ECT sensor or related circuit malfunction
• Accelerator positions sensor or related circuit malfunction
• MAF sensor or related circuit malfunction
• Improper valve timing
• Improper operation variable valve timing control system
• Immobilizer system and/or circuit malfunction

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–23
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Connect the M-MDS to the DLC-2. Yes Both conditions are appear:
Do any of the following conditions appear? Go to Step 5.
• Engine does not start completely. No Either or other condition appears:
• DTC B1681 is displayed. Go to the next step.
2 Does the engine stall after approx. 2s from Yes Go to the next step.
when it is started? No Is the immobilizer system is normal?
Go to Step 16.
3 Is the coil connector securely connected to coil? Yes Go to the next step.
No Connect the connector securely, retest from Step 2.
4 Does the security light illuminate? Yes Go to the next step.
No Inspect and repair or replace the following:
• Instrument cluster
(See09-22-3 INSTRUMENT CLUSTER
INSPECTION.)
With advanced keyless entry system
• Between keyless CM 3X and instrument cluster 2R
• Between keyless CM 3W and instrument cluster 2T
Without advanced keyless entry system
• Between PCM 1AM and instrument cluster 2R
• Between PCM 1AI and instrument cluster 2T
5 Retrieve the DTC using the M-MDS. Yes Go to appropriate DTC test.
Are any of the following DTCs present? (See09-02B-3 DTC TABLE[IMMOBILIZER SYSTEM
DTC B1213, B1342, B1600, B1601, B1602, (ADVANCED KEYLESS SYSTEM)])
B1681, B2103, B2431 No Go to the next step.
6 Is there continuity between PCM terminal 1BD, Yes Go to the next step.
1AZ, 1BH and ground? No Repair or replace the wiring harness.
7 Turn the ignition switch to the ON position Yes Go to the next step.
(Engine off.) No Repair or replace the wiring harness.
Measure the voltage between PCM terminal
1BD, 1AZ, 1BH and ground.
Is the voltage below 1.0V?
8 Turn the ignition switch to the ON position. Yes Go to the next step.
(Engine off) No Repair or replace the wiring harness.
Access the VPWR PID.
Is the VPWR PID normal?
VPWR PID
Battery voltage
9 Disconnect the coil connector. Yes Go to the next step.
Turn the ignition switch to the ON position. No Repair or replace the wiring harness between coil
(Engine off) connector terminal D and the fuse panel.
Is there battery voltage at coil connector terminal
D?
10 Inspect the following wiring harness and Yes Repair or replace malfunction part.
connectors. No With advanced keyless entry system
With advanced keyless entry system Go to the next step.
• Between coil terminal A and keyless CM Without advanced keyless entry system
terminal 3U Go to Step 14.
• Between coil terminal B and keyless CM
terminal 3V
Without advanced keyless entry system
• Between coil terminal A and instrument
cluster 2Q
• Between coil terminal B and instrument
cluster 2S
Is there any malfunction (open or short circuit,
terminal corrosion, etc.)?
11 Is there continuity between the keyless CM Yes Go to the next step.
harness-side connector terminal 2B and body No Repair or replace the wiring harness.
ground?
12 Turn the ignition switch to the ON position. Yes Go to the next step.
Measure the voltage between keyless CM No Repair or replace the wiring harness.
harness-side connector terminal 2B and body
ground.
Is the voltage below 1.0V?

01-03–24 Revised 10/2006 (Ref. No. R144/06)

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
STEP INSPECTION RESULTS ACTION
13 Turn the ignition switch to the ON position. Yes Go to the next step.
(Engine off.) No Repair or replace the wiring harness.
Measure the voltage between keyless CM
harness-side connector terminal 2A, 2C, 2D and
body ground.
Is the voltage B+?
14 Inspect the following wiring harnesses and Yes Repair or replace malfunctioning part.
connectors.
01-03
No Go to the next step.
• Between keyless CM terminal 3W and PCM
1AI
• Between keyless CM terminal 3X and PCM
1AM
Is there any malfunction (open or short circuit,
terminal corrosion, etc.)?
15 Turn the ignition switch off. Yes Go to the next step.
Disconnect the coil connector. No Repair or replace the wiring harness.
Turn the ignition switch to the ON position.
(Engine off.)
Measure the voltage between coil harness-side
connector terminal D and body ground.
Is the voltage B+?
16 Inspect for the following: Yes Go to the next step.
• Fuel quality (proper octane, contamination, No Service if necessary.
winter/summer blend) Repeat Step 16.
• Intake-air system leakage and restriction
• Electrical connectors
• Poor connection for PCM ground and body
ground
• Fuel leakage
• Vacuum leakage
Are all items normal?
17 Perform the self-test function using M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is the DTC displayed? No No DTC is displayed:
Go to the next step.
18 Access the ECT PID using the M-MDS. Yes Go to the next step.
Verify that the ECT PID is less than 116 °C {241 No The cause of this concern could from be cooling
°F} during driving. system overheating.
Is the ECT PID less than specified? Perform the symptom troubleshooting “NO.17
COOLING SYSTEM CONCERNS - OVERHEATING.”
(See01-03-60 NO.17 COOLING SYSTEM
CONCERNS-OVERHEATING[L3 WITH TC].)
19 Access the VPWR PID. Yes Go to the next step.
Turn the ignition switch to the ON position. No Repair or replace the wiring harness between main
(Engine off) relay terminal D and PCM terminal 1BE and 2E.
Does the VPWR PID indicateB+?
20 Perform the A/C Cut-off Operation Inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Repair or replace malfunctioning parts according to the
OPERATION INSPECTION[L3 WITH TC].) inspection results.
Does the A/C Cut-off Operation work properly?
21 Will the engine run smoothly at part throttle? Yes Go to the next step.
No Go to Step 23.
22 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damaged/
(See01-03-78 ENGINE CONTROL SYSTEM scratching.)
OPERATION INSPECTION[L3 WITH TC].) If normal, go to the next step.
Does the electronic throttle control system work No Inspect or replace the malfunctioning parts, according
properly? to the inspection results.
23 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does EGR system operate properly?
24 Perform the Purge Control System Operation Yes Go to the next step.
inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the purge solenoid valve work properly?
Revised 10/2006 (Ref. No. R144/06) 01-03–25
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
STEP INSPECTION RESULTS ACTION
25 Perform the Variable Valve Timing Control Yes Inspect the valve timing.
System Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable valve timing control system
work properly?
26 Inspect the CMP and CKP sensor for the Yes Repair or replace the malfunctioning part according
following; inspection results.
• Installation condition No Go to the next step.
(See01-40-45 CAMSHAFT POSITION
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in the wiring harnesses
Is there any malfunction detected?
27 Access and monitor the following PIDs using the Yes Go to the next step.
data monitor function. No Inspect and repair or replace suspected parts and
• ECT related harnesses.
• APP If the malfunction remains, perform the intermittent
• MAF concern troubleshooting procedure.
• O2S11 (See01-03-76 INTERMITTENT CONCERN
• O2S12 TROUBLESHOOTING[L3 WITH TC].)
• LONGFT1
• SHTFT1
Do the PIDs indicate the correct values under
the malfunction condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
28 Remove and shake the PCV valve. Does the Yes Go to the next step.
PCV valve rattle? No Replace the PCV valve.
29 Inspect for restriction in the exhaust system and Yes Replace malfunctioning part.
Three-way catalytic converter (TWC). No Go to the next step.
Is there any restriction?
30 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Is a strong blue spark visible at each cylinder?
31 Access and monitor the FUEL_PRES PID. Is the Yes Go to Step 35.
FUEL_PRES PID value within the specification? No Go to the next step.
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
32 Is the vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 34.
33 Inspect the fuel pressure sensor. Yes Go to Step 35.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
34 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 38.
Is the FUEL_PRES PID value within the No Inspect the fuel pressure sensor.
specified? (See01-40-35 FUEL PRESSURE SENSOR
(See01-40-6 PCM INSPECTION[L3 WITH TC].) INSPECTION[L3 WITH TC].)
35 Connect the fuel pressure gauge between the Yes Go to the next step.
fuel pump and the high pressure fuel pump. No Inspect for the following:
Measure the fuel pressure line of the low • Fuel line restriction
pressure side. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If normal, replace the fuel pump.
INSPECTION[L3 WITH TC].)
Is the fuel pressure within the specification?
36 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are the fuel injectors normal? INSTALLATION[L3 WITH TC].)

01-03–26
1871-1U-06B(01-03).fm 27 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
37 Measure the compression pressure for each Yes Replace the injector driver module.
cylinder. If the problem remains, overhaul the engine.
(See01-10-9 COMPRESSION INSPECTION[L3 No Inspect for the following:
WITH TC].) • Damaged valve seat
Are the compression pressures within the • Worn valve stem and valve guide
specification? • Worn or stuck piston ring
• Worn piston, piston ring or cylinder 01-03
• Improper valve timing
Service if necessary.
38 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–27
1871-1U-06B(01-03).fm 28 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.6 CRANKS NORMALLY BUT WILL NOT START[L3 WITH TC]
id010339801200

6 CRANKS NORMALLY BUT NOT START

• Starter cranks engine at normal speed but engine will not run.
• Refer to symptom troubleshooting “No.5 Engine stalls” if this symptom appears after the engine stalls.
DESCRIPTION
• Fuel is in tank.
• Battery is in normal condition.
• Air leakage from intake-air system
• Open PCM ground or vehicle body ground
• Improper operation of electronic throttle control system
• EGR valve malfunction
• Low engine compression
• Engine overheating
• Vacuum leakage
• Ignition system malfunction
• Poor fuel quality
• PCV valve malfunction
• Intake-air system restriction
• Improper air/fuel mixture ratio control
• No signal from CKP sensor due to sensor, related wire or incorrect installation
• No signal from CMP sensor due to sensor, related wire or incorrect installation
• Front and/or rear HO2S sensor or related circuit malfunction
• ECT sensor or related circuit malfunction
• Accelerator position sensor or related circuit malfunction
• MAF sensor or related circuit malfunction
• High pressure fuel pump malfunction
• Exhaust system or three-way catalytic converter (TWC) malfunction
• Disconnected electrical connector
• Open or short in fuel pump (low-side) body and related harness
• Inadequate fuel pressure (high or low pressure side)
• Fuel pressure sensor or related circuit malfunction
• Relief valve malfunction (built-in high pressure fuel pump)
• Fuel line clogging or restriction
• Incorrect fuel injection timing
POSSIBLE CAUSE • Fuel pump resistor or control relay malfunction
• Fuel pump (low-side) mechanical malfunction
• Fuel leakage
• Fuel injector malfunction
• Purge solenoid valve malfunction
• Spark plug malfunction
• Ignition coil malfunction
• Improper valve timing
• Improper variable valve timing control system operation
• Immobilizer system or related circuit malfunction

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–28
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Connect the M-MDS to the DLC-2. Yes Both conditions are appear:
Do any of the following conditions appear? Go to Step 5.
• Engine does not completely start. No Either or other condition appears:
• DTC B1681 is displayed. Go to the next step.
2 Does the engine stall after approx. 2s from Yes Go to the next step.
when it is started? No Is the Is the immobilizer system is normal. 01-03
Go to Step 20.
3 Is the coil connector securely connected to coil? Yes Go to the next step.
No Connect the connector securely, retest from Step 1.
4 Does the security light illuminate? Yes Go to the next step.
No Inspect and repair or replace the following:
• Instrument cluster
(See09-22-3 INSTRUMENT CLUSTER
INSPECTION.)
With advanced keyless entry system
• Between keyless CM 3X and instrument cluster 2R
• Between keyless CM 3W and instrument cluster 2T
Without advanced keyless entry system
• Between PCM 1AM and instrument cluster 2R
• Between PCM 1AI and instrument cluster 2T
5 Retrieve the DTC using the M-MDS. Yes Go to appropriate DTC test.
Are any of the following DTCs present? (See09-02B-3 DTC TABLE[IMMOBILIZER SYSTEM
DTC (ADVANCED KEYLESS SYSTEM)].)
B1213, B1342, B1600, B1601, B1602, B1681, No Go to the next step.
B2103, B2431
6 Is there continuity between PCM terminal 1BD, Yes Go to the next step.
1AZ, 1BH and ground? No Repair or replace the wiring harness.
7 Turn the ignition switch to the ON position Yes Go to the next step.
(Engine off.) No Repair or replace the wiring harness.
Measure the voltage between PCM terminal
1BD, 1AZ, 1BH and ground.
Is the voltage below 1.0V?
8 Turn the ignition switch to the ON position. Yes Go to the next step.
(Engine off) No Repair or replace the wiring harness.
Access the VPWR PID.
Is the VPWR PID normal?
VPWR PID
Battery voltage
9 Disconnect the coil connector. Yes Go to the next step.
Turn the ignition switch to the ON position. No Repair or replace the wiring harness between coil
(Engine off) connector terminal D and the fuse panel.
Is there battery voltage at coil connector terminal
D?
10 Inspect the following wiring harness and Yes Repair or replace malfunctioning part.
connectors. No With advanced keyless entry system
With advanced keyless entry system Go to the next step.
• Between coil terminal A and keyless CM Without advanced keyless entry system
terminal 3U
Go to Step 14.
• Between coil terminal B and keyless CM
terminal 3V
Without advanced keyless entry system
• Between coil terminal A and instrument
cluster 2Q
• Between coil terminal B and instrument
cluster 2S
Is there any malfunction (open or short circuit,
terminal corrosion, etc.)?
11 Is there continuity between the keyless CM Yes Go to the next step.
harness-side connector terminal 2B and body No Repair or replace the wiring harness.
ground?
12 Turn the ignition switch to the ON position. Yes Go to the next step.
Measure the voltage between keyless CM No Repair or replace the wiring harness.
harness-side connector terminal 2B and body
ground.
Is the voltage below 1.0V?

Revised 10/2006 (Ref. No. R144/06) 01-03–29

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
STEP INSPECTION RESULTS ACTION
13 Turn the ignition switch to the ON position. Yes Go to the next step.
(Engine off.) No Repair or replace the wiring harness.
Measure the voltage between keyless CM
harness-side connector terminal 2A, 2C, 2D and
body ground.
Is the voltage B+?
14 Inspect the following wiring harnesses and Yes Repair or replace malfunctioning part.
connectors. No Go to the next step.
• Between keyless CM terminal 3W and PCM
1AI
• Between keyless CM terminal 3X and PCM
1AM
Is there any malfunction (open or short circuit,
terminal corrosion, etc.)?
15 Turn the ignition switch off. Yes Go to the next step.
Disconnect the coil connector. No Repair or replace the wiring harness.
Turn the ignition switch to the ON position.
(Engine off.)
Measure the voltage between coil harness-side
connector terminal D and body ground.
Is the voltage B+?
16 Inspect for the following: Yes Go to the next step.
• Fuel quality (proper octane, contamination, No Service if necessary.
winter/summer blend) Repeat Step 16.
• Intake-air system leakage and restriction
• Electrical connectors
• Fuses
• Fuel leakage
• Vacuum leakage
• Poor connection for PCM ground and body
ground
Are all items normal?
17 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
18 Access the ECT PID using the M-MDS. Yes Go to the next step.
Verify that the ECT PID is less than 116°C No The cause of this concern could be from the cooling
{241°F} during driving. system overheating.
Is the ECT PID less than specified? Perform the symptom troubleshooting “NO.17
COOLING SYSTEM CONCERNS - OVERHEATING.”
(See01-03-60 NO.17 COOLING SYSTEM
CONCERNS-OVERHEATING[L3 WITH TC].)
19 Does the engine start with throttle close? Yes Go to the next step.
No Go to Step 25.
20 Perform the Variable Valve Timing Control Yes Inspect the valve timing.
System Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable valve timing control system
work properly?
21 Will the engine start and run smoothly at part Yes Go to the next step.
throttle? No Go to Step 23.
22 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damaged/
(See01-03-78 ENGINE CONTROL SYSTEM scratching.)
OPERATION INSPECTION[L3 WITH TC].) If normal, go to the next step.
Does the electronic throttle control system work No Inspect or replace the malfunctioning parts, according
properly? the to inspection results.
23 Access the RPM PID using the M-MDS. Yes Go to the next step.
Is the RPM PID indicating engine speed when No Inspect the CKP sensor for following;
the cranking engine. • Installation condition
(See01-40-42 CRANKSHAFT POSITION (CKP)
SENSOR REMOVAL/INSTALLATION[L3 WITH
TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in wiring harnesses Is there
any malfunction detected?

01-03–30 Revised 10/2006 (Ref. No. R144/06)

1871-1U-06B(01-03).fm 31 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
24 Inspect CMP sensor for the following; Yes Repair or replace the malfunctioning part according
• Installation condition inspection results.
(See01-40-45 CAMSHAFT POSITION No Go to the next step.
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in wiring harnesses Is
there any malfunction detected?
01-03
25 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does EGR system operate properly?
26 Perform the Purge Control System Operation Yes Go to the next step.
inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the purge solenoid valve work properly?
27 Access and monitor the following PIDs using the Yes Go to the next step.
data monitor function. No Inspect and repair or replace suspected parts and the
• ECT related harnesses.
• APP If the malfunction remains, perform the intermittent
• MAF concern troubleshooting procedure.
• O2S11 (See01-03-76 INTERMITTENT CONCERN
• O2S12 TROUBLESHOOTING[L3 WITH TC].)
• LONGFT1
• SHTFT1
Do the PIDs indicate the correct values under
the malfunction condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
28 Inspect for restriction in the exhaust system and Yes Replace malfunctioning part.
three-way catalytic converter (TWC). No Go to the next step.
Is there any restriction?
29 Remove and shake the PCV valve. Yes Go to the next step.
Does the PCV valve rattle? No Replace the PCV valve.
30 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Is a strong blue spark visible at each cylinder?
31 Access and monitor the FUEL_PRES PID. Yes Go to Step 38.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
32 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
MOnitor FUEL_PRES PID. Go to Step 37.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
33 Inspect the fuel pressure sensor. Yes Go to the next step.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
34 Connect the fuel pressure gauge between the Yes Go to the next step.
fuel pump and the high pressure fuel pump. No Inspect for the following:
Measure the fuel pressure line of the low • Fuel line restriction
pressure side. • Fuel filter clogging
(See01-40-35 FUEL PRESSURE SENSOR If normal, replace the fuel pump.
INSPECTION[L3 WITH TC].)
Is the fuel pressure within the specification?
35 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are the fuel injectors normal? INSTALLATION[L3 WITH TC].)

01-03–31
1871-1U-06B(01-03).fm 32 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
36 Measure the compression pressure for each Yes Replace the injector driver module.
cylinder. If the problem remains, overhaul the engine.
(See01-10-9 COMPRESSION INSPECTION[L3 No Inspect for the following:
WITH TC].) • Damaged valve seat
Are the compression pressures within the • Worn valve stem and valve guide
specification? • Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service if necessary.
37 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie
NO.7 SLOW RETURN TO IDLE[L3 WITH TC]
id010339801300

7 SLOW RETURN TO IDLE

• Engine takes more time than normal to return to idle speed.
DESCRIPTION
• Engine speed continues at fast idle after warm-up
• ECT sensor or related circuit malfunction
• Thermostat is stuck open
• Fuel injection timing is incorrect
• Erratic signal from CKP sensor
• Erratic signal from CMP sensor
• Accelerator position sensor or related circuit malfunction
• Air suction in intake-air system
• MAF sensor or related circuit malfunction
• Fuel pressure sensor or related circuit malfunction
• Excessive fuel pressure
• Relief valve malfunction (built-in delivery pipe)
• Fuel injector malfunction
• Cooling fan control system malfunction
• Improper load signal input
• Injector driver module or related circuit malfunction

POSSIBLE CAUSE Warning

The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Inspect air suction in intake-air system Yes Repair or replace as necessary.
components while racing engine to higher No Go to the next step.
speed.
Is any air suction?

01-03–32
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
2 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
3 Access the ECT PID. Yes Go to the next step.
Start and warm-up engine to normal operating No Go to symptom troubleshooting “NO.18 COOLING 01-03
temperature. SYSTEM CONCERNS, RUNS COLD”.
Is the ECT PID readingbelow 82°C {180°F}? (See01-03-61 NO.18 COOLING SYSTEM
CONCERNS-RUNS COLD[L3 WITH TC].)
4 Verify the cooling fan operation. Does the Yes Go to the next step.
cooling fan operate properly according ECT PID No Perform the Cooling Fan Control System Operation
value? Inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
5 Inspect CMP and CKP sensor for the following; Yes Repair or replace the malfunctioning part according
• Installation condition inspection results.
(See01-40-45 CAMSHAFT POSITION No Go to the next step.
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in the wiring harnesses.
Is there any malfunction detected?
6 Access and monitor following the PIDs using the Yes Go to the next step.
data monitor function. No Inspect and repair or replace suspected parts and the
• ECT related harnesses.
• APP If the malfunction remains, perform the intermittent
• MAF concern troubleshooting procedure.
• PSP (PCM terminal 2T) (See01-03-76 INTERMITTENT CONCERN
Do the PIDs indicate the correct values under TROUBLESHOOTING[L3 WITH TC].)
trouble condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
7 Access and monitor the FUEL_PRES PID. Yes Go to Step 11.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
8 Is the vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 10.
9 Inspect the fuel pressure sensor. Yes Go to Step 11.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
10 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 13.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
11 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are fuel injectors normal? INSTALLATION[L3 WITH TC].)
12 Remove the thermostat and inspection Yes Inspect and repair or replace the throttle body.
operation. If throttle body is normal or the problem remains,
(See01-12-11 THERMOSTAT REMOVAL/ replace the injector driver module.
INSTALLATION[L3 WITH TC].) No Replace thermostat.
(See01-12-11 THERMOSTAT INSPECTION[L3
WITH TC].)
Is the thermostat normal?

01-03–33
1871-1U-06B(01-03).fm 34 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
13 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie
NO.8 ENGINE RUNS ROUGH/ROLLING IDLE[L3 WITH TC]
id010339801400

8 ENGINE RUNS ROUGH/ROLLING IDLE

• Engine speed fluctuates between the specified idle speed and lower speed and, engine shakes
DESCRIPTION excessively.
• Idle speed is too slow and the engine shakes excessively.
• Air leakage from intake-air system
• A/C system improper operation
• Erratic signal to ignition coil
• Spark plug malfunction
• Purge solenoid valve malfunction
• Improper operation of electronic throttle control system
• EGR valve malfunction
• Low engine compression or excessive unbalance for each cylinder
• Improper valve timing
• Improper variable valve timing control system
• Poor fuel quality
• PCV valve malfunction
• Intake-air system restriction
• Exhaust system or three-way catalytic converter (TWC) restriction or clogging
• Disconnected electrical connectors
• Inadequate fuel pressure (high or low pressure side)
• Fuel pressure sensor or related circuit malfunction
• Spill valve control solenoid valve malfunction (built-in high pressure fuel pump)
• Relief valve malfunction (built-in delivery pipe)
• Fuel pump (low-side) body mechanical malfunction
• Fuel filter restriction or clogging
• Fuel leakage
• Incorrect fuel injection timing
• Unbalanced fuel injection amount for each cylinder
• High pressure fuel pump malfunction
• Fuel injector malfunction
POSSIBLE CAUSE • Erratic signal from CKP sensor
• Erratic or no signal from CMP sensor
• ECT sensor or related circuit malfunction
• Manifold absolute pressure (MAP) sensor or related circuit malfunction
• Accelerator position sensor or related circuit malfunction
• MAF sensor malfunction
• Incorrect or no load signal input
• Engine overheating
• Vacuum leakage

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–34
1871-1U-06B(01-03).fm 35 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Inspect for the following: Yes Go to the next step.
• Fuel quality (proper octane, contamination, No Service if necessary.
winter/summer blend) Repeat Step 1.
• Intake-air system restriction or leakage
• Electrical connectors connection
• Fuel leakage in fuel system
• Vacuum leakage
01-03
Are all items normal?
2 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
3 Access the ECT PID. Yes Go to the next step.
Verify that the ECT PID isless than 116°C No The cause of this concern could be from the cooling
{241°F} during driving. system overheating.
Is the ECT PID less than specified? Perform the symptom troubleshooting “NO.17
COOLING SYSTEM CONCERNS - OVERHEATING.”
(See01-03-60 NO.17 COOLING SYSTEM
CONCERNS-OVERHEATING[L3 WITH TC].)
4 Perform the A/C Cut-off Operation Inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Repair or replace the malfunctioning parts according to
OPERATION INSPECTION[L3 WITH TC].) inspection results.
Does the A/C Cut-off Operation work properly?
5 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does the EGR system operate properly?
6 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damaged/
(See01-03-78 ENGINE CONTROL SYSTEM scratching.) If normal, go to the next step.
OPERATION INSPECTION[L3 WITH TC].) No Inspect or replace the malfunctioning parts, according
Does the electronic throttle control system work the to inspection results.
properly?
7 Perform the Purge Control System Operation Yes Go to the next step.
inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the purge solenoid valve work properly?
8 Perform the Variable Valve Timing Control Yes Go to the next step.
System Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable valve timing control system
work properly?
9 Inspect CMP and CKP sensor for the following; Yes Repair or replace the malfunctioning part according to
• Installation condition the inspection results.
(See01-40-45 CAMSHAFT POSITION No Go to the next step.
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in the wiring harnesses.
Is there any malfunction detected?

01-03–35
1871-1U-06B(01-03).fm 36 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
10 Connect the M-MDS to the DLC-2. Yes Go to the next step.
Access and monitor following PIDs using the No Inspect and repair or replace suspected parts and the
data monitor function. related harnesses.
• ACSW If the malfunction remains, perform the intermittent
• APP concern troubleshooting procedure.
• ECT (See01-03-76 INTERMITTENT CONCERN
• MAF TROUBLESHOOTING[L3 WITH TC].)
• MAP
• PSP (PCM terminal 2T)
Do the PIDs indicate the correct values under
trouble condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
11 Inspect for restriction in the exhaust system and Yes Replace the malfunctioning part.
three-way catalytic converter (TWC). No Go to the next step.
Is there any restriction?
12 Remove and shake the PCV valve. Yes Go to the next step.
Does the PCV valve rattle? No Replace the PCV valve.
13 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Is a strong blue spark visible at each cylinder?
14 Access and monitor the FUEL_PRES PID. Yes Go to Step 18.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
15 Is the vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 17.
16 Inspect the fuel pressure sensor. Yes Go to Step 18.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
17 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 21.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
18 Connect the fuel pressure gauge between the Yes Go to the next step.
fuel pump and the high pressure fuel pump. No Inspect for the following:
Measure the fuel pressure line of the low • Fuel line restriction
pressure side. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If normal replace the fuel pump.
INSPECTION[L3 WITH TC].)
Is the fuel pressure within the specification?
19 Inspect fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are the fuel injectors normal? INSTALLATION[L3 WITH TC].)
20 Measure the compression pressure for each Yes Replace the injector driver module.
cylinder. If the problem remains, overhaul the engine.
(See01-10-9 COMPRESSION INSPECTION[L3 No Inspect for the following:
WITH TC].) • Damaged valve seat
Are compression pressures within the • Worn valve stem and valve guide
specification? • Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service if necessary.
21 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie
01-03–36
1871-1U-06B(01-03).fm 37 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.9 FAST IDLE/RUNS ON[L3 WITH TC]
id010339801500

9 FAST IDLE/RUNS ON
• Engine speed continues at fast idle after warm-up.
DESCRIPTION
• Engine runs after the ignition switch is turned off.
• ECT sensor or related circuit malfunction
• Suction control valve (built-in high pressure fuel pump)
• Fuel injector malfunction 01-03
• Air leakage from intake-air system
• Throttle body malfunction
• Accelerator pedal position sensor or related circuit malfunction
• Cruise control system operation improperly
• Improper load signal input
• Improper operation of electric throttle control system

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
POSSIBLE CAUSE • Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–37
1871-1U-06B(01-03).fm 38 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Connect the M-MDS to the DLC. Yes Go to the next step.
Access the ECT PID. No ECT PID is higher than 112 °C {234 °F}:
Start and warm-up engine to normal operating Go to symptom troubleshooting "NO.17 COOLING
temperature. SYSTEM CONCERNS - OVERHEATING".
Is ECT PID reading between82— 112 °C {180— ECT PID is less than 82 °C {180 °F}
234 °F}? Go to symptom troubleshooting "NO.18 COOLING
SYSTEM CONCERNS - RUNS COLD".
2 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
3 Inspect for leakage in intake-air system. Yes Repair or replace for leakage.
Is there any leakage found? No Go to the next step.
4 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damaged/
(See01-03-78 ENGINE CONTROL SYSTEM scratching.) If normal, go to the next step.
OPERATION INSPECTION[L3 WITH TC].) No Inspect or replace the malfunctioning parts, according
Does the electronic throttle control system work to the inspection results.
properly?
5 Connect the M-MDS to the DLC-2. Yes Go to the next step.
Access and monitor the following PIDs using the No Inspect and repair or replace suspected parts and the
data monitor function. related harnesses.
• ECT If the malfunction remains, perform the intermittent
• APP concern troubleshooting.
• ACSW (See01-03-76 INTERMITTENT CONCERN
• PSP (PCM terminal 2T) TROUBLESHOOTING[L3 WITH TC].)
Do the PIDs indicate the correct values under
trouble condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
6 Inspect the high pressure fuel pump. Yes Go to the next step.
(See01-14-19 HIGH PRESSURE FUEL PUMP No Replace the high pressure fuel pump.
INSPECTION[L3 WITH TC].)
Is the high pressure fuel pump normal?
7 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are fuel injectors normal? INSTALLATION[L3 WITH TC].)
8 Inspect the operation of cruise control system. Yes Inspect and repair or replace the injector driver module
Does the cruise control system work properly? or related circuit.
No Repair or replace the malfunctioning part according to
inspection results.
9 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–38
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.10 LOW IDLE/STALLS DURING DECELERATION[L3 WITH TC]
id010339801600

10 LOW IDLE/STALLS DURING DECELERATION

DESCRIPTION • Engine stops unexpectedly at beginning of deceleration or recovery from deceleration.
• Poor fuel quality
• Vacuum leakage
• Improper operation of electronic throttle control system
• Air leakage from intake-air system 01-03
• Intake-air system restriction
• EVAP control system malfunction
• Improper air/fuel mixture ratio control
• Erratic signal from CKP sensor
• Erratic signal from CMP sensor
• Accelerator position sensor or related circuit malfunction
• TP sensor or related circuit malfunction
• MAF sensor or related circuit malfunction
• Front and/or rear HO2S sensor or related circuit malfunction
• Brake switch or related circuit malfunction
• TR switch or related circuit malfunction
• Improper A/C magnetic clutch operation
• Inadequate fuel pressure (high or low pressure side)
• Suction control valve malfunction (built-in high pressure fuel pump)
• Relief valve malfunction (built-in delivery pipe)
• Fuel leakage
• Fuel line restriction
• Fuel filter clogging
• Incorrect fuel injection timing
• High pressure fuel pump malfunction
POSSIBLE CAUSE • Fuel injector malfunction
• Low engine compression
• Improper valve timing
• EGR system malfunction
• Vacuum leakage
• ECT sensor or related circuit malfunction
• Fuel pressure sensor or related circuit malfunction

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Does the engine idle rough? Yes Go to symptom troubleshooting “NO.8 ENGINE RUNS
ROUGH/ROLLING IDLE”.
(See01-03-34 NO.8 ENGINE RUNS ROUGH/
ROLLING IDLE[L3 WITH TC].)
No Go to the next step.
2 Verify the following: Yes Go to the next step.
• Fuel quality (proper octane, contamination, No Service if necessary. Repeat Step 2.
winter/summer blend)
• Intake-air system restriction or leakage
• Fuel leakage in fuel system
• Vacuum leakage
Are all items normal?

01-03–39
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
3 Inspect CMP and CKP sensor for the following; Yes Repair or replace the malfunctioning part according
• Installation condition inspection results.
(See01-40-45 CAMSHAFT POSITION No Go to the next step.
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in the wiring harnesses
Is there any malfunction detected?
4 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
5 Connect the M-MDS to the DLC-2. Yes Go to the next step.
Access and monitor the following PIDs using the No Inspect and repair or replace suspected parts and the
data monitor function. related harnesses.
• ACSW If the malfunction remains, perform the intermittent
• APP concern troubleshooting procedure.
• BOO (See01-03-76 INTERMITTENT CONCERN
• ECT TROUBLESHOOTING[L3 WITH TC].)
• MAF
• TP
• O2S11
• O2S12
• LONGFT1
• SHTFT1
• PSP (PCM terminal 2T)
Do the PIDs indicate the correct values under
trouble condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
6 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does the EGR system operate properly?
7 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damaged/
(See01-03-78 ENGINE CONTROL SYSTEM scratching.) If normal, go to the next step.
OPERATION INSPECTION[L3 WITH TC].) No Inspect or replace the malfunctioning parts, according
Does the electronic throttle control system work to the inspection results.
properly?
8 Perform the Purge Control System Operation Yes Go to the next step.
inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the purge solenoid valve work properly?
9 Perform the A/C Cut-off Operation Inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Repair or replace the malfunctioning parts according to
OPERATION INSPECTION[L3 WITH TC].) inspection results.
Does the A/C Cut-off Operation work properly?
10 Inspect adjustment of TR switch. Yes Go to the next step.
(See05-17-11 TRANSAXLE RANGE (TR) No Perform N position leaning.
SWITCH INSPECTION[AW6A-EL, AW6AX-EL].) (See .)
Is TR switch adjusted properly? If problem remains replace TR switch.
(See05-17-25 TCM REMOVAL/INSTALLATION[AW6A-
EL, AW6AX-EL].)
11 Access and monitor the FUEL_PRES PID. Yes Go to Step 15.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
12 Is the vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 15.

01-03–40
1871-1U-06B(01-03).fm 41 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
13 Inspect the fuel pressure sensor. Yes Go to Step 15.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
14 Replace the high pressure fuel pump Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to the Step 18.
Is the FUEL_PRES PID value within the No Go to the next step. 01-03
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
15 Connect the fuel pressure gauge between the Yes Go to the next step.
fuel pump and the high pressure fuel pump. No Inspect for the following:
Measure the fuel pressure line of the low • Fuel line restriction
pressure side. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If normal replace the fuel pump.
INSPECTION[L3 WITH TC].)
Is the fuel pressure within the specification?
16 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are fuel injectors normal? INSTALLATION[L3 WITH TC].)
17 Measure the compression pressure for each Yes Replace the injector driver module.
cylinder. If the problem remains, overhaul the engine.
(See01-10-9 COMPRESSION INSPECTION[L3 No Inspect for the following:
WITH TC].) • Damaged valve seat
Are compression pressures within the • Worn valve stem and valve guide
specification? • Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service if necessary.
18 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie
NO.11 ENGINE STALLS/QUITS, ENGINE RUNS ROUGH, MISSES, BUCK/JERK, HESITATION/STUMBLE,
SURGES[L3 WITH TC]
id010339801700

ENGINE STALLS/QUITS (ACCELERATION/CRUISE)

ENGINE RUNS ROUGH (ACCELERATION/CRUISE)
11 BUCK/JERK (ACCELERATION/CRUISE/DECELERATION)
HESITATION/STUMBLE (ACCELERATION)
SURGES (ACCELERATION/CRUISE)
• Engine stops unexpectedly at beginning of acceleration or during cruise.
• Engine stops unexpectedly while cruising.
• Engine speed fluctuates during acceleration or cruising.
DESCRIPTION • Engine misses during acceleration or cruising.
• Vehicle bucks/jerks during acceleration, during or deceleration.
• Momentary pause at beginning of acceleration or during acceleration
• Momentary minor irregularity in engine output

01-03–41
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

ENGINE STALLS/QUITS (ACCELERATION/CRUISE)
ENGINE RUNS ROUGH (ACCELERATION/CRUISE)
11 BUCK/JERK (ACCELERATION/CRUISE/DECELERATION)
HESITATION/STUMBLE (ACCELERATION)
SURGES (ACCELERATION/CRUISE)
• A/C system improper operation
• Air leakage from intake-air system
• Intake-air system restriction
• Purge solenoid valve malfunction
• Improper operation of electronic throttle control system
• EGR system malfunction
• Low engine compression
• Turbocharger malfunction
• Improper operation of wastegate control system
• Vacuum leakage
• Poor fuel quality
• Main relay intermittent malfunction
• Throttle body malfunction
• Engine overheating
• Spark plug malfunction
• Variable swirl system malfunction
• Air cleaner restriction
• PCV valve malfunction
• Improper valve timing due to jumping out timing chain
• Exhaust system and/or three-way catalytic converter restriction
• Intermittent open or short circuit in fuel pump circuit
• Incorrect fuel injection timing
• Inadequate fuel pressure (high or low pressure side)
• Fuel pressure sensor or related circuit malfunction
• Suction control valve malfunction (built-in high pressure fuel pump)
• Relief valve malfunction (built-in delivery pipe)
• High pressure fuel pump malfunction
• Fuel injector malfunction
• Improper fuel pump speed control operation
• Fuel pump mechanical malfunction
• Fuel line restriction or clogging
POSSIBLE CAUSE • Improper air/fuel mixture ratio control operation
• Erratic or no signal from CMP sensor
• Erratic signal from CKP sensor
• Front and/or rear HO2S sensor or related circuit malfunction
• Accelerator position sensor or related circuit malfunction
• MAF sensor or related circuit malfunction
• Neutral switch or related circuit malfunction
• ECT sensor or related circuit malfunction
• Manifold absolute pressure (MAP) sensor or related circuit malfunction
• IAT sensor No.1 or related circuit malfunction
• IAT sensor No.2 or related circuit malfunction
• Intermittent open or short circuit MAF sensor, accelerator position sensor, TP sensor and VSS
• ATX malfunction

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–42
1871-1U-06B(01-03).fm 43 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Inspect for the following: Yes Go to the next step.
• Fuel quality (proper octane, contamination, No Service if necessary.
winter/summer blend) Repeat Step 1.
• Air leakage from intake-air system
• Intake-air system restriction
• Air cleaner element
• Clutch slippage
01-03
• Fuel leakage from fuel line
• Vacuum leakage
Are all items normal?
2 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
3 Access the ECT PID. Yes Go to the next step.
Verify that the ECT PID isless than 116°C No The cause of this concern could be from the cooling
{241°F} during driving. system overheating.
Is the ECT PID less than specified? Perform the symptom troubleshooting “NO.17
COOLING SYSTEM CONCERNS - OVERHEATING.”
(See01-03-60 NO.17 COOLING SYSTEM
CONCERNS-OVERHEATING[L3 WITH TC].)
4 Perform the Main Relay Operation Inspection Yes Go to the next step.
with wiggle the related harness. No Repair or replace for the intermittent fault.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
Does the main relay operate properly?
5 Inspect CMP and CKP sensor for the following; Yes Repair or replace the malfunctioning part according to
• Installation condition the inspection results.
(See01-40-45 CAMSHAFT POSITION No Go to the next step.
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in the wiring harnesses
Is there any malfunction detected?
6 Connect the M-MDS to DLC-2. Yes Go to the Step 13.
Access and monitor following PIDs using the No Inspect and repair or replace suspected parts and
data monitor function while wiggle the harness related harnesses.
and under trouble condition. If the malfunction remains, perform the intermittent
• APP concern troubleshooting.
• ECT (See01-03-76 INTERMITTENT CONCERN
• MAF TROUBLESHOOTING[L3 WITH TC].)
• IAT If the MAP PID remains without specified, go to the
• IAT2 next step.
• MAP
• FP
• VSS
• O2S11
• O2S12
• LONGFT1
• SHTFT1
Do the PIDs indicate correct values?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
7 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does EGR system operate properly?
8 Perform the A/C Cut-off Operation Inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Repair or replace malfunctioning parts, according to
OPERATION INSPECTION[L3 WITH TC].) inspection results.
Does the A/C Cut-off Operation work properly?

01-03–43
1871-1U-06B(01-03).fm 44 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
9 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damaged/
(See01-03-78 ENGINE CONTROL SYSTEM scratching.) If normal, go to the next step.
OPERATION INSPECTION[L3 WITH TC].) No Inspect or replace the malfunctioning parts, according
Does the electronic throttle control system work to the inspection results.
properly?
10 Perform the Variable Swirl Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable swirl system work properly?
11 Perform the Purge Control System Operation Yes Go to the next step.
Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the purge control system work properly?
12 Perform the Fuel Pump Speed Control Yes Go to the next step.
Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the fuel pump speed control work
properly?
13 Perform the Wastegate Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the wastegate control system work
properly?
14 Remove the parts necessary to inspect Yes Replace the turbocharger.
turbocharger without removing the turbocharger. No Go to the next step.
Inspect if turbocharger compressor wheel is
bent, damaged, or interfering with housing on
vehicle.
(See01-13-17 TURBOCHARGER
INSPECTION[L3 WITH TC].)
Is there any problem?
15 Inspect the turbocharger compressor wheel Yes Replace the turbocharger.
locknut is loose or has fallen down inside No Go to the next step.
turbocharger.
Is there any problem?
16 Inspect turbocharger compressor wheel by Yes Go to the next step.
hand. No Replace the turbocharger.
Does the wheel turn easily and smoothly?
17 Inspect the turbocharger turbine wheel is Yes Replace the turbocharger.
damaged, cracked or interfering with housing on No Go to the next step.
vehicle.

Note
• Inspect all fins on each turbine wheel.

Is there any problem?

18 Is any engine oil found inside turbocharger Yes Excessive amount of oil is found:
turbine housing? Replace the turbocharger.
Small amount of oil is found:
Wipe oil out of vehicle, then go to the next step.
No Go to the next step.
19 Is any engine oil found inside turbocharger Yes Wipe oil out vehicle and install all removed parts in
compressor housing? Step 14. Then, go to the next step.
No Turbocharger is normal.
Install all parts removed in Step 14.
Then, go to the next step.
20 Inspect for restriction in the exhaust system and Yes Replace the malfunctioning part.
three-way catalytic converter (TWC). No Go to the next step.
Is there any restriction?
21 Remove and shake the PCV valve. Yes Go to the next step.
Does the PCV valve rattle? No Replace the PCV valve.

01-03–44
1871-1U-06B(01-03).fm 45 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
22 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Is a strong blue spark visible at each cylinder?
23 Access and monitor the FUEL_PRES PID. Yes Go to Step 27.
Is the FUEL_PRES PID value within the No Go to the next step.
specification? 01-03
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
24 Is the vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step.26.
25 Inspect the fuel pressure sensor. Yes Go to the Step 27.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
26 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 30.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
27 Connect the fuel pressure gauge between the Yes Go to the next step.
fuel pump and the high pressure fuel pump. No Inspect for the following:
Measure the fuel pressure line of the low • Fuel line restriction
pressure side. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If normal replace the fuel pump.
INSPECTION[L3 WITH TC].)
Is the fuel pressure with in the specification?
28 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are fuel injectors normal? INSTALLATION[L3 WITH TC].)
29 Measure the compression pressure for each Yes Replace the injector driver module.
cylinder. If the problem remains, overhaul the engine.
(See01-10-9 COMPRESSION INSPECTION[L3 No Inspect for the following:
WITH TC].) • Damaged valve seat
Are compression pressures within the • Worn valve stem and valve guide
specification? • Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service if necessary.
30 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–45
1871-1U-06B(01-03).fm 46 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.12 LACK/LOSS OF POWER (ACCELERATION/CRUISE)[L3 WITH TC]
id010339801800

12 LACK/LOSS OF POWER (ACCELERATION/CRUISE)

DESCRIPTION Performance is poor under load (e.g., powers down when climbing hills).
• Improper A/C system operation
• Improper operation of A/C cut-off control
• Air leakage or restriction from intake-air system
• Loose turbocharger compressor-to-intake manifold duct connecting
• Turbocharger rotating assembly binding or dragging
• Wastegate valve malfunction (stuck open)
• Turbocharger malfunction
• Charge air cooler malfunction
• Variable swirl system malfunction
• Improper operation of electronic throttle control system
• Purge solenoid valve malfunction
• EGR system malfunction
• Brake dragging
• Low engine compression
• Poor fuel quality
• Vacuum leakage
• Incorrect signal to ignition coil
• Spark plug malfunction
• Engine overheating
• Throttle body malfunction
• Air cleaner restriction or dirty
• PCV valve malfunction
• Improper valve timing due to jumping out of timing chain
• Improper operation of variable valve timing control system
• Restriction in exhaust system or three-way catalytic converter (TWC)
• Leakage at exhaust manifold or turbocharger mounting flange
• Intermittent open or short fuel pump related circuit
• Inadequate fuel pressure (high-or low pressure side)
• Fuel pressure sensor or related circuit malfunction
• Suction control valve or related circuit malfunction (built-in high pressure fuel pump)
• Relief valve malfunction (built-in delivery pipe)
• High pressure fuel pump malfunction
POSSIBLE CAUSE • Improper fuel pump speed control operation
• Fuel pump mechanical malfunction
• Fuel line restriction or clogging
• Fuel injector malfunction
• Incorrect fuel injection timing
• Erratic signal from CKP sensor
• Erratic or no signal from CMP sensor
• ECT sensor or related circuit malfunction
• Manifold absolute pressure (MAP) sensor or related circuit malfunction
• Accelerator position sensor or related circuit malfunction
• MAF/IAT sensor or related circuit malfunction
• IAT sensor No.2 or related circuit malfunction
• Intermittent open or short circuit MAF sensor, accelerator position sensor, TP sensor and VSS
• ATX malfunction

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–46
1871-1U-06B(01-03).fm 47 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Verify the following: Yes Go to the next step.
• Fuel quality (proper octane, contamination, No Service if necessary.
winter/summer blend) Repeat Step 1.
• Air cleaner restriction or dirty
• Intake-air system restriction or leakage
• Charge air cooler condition (restriction or
damaged)
01-03
• Turbocharger compressor-to-intake manifold
duct loose connection
• Leakage at exhaust manifold or turbocharger
mounting flange
• Vacuum leakage
• Clutch slippage
• Brake dragging
Are all items normal?
2 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
3 Is the engine overheating? Yes Go to symptom troubleshooting “NO.17 COOLING
SYSTEM CONCERN-OVERHEATING.”
(See01-03-60 NO.17 COOLING SYSTEM
CONCERNS-OVERHEATING[L3 WITH TC].)
No Go to the next step.
4 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does the EGR system operate properly?
5 Perform the A/C Cut-off Operation Inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Repair or replace malfunctioning parts, according to
OPERATION INSPECTION[L3 WITH TC].) the inspection results.
Does the A/C Cut-off Operation work properly?
6 Perform the TP sweep inspection. Yes Visually inspect throttle body (damaged/scratching.) If
(See01-03-78 ENGINE CONTROL SYSTEM normal, go to the next step.
OPERATION INSPECTION[L3 WITH TC].) No Inspect or replace the malfunctioning parts, according
Does the variable swirl system work properly? to the inspection results.
7 Perform the Variable Swirl Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
8 Perform the Variable Valve Timing Control Yes Go to the next step.
System Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable valve timing control system
work properly?
9 Perform the Purge Control System Operation Yes Go to the next step.
Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the purge control system work properly?
10 Perform Fuel Pump Speed Control Inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does the fuel pump speed control work
properly?
11 Perform the Wastegate Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the wastegate control system work
properly?

01-03–47
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
12 Connect the M-MDS to DLC-2. Yes Go to the next step.
Access and monitor following PIDs using the No Inspect and repair or replace suspected parts and
data monitor function. related harnesses.
• ECT If the malfunction remains, perform the intermittent
• MAF concern troubleshooting procedure.
• IAT (See01-03-76 INTERMITTENT CONCERN
• IAT2 TROUBLESHOOTING[L3 WITH TC].)
• APP
• TP
• MAP
• FP (Low side pressure line)
• VSS
Do the PIDs indicate correct values under
trouble condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
13 Inspect CMP and CKP sensor for following; Yes Repair or replace the malfunctioning part according to
• Installation condition the inspection results.
(See01-40-45 CAMSHAFT POSITION No Go to the next step.
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in wiring harnesses Is
there any malfunction detected?
14 Remove and shake PCV valve. Yes Go to the next step.
Does the PCV valve rattle? No Replace the PCV valve.
15 Inspect spark plug condition. Yes Spark plug is wet or covered with carbon:
Is spark plug wet, covered with carbon or grayish Perform the Spark Test and repair or replace
white? malfunctioning part according to inspection result.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
Spark plug is grayish white:
Go to Step 23.
No Install spark plugs on original cylinders.
Go to the next step.
16 Inspect for restriction in exhaust system and Yes Replace malfunctioning part.
three-way catalytic converter (TWC). No Go to the next step.
Is there any restriction?
17 Remove parts necessary to inspect Yes Replace turbocharger.
turbocharger without removing the turbocharger. No Go to the next step.
Inspect if turbocharger compressor wheel is
bent, damaged, or interfering with housing on
vehicle.
(See01-13-17 TURBOCHARGER
INSPECTION[L3 WITH TC].)
Is there any problem?
18 Inspect turbocharger compressor wheel locknut Yes Replace turbocharger.
is loose or has fallen down inside turbocharger. No Go to the next step.
Is there any problem?
19 Inspect turbocharger compressor wheel by Yes Go to the next step.
hand. No Replace turbocharger.
Does wheel turn easily and smoothly?
20 Inspect turbocharger turbine wheel is damaged, Yes Replace turbocharger.
cracked or interfering with housing on vehicle. No Go to the next step.
Note
• Inspect all fins on each turbine wheel.

Is there any problem?

21 Is any engine oil found inside turbocharger Yes Excessive amount of oil is found:
turbine housing? Replace turbocharger.
Small amount of oil is found:
Wipe oil out of vehicle, then Go to the next step.
No Go to the next step.

01-03–48
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
22 Is any engine oil found inside turbocharger Yes Wipe oil out vehicle and install all removed parts in
compressor housing? Step 16. Then, Go to the next step.
No Turbocharger is normal.
Install all parts removed in Step 17.
Then, Go to the next step.
23 Inspect for leakage in fuel line. Yes Repair or replace suspected part.
Is there any fuel leakage found? No Go to the next step. 01-03
24 Access and monitor FUEL_PRES PID. Yes Go to Step 27.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
25 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 30.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
26 Inspect the fuel pressure sensor. Yes Go to the next step.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
27 Connect the fuel pressure gauge between fuel Yes Go to the next step.
pump and high pressure fuel pump. No Inspect for the following:
Measure the fuel pressure line of the low • Fuel line restriction
pressure side. • Fuel filter clogging
(See01-14-5 FUEL LINE PRESSURE If normal replace the fuel pump.
INSPECTION[L3 WITH TC].)
Is the fuel pressure within the specification?
28 Inspect fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are fuel injectors normal? INSTALLATION[L3 WITH TC].)
29 Measure compression pressure for each Yes Replace the injector driver module.
cylinder. If the problem remains, overhaul the engine.
(See01-10-9 COMPRESSION INSPECTION[L3 No Inspect for the following:
WITH TC].) • Damaged valve seat
Are compression pressures within the • Worn valve stem and valve guide
specification? • Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service if necessary.
30 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–49
1871-1U-06B(01-03).fm 50 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.13 KNOCKING/PINGING[L3 WITH TC]
id010339801900

13 KNOCKING/PINGING
Sound is produced when air/fuel mixture is ignited by something other than a spark plug (e.g., hot spot in
DESCRIPTION
the combustion chamber).
• Poor fuel quality
• Engine overheating due to cooling system malfunction
• Variable swirl valve stuck closed
• Improper operation of electronic throttle system
• Air leakage or restriction from intake-air system
• ECT sensor or related circuit malfunction
• MAF sensor or related circuit malfunction
• IAT sensor No.1 or related circuit malfunction
• IAT sensor No.2 or related circuit malfunction
• Incorrect fuel injection timing or amount
• Fuel injector malfunction
• Knock sensor or related circuit malfunction
• Ignition system malfunction
• Erratic signal from CMP sensor
• Inadequate engine compression
• Inadequate fuel pressure (high-pressure side)
• Manifold absolute pressure (MAP) sensor or related malfunction
• Wastegate valve malfunction (stuck closed)
• Charge air cooler malfunction
• Fuel pressure sensor or related circuit malfunction
• Accelerator position sensor or related circuit malfunction
POSSIBLE CAUSE • Suction control valve malfunction (built-in high pressure fuel pump)
• Exhaust system and/or three-way catalytic converter (TWC) restriction
• EGR system malfunction

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–50
1871-1U-06B(01-03).fm 51 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Connect the M-MDS to the DLC-2. Yes Go to the next step.
Access the ECT PID. No The cause of this concern could be from the cooling
Verify that the ECT PID is less than 116°C system overheating.
{241°F} during driving. Perform the symptom troubleshooting “NO.17
Is ECT PID less than specified? COOLING SYSTEM CONCERNS - OVERHEATING.”
(See01-03-60 NO.17 COOLING SYSTEM 01-03
CONCERNS-OVERHEATING[L3 WITH TC].)
2 Inspect for the following: Yes Go to the next step.
• Air leakage or restriction from intake-air No Service if necessary.
system Repeat Step 2.
• Fuel quality (proper octane, contamination,
winter/summer blend)
• Exhaust system and/or three-way catalytic
converter (TWC) restriction
• Charge air cooler condition (restriction or
damaged)
Are all items normal?
3 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
4 Inspect the knock sensor. Yes Go to the next step.
(See01-40-47 KNOCK SENSOR (KS) No Replace the knock sensor.
INSPECTION[L3 WITH TC].) (See01-40-47 KNOCK SENSOR (KS) REMOVAL/
Is the knock sensor normal? INSTALLATION[L3 WITH TC]
5 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does the EGR system operate properly?
6 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damaged/
(See01-03-78 ENGINE CONTROL SYSTEM scratching.) If normal, go to the next step.
OPERATION INSPECTION[L3 WITH TC].) No Inspect or replace the malfunctioning parts, according
Does the electronic throttle control system work to the inspection results.
properly?
7 Perform the Variable Swirl Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable swirl system work properly?
8 Perform the Wastegate Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable swirl system work properly?
9 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Is a strong blue spark visible at each cylinder?
10 Inspect CMP and CKP sensor for the following; Yes Repair or replace the malfunctioning part according to
• Installation condition the inspection results.
(See01-40-45 CAMSHAFT POSITION No Go to the next step.
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in the wiring harnesses
Is there any malfunction detected?

01-03–51
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
11 Connect the M-MDS to the DLC-2. Yes Go to the next step.
Access and monitor the following PIDs using the No Inspect and repair or replace suspected parts and the
data monitor function. related harnesses.
• ECT If the malfunction remains, perform the intermittent
• MAF concern troubleshooting procedure.
• IAT (See01-03-76 INTERMITTENT CONCERN
• IAT2 TROUBLESHOOTING[L3 WITH TC].)
• APP
• TP
• MAP
Do the PIDs indicate correct values under
trouble condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
12 Access and monitor FUEL_PRES PID. Yes Go to Step 16.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
13 Is the vehicle accelerate performance normally? Yes Go to the next step.
No Go to the Step 15.
14 Inspect the fuel pressure sensor. Yes Go to Step 16.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
15 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 17.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
16 Measure compression pressure for each Yes Inspect fuel injector for each cylinder.
cylinder. (See01-14-27 FUEL INJECTOR INSPECTION[L3
(See01-10-9 COMPRESSION INSPECTION[L3 WITH TC].)
WITH TC].) No Inspect following:
Are compression pressure within the specified? • Damaged valve seat
• Worn valve stem and valve guide
• Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service as necessary.
17 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–52
1871-1U-06B(01-03).fm 53 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.14 POOR FUEL ECONOMY[L3 WITH TC]
id010339802000

14 POOR FUEL ECONOMY

DESCRIPTION Fuel economy is unsatisfactory.
• Contaminated air cleaner element
• Engine cooling system malfunction
• Improper ATF level
• Weak spark 01-03
• Spark plug malfunction
• Poor fuel quality
• Erratic signal from CKP sensor
• Erratic or no signal from CMP sensor
• Fuel pressure sensor or related circuit malfunction
• ECT sensor or related circuit malfunction
• Manifold absolute pressure (MAP) sensor or related circuit malfunction
• Accelerator position sensor or related circuit malfunction
• MAF sensor or related circuit malfunction
• Contaminated MAF sensor
• IAT sensor No.1 or related circuit malfunction
• IAT sensor No.2 or related circuit malfunction
• VSS or related circuit malfunction
• Variable swirl system malfunction
• Improper coolant level
• Inadequate fuel pressure (high-pressure side)
• Injection timing is incorrect
• Fuel injector or related circuit malfunction
• High pressure fuel pump malfunction
• Fuel leakage
• Fuel line restriction
• Fuel filter clogging
• PCV valve malfunction
POSSIBLE CAUSE • Brake dragging
• A/C system improper operation
• Improper valve timing due to jumping out of timing chain
• Improper engine compression
• Turbocharger malfunction
• Charge air cooler malfunction
• Exhaust system and/or three-way catalytic converter clogging
• EGR system malfunction
• Vacuum leakage

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–53
1871-1U-06B(01-03).fm 54 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Inspect for the following: Yes Go to the next step.
• Air cleaner element for contamination No Service if necessary.
• Intake-air system restriction Repeat Step 1.
• Fuel quality (proper octane, contamination,
winter/summer blend)
• Coolant level
• ATF level
• Brake dragging
• Charge air cooler condition (restriction or
damaged)
• Vacuum leakage
• Fuel leakage
• MAF sensor contaminated
• Exhaust system and/or three-way catalytic
converter restriction
Are all items normal?
2 Perform the self-test function using the M-MDS. Yes DTC is displayed:
Turn the ignition switch to the ON position. Go to the appropriate DTC test.
Retrieve any DTCs. (See01-02-13 DTC TABLE[L3 WITH TC].)
Is a DTC displayed? No No DTC is displayed:
Go to the next step.
3 Perform the Cooling Fan Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the EGR system operate properly?
4 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does the EGR system operate properly?
5 Perform the Variable Swirl Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable swirl system work properly?
6 Perform the Wastegate Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable swirl system work properly?
7 Perform the A/C Cut-off Operation Inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Repair or replace malfunctioning parts, according to
OPERATION INSPECTION[L3 WITH TC].) the inspection results.
Does the A/C Cut-off Operation work properly?
8 Remove and shake the PCV valve. Yes Go to the next step.
Does the PCV valve rattle? No Replace the PCV valve.
9 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Is the strong blue spark visible at each cylinder?
10 Inspect CMP and CKP sensor for the following; Yes Repair or replace the malfunctioning part according to
• Installation condition the inspection results.
(See01-40-45 CAMSHAFT POSITION No Go to the next step.
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in the wiring harnesses
Is there any malfunction detected?

01-03–54
1871-1U-06B(01-03).fm 55 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
11 Connect the M-MDS to the DLC-2. Yes Go to the next step.
Access and monitor following PIDs using the No Inspect and repair or replace suspected parts and the
data monitor function. related harnesses.
• ECT If the malfunction remains, perform the intermittent
• MAF concern troubleshooting procedure.
• IAT (See01-03-76 INTERMITTENT CONCERN
• IAT2 TROUBLESHOOTING[L3 WITH TC].)
• APP
01-03
• TP
• MAP
• VSS
Do the PIDs indicate the correct values
according to the engine operating condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
12 Access and monitor the FUEL_PRES PID. Yes Go to Step 16.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
13 Is the vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 15.
14 Inspect the fuel pressure sensor. Yes Go to Step 16.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
15 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 19.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
16 Inspect the turbocharger. Yes Replace the turbocharger.
(See01-13-17 TURBOCHARGER No Go to the next step.
INSPECTION[L3 WITH TC].)
Is there any problem in turbocharger?
17 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are fuel injectors normal? INSTALLATION[L3 WITH TC].)
18 Measure the compression pressure for each Yes Replace the injector driver module.
cylinder. If the problem remains, overhaul the engine.
(See01-10-9 COMPRESSION INSPECTION[L3 No Inspect for the following:
WITH TC].) • Damaged valve seat
Are compression pressures within the • Worn valve stem and valve guide
specification? • Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service if necessary.
19 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–55
1871-1U-06B(01-03).fm 56 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.15 EMISSION COMPLIANCE[L3 WITH TC]
id010339802100

15 EMISSION COMPLIANCE
DESCRIPTION Fails emissions test.
• Poor fuel quality
• Vacuum lines leakage or blockage
• Cooling system malfunction
• Engine overheating
• Spark plug malfunction
• Air leakage from intake-air system
• Variable swirl system malfunction
• Wastegate control system improper operation
• Turbocharger malfunction
• Charge air cooler malfunction
• Inadequate fuel pressure (high-pressure side)
• PCV valve malfunction or incorrect valve installation
• EGR system malfunction
• Exhaust system and/or three-way catalytic converter restriction
• Fuel tank ventilation system malfunction
• Charcoal canister damage
• Air cleaner element clogging or restriction
• Throttle body malfunction
• Improper operation of electronic throttle control system
• Relief valve malfunction (built-in delivery pipe)
• Suction control valve malfunction (built-in high pressure fuel pump)
• Improper air/fuel mixture ratio control operation
• Erratic or no signal from CMP sensor
• Erratic signal from CKP sensor
• Front or rear HO2S or related circuit malfunction
• ECT or related circuit malfunction
• MAF sensor or related circuit malfunction
• IAT sensor No.1 or related circuit malfunction
• IAT sensor No.2 or related circuit malfunction
• Fuel pressure sensor or related circuit malfunction
POSSIBLE CAUSE • Accelerator position sensor or related circuit malfunction
• TP sensor or related circuit malfunction
• Manifold absolute pressure (MAP) sensor or related circuit malfunction
• VSS or related circuit malfunction
• Fuel line restriction
• High pressure fuel pump malfunction
• Fuel injector or related circuit malfunction
• Incorrect fuel injection timing
• Three-way catalytic converter (TWC) malfunction
• Engine internal parts malfunction
• Excessive carbon is built-up in combustion chamber
• Improper engine compression
• Improper valve timing

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

01-03–56
1871-1U-06B(01-03).fm 57 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Is the engine overheating? Yes Go to symptom troubleshooting “NO.17 COOLING
SYSTEM CONCERNS - OVERHEATING.”
No Go to the next step.
2 Is the engine runs cold? Yes Go to symptom troubleshooting “NO.18 COOLING
SYSTEM CONCERNS - RUNS COLD.”
No Go to the next step. 01-03
3 Connect the M-MDS to the DLC. Yes DTC is displayed:
Perform the self-test function using the M-MDS. Go to appropriate DTC test.
Turn the ignition switch to the ON position. No No DTC is displayed:
Retrieve any DTCs. Go to the next step.
Is a DTC displayed?
4 Inspect for the following. Yes Go to the next step.
• Fuel quality (proper octane, contamination, No Service if necessary.
winter/summer blend) Repeat Step 4.
• Charge air cooler condition (restriction or
damaged)
• Air cleaner element (clogging or restriction)
• Intake-air system leakage
• PCV valve installation
• Vacuum line leakage or blockage
• Fuel leakage at fuel system
• Charcoal canister damaged
• Exhaust system and/or three-way catalytic
converter restriction
Are all items normal?
5 Perform the EGR system operation inspection. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Does the EGR system operate properly?
6 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damaged/
(See01-03-78 ENGINE CONTROL SYSTEM scratching.) If normal, go to the next step.
OPERATION INSPECTION[L3 WITH TC].) No Inspect or replace the malfunctioning parts, according
Does the electronic throttle control system work to the inspection results.
properly?
7 Perform the Variable Swirl Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable swirl system work properly?
8 Perform the Wastegate Control System Yes Go to the next step.
Operation Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable swirl system work properly?
9 Perform the Evaporative Emission (EVAP) Yes Go to the next step.
System Leak Inspection. No Inspect or replace the malfunctioning parts, according
(See01-03-78 ENGINE CONTROL SYSTEM to the inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the variable swirl system work properly?
10 Remove and shake the PCV valve. Yes Go to the next step.
Does the PCV valve rattle? No Replace the PCV valve.
11 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Is a strong blue spark visible at each cylinder?

01-03–57
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
12 Inspect CMP and CKP sensor for the following; Yes Repair or replace the malfunctioning part according to
• Installation condition the inspection results.
(See01-40-45 CAMSHAFT POSITION No Go to the next step.
(CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-42 CRANKSHAFT POSITION
(CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damaged trigger wheel and camshaft
• Open or short circuit in the wiring harnesses
Is there any malfunction detected?
13 Connect the M-MDS to the DLC-2. Yes Go to the next step.
Access and monitor the following PIDs using the No Inspect and repair or replace suspected parts and the
data monitor function. related harnesses.
• ECT If the malfunction remains, perform the intermittent
• MAF concern troubleshooting procedure.
• IAT (See01-03-76 INTERMITTENT CONCERN
• IAT2 TROUBLESHOOTING[L3 WITH TC].)
• APP
• TP
• MAP
• VSS
• O2S11
• O2S12
• LONGFT1
• SHTFT1
Do the PIDs indicate the correct values
according to the engine operating condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
14 Access and monitor the FUEL_PRES PID. Yes Go to Step 18.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
15 Is the vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 17.
16 Inspect the fuel pressure sensor. Yes Go to Step 18.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
17 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 22.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
18 Inspect the turbocharger. Yes Replace the turbocharger.
(See01-13-17 TURBOCHARGER No Go to the next step.
INSPECTION[L3 WITH TC].)
Is there any problem in turbocharger?
19 Inspect the three-way catalytic converter (TWC). Yes Go to the next step.
Is the TWC normal? No Replace the TWC.
20 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the suspected fuel injector.
INSPECTION[L3 WITH TC].) (See01-14-23 FUEL INJECTOR REMOVAL/
Are fuel injectors normal? INSTALLATION[L3 WITH TC].)
21 Measure the compression pressure for each Yes Replace the injector driver module.
cylinder. If the problem remains, overhaul the engine.
(See01-10-9 COMPRESSION INSPECTION[L3 No Inspect for the following:
WITH TC].) • Damaged valve seat
Are compression pressures within the • Worn valve stem and valve guide
specification? • Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service if necessary.

01-03–58
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
22 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.
01-03
End Of Sie
NO.16 HIGH OIL CONSUMPTION/LEAKAGE[L3 WITH TC]
id010339802200

16 HIGH OIL CONSUMPTION/LEAKAGE

DESCRIPTION Oil consumption is excessive.
• PCV valve malfunction
• Improper dipstick
• Improper engine oil viscosity
POSSIBLE CAUSE
• Engine internal parts malfunction
• Seal leakage at the compressor or turbine end of turbocharger (indicated by oil in housing on wheel)
• Oil leakage

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Remove and shake the PCV valve. Yes Go to the next step.
Does the PCV valve rattle? No Replace the PCV valve.
2 Verify the following: Yes Go to the next step.
• Proper dipstick No Service if necessary.
• Proper engine oil viscosity Repeat Step 2.
• Engine oil level
Are all items normal?
3 Inspect the oil leakage from outside of the Yes Repair or replace oil leakage part.
engine. No Go to the next step.
Is there any oil leakage found?
4 Remove the parts to necessary to inspect Yes Excessive amount of oil is found:
turbocharger without removing the turbocharger. Replace the turbocharger.
Visually inspect for the oil leakage inside Small amount of oil is found:
turbocharger compressor and turbine housing. Wipe oil out of vehicle, then go to the next step.
Is any engine oil found inside turbocharger No Go to the next step.
compressor or turbine housing?
5 Is any engine oil found around oil pipes attached Yes If oil leaks from damaged pipe, replace oil pipe.
on turbocharger center housing? Install the removed parts at Step 4.
No Inspect internal engine parts such as valves, valve
guides, valve stem seals, cylinder head drain passage,
and piston rings.
Then install the removed parts at Step 4.
6 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–59
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.17 COOLING SYSTEM CONCERNS-OVERHEATING[L3 WITH TC]
id010339802300

17 COOLING SYSTEM CONCERNS -OVERHEATING

DESCRIPTION Engine runs at higher than normal temperature/overheats.
• Improper coolant level
• Blown fuse
• Coolant leakage (engine internal, turbocharger, external)
• Excessive A/C system pressure
• A/C system operation is improper
• Improper water/anti-freeze mixture
• Fans reverse rotation
• Poor radiator condition
POSSIBLE CAUSE
• Thermostat malfunction
• Radiator hose damage
• Cooling fan inoperative
• Condenser fan inoperative
• Improper or damaged radiator cap
• Coolant overflow system malfunction
• Improper drive belt tension
• Drive belt damage

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Inspect for the following: Yes Go to the next step.
• Engine coolant level No Service if necessary.
• Coolant leakage (around heater unit in Repeat Step 1.Service if necessary.
passenger compartment, coolant hoses and/
or radiator.)
• Water and anti-freeze mixture
• Radiator condition
• Collapsed or restricted radiator hoses
• Radiator pressure cap
• Coolant overflow system
• Fan rotational direction
• Fan rotation direction
• Fuses
Are all items normal?
2 Connect the M-MDS to the DLC-2. Yes DTC is displayed:
Turn the ignition switch to the ON position Go to appropriate DTC test.
(Engine off). No No DTC is displayed:
Retrieve any DTCs. Go to the next step.
Is there any DTCs displayed?
3 Perform the KOEO and KOER self-test function Yes DTC is displayed:
using the M-MDS. Go to appropriate DTC test.
(See01-02-10 KOEO/KOER SELF TEST[L3 No No DTC is displayed: Go to the next step.
WITH TC].)
Is there any DTCs displayed?
4 Start the engine and run it at idle speed. Yes Go to the next step.
Turn the A/C switch off. No Go to symptom troubleshooting “NO.24 A/C ALWAYS
Does the A/C compressor disengaged? ON OR A/C COMPRESSOR RUNS CONTINUOUSLY.”
(See01-03-69 NO.24 A/C IS ALWAYS ON OR A/C
COMPRESSOR RUNS CONTINUOUSLY[L3 WITH
TC].)
5 Perform the Cooling Fan Control System Yes Go to the next step.
Operation Inspection. No Repair or replace malfunctioning part, according to
(See01-03-78 ENGINE CONTROL SYSTEM inspection results.
OPERATION INSPECTION[L3 WITH TC].)
Does the cooling fan system operate properly?
6 Is the drive belt normal? Yes Go to the next step.
No Replace the drive belt.
7 Is there any leakage around heater unit in Yes Inspect and service heater unit for leakage.
passenger compartment? No Go to the next step.
8 Is there any leakage at coolant hoses and/or Yes Replace the malfunctioning part.
radiator? No Go to the next step.

01-03–60
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
9 Cool down the engine. Yes Thermostat is normal.
Remove the thermostat and inspect operation. Inspect the cylinder block for leakage or blockage.
(See01-12-11 THERMOSTAT REMOVAL/ No Access the ECT PID using the M-MDS.
INSTALLATION[L3 WITH TC].) Inspect for both ECT PID and temperature gauge
(See01-12-11 THERMOSTAT INSPECTION[L3 readings.
WITH TC].) If the temperature gauge on instrument cluster
Is thermostat normal? indicates normal but ECT PID is not same as 01-03
temperature gauge reading, inspect the ECT sensor.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
If the temperature gauge on instrument cluster
indicates overheating but ECT PID is normal, inspect
the instrument cluster.
(See09-22-3 INSTRUMENT CLUSTER INSPECTION.)
10 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie
NO.18 COOLING SYSTEM CONCERNS-RUNS COLD[L3 WITH TC]
id010339802400

18 COOLING SYSTEM CONCERNS - RUNS COLD

DESCRIPTION Engine takes excessive time to reach normal operating temperature.
• Thermostat malfunction
POSSIBLE CAUSE • Condenser fan system malfunction
• Cooling fan system malfunction

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Is customer complaint “Lack of passenger Yes Inspect the A/C heater system.
compartment heat” only? No Go to the next step.
2 Does the engine speed continue at fast idle? Yes Go to symptom troubleshooting “NO.9 FAST IDLE/
RUNS ON.”
(See01-03-37 NO.9 FAST IDLE/RUNS ON[L3 WITH
TC].)
No Go to the next step.
3 Cool down the engine. Yes Go to the next step.
Remove the thermostat and inspect operation. No Replace the thermostat.
(See01-12-11 THERMOSTAT REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-12-11 THERMOSTAT INSPECTION[L3
WITH TC].)
Is thermostat normal?
4 Perform the Cooling Fan Control System Yes Access the ECT PID using the M-MDS.
Operation Inspection. Inspect for both ECT PID and temperature gauge
(See01-03-78 ENGINE CONTROL SYSTEM readings.
OPERATION INSPECTION[L3 WITH TC].) If the temperature gauge on instrument cluster
Does the cooling fan system operate properly? indicates normal but ECT PID is not same as
temperature gauge reading, inspect the ECT sensor.
(See01-40-25 ENGINE COOLANT TEMPERATURE
(ECT) SENSOR INSPECTION[L3 WITH TC].)
If the temperature gauge on instrument cluster
indicates overheating but ECT PID is normal, inspect
the instrument cluster.
(See09-22-3 INSTRUMENT CLUSTER INSPECTION.)
No Repair or replace malfunctioning part, according to
inspection results.

01-03–61
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
5 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie
NO.19 EXCESSIVE BLACK SMOKE[L3 WITH TC]
id010339802500

19 EXHAUST SMOKE
DESCRIPTION Blue, black, or smoke from the exhaust system
Blue smoke (Burning oil):
• PCV valve malfunction
• Engine internal oil leakage
• Oil leakage at the compressor or turbine end of the turbocharger
White smoke (Water in combustion):
• Cooling system malfunction (coolant loss)
• Engine internal coolant leakage
• Coolant leakage at the compressor or the turbine end of the turbocharger
Black smoke (Rich fuel mixture):
• Air cleaner restriction
• Intake-air system is collapsed or restricted
• Leakage at engine intake or exhaust manifold
• Wastegate valve malfunction (stuck open)
• Excessive fuel pressure
• Improper engine compression
• Ignition system malfunction
• Improper fuel injection timing and amount
POSSIBLE CAUSE
Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 What color is smoke coming from the exhaust Blue Burning oil is indicated.
system? Go to the next step.
White Water in combustion is indicated.
Go to the Step 5.
Black Rich fuel mixture is indicating.
Go to the Step 6.
2 Remove and shake the PCV valve. Yes Go to the next step.
Does the PCV valve rattle? No Replace the PCV valve.

01-03–62
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
3 Remove the parts necessary to inspect Yes Install all parts removed in this step.
turbocharger without removing the turbocharger. Perform the following, according to inspection
Visually inspect for the turbocharger compressor results. Excessive amount of oil is found:
housing. Replace the turbocharger.
Is any engine oil found inside turbocharger Small amount of oil is found:
compressor housing? Wipe oil out of vehicle, then Go to the next step.
No Turbocharger is normal. 01-03
Install all parts removed in this step.
Then, Go to the next step.
4 Inspect for the following engine internal parts. Yes Repair or replace suspected parts, according to the
• Damaged valve guide, stems or valve seals inspection results.
• Blocked oil drain passage in cylinder head No Engine internal parts are normal.
• Piston ring is not seated, seized or worn If other driveability symptoms are present, return to
• Damage cylinder bore diagnostic index to service additional symptoms.
Are there ant problem found?
5 Does cooling system hold the coolant pressure? Yes Inspect for the following:
(See01-12-6 ENGINE COOLANT LEAKAGE • Cylinder head gasket leakage
INSPECTION[L3 WITH TC].) • Intake manifold gasket leakage
• Cracked or porous engine block
If other driveability symptoms are present, return to
diagnostic index to service additional symptoms.
No Inspect for the cause.
6 Inspect for the following for intake-air system. Yes Go to the next step.
• Air cleaner restriction No Repair or replace the suspected part.
• Collapsed or restricted
• Leakage
Are all items normal?
7 Connect the M-MDS to the DLC-2. Yes Go to the next step.
Access following PIDs. No Inspect and repair or replace suspected parts and the
• ECT the related harnesses.
• MAF If the malfunction remains, perform the intermittent
• IAT concern troubleshooting procedure.
• IAT2 (See01-03-76 INTERMITTENT CONCERN
• APP TROUBLESHOOTING[L3 WITH TC].)
• TP
• MAP
• VSS
• O2S11
• O2S12
• LONGFT1
• SHTFT1
Monitor the PIDs under the black smoke
appeared engine condition.
Do all PID indicate normal according to engine
conditions?
8 Inspect the wastegate. Yes Perform the wastegate control system operation
(See01-13-16 WASTEGATE ACTUATOR inspection.
INSPECTION[L3 WITH TC].) (See01-03-78 ENGINE CONTROL SYSTEM
Does the wastegate stuck open? OPERATION INSPECTION[L3 WITH TC].)
Repair or replace malfunctioning part according to the
inspection results.
No Go to the next step.

01-03–63
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
9 Connect the M-MDS to DLC-2. Yes Go to the next step.
Access and monitor following PIDs using the No Inspect and repair or replace suspected parts and
data monitor function. related harnesses.
• ECT If the malfunction remains, perform the intermittent
• MAF concern troubleshooting procedure.
• IAT (See01-03-76 INTERMITTENT CONCERN
• IAT2 TROUBLESHOOTING[L3 WITH TC].)
• APP
• TP
• MAP
• VSS
• O2S11
• O2S12
• LONGFT1
• SHTFT1
Do the PIDs indicate correct values under
trouble condition?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
10 Access and monitor the FUEL_PRES PID. Yes Go to Step 14.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
11 Is vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 13.
12 Inspect the fuel pressure sensor. Yes Go to Step 14.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
13 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Retest Step 16.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
14 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Inspect or replace the malfunctioning parts, according
OPERATION INSPECTION[L3 WITH TC].) to the inspection results.
Is a strong blue spark visible at each cylinder?
15 Measure the compression pressure for each Yes Inspect the fuel injector for each cylinder.
cylinder. (See01-14-27 FUEL INJECTOR INSPECTION[L3
(See01-10-9 COMPRESSION INSPECTION[L3 WITH TC])
WITH TC].) No Inspect for the following:
Are compression pressures within the • Damaged valve seat
specification? • Worn valve stem and valve guide
• Worn or stuck piston ring
• Worn piston, piston ring or cylinder
• Improper valve timing
Service if necessary.
16 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–64
1871-1U-06B(01-03).fm 65 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.20 FUEL ODOR (IN ENGINE COMPARTMENT)[L3 WITH TC]
id010339802600

20 FUEL ODOR (IN ENGINE COMPARTMENT)

DESCRIPTION Gasoline fuel smell or visible leakage
• Excessive fuel pressure
• Purge solenoid valve malfunction
• Fuel system vent system blockage
• Evaporative gas leakage 01-03
• Improper connection of evaporative related vacuum hoses
• Charcoal canister malfunction
• Fuel leakage from fuel system

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before performing the fuel system services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
POSSIBLE CAUSE keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Visually inspect fuel leakage at fuel line. Yes Service if necessary.
Is there any fuel leakage? No Go to the next step.
2 Inspect the vacuum hose routine. Yes Go to the next step.
(See01-13-4 VACUUM HOSE ROUTING No Reconnect the vacuum hose.
DIAGRAM[L3 WITH TC].)
Are vacuum hoses routines properly?
3 Perform the Evaporative Emission (EVAP) Yes Repair or replace suspected part according to the
System Leak Inspection. inspection results.
(See01-03-78 ENGINE CONTROL SYSTEM No Go to the next step.
OPERATION INSPECTION[L3 WITH TC].)
Is there any problem found?
4 Inspect the airflow of purge solenoid valve. Yes Go to the next step.
(See01-16-9 PURGE SOLENOID VALVE No Replace the purge solenoid valve.
INSPECTION[L3 WITH TC].)
Is the purge solenoid airflow properly?
5 Connect the M-MDS to the DLC-2. Yes Inspect the charcoal canister for fuel saturation.
Access the FUEL_PRESPID. If excess amount of liquid fuel is present, replace the
Monitor the FUEL_PRES PID while idle and race charcoal canister.
the engine. No Inspect the fuel pressure sensor and the high pressure
Is the FUEL_PRES PID indicate15 MPa {153 fuel pump.
kgf/cm2, 2175 psi} or less? (See01-40-35 FUEL PRESSURE SENSOR
INSPECTION[L3 WITH TC].)
(See01-14-19 HIGH PRESSURE FUEL PUMP
INSPECTION[L3 WITH TC].)
5 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–65
1871-1U-06B(01-03).fm 66 ページ ２００６年３月１５日 水曜日 午前１０時３６分

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.21 ENGINE NOISE[L3 WITH TC]
id010339802700

21 ENGINE NOISE
DESCRIPTION Engine noise under hood
Squeal, click or chirp noise:
• Improper engine oil level
• Loose installation of solenoid valves
• Improper drive belt tension
Rumble or grinding sound noise:
• Loose parts
• Fluid revel low or air in power the steering fluid
• Improper drive belt tension
Hiss sound noise:
• Vacuum leakage
• Loose spark plug
• Air leakage from the intake-air system
Rattle noise:
• Loose parts
Rap or roar noise:
• Exhaust system looseness
Excessive noise from turbocharger:
• Foreign objects or material in the compressor inlet to the intake manifold ducting or the compressor
housing
• Carbon built-up in the turbine housing
• Turbocharger routing assembly banding or dragging
• Loose intake or exhaust ducting systems
POSSIBLE CAUSE Other noise:
• Camshaft friction gear noise or MLA noise
• Timing chain noise

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and
repair procedures. Read the following warnings before performing the fuel system
services:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR ROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Is the noise from the turbocharger? Yes Go to Step 8.
No Go to the next step
2 Is squeal, click or chirp sound present? Yes Inspect the engine oil level, solenoid valves installation
or drive belt tension.
No Go to the next step.
3 Is rumble or grinding sound present? Yes Inspect and repair the following;
• Drive belt tension
• Loose parts in engine compartment
• Power steering system fluid level
If normal, perform the power steering fluid line air
bleed.
(See06-14-3 AIR BLEEDING.)
No Go to the next step.
4 Is rattle sound present? Yes Inspect the location of rattle for loose parts.
No Go to the next step.

01-03–66
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
5 Is hiss sound present? Yes Inspect and repair the following;
• Vacuum leakage
• Spark plug looseness
• Intake-air system leakage
No Go to the next step.
6 Is rap or roar sound present? Yes Inspect the exhaust system or loose parts.
No Go to the next step. 01-03
7 Is knocking noise present? Yes Go to symptom troubleshooting “NO.13 KNOCKING/
PINGING”.
(See01-03-50 NO.13 KNOCKING/PINGING[L3 WITH
TC].)
No If noise comes from engine internal, inspect for the
friction gear, timing chain or MLA noise.
8 Inspect the intake and exhaust housing system Yes Repair installation or replace suspected part.
for loose installation. No Go to the next step.
Is there any problem found?
9 Remove the parts necessary to inspect Yes Replace the turbocharger.
turbocharger without removing the turbocharger. No Go to the next step.
Inspect if turbocharger compressor wheel is
bent, damaged, or interfering with housing on
vehicle.
Is there any problem?
10 Inspect the turbocharger compressor wheel Yes Replace the turbocharger.
locknut is loose or has fallen down inside No Go to the next step.
turbocharger.
Is there any problem?
11 Turn the turbocharger compressor wheel by Yes Go to the next step.
hand. No Replace the turbocharger.
Does the wheel turn easily and smoothly?
12 Visually inspect the turbine housing. Yes Clean built-up carbon or remove foreign materials.
Is there any carbon built-up or foreign material If turbine housing damaged, replace the turbocharger.
on turbine housing? No Install the removal parts at Step 9, and inspect all
turbocharger related parts installed correctly.
13 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie
NO.22 VIBRATION CONCERNS (ENGINE)[L3 WITH TC]
id010339802800

22 VIBRATION CONCERNS (ENGINE)

DESCRIPTION • Vibration from under the hood or driveline
• Loose attaching bolts or worn parts
POSSIBLE CAUSE
• Components malfunction such as worn parts

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Inspect the following components for loose Yes Inspect the following systems:
attaching bolts or worn parts: • Wheels
• Cooling fan • Transmission and mounts
• Condenser fan • Driveline
• Drive belt and pulley • Suspension
• Engine mounts Service if necessary.
• Exhaust system No Readjust or retighten suspect parts installation
Are all items normal? position.
Service if necessary for other parts.

01-03–67
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
2 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie
NO.23 A/C DOES NOT WORK SUFFICIENTLY[L3 WITH TC]
id010339802900

23 A/C DOES NOT WORK SUFFICIENTLY.

DESCRIPTION A/C compressor magnetic clutch does not engage when A/C switch is turned on.
• Improper refrigerant charging amount
• Open A/C magnetic clutch
• Open circuit between the A/C relay and the A/C magnetic clutch
• Poor ground of A/C magnetic clutch
POSSIBLE CAUSE • Refrigerant pressure switch is stuck open.
• A/C relay is stuck open.
• Seized A/C compressor
• Open circuit between the A/C switch and the PCM through both the refrigerant pressure switch and
the A/C amplifier

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Connect the M-MDS to the DLC-2. Yes DTC is displayed:
Turn the ignition switch to the ON position Go to the appropriate DTC test.
(Engine off). No No DTC is displayed:
Retrieve any DTCs. Go to the next step.
Are there any DTCs displayed?
2 Disconnect the A/C compressor connector. Yes Inspect for the ground condition of magnetic clutch on
Start the engine and turn the A/C switch on. A/C compressor.
Is there correct voltage at terminal of A/C If ground condition is normal, inspect for an open circuit
compressor magnetic clutch connector? magnetic clutch coil.
Specification No Go to the next step.
10.5 V or more
3 Disconnect the refrigerant pressure switch Yes Inspect the refrigerant pressure switch operation.
connector. If switch is normal, go to the next step.
Connect jumper wire between terminals of A/C No Inspect for the following:
high-pressure switch connector. • A/C switch is stuck open.
Connect jumper wires between terminals of • Open circuit between refrigerant pressure switch
refrigerant pressure switch connector. and PCM terminal 1AC
Turn the ignition switch to the ON position. • Open circuit between blower motor fan switch and
Turn A/C switch on and set blower fan to any resistor (if blower motor does not operate)
speed. • Evaporator temperature sensor and A/C amplifier
Does A/C work?
4 Remove jumper wire from switch connector. Yes Inspect the whether A/C relay is stuck open.
Reconnect connector to refrigerant pressure Replace if necessary.
switch. No Inspect the following and repair or replace if necessary:
Start engine and turn A/C switch on. • Refrigerant charging amount
Does fan operate? • A/C compressor for seizure
5 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.le. Retest.

End Of Sie

01-03–68
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY[L3 WITH TC]
id010339803000

24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY.

DESCRIPTION A/C compressor magnetic clutch does not disengage.
• A/C compressor magnetic clutch engagement is stuck.
• A/C relay is stuck closed.
POSSIBLE CAUSE • Short to ground between A/C switch and PCM
• Short to ground circuit between A/C relay and PCM 01-03
• A/C relay to magnetic clutch circuit shorted to battery power

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Connect the M-MDS to the DLC-2. Yes DTC is displayed:
Turn the ignition switch to the ON position Go to the appropriate DTC test.
(Engine off). No No DTC is displayed:
Retrieve any DTCs. Go to the next step.
Are there any DTCs displayed?
2 Start the engine and idle it. Yes Inspect for the following:
Turn the A/C switch on. • A/C relay is stuck closed.
Remove the A/C relay. • Short to ground circuit between A/C relay and PCM
Does the A/C magnetic clutch disengage? terminal 1I.
If both items normal, go to the next step.
No Inspect if circuit between A/C relay and magnetic clutch
shorts to battery power circuit.
If circuit is normal, inspect magnetic clutch for stuck
engagement or clearance.
3 Disconnect the refrigerant pressure switch Yes Inspect for a short to ground circuit between refrigerant
connector. pressure switch and PCM terminal 1AU.
Start the engine and turn the A/C switch on. No Go to the next step.
Note
• A/C should not work when disconnecting
connector. If A/C remains working, short
to ground circuit may be present.

Does A/C remain working?

4 Reconnect refrigerant pressure switch Yes Inspect for the following:
connector. • Short to ground circuit between A/C switch and A/C
Turn off A/C switch. amplifier
• Short to ground circuit between A/C amplifier and
Note refrigerant pressure switch
• A/C should not work when turning A/C No Inspect the whether A/C switch is stuck closed.
switch off. If A/C remains working, short to
ground circuit may be present.

Does A/C remain working?

5 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.le. Retest.

End Of Sie

01-03–69
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

NO.25 A/C IS NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS[L3 WITH TC]
id010339803100

25 A/C IS NOT CUT OFF UNDER WOT CONDITIONS.

DESCRIPTION A/C compressor magnetic clutch does not disengage under WOT.
• Accelerator position sensor malfunction
POSSIBLE CAUSE
• Loosely installed accelerator position sensor.

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Does the A/C compressor disengage when A/C Yes Go to the next step.
switch is turned off? No Go to symptom troubleshooting “No.24 A/C is always
on or A/C compressor runs continuously”.
2 Connect the M-MDS to the DLC-2. Yes DTC is displayed:
Turn the ignition switch to the ON position Go to appropriate DTC test.
(Engine off). No No DTC is displayed:
Retrieve any DTCs. Inspect the accelerator position sensor.
Are there any DTCs displayed?
3 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.le. Retest.

End Of Sie
NO.26 EXHAUST SULPHUR SMELL[L3 WITH TC]
id010339803200

26 EXHAUST SULPHUR SMELL

DESCRIPTION Rotten egg smell (sulphur) from exhaust
• Electrical connectors are disconnected or connected poorly
• Charcoal canister malfunction
• Vacuum lines are disconnected or connected improperly.
• Improper fuel pressure
• Poor fuel quality

Warning
The following troubleshooting flow chart contains fuel system diagnosis and repair
procedures. Read following warnings before servicing fuel system:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
POSSIBLE CAUSE • Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR PROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See 01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See 01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Are any driveability or exhaust smoke concerns Yes Go to the appropriate flow chart.
present? No Go to the next step.
2 Inspect for the following: Yes Go to the next step.
• Electrical connections No Service if necessary.
• Vacuum lines Repeat Step 2.
• Fuel quality
Are all items normal?

01-03–70
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
3 Connect the M-MDS to the DLC-2. Yes DTC is displayed:
Turn the ignition switch to the ON position Go to the appropriate DTC test.
(Engine off). No No DTC is displayed:
Retrieve any DTCs. Go to the next step.
Are there any DTCs displayed?
4 Access and monitor FUEL_PRES PID. Yes Go to Step 8.
Is the FUEL_PRES PID value within the No Go to the next step. 01-03
specified?
(See 01-40-6 PCM INSPECTION[L3 WITH TC].)
5 Is vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 7.
6 Inspect the fuel pressure sensor. Yes Go to Step 8.
(See 01-40-35 FUEL PRESSURE SENSOR No Go to the next step.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
7 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 9.
Is the FUEL_PRES PID value within the No Go to the next step.
specified?
(See 01-40-6 PCM INSPECTION[L3 WITH TC].)
8 Inspect the charcoal canister for fuel saturation. Yes Replace the charcoal canister.
Is excess amount of liquid fuel present in No Inspect the fuel tank vent system.
canister? If fuel tank vent system is normal, suggest trying a
different brand since sulfur content can vary in different
fuels.
If fuel tank vent system is not normal, repair or replace
the malfunctioning parts.
9 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.le. Retest.

End Of Sie
NO.27 FUEL REFILL CONCERNS[L3 WITH TC]
id010339803300

27 Fuel refill concerns

DESCRIPTION • Fuel tank does not fill smoothly.
• Clogged EVAP pipes
• Nonreturn valve malfunction
• Improper use of fuel nozzle
• Inadequate fuel filling speed

Warning
• The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before servicing the fuel system:
— Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
POSSIBLE — Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or
CAUSE death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR PROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of foreign
material.

01-03–71
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Diagnostic procedure
STEP INSPECTION ACTION
1 Connect the M-MDS to the DLC-2. Yes DTC is displayed:
Turn the ignition switch to the ON position Go to the appropriate DTC test.
(Engine off). No No DTC is displayed:
Retrieve any DTCs. Go to the next step.
Are there any DTCs displayed?
2 Remove the fuel-filler pipe. Yes Inspect for the following:
Make sure nonreturn valve is installed properly. • Improper use of fuel nozzle
Inspect the nonreturn valve operation. • Inadequate fuel filling speed
Is nonreturn valve normal? No Nonreturn valve is installed improperly:
• Reinstall the nonreturn valve to proper position.
Nonreturn valve does not operate properly:
• Replace the nonreturn valve.
3 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.le. Retest.

End Of Sie
NO.28 FUEL FILLING SHUT OFF ISSUES[L3 WITH TC]
id010339803400

28 Fuel filling shut off issues

DESCRIPTION • Fuel does not shut off properly.
• Clogged EVAP pipes
• Nonreturn valve malfunction
• Fuel shut-off valve malfunction
• Fuel nozzle malfunction
• Fuel nozzle is not inserted correctly.

Warning
• The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before servicing the fuel system:
— Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
POSSIBLE
— Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or
CAUSE
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR PROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of foreign
material.

Diagnostic procedure
STEP INSPECTION ACTION
1 Connect the M-MDS to the DLC-2. Yes DTC is displayed:
Turn the ignition switch to the ON position Go to the appropriate DTC test.
(Engine off). No No DTC is displayed:
Retrieve any DTCs. Go to the next step.
Are there any DTCs displayed?
2 Remove the fuel-filler pipe. Yes Inspect for the following:
Make sure nonreturn valve is installed properly. • Improper use of fuel nozzle
Inspect the nonreturn valve operation. • Fuel is not inserted correctly.
Is nonreturn valve normal? • Inspect fuel shut-off valve.
No Nonreturn valve is installed improperly:
• Reinstall the nonreturn valve to proper position.
Nonreturn valve does not operate properly:
• Replace the nonreturn valve.

01-03–72
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION ACTION
3 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.
01-03
End Of Sie
NO.29 SPARK PLUG CONDITION[L3 WITH TC]
id010339803600

29 SPARK PLUG CONDITION

DESCRIPTION Incorrect spark plug condition
Note
• Inspecting the condition of the spark plugs can determine whether a problem is related to a
specific cylinder or possibly all cylinders.

Wet/carbon stuck on specific plug:

• Spark— Weak, not visible
• Air/fuel mixture— Excessive fuel injection volume
• Compression— No compression, low compression
• Malfunctioning spark plug
Grayish white with specific plug:
• Air/fuel mixture— Insufficient fuel injection volume
• Malfunctioning spark plug
Wet/carbon is stuck on all plugs:
• Spark— Spark weak
• Air/fuel mixture— Too rich
• Compression— Low compression
• Clogging in intake/exhaust system
Grayish white with all plugs:
POSSIBLE CAUSE • Air/fuel mixture— Too lean

Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair
procedures. Read the following warnings before servicing the fuel system:
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or
death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete
“BEFORE REPAIR PROCEDURE” and “AFTER REPAIR PROCEDURE” described in this
manual.
(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
(See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly
cause damage to the fuel pipe and quick release connector. Always clean the quick release
connector joint area before disconnecting/connecting, and make sure that it is free of
foreign material.

Diagnostic procedure
STEP INSPECTION RESULTS ACTION
1 Remove all the spark plugs. Yes Troubleshooting completed.
Inspect the spark plug condition. No Specific plug is wet or covered with carbon:
Is the spark plug condition normal? Go to the next step.
Specific plug looks grayish white:
Go to Step 9.
All plugs are wet or covered with carbon:
Go to Step 11.
All plugs look grayish white:
Go to Step 19.
2 Is the spark plug wet/covered with carbon from Yes Inspect all areas related to oil.
engine oil? No Go to the next step.

01-03–73
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
3 Inspect the spark plugs for the following: Yes Go to the next step.
• Cracked insulator No Replace the spark plug.
• Heat range
• Air gap
• Worn electrode
Is the spark plug normal?
4 Inspect the compression pressure at the Yes Go to the next step.
suspected malfunctioning cylinder. No Repair or replace the malfunctioning parts.
Is the compression pressure correct?
(See01-10-9 COMPRESSION INSPECTION[L3
WITH TC].)
5 Install all the spark plugs. Yes Go to the next step.
Perform the spark test at the suspected No Repair or replace the malfunctioning parts.
malfunctioning cylinder.
Is a strong blue spark visible?
(Compare with normal cylinder.)
6 Access and monitor the FUEL_PRES PID. Yes Inspect the suspected cylinders fuel injector for the
Is the FUEL_PRES PID value within the following:
specification? • Open or short circuit in the fuel injector
(See01-40-6 PCM INSPECTION[L3 WITH TC].) (See01-14-27 FUEL INJECTOR INSPECTION[L3
WITH TC].)
No Go to the next step.
7 Inspect the fuel pressure sensor. Yes Go to the next step.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
8 Inspect the high pressure fuel pump. Yes Replace the delivery pipe.
(See01-14-19 HIGH PRESSURE FUEL PUMP Retest Step 6
INSPECTION[L3 WITH TC].) If the FUEL_PRES PID indication is other that the
Is the high pressure fuel pump normal? specification, replace the high pressure fuel pump.
No Replace the high pressure fuel pump.
9 Inspect the spark plug for the following. Yes Go to the next step.
• Heat range No Replace the spark plug.
• Air gap
Is the spark plug normal?
10 Perform the KOER self-test function using the M- Yes Go to appropriate the DTC test.
MDS. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 KOEO/KOER SELF TEST[L3 No Inspect the suspect cylinder fuel injector for the
WITH TC].) following:
Is the suspected cylinder injector circuit related • Resistance
DTC (P0201, P0202, P0203 or P0204) present? (See01-14-27 FUEL INJECTOR INSPECTION[L3
WITH TC].)
11 Is the air cleaner element free of blockage? Yes Go to the next step.
No Replace the air cleaner element.
12 Perform the spark test. Yes Go to the next step.
(See01-03-78 ENGINE CONTROL SYSTEM No Repair or replace the malfunctioning parts.
OPERATION INSPECTION[L3 WITH TC].)
Is a strong blue spark visible at each cylinder?
13 Access and monitor the FUEL_PRES PID. Yes Go to step 16.
Is the FUEL_PRES PID value within the No Go to the next step.
specification?
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
14 Inspect the fuel pressure sensor. Yes Go to the next step.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
15 Inspect the high pressure fuel pump. Yes Replace the delivery pipe.
(See01-14-19 HIGH PRESSURE FUEL PUMP Retest Step 13.
INSPECTION[L3 WITH TC].) If the FUEL_PRES PID indication is other that the
Is the high pressure fuel pump normal? specification, replace the high pressure fuel pump.
No Replace the high pressure fuel pump.

01-03–74
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

STEP INSPECTION RESULTS ACTION
16 Inspect the following PIDs: Yes Go to the next step.
• ECT No Repair or replace the malfunctioning parts.
• O2S11 (When engine can be started)
• MAF
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
Are the PIDs normal?
17 Perform the purge control inspection. Yes Go to the next step. 01-03
(When engine can be started) No Repair or replace the malfunctioning parts.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
Is the purge control correct?
18 Perform the compression inspection. Yes Inspect for clogging in the exhaust system.
Is the compression correct? No Repair or replace the malfunctioning parts.
19 When the engine cannot be started, inspect the Yes Repair or replace the malfunctioning part.
intake-air system for air leakage. No Go to the next step.
When the engine can be started, perform the
intake manifold vacuum inspection.
Is air sucked in from the intake-air system?
20 Access and monitor the FUEL_PRES PID. Yes Inspect for the following PIDs:
Is the FUEL_PRES PID value within the • ECT
specification? • O2S11
(See01-40-6 PCM INSPECTION[L3 WITH TC].) • O2S12
• MAF
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
Inspect the PCM ground condition.
No Go to the next step.
21 Is vehicle accelerate performance normally? Yes Go to the next step.
No Go to Step 13.
22 Inspect the fuel pressure sensor. Yes Go to the next step.
(See01-40-35 FUEL PRESSURE SENSOR No Replace the delivery pipe.
INSPECTION[L3 WITH TC].)
Is the fuel pressure sensor normal?
23 Replace the high pressure fuel pump. Yes Troubleshooting is completed.
Monitor FUEL_PRES PID. Go to Step 16.
Is the FUEL_PRES PID value within the No Inspect following PIDs.
specified? • ECT
(See01-40-6 PCM INSPECTION[L3 WITH TC].) • O2S11
• O2S12
• MAF
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
Inspect PCM ground condition.
24 Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the
repair or diagnosis.
— If the vehicle is repaired, troubleshooting is completed.
— If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later
calibration is available. Retest.

End Of Sie

01-03–75
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

INTERMITTENT CONCERN TROUBLESHOOTING[L3 WITH TC]
id010339800400
Vibration Method
• If a malfunction occurs or becomes worse while driving on a rough road or when the engine is vibrating,
perform the steps below.
Note
• There are several reasons why the vehicle or engine vibration could cause an electrical malfunction.
Check the following:
— Connectors are not fully seated.
— Wiring harnesses do not have full play.
— Wires laying across brackets or moving parts.
— Wires routed too close to hot parts.
• An improperly routed, improperly clamped, or loose harness can cause a wiring harness to become
pinched between parts.
• The connector joints, points of vibration, and places where the wiring harnesses pass through the firewall
and body panels are the major areas to be checked.

Inspection Method for Switch Connectors or Wires

1. Connect the M-MDS to the DLC-2.
2. Turn the ignition switch to the ON position (Engine off).

Note
• If engine starts and runs, perform the following steps during idle.

3. Access the PIDs for the switch you are inspecting.

4. Turn the switch on manually.
5. Slightly shake each connector or wiring harness
vertically and horizontally while monitoring the
PID.
• If the PID value is unstable, check for a poor
connection.

acxuuw00002361

Inspection Method for Sensor Connectors or Wires

1. Connect the M-MDS to the DLC-2.
2. Turn the ignition switch to the ON position (Engine off).
Note
• If the engine starts and runs, perform the following steps during idling.

3. Access the PIDs for the switch you are inspecting.

4. Slightly shake each connector or wiring harness
vertically and horizontally while monitoring the
PID.
• If the PID value is unstable, check for poor
connection.

acxuuw00002362

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Inspection Method for Sensors
1. Connect the M-MDS to the DLC-2.
2. Turn the ignition switch to the ON position (Engine off).

Note
• If the engine starts and runs, perform the following steps during idle.

3. Access the PIDs for the switch you are inspecting. 01-03
4. Shake the sensor slightly with your finger.
• If the PID value is unstable or a malfunction occurs, check for a poor connection or a poorly mounted
sensor or both.

Inspection Method for Actuators or Relays

1. Connect the M-MDS to the DLC-2.
2. Turn the ignition switch to the ON position (Engine off).

Note
• If engine starts and runs, perform the following steps during idling.

3. Prepare the output state control function for actuators or relays that you are inspecting.
4. Shake the actuator or relay with your finger for 3 s
after the output state control function is activated.
• If a variable click sound is heard, check for a
poor connection or a poorly mounted actuator
or both, or the relay.

Note
• Shake the relays too strongly may result in
open circuits.

acxuuw00002368

Water Sprinkling Method

If a malfunction occurs only during high humidity or rainy/snowy weather, perform the following steps:

Caution
• Indirectly change the temperature and humidity by spraying water onto the front of the radiator.
• If a vehicle is subject to water leakage, the leakage may damage the control module. When testing
a vehicle with a water leakage problem, special caution must be used.

1. Connect the M-MDS to the DLC-2 if you are inspecting sensors or switches.
2. Turn the ignition switch to the ON position (Engine off).

Note
• If the engine starts and runs, perform the following steps is idling.

3. Access the PIDs for the sensor or the switch if you are inspecting sensors or switches.
4. If you are inspecting the switch, turn it on manually.
5. Spray water onto the vehicle or run it through a
car wash.
• If the PID value is unstable or a malfunction
occurs, repair or replace parts if necessary.
End Of Sie

acxuuw00001941

01-03–77
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

ENGINE CONTROL SYSTEM OPERATION INSPECTION[L3 WITH TC]
id010339803700
Input Signal System Investigation Procedure
1. Find an unusual signal. (See01-03-78 Finding unusual signals.)
2. Locate the source. (See01-03-78 Locating the source of unusual signals.)
3. Repair or replace the defective part.
4. Confirm that the unusual signal has been erased.

Finding unusual signals

While referring to 01-02-7 ON-BOARD DIAGNOSTIC TEST[L3 WITH TC], use the PID/DATA monitor and record
function to inspect the input signal system relating to the problem.
1. Start the engine and idle the vehicle. You can assume that any signals that are out of specification by a wide
margin are unusual.
2. When recreating the problem, any sudden change in the monitor input signals that is not consciously created
by the driver can be determined as unusual.

Locating the source of unusual signals

Caution
• Compare the M-MDS monitor voltage with the measurement voltage using the digital
measurement system function. If you use another tester, a misreading may occur.
• When measuring the voltage, attach the tester ground to the ground of the PCM that is being
tested, or to the engine itself. If this is not done, the measured voltage and actual voltage may
differ
• After connecting the pin to a waterproof coupler, confirm continuity and measure the voltage, and
inspect the waterproof connector for cracks. If there are any, use sealant to fix them. Failure to do
this may result in deterioration of the wiring harness or terminal from water damage, leading to
problems with the vehicle.

Variable resistance type 1 (TP sensor)

PCM

VREF 4 3

INPUT 1 2

GND 6 5

acxuuw00002364

Investigate the input signal system for variable resistance type 1

1. When an unusual signal is received, measure the #1 PCM terminal voltage.
• If the #1 terminal voltage and the M-MDS monitor voltage are the same, proceed to the next step.
• If there is a difference of 0.5 V or more, inspect for the following points concerning the PCM connector:
— Female terminal opening is loose.
— Coupler (pin holder) damage
— Pin discoloration (blackness)
— Wiring harness/pin crimp is loose or disconnected.
2. Measure the #2 sensor terminal voltage.
• If there is a 0.5 V or more difference between the sensor and M-MDS voltages, inspect the wiring harness
for open or short circuits.
• If the sensor and M-MDS voltages are the same, inspect for the following points concerning the sensor
connector:
— Female terminal opening is loose.
— Coupler (pin holder) damage
— Pin discoloration (blackness)
• If there are no problems, proceed to next investigation below.

01-03–78
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Investigate the standard power supply system for variable resistance type 1
• Confirm that the #3 terminal is at 5 V.
— If the measured voltage on the #3 terminal is5 V, inspect the following points on the sensor connector.
— If there is no problem, inspect for the following:
• Female terminal opening loose
• Coupler (pin holder) damage
• Pin discoloration (blackness)
— If the #3 terminal measures other than 5 V, inspect for the following: 01-03
• Open or short circuit in wiring harness
• Wiring harness/pin crimp is loose or disconnected.

Investigate the ground system for variable resistance type 1

• Confirm that terminal sensor #5 is at 0 V.
— If it is at0 V, inspect the sensor.
• If necessary, replace the sensor.
— If not, inspect for the following:
• Open or short circuit in wiring harness
• Female terminal opening is loose causing an open or short circuit in wiring harness
• Coupler (pin holder) damage
• Pin discoloration (blackness)
• Wiring harness/pin crimp is loose or disconnected.

Variable resistance type 2 (fuel tank level sensor and mass air flow (MAF) sensor)

PCM

INPUT 1 2

GND 5 4

acxuuw00002365

Investigate the ground system for variable resistance type 2

• Confirm that terminal sensor #4 is at 0 V.
— If it is at 0 V, inspect the sensor.
• If necessary, replace the sensor.
— If not at 0 V, inspect for the following:
• Open circuit in wiring harness
• Female terminal opening is loose.
• Coupler (pin holder) damage
• Pin discoloration (blackness)
• Wiring harness/pin crimp is loose or disconnected.

Investigate the input signal system for variable resistance type 2

1. When an unusual signal is received, measure the #1 PCM terminal voltage.
• If the #1 terminal voltage and the M-MDS monitor voltage are the same, proceed to the next step.
• If there is a difference of 0.5 V or more, inspect for the following points concerning the PCM connector:
— Female terminal opening is loose.
— Coupler (pin holder) damage
— Pin discoloration (blackness)
— Wiring harness/pin crimp is loose or disconnected.
2. Measure the #2 sensor terminal voltage.
• If there is a 0.5 V or more difference between the sensor and M-MDS voltages, inspect the wiring harness
for open or short circuits.
• If the sensor and M-MDS voltages are the same, inspect the following points concerning the sensor
connector:
— Female terminal opening is loose.
— Coupler (pin holder) damage
— Pin discoloration (blackness)
— Wiring harness/pin crimp is loose or disconnected.
• If there are no problems, proceed to next investigation below.

01-03–79
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Investigate the electrical supply system for variable resistance type 2
• Confirm that the sensor #3 terminal is B+.
— If the measured voltage on the #3 terminal is B+, inspect the following points on the sensor connector.
— If there is no problem, inspect for the following:
• Female terminal opening is loose.
• Coupler (pin holder) damage
• Pin discoloration (blackness)
— If the #3 terminal measures other than B+, inspect the following:
• Open or short circuit in wiring harness
• Wiring harness/pin crimp is loose or disconnected.

Thermistor type (IAT sensor and ECT sensor)

PCM

INPUT 1 2

GND 4 3

acxuuw00002366

Investigate the input signal system for thermistor type

1. When an unusual signal is received, measure the #1 PCM terminal voltage.
• If the #1 terminal voltage and the M-MDS monitor voltage are the same, proceed to the next step.
• If there is a difference of 0.5 V or more, inspect the following points concerning the PCM connector:
— Female terminal opening loose
— Coupler (pin holder) damage
— Pin discoloration (blackness)
— Wiring harness/pin crimp is loose or disconnected.
2. Measure the #2 sensor terminal voltage.
• If there is a 0.5 V or more difference between the sensor and M-MDS voltages, inspect the wiring harness
for open or short circuits.
• If the sensor and M-MDS voltages are the same, inspect the following points concerning the sensor
connector:
— Female terminal opening is loose.
— Coupler (pin holder) damage
— Pin discoloration (blackness)
— Wiring harness/pin crimp is loose or disconnected.
• If there are no problems, proceed to next investigation below.

Investigate the ground system for thermistor type

• Confirm that terminal sensor #3 is at 0 V.
— If it is at 0 V, inspect the sensor. If necessary, replace the sensor.
— If not, inspect for the following:
• Open circuit in wiring harness
• Female terminal opening is loose.
• Coupler (pin holder) damage
• Pin discoloration (blackness)
• Wiring harness/pin crimp is loose or disconnected.

01-03–80
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

VSS

PCM

INPUT 1 2

01-03
3

acxuuw00002367

1. Measure the #1 PCM terminal voltage and confirm that it is at 0 V or 5 V when the ignition switch to the ON
position and the engine is idling.
• If it is at 0 V or 5 V, intermittent concern exists. (See01-03-76 INTERMITTENT CONCERN
TROUBLESHOOTING[L3 WITH TC].)
• If not, inspect the following points concerning the PCM connector.
• If there is no problem, inspect for the following:
— Female terminal opening is loose.
— Coupler (pin holder) damage
— Pin discoloration (blackness)
— Wiring harness/pin crimp is loose or disconnected.
2. Measure the #2 sensor terminal voltage and confirm that it is at 0 V or 5 V when the ignition switch to the ON
position and the engine is idling.
• If it is at 0 V or 5 V, intermittent concern exists. (See01-03-76 INTERMITTENT CONCERN
TROUBLESHOOTING[L3 WITH TC].)
• If not, inspect the following points concerning the sensor connector:
• If there is no problem, inspect for the following.
— Female terminal opening is loose.
— Coupler (pin holder) damage
— Pin discoloration (blackness)
— Wiring harness/pin crimp is loose or disconnected.
3. Confirm that the #3 terminal switch voltage is at 0 V.
• If it is at 0 V, inspect the sensor. If necessary, replace the sensor.
— If necessary, replace the sensor.
• If not, inspect for the following:
— Open circuit in wiring harness
— Female terminal opening is loose.
— Coupler (pin holder) damage
— Pin discoloration (blackness)
— Wiring harness/pin crimp is loose or disconnected.

Main Relay Operation Inspection

1. Verify that the main relay clicks when the ignition switch is turned to ON position and then off.
• If there is no operation sound, inspect the following:
— Main relay (See09-21-4 RELAY INSPECTION.)
— Wiring harness and connector between ignition switch and main relay terminal A.
— Wiring harness and connector between PCM terminal 1AT and main relay terminal B.

01-03–81
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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Intake Manifold Vacuum Inspection
1. Verify air intake hoses are installed properly.
2. Start the engine and run it is idling.
3. Disconnect the vacuum hose between the intake manifold and purge solenoid valve from the intake manifold
side.
4. Connect a vacuum gauge to the intake manifold and measure the intake manifold vacuum.
• If not as specified, inspect the following:
Specification
More than 60 kPa {450 mmHg, 18 inHg}
Note
• Air suction can be located by the engine speed change when lubricant is sprayed on the area where
suction is occurring.
— Air suction at throttle body, charge air cooler, intake manifold and PCV valve installation points
— EGR valve (stuck open)
— Engine compression
(See01-10-9 COMPRESSION INSPECTION[L3 WITH TC].)
Electronic Throttle Control System Inspection
Engine coolant temperature compensation inspection
1. Connect the M-MDS to the DLC-2.
2. Select the following PIDs:
• ECT
• IAT
• RPM
3. Verify that the engine is cold, then start the engine.
4. Verify that the engine speed decreases as the engine warms up.
• If the engine speed does not decrease or decreases slowly, inspect the following:
— ECT sensor and related wiring harness
(See01-40-25 ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION[L3 WITH TC].)
— Electronic throttle body and related wiring harness
(See01-13-12 THROTTLE ACTUATOR INSPECTION[L3 WITH TC].)
Load compensation inspection
1. Start the engine and run it is idling.
2. Connect the M-MDS to the DLC-2.
3. Verify that DTC P0506 or P0507 is not displayed.
• If DTC P0506, or P0507 is displayed, perform the DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
4. Select the RPM PID.
Note
• Excludes temporary idle speed drop just after the loads are turned on.

5. Verify that the engine speed is within the specification under each load condition.
• If the load condition is not as specified, inspect the following:
— A/C switch and related wiring harness
(See07-40-13 CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER].)
(See07-40-16 CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER].)
— Fan switch and related wiring harness
(See07-40-13 CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER].)
(See07-40-16 CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER].)
— PSP switch and related wiring harness
(See01-40-22 POWER STEERING PRESSURE (PSP) SWITCH INSPECTION[L3 WITH TC].)
Engine speed
Engine speed (rpm)
Load condition
P, N position D position
No load 650— 750 575— 675
E/L operating*1 650— 750 600— 700
P/S operating 650— 750 650— 750
A/C operating 650— 750 650— 750
*1
: When the following electrical loads are on: Headlights, rear defroster, cooling fan No.1, cooling fan No.2, and
the blower motor (2-step or more.)

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Throttle position (TP) sweep inspection
1. Connect the M-MDS to the DLC-2.
2. Reform the KOER self-test function.
(See01-02-10 KOEO/KOER SELF TEST[L3 WITH TC].)
3. Verify that none of the following DTCs are displayed:
• P0122, P0123, P0222, P0223, P2100, P2101, P2102, P2103, P2107, P2108, P2119, P2122, P2123,
P2127, P2128, P2135, P2138
— If any one DTC is displayed, perform the DTC inspection. 01-03
4. Access the TP_REL PID.
5. Verify that the PID reading is within the CTP value. (See01-40-6 PCM INSPECTION[L3 WITH TC].)
• If the PID reading is out of range, perform the following:
— Remove the air duct from the throttle valve body.
— Verify that the throttle valve opens when the accelerator pedal is depressed.
• If the throttle valve opens, inspect the throttle position sensor and the related wiring harness.
• If the throttle valve does not open, inspect the throttle actuator control motor and the related wiring
harness.
6. Gradually depress the throttle pedal and verify that the PID reading increases lineally.
• If the PID reading drops momentarily, inspect the following:
— Throttle position sensor
7. Fully depress the throttle pedal and verify that the PID reading is within the WOT value. (See01-40-6 PCM
INSPECTION[L3 WITH TC].)
• If the PID reading is out of range, perform the following:
— Remove the air duct from throttle valve body with connector connected.
— Verify that the throttle valve opens when throttle pedal is depressed.
• If the throttle valve opens, inspect the throttle position sensor and the related wiring harness.
• If the throttle valve does not open, inspect the throttle actuator control motor and the related wiring
harness.
Variable Swirl System Operation Inspection
1. Connect the M-MDS to the DLC-2.
2. Access the ECT PID.
3. Verify that the ECT PID is below 60°C {140°F}.
4. Start the engine.
5. Inspect the rod operation under the following conditions:
Rod operation
3,750 rpm
Engine speed
Below Above
Shutter valve actuator Operate Not operate

If the rod operation is not specified, inspect as follows:

1. Perform the KOER self-test using the M-MDS and verify that DTCs No. P2004, P2006, P2009 or P2010 are not
displayed.
• If DTC No. P2004, P2006, P2009 or P2010 are displayed, perform DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
If simulation function of M-MDS is used:
1. Turn the ignition switch to the ON position. (Engine off)
2. Turn the variable swirl solenoid valve from off to on using the IMRC PID and verify that the operation sound of
the solenoid valve is heard.
• If the operation sound is not heard, replace the variable swirl solenoid valve.
(See01-13-13 VARIABLE SWIRL SOLENOID VALVE INSPECTION[L3 WITH TC].)
• If the operation sound is not heard, inspect the following:
— Vacuum hose and vacuum chamber for looseness or damage
— Shutter valve actuator
(See01-13-13 VARIABLE SWIRL SHUTTER VALVE ACTUATOR INSPECTION[L3 WITH TC].)
— Check valve is stuck open or closed
— Shutter valve cannot move smoothly
If simulation function of M-MDS is not used:
1. Inspect variable swirl solenoid valve.
(See01-13-13 VARIABLE SWIRL SOLENOID VALVE INSPECTION[L3 WITH TC].)
• If the variable swirl solenoid valve is not normal, replace the variable swirl solenoid valve.
• If the variable swirl solenoid valve is normal, inspect the following:
— Vacuum hose and vacuum chamber for looseness or damage
— Shutter valve actuator
(See01-13-13 VARIABLE SWIRL SHUTTER VALVE ACTUATOR INSPECTION[L3 WITH TC].)
— Check valve is stuck open or closed
— Shutter valve cannot move smoothly

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Fuel Injector Operation Inspection
If simulation function of M-MDS is used:
STEP INSPECTION ACTION
1 Start the engine and warm it up until normal Yes Fuel injector work properly
operating temperature. No Engine speed does not drop an any cylinder:
Connect the M-MDS to DLC-2. Go to the next steps.
Select the INJ#1, INJ#2, INJ#3, and INJ#4 PIDs. Engine speed drops on some cylinders:
Turn the fuel injector from on to off using the Go to step 3.
PIDs for each cylinder.
Does the engine speed drop?
2 Perform the Main Relay Operation Inspection. Yes Go to the next step.
(See01-03-81 Main Relay Operation Inspection.) No Repair or replace the malfunctioning parts.
Does the main relay work properly?
3 Inspect the fuel injector of the suspected Yes Inspect the following for the suspected cylinder.
cylinder. • Fuel injector power and/or ground systems related wiring
(See01-14-27 FUEL INJECTOR harness and connectors.
INSPECTION[L3 WITH TC].) If all items normal replace the PCM.
Is the fuel injector normal? (See 01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
TC].)
No Replace the fuel injector.
(See 01-14-23 FUEL INJECTOR REMOVAL/
INSTALLATION[L3 WITH TC].)
4 Perform KOER self-test function using the M- Yes Go to the appropriate DTC test.
MDS. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 KOEO/KOER SELF TEST[L3 No Go to the next step.
WITH TC].)
Are DTCs P0201, P0202, P0203 and/or P0204
present?
5 Inspect the fuel injector of the suspected Yes Inspect the following for the suspected cylinder:
cylinder. • PCM terminals (pulled-out pins, corrosion)
(See01-14-27 FUEL INJECTOR • Fuel injector terminals (pulled-out pins, corrosion)
INSPECTION[L3 WITH TC].) If all items are normal replace the PCM.
Is the fuel injector normal? (See 01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
TC].)
No Replace the fuel injector.
(See 01-14-23 FUEL INJECTOR REMOVAL/
INSTALLATION[L3 WITH TC].)

If simulation function of M-MDS is not used:

STEP INSPECTION ACTION
1 Perform the KOER self-test function using the M- Yes Go to appropriate DTC test.
MDS. (See01-02-13 DTC TABLE[L3 WITH TC].)
(See01-02-10 KOEO/KOER SELF TEST[L3 No Go to the next step.
WITH TC].)
Are DTCs P0201, P0202, P0203 and/or P0204
present?
2 Inspect the fuel injector for each cylinder. Yes Go to the next step.
(See01-14-27 FUEL INJECTOR No Replace the fuel injector.
INSPECTION[L3 WITH TC].) (See 01-14-23 FUEL INJECTOR REMOVAL/
Is the fuel injector normal? INSTALLATION[L3 WITH TC].)
3 Inspect the following for the suspected cylinder: Yes Replace the PCM.
• Fuel injector power and/or ground system (See 01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
related wiring harnesses and connectors. TC].)
• PCM terminals (pulled-out pins, corrosion) No Repair or replace malfunctioning parts.
• Fuel injector terminals (pulled-out pins,
corrosion)
Are all items normal?

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Fuel Cut Control System Inspection

Note
• This inspection has to be performed after the Fuel Injector Operation Inspection.

If simulation function of M-MDS is used:

1. Warm up the engine and idle it.
2. Connect the M-MDS to the DLC-2. 01-03
3. Select the RPM and the FUELPW1 PIDs.
4. Monitor both PIDs while performing the following steps.
(1) Depress the accelerator pedal and increase the RPM PID to 4,000 rpm.
(2) Quickly release the accelerator pedal (brake pedal is not depressed) and verify that the FUELPW1 PID is 0
msec., and 2— 5 msec. when the RPM PID drops below 1,200 rpm.
• If not as specified, inspect the following.
— ECT sensor and related wiring harness
(See01-40-25 ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION[L3 WITH TC].)

If simulation function of M-MDS is not used:

1. Warm up the engine and idle it.
2. Measure the fuel injector control signal wave profile using the oscilloscope while performing the following steps.
(1) Depress the accelerator pedal and increase the engine speed to 4,000 rpm.
(2) Quickly release the accelerator pedal (brake pedal is not depressed) and verify that the wave profile
constantB+, and the wave appears when the engine speed drops below 1,200 rpm.
(See01-40-6 PCM INSPECTION[L3 WITH TC].)
• If not as specified, inspect the following.
— ECT sensor and related wiring harness
(See01-40-25 ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION[L3 WITH TC].)

Fuel Pump Operation Inspection

If simulation function of M-MDS is not used:
1. Connect the M-MDS to the DLC-2.
2. Remove the fuel-filler cap.
3. Turn the ignition switch to the ON position.
4. Turn the fuel pump relay from off to on using the FP PID and inspect if the operation sound of the fuel pump is
heard.
• If no operation sound is heard, proceed to the next step.
5. Measure the voltage at the wiring harness side fuel pump connector terminal B with the FIP PID turned on.
• If the voltage is as specified, inspect the following:
— Fuel pump continuity
— Fuel pump ground
— Wiring harness between the fuel pump relay and PCM terminal 1H
• If not as specified, inspect the following:
— Fuel pump relay
— Fuel pump speed control relay
— Wiring harness connector (Main relay—fuel pump relay—fuel pump resister—fuel pump.)

Specification
8.0— 11.5 V (Ignition switch at ON)

If simulation function of M-MDS is not used:

Caution
• Connecting the wrong check connector terminal may possibly cause a malfunction. Carefully
connect the specified terminal only.

1. Short the check connector terminal F/P to body ground using a jumper wire.
2. Remove the fuel-filler cap.
3. Turn the ignition switch to the ON position.
4. Verify that the fuel pump operation sound is heard.
• If no operation sound is heard, proceed to the next step.

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

5. Measure the voltage at wiring harness side fuel pump connector terminal B.
• If the voltage is as specified, inspect the following:
— Fuel pump continuity
— Fuel pump ground
— Wiring harness between the fuel pump relay and PCM terminal, 1H
• If not as specified, inspect the following:
— Fuel pump relay
— Fuel pump speed control relay
— Wiring harness connector (Main relay—fuel pump relay—fuel pump resister—fuel pump.)

Specification
8.0— 11.5 V (Ignition switch at on)

Fuel Pump Control System Inspection

If simulation function of M-MDS is used:
1. Connect the M-MDS to the DLC-2.
2. Turn the ignition switch to the ON position.
3. Select the FP PID.
4. Turn the fuel pump relay from off to on and inspect if the operation sound of the fuel pump relay is heard.
• If no operation sound is heard, inspect the fuel pump relay.
• If the fuel pump relay is normal, inspect the following:
— Wiring harness and connectors (Main relay—fuel pump relay—PCM terminal 1H)

If simulation function of M-MDS is not used:

1. Crank the engine and verify that the fuel pump relay operation sound is heard.
2. If the operation sound is not heard, inspect the following:
• Fuel pump relay
• Wiring harness and connectors (Main relay—fuel pump relay—PCM terminal 1H)

Fuel Pump Speed Control Inspection

If simulation function of M-MDS is used:
1. Perform the Fuel Pump Operation Inspection.
2. Connect the M-MDS to the DLC-2.
3. Turn the ignition switch to the ON position.
4. Turn the fuel pump speed control relay from off to on using the FPRR PID and verify that the fuel pump speed
control relay operation sound is heard.
• If the operation sound is not heard, inspect the following:
— Fuel pump speed control relay
— Wiring harness and connectors (Main relay—fuel pump speed control relay—PCM terminal 1AA)
5. Start the engine and run it is idling.
6. Remove the fuel-filler cap.
7. Turn the fuel pump speed control relay from off to on using the FPRR PID and inspect if the operation sound
frequency of the fuel pump is higher than when the FPRR PID is off.
• If it cannot be verified, inspect the following:
— Fuel pump resister
— Wiring harness and connectors (open circuit at fuel pump speed control relay terminal C—fuel pump
relay terminal D)

If simulation function of M-MDS is not used:

1. Perform the fuel pump operation inspection.
2. Verify that fuel pump relay operation sound is heard, while cranking the engine.
• If the operation sound is not heard, inspect the following:
— Fuel pump relay
— Wiring harnesses and connectors (Main relay— fuel pump relay— PCM terminal 1H)
3. Remove the fuel-filler cap.
4. Verify that the fuel pump unit operation sound frequency at cranking is higher than during idle.
• If it cannot verified, inspect for the following:
— Fuel pump resister
— Fuel pump relay
— Wiring harnesses and connectors (open circuit at fuel pump relay terminal C— fuel pump terminal B)

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 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
Spark Test
1. Disconnect the fuel pump relay.
2. Verify that each ignition coil and connector is connected properly.
3. Inspect the ignition system in the following procedure.
Warning
• High voltage in the ignition system can cause strong electrical shock which can result in serious
injury. Avoid direct contact to the vehicle body during the following spark test.
01-03
STEP INSPECTION ACTION
1 • Disconnect the ignition coil from the spark Yes Go to the next step.
plugs. No Perform no-load racing at 4,000 rpm for 2 min, 2 times to
• Remove the spark plugs. burn off the carbon deposits.
• Verify that the spark plugs do not have Repeat Step 1.
carbon deposits.
• Are the spark plugs normal?
2 • Inspect the spark plugs for damage, wear, Yes Go to the next step.
and proper plug gap. No Replace spark plugs, then go to the next step.
• Are the spark plugs normal?
3 • Reconnect the spark plugs to the ignition Yes Ignition system is normal.
coil. No Some cylinders do not spark:
• Ground the spark plugs to the engine.
• Go to the next step.
• Is a strong blue spark visible at each cylinder
while cranking the engine? All cylinders do not spark:
• Go to Step 5.
4 • Inspect the following wiring harnesses for an Yes Inspect and replace the ignition coil.
open or short circuit: (See01-18-2 IGNITION COIL INSPECTION[L3 WITH TC].)
— Ignition coil No.1 terminal C—PCM No Repair or replace the malfunctioning part, then go to Step 1.
terminal 2BA
— Ignition coil No.2 terminal C—PCM
terminal 2AW
— Ignition coil No.3 terminal C—PCM
terminal 2AX
— Ignition coil No.4 terminal C—PCM
terminal 2AT
• Are the wiring harnesses normal?
5 • Measure the voltage at terminal A in each Yes Go to the next step.
ignition coils. No Inspect the power supply circuit of ignition coils.
• Is the voltage B+?
6 • Does the PCM connector or ignition coil Yes Repair or replace the connector, then go to Step 1.
connectors have poor connection? No Go to the next step.
7 • Are the following parts normal? Yes Inspect for an open or short circuit in the wiring harness and
— CKP sensor and crankshaft pulley connector of the CKP sensor.
No Repair or replace the malfunctioning part, then go to Step 1.

EGR Control System Inspection

If simulation function of M-MDS is used:
1. Crank the engine and verify that the EGR valve operation (initial operation) sound is heard.
• If the operation sound is not heard, connect the M-MDS to the DLC-2 and verify that the DTC P0403 is
shown. Perform the DTC inspection. (See01-02-13 DTC TABLE[L3 WITH TC].)
2. Start the engine run it is idling.
3. Increase the step value of the EGR valve from 0 to 57 using the SEGR PID of the simulation function.
4. Operate the EGR valve and inspect if the engine speed becomes unstable or the engine stalls.
• If the engine speed does not change, proceed to the following.
(1) Stop the engine.
(2) Remove the EGR valve.
(3) Connect the EGR valve connector.
(4) Turn the ignition switch to the ON position.
(5) Increase the step value of EGR valve from 0 to 57 using SEGRP PID.
(6) Verify that the EGR valve operates according to the SEGRP PID.
• If the EGR valve is operated, clean the EGR valve and the EGR gas passage.
• If the EGR valve does not operate, replace the EGR valve.
5. Start the engine and warm it up completely.
6. Access the following PIDs.
• ECT, RPM, SEGRP, APP1, APP2, TP_REL, VSS
7. Idle the vehicle and verify that the SEGRP value is 0.

Revised 8/2006 (Ref. No. R087/06) 01-03–87

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SYMPTOM TROUBLESHOOTING [L3 WITH TC]
8. Put the vehicle in drive.
9. Depress the accelerator pedal and verify that the SEGRP value increases.
• If the SEGRP value does not increase, inspect the VSS, TP and ECT PIDs. (See01-40-6 PCM
INSPECTION[L3 WITH TC].)
10. Stop the vehicle and verify that the SEGRP value is returns to 0.

If simulation function of M-MDS is not used:

1. Verify that EGR valve operation (initial operation) sound is heard when the ignition switch is turned to the ON
position.
• If the operation sound is not heard, connect the M-MDS to the DLC-2 and verify that the DTC P0403 is
shown. Perform the DTC inspection. (See01-02-13 DTC TABLE[L3 WITH TC].)
2. Start the engine and idle it.
3. Warm up the engine to normal operating temperature.
4. Select the following PIDs:
• ECT, RPM, SEGRP, APP1, APP2, TP_REL, VSS
5. Let the vehicle idle and verify that the SEGRP value is 0.
6. Put the vehicle in drive.
7. Depress the accelerator pedal and verify that the SEGRP value is increased.
• If the EGR valve increases, inspect the following:
— EGR valve (stuck open or closed)
— Wiring harness and connectors (Main relay—EGR valve—PCM)
• If the SEGRP value does not increase, inspect the VSS, APP1, APP2, TP_REL and ECT PIDs. (See01-40-
6 PCM INSPECTION[L3 WITH TC].)
8. Stop the vehicle and verify that the SEGRP value returns to 0.

Purge Control System Inspection

If simulation function of M-MDS is used:
1. Start the engine.
2. Disconnect the vacuum hose between the purge solenoid valve and the charcoal canister.
3. Put a finger to the purge solenoid valve and verify that there is no vacuum applied when the engine is cold.
• If there is a vacuum, inspect the following:
— Wiring harness and connectors (Purge solenoid valve—PCM terminal 2AB)
— Purge solenoid valve (stuck open)
4. Connect the M-MDS to the DLC-2 and verify that the DTC P0403 is displayed. Perform the DTC inspection.
(See01-02-133 DTC P0403[L3 WITH TC].)
5. Select the EVAPCP PID.
6. Increase the duty value of the purge solenoid valve to 50% and inspect if the operation sound of the valve is
heard.
• If the operation sound is heard, inspect for loose or damaged vacuum hoses. (Intake manifold—purge
solenoid valve—charcoal canister)
• If the operation sound is not heard, perform the purge solenoid valve inspection. (See01-16-9 PURGE
SOLENOID VALVE INSPECTION[L3 WITH TC].)
7. Warm up the engine to normal operating temperature.
8. Monitor the EVAPCP PID using the M-MDS, and drive the vehicle approx. 2000 rpm for 30 s or more.
• If the EVAPCP PID is 0%, inspect the following.
— MAF, APP1, APP2, TP_REL and LOAD PIDs.

If simulation function of M-MDS is not used:

1. Start the engine.
2. Disconnect the vacuum hose between the purge solenoid valve and the charcoal canister.
3. Put a finger to the purge solenoid valve and verify that there is no vacuum applied when the engine is cold.
• If there is vacuum, inspect the following:
— Wiring harness and connectors (Purge solenoid valve—PCM terminal, 2AB)
— Purge solenoid valve
4. Warm up the engine to the normal operating temperature.
5. Stop the engine.
6. Connect the M-MDS to the DLC-2 and verify that the DTC P0443 is shown. Perform DTC inspection. (See01-
02-13 DTC TABLE[L3 WITH TC].)
7. Turn the ignition switch to the ON position.
8. Select the ECT PID.
9. Verify that the engine coolant temperature is above 60°C {140°F}.
• If the M-MDS indicates that the temperature is below 60°C {140°F}, perform the ECT sensor inspection.

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

10. Set the vehicle on the dynamometer or chassis roller.

Warning
• When the dynamometer or chassis roller is operating, there is a possibility that the operator may
come into contact with or be caught up in the rotating parts, leading to serious injuries or death.
When performing work while the dynamometer or chassis roller is operating, be careful not to
contact or be caught up in any of the rotating parts.
01-03
11. Drive vehicle at an engine speed to approx. 2000 rpm for 30 s or more.
12. Put a finger to the purge solenoid valve and verify that there is no vacuum applied during Step 2.
• If there is no vacuum, inspect the following:
— Wiring harness and connector (Main relay—purge solenoid valve—PCM terminal 2AB)
— Purge solenoid valve
— MAF, APP1, APP2, TP_REL and LOAD PIDs
• If there is vacuum, inspect the following:
— Vacuum hose (Purge solenoid valve—charcoal canister)
A/C Cut-off Control System Inspection
1. Start the engine.
2. Turn the A/C switch and fan switch on.
3. Verify that the A/C compressor magnetic clutch actuates.
• If it does not actuate, go to symptom troubleshooting “No.23 A/C does not work sufficiently“.
4. Fully open the throttle valve and verify that the A/C compressor magnetic clutch does not actuate for 2— 5 s.
• If it actuates, inspect as follows:
— A/C relay
— Open or short to ground circuit in the wiring harness and connectors (Ignition switch—A/C relay—PCM
terminal 1I)
— A/C related parts
— APP1, APP2 PIDs
Cooling Fan Control System Inspection
1. Connect the M-MDS to the DLC-2.
2. Start the engine and warm it up to normal operating temperature.
3. Perform the KOER self-test.
(See01-02-10 KOEO/KOER SELF TEST[L3 WITH TC].)
4. Verify that the DTC P0480 is not shown and the cooling fan operates during the KOER self-test.
• If DTC P0480 is shown, perform the DTC troubleshooting procedure.
(See01-02-152 DTC P0480[L3 WITH TC].)
• If the cooling fans do not operate, proceed to the following:
(1) Verify the clicking sound of the cooling fan relay when the ignition switch is turned from the off to the ON
position.
(2) If there is no the clicking sound, inspect the cooling fan relay for an open circuit between the ignition switch
and the cooling fan relay.
• If there is a clicking sound, go to the next step.
• Inspect the following parts in the indicated order in accordance with fan operation conditions.
Cooling fans do not operate
— Open circuit between the fan control module and the cooling fan relay
— Open circuit between fan control module and ground
— Poor connection of the fan control module connector
— Fan control module
(See01-12-14 FAN CONTROL MODULE INSPECTION[L3 WITH TC].)
Cooling fan motor No.1 does not operate
— Open or short to ground circuit between the fan control module and cooling fan motor No.1
— Poor connection of the fan control module connector or cooling fan motor No.1 connector
— Cooling fan motor No.1
(See01-12-14 FAN MOTOR INSPECTION[L3 WITH TC].)
— Fan control module
(See01-12-14 FAN CONTROL MODULE INSPECTION[L3 WITH TC].)
Cooling fan motor No.2 does not operate
— Open or short to ground circuit between the fan control module and the cooling fan motor No.2
— Poor connection of the fan control module connector or the cooling fan motor No.1 connector
— Cooling fan motor No.2
(See01-12-14 FAN MOTOR INSPECTION[L3 WITH TC].)
— Fan control module
(See01-12-14 FAN CONTROL MODULE INSPECTION[L3 WITH TC].)

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Wastegate Control System Operation Inspection
If simulation function of M-MDS is used:
1. Start the engine and run it is idling.
2. Disconnect the hose between the wastegate control solenoid valve and the intake pipe.
3. Put a finger to the wastegate control solenoid valve and verify that there is no pressure applied.
• If there is pressure, inspect the following:
— Wiring harness and connectors (Wastegate control solenoid valve— PCM terminal 2AA)
— Wastegate control solenoid valve (Stuck open)
4. Warm up the engine to normal operating temperature.
5. Connect the M-MDS to the DLC-2 and verify that DTC P0245 or P0246 are shown. Perform the DTC
inspection.
(See01-02-112 DTC P0245[L3 WITH TC].)
(See01-02-114 DTC P0246[L3 WITH TC].)
6. Select the VGT PID.
7. Increase the duty value of the wastegate control solenoid valve and inspect if the operation sound of the
solenoid valve is heard.
• If the operation sound is heard, inspect for loose or damaged vacuum hoses. (Wastegate actuator—
wastegate control solenoid valve—intake hose)
• If the operation sound is not heard, perform the wastegate control solenoid valve inspection.
(See01-13-14 WASTEGATE CONTROL SOLENOID VALVE INSPECTION[L3 WITH TC].)
8. Warm up the engine to normal operating temperature.
9. Monitor the VGT and APP PIDs using the M-MDS.
10. Run the engine with the APP PID above 30% and verify that the VGT PID value increases from 0%.
• If the VGT PID is 0%, inspect the APP PID.

If simulation function of M-MDS is not used:

1. Start the engine and run it is idling.
2. Disconnect the hose between the wastegate control solenoid valve and the intake pipe.
3. Put a finger to the wastegate control solenoid valve and verify that there is no pressure applied.
• If there is pressure, inspect the following:
— Wiring harness and connectors (Wastegate control solenoid valve—PCM terminal 2AA)
— Wastegate control solenoid valve (Stuck open)
4. Warm up the engine to normal operating temperature.
5. Connect the M-MDS to the DLC-2 and verify that the DTC P0245 or P0246 are shown. Perform the DTC
inspection.
(See01-02-112 DTC P0245[L3 WITH TC].)
(See01-02-114 DTC P0246[L3 WITH TC].)
6. Warm up the engine to normal operating temperature.
7. Monitor the VGT and APP PIDs using the M-MDS.
8. The hose between the wastegate control solenoid valve and intake pipe is disconnected.
9. Run the engine with the APP PID above 30% and verify that the VGT PID value increases from 0% and there
is pressure applied.
• If the VGT PID is 0%, inspect the TP_REL PID.
• If there is no pressure applied, inspect for the following:
— Wastegate control solenoid valve (Stuck closed)
— Hose connection (Intake hose (turbocharger compressor downstream side) —wastegate actuator—
intake hose (turbocharger compressor upstream side))

Variable Valve Timing Control System Operation Inspection

When idling cannot be continued
1. Remove the oil control valve (OCV) and verify that the spool valve is at maximum retard position.
2. Connect the oil control valve (OCV).
3. Turn the ignition switch to the ON position.
4. Verify that the spool valve is at the maximum retard position.
• If the spool valve is stuck in the advance direction, inspect for the following:
— Short circuit in wiring harnesses or connectors between the oil control valve (OCV) and the PCM.
5. Inspect the variable timing actuator.

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

When idling can be continued
If simulation function of M-MDS is used:
1. Warm up the engine to normal operating temperature.
2. Connect the M-MDS to the DLC-2.
3. Start the engine and run it is idling.
4. Select the VT DUTY1 PID.
5. Increase the oil control valve (OCV) duty value and verify that the engine idles roughly or stalls.
• If as specified, inspect the timing belt component (valve timing deviation). 01-03
• If not as specified, go to the next step.
6. Remove the oil control valve (OCV) while the connector is connected.
7. Turn the ignition switch to the ON position.
8. Select VT DUTY1 PID.
9. Increase the oil control valve (OCV) duty value and verify that the spool valve operates in the advance direction.
• If as specified, inspect the following hydraulic passage for clogging and/or leakage.
— Oil pressure switch—oil control valve (OCV)
— Oil control valve (OCV) —camshaft
— Camshaft internal passage
• If not as specified, inspect the following:
— Oil control valve (OCV) operation
— Harness and connectors for open or short circuit (Oil control valve (OCV) —PCM terminal 2AF)
10. If they are normal, replace the intake camshaft pulley (with a built-in variable valve timing actuator).
If simulation function of M-MDS is not used:
1. Disconnect the oil control valve (OCV) connector.
2. Warm up the engine and idle it.
3. Apply battery voltage to the oil control valve (OCV) and verify that the engine idles roughly or stalls.
• If the engine idles roughly or stalls, inspect the timing belt component (valve timing deviation).
• If the engine does not idle roughly or stalls, go to the next step.
4. Remove the oil control valve (OCV) and perform the spool valve operation inspection.
(See01-10-29 OIL CONTROL VALVE (OCV) INSPECTION[L3 WITH TC].)
• If not as specified, inspect the following:
— Oil control valve (OCV)
— Harnesses and connectors between oil control valve (OCV) and PCM have an open or short circuit.
• If as specified, inspect the following hydraulic passages for clogging or leakage or both:
— Oil pressure switch—oil control valve (OCV)
— Oil control valve (OCV) —camshaft
— Camshaft internal passage
5. If they are normal, replace the camshaft pulley (with built-in variable valve timing actuator).

Evaporative Emission (EVAP) System Leak Inspection

• To verify that the problem has been fixed properly after repairs, the run-drive cycle or EVAP system leak
inspection must be performed.

EVAP system leak inspection using the M-MDS

Note
EVAP system test outline
• The EVAP system test, which can substituted for the run-drive cycle as an EVAP control system repair
confirmation method, can be done while operating the M-MDS in the KOEO (Key On Engine Off) condition
instead of actually driving the vehicle.
EVAP system test description
• The EVAP system test finds gas leaks in the system using the PCM to monitor changes in the air pump
load current of the EVAP system leak detection pump. This test starts after sending an on-demand test
signal from the M-MDS to the PCM. The PCM controls the air pump and change-over-valve operation and
also stores the load current of the air pump as follows:
i. The PCM turns the air pump on and retrieves the air pump load current value (LDP_MON PID) as a
reference current (LDP_REF PID).
ii. After retrieving the reference current value, the PCM commands the change-over-valve to open, then
captures the air pump load current value (LDP_MON PID) as the idle current (LDP_IDL PID). The
EVAP system will be pressurized from this phase.

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

iii. The PCM continues to monitor the air
pump load current value (LDP_MON
CHANGE-
PID) until the end of the test. OVER-VALVE CLOSED
OPEN

AIR-PUMP ON OFF
(LDP-REF) PASS
LOAD FAIL
CURRENT
(LDP-MON)
(LDP-IDL)

acxuuw00000321

• You can confirm whether any EVAP gas leak

has occurred or not by reading the test INTAKE
results. MANIFOID

FUEL TANK PURGE-VALVE

CANISTER
EVAPORATIVE EMISSION
SYSTEM LEAK DETECTION
PUMP
CHANGE-OVER-VALVE

ORIFICE
P
AIR-PUMP

AIR FILTER

AIR

acxuuw00000322

EVAP system malfunction judgment

• The PCM calculates the stored air pump load current value and sends the results to the M-MDS as DTCs:

DTC No. Condition

P0442 EVAP control system leak detected (small leak)
P0446 Change over valve (COV) (EVAP system leak detection pump) stuck closed
P0455 EVAP control system leak detected (gross leak)
P0456 EVAP control system leak detected (very small leak)
P2401 EVAP system leak detection pump motor circuit low
P2402 EVAP system leak detection pump motor circuit high
P2404 EVAP system leak detection pump sensor circuit malfunction
P2405 EVAP system leak detection pump sensor circuit low input
P2407 EVAP system leak detection pump sensor circuit intermittent

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

Evaporative system test procedure
1. Select the EVAP system test from the Toolbox on the M-MDS display and follow the instructions.
2. Verify that all of the following PIDs are within the specifications at the pre-test confirmation screen.

Note
• To successfully perform this procedure, all PIDs must be within the following specifications before
proceeding to the next step.
• The PCM will cancel the EVAP system test if the B+ PID value falls lower than 11.0 V during the test. 01-03
Specification
PID PID Range
BARO 72.2 kPa {543 mmHg, 21.3 inHg} or more
FLI 15— 85%
IAT 5— 45 °C {41— 113 °F}
B+ 11.0 V or more

3. Start the engine.

4. Drive the vehicle or let the engine idle more than 20 min.
5. Turn the ignition switch off, then turn it to the ON position again (Key On Engine Off).
6. Press the tick icon to start the test.
7. Verify that no DTCs are present after the completion of the test.
• If any test result is indicated with red, diagnose the problem using the following DTC troubleshooting procedure
or component inspection procedure.
• If any DTCs are detected, diagnose the problem using the appropriate DTC troubleshooting procedure.

EVAP system leak inspection using leak tester

1. Perform the following SST (EVAP System Tester 134-01049) self-test:

Note
• If the tester does not work correctly during the self-test, refer to the tester operators manual for a more
detailed self-test procedure.

(1) Verify that the control valve on the panel is in

the HOLD position, then open the nitrogen PRESSURE VALVE "TEST AND HOLD"
GAUGE
bottle valve.
(2) Connect the vehicle interface hose (part of
the SST) to the SELF TEST port located on
the control panel. Hand tighten the fitting. (Do
not overtighten.)
(3) Turn the control valve to the TEST position.
(4) The gauge should read 331— 381 mm {13—
15 in} of water.
• If the gauge is not reading in this range,
SELF-TEST
adjust the pressure by turning the black
PORT
knob on the low pressure regulator at the
nitrogen bottle.
(5) Turn the control valve to the HOLD position.
(6) Verify that the gauge holds pressure and that .020 TEST .040 TEST
the flow meter reads no flow. PORT PORT
• If there is no drop in pressure and no flow, acxuuw00000323
the tester passes the self-test.
• If the gauge leaks down, refer to the
operators manual.

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

2. Connect the SST to the vehicle.
(1) Verify that the control valve on the panel is in the HOLD position then open the nitrogen bottle valve.
(2) Remove the fuel-filler cap from the vehicle.
• If the fuel-filler cap is not a MAZDA part or equivalent, replace it.
(3) Connect the receiver assembly (SST: 134- CAP ADAPTER VEHICLE CAP
01059) to the vehicle cap test hose assembly TEST HOSE
(part of SST) and the fuel-filler cap from the ASSEMBLY
vehicle.
(4) Connect the cap adaptor (SST: 134-01058) to VEHICLE
INTERFACE
the vehicle cap test hose assembly (part of
HOSE
the SST) and to the fuel-filler neck.
(5) Connect the vehicle interface hose (part of
the SST) to the center fitting of the vehicle cap
test hose assembly (part of the SST).
RECEIVER
3. Connect the M-MDS to the DLC-2. ASSEMBLY
4. Turn the ignition switch to the ON position (Engine
acxuuw00000324
off).
5. Request the PCM on-board device control (Mode
08) using the M-MDS to close the change-over valve (COV) in the EVAP system leak detection pump.

Note
• The COV is closed for 10 min unless any of the following actions are performed:
— The engine is started.
— The ignition switch is turned off.

6. Make sure the control valve on the 134-01049 is in the HOLD position and that the valve on the cylinder of
nitrogen gas is open.
7. Turn the control valve to the open position and let the system fill. You should note a drop in the gauge pressure
along with the flow meter being pegged at maximum flow for several minutes depending on how full or empty
the fuel tank is, and how long it takes to completely fill and pressurize the evaporative emissions system hoses.
8. If the gauge and the flow meter do not settle to a measurable level after 2— 3 min, then refer to the Mazda
Workshop Manual to verify that the cut or vent valve is properly closed.
9. Verify the pressure gauge and flow meter reading to determine if there is an evaporative emissions leak:
NO EVAPORATIVE LEAK:
• The flow meter registers “zero flow” and the pressure gauge returns to the pre-set pressure of 356 mm {14
in} of water (H2O).
EVAPORATIVE LEAK:
• The pressure does not return to the preset level of 356 mm {14 in} of water (H2O) when measuring the
flow. See “SETTING LEAK STANDARD FOR TESTING” (.020 to. 040 inch H2O) of the Evaporative
Emissions Tester operators manual (134-01067).

Note
• Turn the control valve to the HOLD position then disconnect the SST.

End Of Sie

01-03–94
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
01-10 MECHANICAL [L3 WITH TC]
MECHANICAL LOCATION INDEX CYLINDER HEAD GASKET
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–2 REPLACEMENT[L3 WITH TC] . . . . . . . 01-10–20
DRIVE BELT INSPECTION Camshaft Removal Note . . . . . . . . . . . . 01-10–22
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–3 Cylinder Head Removal Note . . . . . . . . 01-10–22
DRIVE BELT REMOVAL/INSTALLATION Cylinder Head Installation Note. . . . . . . 01-10–22
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–3 Camshaft Installation Note . . . . . . . . . . 01-10–23 01-10
DRIVE BELT AUTO TENSIONER FRONT OIL SEAL REPLACEMENT
INSPECTION[L3 WITH TC] . . . . . . . . . 01-10–4 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–23
VALVE CLEARANCE Crankshaft Pulley Lock Bolt
INSPECTION/ADJUSTMENT Removal Note. . . . . . . . . . . . . . . . . . . 01-10–24
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–4 Front Oil Seal Removal Note. . . . . . . . . 01-10–25
Valve Clearance Front Oil Seal Installation Note . . . . . . . 01-10–25
Inspection . . . . . . . . . . . . . . . . . . . . . 01-10–4 Crankshaft Pulley Lock
Valve Clearance Bolt Installation Note . . . . . . . . . . . . . . 01-10–25
Adjustment . . . . . . . . . . . . . . . . . . . . . 01-10–5 REAR OIL SEAL REPLACEMENT
COMPRESSION INSPECTION [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–26
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–9 Rear Oil Seal Installation Note . . . . . . . 01-10–27
TIMING CHAIN VARIABLE VALVE TIMING ACTUATOR
REMOVAL/INSTALLATION INSPECTION[L3 WITH TC] . . . . . . . . . . 01-10–28
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–10 VARIABLE VALVE TIMING ACTUATOR
Cylinder Head Cover REMOVAL/INSTALLATION
Removal Note . . . . . . . . . . . . . . . . . . 01-10–12 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–28
Crankshaft Pulley Lock Bolt OIL CONTROL VALVE (OCV)
Removal Note . . . . . . . . . . . . . . . . . . 01-10–12 REMOVAL/INSTALLATION
No.3 Engine Mount [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–29
Removal Note . . . . . . . . . . . . . . . . . . 01-10–12 OIL CONTROL VALVE (OCV)
Front Oil Seal Removal Note . . . . . . . . 01-10–14 INSPECTION[L3 WITH TC]. . . . . . . . . . 01-10–29
Chain Tensioner Removal Note . . . . . . 01-10–14 Coil Resistance Inspection . . . . . . . . . . 01-10–29
Oil Pump Driven Sprocket Spool Valve Operation Inspection . . . . . 01-10–29
Removal Note . . . . . . . . . . . . . . . . . . 01-10–15 ENGINE REMOVAL/INSTALLATION
Oil Pump Drive Sprocket
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–31
Installation Note . . . . . . . . . . . . . . . . 01-10–15
No.1 Engine Mount
Oil Pump Driven Sprocket
Removal Note . . . . . . . . . . . . . . . . . . . 01-10–33
Installation Note . . . . . . . . . . . . . . . . 01-10–16
No.3 Engine Mount Rubber, No.4
Timing Chain Installation Note . . . . . . . 01-10–16
Engine Mount Bracket
Front Oil Seal Installation Note . . . . . . 01-10–16
Removal Note . . . . . . . . . . . . . . . . . . . 01-10–33
Engine Front Cover
Engine Mount Installation Note . . . . . . . 01-10–33
Installation Note . . . . . . . . . . . . . . . . . 01-10–17
ENGINE DISASSEMBLY/ASSEMBLY
No.3 Engine Mount
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–35
Installation Note . . . . . . . . . . . . . . . . 01-10–17
ENGINE TUNE-UP[L3 WITH TC] . . . . . . . 01-10–35
Crankshaft Pulley Lock
Engine Tune-up Preparation . . . . . . . . . 01-10–35
Bolt Installation Note . . . . . . . . . . . . . 01-10–18
Ignition Timing Inspection . . . . . . . . . . . 01-10–36
Cylinder Head Cover
Idle Speed Inspection . . . . . . . . . . . . . . 01-10–36
Installation Note . . . . . . . . . . . . . . . . 01-10–19
Idle Mixture Inspection . . . . . . . . . . . . . 01-10–36

End of Toc
WM: ENGINE COMPLETE

Revised 9/2006 (Ref. No. R115/06) 01-10–1

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
MECHANICAL LOCATION INDEX[L3 WITH TC]
id011039800100

8
1

7
6
4

acxuuw00000134

1 Drive belt 5 Cylinder head gasket

(See01-10-3 DRIVE BELT INSPECTION[L3 WITH (See01-10-20 CYLINDER HEAD GASKET
TC].) REPLACEMENT[L3 WITH TC].)
(See01-10-3 DRIVE BELT REMOVAL/ 6 Front oil seal
INSTALLATION[L3 WITH TC].) (See01-10-23 FRONT OIL SEAL
(See01-10-4 DRIVE BELT AUTO TENSIONER REPLACEMENT[L3 WITH TC].)
INSPECTION[L3 WITH TC].) 7 Rear oil seal
2 Tappet (See01-10-26 REAR OIL SEAL REPLACEMENT[L3
(See01-10-4 VALVE CLEARANCE INSPECTION/ WITH TC].)
ADJUSTMENT[L3 WITH TC].) 8 OCV
3 Engine (See01-10-29 OIL CONTROL VALVE (OCV)
(See01-10-9 COMPRESSION INSPECTION[L3 REMOVAL/INSTALLATION[L3 WITH TC].)
WITH TC].) (See01-10-29 OIL CONTROL VALVE (OCV)
(See01-10-31 ENGINE REMOVAL/ INSPECTION[L3 WITH TC].)
INSTALLATION[L3 WITH TC].) 9 Variable valve timing actuator
(See01-10-35 ENGINE DISASSEMBLY/
ASSEMBLY[L3 WITH TC].) (See 01-10-28 VARIABLE VALVE TIMING
(See01-10-35 ENGINE TUNE-UP[L3 WITH TC].) ACTUATOR INSPECTION[L3 WITH TC].)
4 Timing chain (See01-10-28 VARIABLE VALVE TIMING
(See01-10-10 TIMING CHAIN REMOVAL/ ACTUATOR REMOVAL/INSTALLATION[L3 WITH
INSTALLATION[L3 WITH TC].) TC].)

01-10–2 Revised 9/2006 (Ref. No. R115/06)

1871-1U-06B(01-10).fm 3 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

End Of Sie

DRIVE BELT INSPECTION[L3 WITH TC]

WM: DRIVE BELT

id011039801500

Note
• Drive belt deflection/tension inspection is not necessary because of the use of the drive belt auto
tensioner.

1. Verify that the drive belt auto tensioner indicator mark does not exceed the limit.
• If it exceeds the limit, replace the drive belt. 01-10
(See01-10-3 DRIVE BELT REMOVAL/
INSTALLATION[L3 WITH TC].)
End Of Sie

INDICATOR
MARK

NORMAL

MALFUNCTION

acxuuw00000135

DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC]

id011039801600
1. Remove the splash shield (RH).
2. Rotate the drive belt auto tensioner in the
direction shown in the figure and remove the drive
belt.
3. Install the drive belt.
4. Verify that the drive belt auto tensioner indicator
mark does not exceed the limit. (See01-10-3
DRIVE BELT INSPECTION[L3 WITH TC].)
5. Install the splash shield (RH).
End Of Sie
WM: DRIVE BELT AUTO TENSIONER

acxuuw00000136

01-10–3
1871-1U-06B(01-10).fm 4 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

DRIVE BELT AUTO TENSIONER INSPECTION[L3 WITH TC]
id011039801700
1. Remove the drive belt. (See01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
2. Verify that the drive belt auto tensioner moves
smoothly in the operational direction.
• Replace the drive belt auto tensioner if
necessary.
3. Rotate the drive belt auto tensioner pulley by
hand and verify that it rotates smoothly.
• Replace the drive belt auto tensioner if
necessary.
4. Install the drive belt. (See01-10-3 DRIVE BELT
REMOVAL/INSTALLATION[L3 WITH TC].) DRIVE BELT
End Of Sie AUTO TENSIONER
WM: ENGINE COMPLETE

acxuuw00000137

VALVE CLEARANCE INSPECTION/ADJUSTMENT[L3 WITH TC]

id011039800200
Valve Clearance Inspection
1. Disconnect the negative battery cable.
2. Remove the splash shield (RH).
3. Remove the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the high pressure fuel pump. (See01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
INSTALLATION[L3 WITH TC].)
5. Remove the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
6. Disconnect the wiring harness.
7. Remove the ventilation hose.
8. Remove the cylinder head cover. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
9. Measure the valve clearance.
(1) Rotate the crankshaft clockwise so that the No.1 cylinder is at TDC of the compression stroke.
(2) Measure the valve clearance of location A
A B A B
shown in the figure.

Standard valve clearance [Engine cold]

IN: 0.22— 0.28 mm {0.0087— 0.011 in} EX
EX: 0.27— 0.33 mm {0.011— 0.012 in} No.1 No.2 No.3 No.4

(3) If it is not within the specification, replace the IN

tappet and adjust the valve clearance to the
median value of the standard.
A A B B
Note
• Make sure to note down the measured
acxuuw00000156

values for choosing the suitable replacement

tappets.

(4) Rotate the crankshaft clockwise 360° so that the No.4 cylinder is at TDC of the compression stroke.
(5) Measure the valve clearance of location B shown in the figure.

Standard valve clearance [Engine cold]

IN: 0.22— 0.28 mm {0.0087— 0.011 in}
EX: 0.27— 0.33 mm {0.011— 0.012 in}

(6) If not within the specification, replace the tappet and adjust the valve clearance to the median value of the
standard.
10. Install the cylinder head cover. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
11. Install the ventilation hose.
12. Connect the wiring harness.
13. Install the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
14. Install the high pressure fuel pump. (See01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
INSTALLATION[L3 WITH TC].)
15. Install the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
16. Install the splash shield (RH).
17. Connect the negative battery cable.

01-10–4
1871-1U-06B(01-10).fm 5 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

Valve Clearance Adjustment
1. Disconnect the negative battery cable.
2. Remove the splash shield (RH).
3. Remove the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the high pressure fuel pump. (See01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
INSTALLATION[L3 WITH TC].)
5. Remove the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
6. Disconnect the wiring harness. 01-10
7. Remove the ventilation hose.
8. Remove the cylinder head cover. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
9. Remove the drive belt. (See01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
10. Remove the engine front cover lower blind plug.
11. Remove the engine front cover upper blind plug.

UPPER
BLIND
PLUG
LOWER BLIND
PLUG

acxuuw00000157

12. Remove the cylinder block lower blind plug, and

install the SST.
13. Rotate the crankshaft in the direction of the
engine rotation so that the No.1 piston is at TDC
of the compression stroke. (Until the crank weight
contacts SST and stops.)

303-507

acxuuw00000541

14. Release the tension on the timing chain shown in

the figure.
2

BOLT(M6 x 1.0)
3

acxuuw00000159

01-10–5
1871-1U-06B(01-10).fm 6 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

(1) Using a suitable screwdriver or equivalent tool, unlock the chain tensioner ratchet.
(2) Rotate the exhaust camshaft clockwise using a suitable wrench on the cast hexagon and loosen the
tension on the timing chain.
(3) Using a suitable bolt (M6 X 1.0 length
25mm— 35mm {0.99— 1.3 in}) at the engine
front cover upper blind plug, secure the RIB
tensioner arm at the position where the RIB
tension is released.

acxuuw00000160

15. Fix the exhaust camshaft using a wrench on the

cast hexagon, and loosen the camshaft sprocket
installation bolt.

acxuuw00000161

16. Remove the installation bolt and remove the

exhaust camshaft sprocket.
17. Remove the oil control valve (OCV). (See01-10-
29 OIL CONTROL VALVE (OCV) REMOVAL/
INSTALLATION[L3 WITH TC].)

EXHAUST
CAMSHAFT
SPROCKET

acxuuw00000162

18. Loosen the camshaft cap bolts in two or three

passes in the order shown in the figure and 1 3 5 4 2
remove the camshaft cap.

Note EX
• The camshaft caps are to be kept ordered No.1 No.2 No.3 No.4
for correct reassembly in their original
positions. Do not mix the caps. IN

19. Remove the camshafts for the intake and exhaust

sides. 2 4 6 5 3 1
20. Remove the tappet.
acxuuw00000163
21. Install an appropriate tappet based on the results
of the valve clearance inspection.
Selected tappet = Removed tappet thickness + Measured valve clearance - Standard valve clearance

Standard valve clearance [Engine cold]

IN: 0.22— 0.28 mm {0.0087— 0.011 in}
EX: 0.27— 0.33 mm {0.011— 0.012 in}

22. Install the camshaft with No.1 cylinder cam aligned at TDC of the compression stroke.

01-10–6
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
23. Carefully apply adhesive agent (Loctite 518 or
962) to the area indicated in the figure so that it
does not leak into the sliding part.

Thickness SEALANT

1.0 mm {0.039 in}

01-10

INTAKE REAR CAMSHAFT CAP

acxuuw00000164

24. Install the camshaft caps and temporarily tighten

5 3 1 2 4
the camshaft cap bolts evenly in two or three
passes, and then tighten the camshaft cap bolts
in two passes, using the following two steps and
in the order shown in the figure. EX

No.1 No.2 No.3 No.4

Tightening procedure
1. 5.0— 9.0 N·m {51— 91 kgf·cm, 45— 79 IN
in·lbf}
2. 14.0— 17.0 N·m {1.5— 1.7 kgf·m, 10.4—
12.5 ft·lbf
5 3 1 2 4 6
acxuuw00000165
25. Install the OCV. (See01-10-29 OIL CONTROL
VALVE (OCV) REMOVAL/INSTALLATION[L3
WITH TC].)
26. Install a new washer.

acxuuw00000166

27. Install the exhaust camshaft sprocket.

Caution
• Do not tighten the camshaft sprocket
installation bolt at this stage. Verify the
valve timing before performing the bolt
tightening.

EXHAUST
CAMSHAFT
SPROCKET

acxuuw00000162

Revised 3/2007 (Ref. No. R051/07) 01-10–7

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
28. Install the SST on the camshaft as shown in the
figure. 303-1061
29. Remove the installation bolt for the engine front (49 UN30 310610)
cover upper blind plug (M6 X 1.0 length 25—
35mm {0.99— 1.3 in}), and apply tension to the
timing chain.
30. Rotate the crankshaft clockwise and verify that
the No.1 cylinder is at TDC of the compression
stroke. (The position crank weight contacts the
SST.)

acxuuw00000167

31. Fix the exhaust camshaft using a wrench on the

cast hexagon, and tighten the sprocket installation
bolt.

Tightening torque
69— 75 N·m {7.1— 7.6 kgf·m, 51— 55 ft·lbf}

32. Remove the SST from the camshaft.

33. Remove the SST installed in the cylinder block
lower blind plug hole.
34. Rotate the crankshaft clockwise two turns and
inspect the valve timing.
• If it is not aligned, repeat the procedure.
acxuuw00002396

35. Apply the silicone sealant and install the engine

front cover upper blind plug.

Tightening torque
8.0— 11.5 N·m {82— 117 kgf·cm, 71— 101
in·lbf}
BLIND
PLUG

acxuuw00000168

36. Install the cylinder block lower blind plug.

Tightening torque
18— 22 N·m {1.9— 2.2 kgf·m, 14— 16 ft·lbf}

BLIND
PLUG

acxuuw00000169

37. Install a new engine front cover lower blind plug.

ENGINE FRONT
Tightening torque COVER LOWER
10.0— 14.0 N·m {102— 142 kgf·cm, 89— 123 BLIND PLUG
in·lbf}

38. Install the drive belt. (See01-10-3 DRIVE BELT

REMOVAL/INSTALLATION[L3 WITH TC].)
39. Install the cylinder head cover. (See01-10-10
TIMING CHAIN REMOVAL/INSTALLATION[L3
WITH TC].)
acxuuw00000170

01-10–8
1871-1U-06B(01-10).fm 9 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

40. Install the ventilation hose.
41. Connect the wiring harness.
42. Install the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
43. Install the high pressure fuel pump. (See01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
INSTALLATION[L3 WITH TC].)
44. Install the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
45. Install the splash shield (RH).
46. Connect the negative battery cable. 01-10
End Of Sie
COMPRESSION INSPECTION[L3 WITH TC]
id011039800300

Warning
• Hot engines can cause severe burns. Be careful not to burn yourself during removal/installation of
each component.
• Fuel vapor is hazardous. It can very easily ignite, causing death, serious injury, or damage. Always
keep sparks and flames away from fuel.

1. Verify that the battery is completely charged. (See01-17-2 BATTERY INSPECTION[L3 WITH TC].)
2. Warm up the engine.

Warning
• Fuel line spills and leakage from the pressurized fuel system are dangerous. Fuel can easily ignite
and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent
this, always perform the Fuel Line Safety Procedure. (See01-14-4 BEFORE REPAIR
PROCEDURE[L3 WITH TC].)

3. Remove the charge air cooler.

4. Remove the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
5. Remove all the spark plugs. (See01-18-3 SPARK PLUG REMOVAL/INSTALLATION[L3 WITH TC])
6. Remove the fuel pump relay. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
7. Remove the fuel injector relay.
8. Measure the compression pressure using the following procedure.
(1) Press the compression gauge into the spark
plug hole.
(2) Fully open the throttle valve.
(3) Crank the engine and measure the
compression pressure.

Compression
Standard: 1,280 kPa {13.1 kgf/cm2, 185.65
psi} [250rpm]
Minimum: 896 kPa {9.14 kgf/cm2, 129.96 psi}
[250rpm]
Maximum difference between cylinders: acxuuw00000151

196.1 kPa {2.0 kgf/cm2, 28.5 psi}

(4) Perform Steps (1) to (3) for all cylinders.

(5) If it is less than the minimum specification, or there is a cylinder with a compression value that differs from
that of other cylinders by 196.1 kPa or more {2.0 kgf/cm2, 28.5 psi}, add a small quantity of engine oil
through the spark plug hole and perform Steps (1) to (3).
• If the pressure increases by adding the engine oil, the piston ring or the cylinder surface is worn, or they
are damaged. Perform overhaul servicing.
• If the pressure does not increase, valve seizure, valve attachment failure, or pressure leakage from the
cylinder head gasket might be occurring. Perform overhaul servicing.
9. Install the fuel injector relay.
10. Install the fuel pump relay. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
11. Install the spark plugs. (See01-18-3 SPARK PLUG REMOVAL/INSTALLATION[L3 WITH TC])
12. Install the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
13. Install the charge air cooler.
End Of Sie
WM: TIMING CHAIN

01-10–9
1871-1U-06B(01-10).fm 10 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC]
id011039801000
1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Remove the splash shield.
4. Remove the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
5. Remove the high pressure fuel pump. (See01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
INSTALLATION[L3 WITH TC].)
6. Remove the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
7. Disconnect the wiring harness.
8. Remove the ventilation hose.
9. Remove the drive belt. (See01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
10. Remove the crankshaft position (CKP) sensor. (See01-40-42 CRANKSHAFT POSITION (CKP) SENSOR
REMOVAL/INSTALLATION[L3 WITH TC].)
11. Remove the P/S oil pump with the hoses and pipes still connected. (See06-14-21 POWER STEERING OIL
PUMP REMOVAL/INSTALLATION.)

Note
• Position and secure the P/S oil pump out of the way with a rope or wire.

12. Remove the bracket shown in the figure, and

place the power steering pressure hose outside of FRONT
the vehicle.
POWER STEERING
13. Remove in the order indicated in the figure. PRESSURE HOSE 7.8—10.8
14. Install in the reverse order of removal. {80—110,
15. Start the engine and inspect and adjust the 70—95 }
following:
(1) Engine oil amount (See01-11-3 ENGINE OIL
LEVEL INSPECTION[L3 WITH TC].)
(2) Runout and contact of pulley and belt.
(3) Ignition timing, idle speed, and idle mixture N·m {kgf·cm, in·lbf}
STEERING GEAR
(CO and HC) verification (See01-10-35
acxuuw00002076
ENGINE TUNE-UP[L3 WITH TC].)

01-10–10
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]

7.8—10.8 N·m {80—110

kgf·cm, 70—95 in·lbf}

74.5—104.9
SST {7.6—10.6,
55.0—77.3 }
6
8.0—9.5 N·m {82—96
kgf·cm, 71—84 in·lbf}
74.5—104.9 01-10
{7.6—10.6, 1
55.0—77.3 } SEALANT

7 8.0—11.5 N·m
40—55 {82—117 kgf·cm,
{4.1—5.6, 71—101 in·lbf}
30—40}
74.5—104.9
{7.6—10.6, 13
55.0—77.3 }

5
R
R
20—30 OIL

{2.1—3.0,
SST
15—22} 8
SEALANT

3
4

SEALANT

SEALANT
17—23
2 R SST {1.8—2.3, 13—16}
96—104 {9.8—10.6, 9
70.9—76.7}
+87°—93°

A
12 R
A : 8.0—11.5 N·m
{82—117 kgf·cm, SST
71—101 in·lbf}

10
16
19 14
15 20—30
18 {2.1—3.0,
A
15—22}
11 A
8.0—11.5 N·m
{82—117 kgf·cm, 17
71—101 in·lbf} N·m {kgf·m, ft·lbf}

acxuuw00002555

1 Cylinder head cover 9 Chain tensioner

(See01-10-12 Cylinder Head Cover Removal Note.) (See01-10-14 Chain Tensioner Removal Note.)
(See01-10-19 Cylinder Head Cover Installation Note.) 10 Tensioner arm
Crankshaft pulley lock bolt 11 Chain guide
(See01-10-12 Crankshaft Pulley Lock Bolt Removal 12 Timing chain
2 Note.) (See01-10-16 Timing Chain Installation Note.)
(See01-10-18 Crankshaft Pulley Lock Bolt Installation
Note.) 13 Oil jet
3 Crankshaft pulley 14 Oil pump chain tensioner
4 Water pump pulley 15 Oil pump chain guide
5 Front drive belt idler pulley 16 Oil pump driven sprocket
(See01-10-15 Oil Pump Driven Sprocket Removal
6 No. 3 engine mount Note.)
(See01-10-12 No.3 Engine Mount Removal Note.) (See01-10-16 Oil Pump Driven Sprocket Installation
(See01-10-17 No.3 Engine Mount Installation Note) Note.)
7 Engine front cover 17 Oil pump chain
(See01-10-17 Engine Front Cover Installation Note.)
18 Crankshaft sprocket
8 Front oil seal
(See01-10-14 Front Oil Seal Removal Note.) 19 Oil pump drive sprocket
(See01-10-16 Front Oil Seal Installation Note.) (See01-10-16 Oil Pump Driven Sprocket Installation
Note.)

Revised 11/2006 (Ref. No. R172/06) 01-10–11

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
Cylinder Head Cover Removal Note
1. Loosen the cylinder head cover bolts in the order
shown in the figure. 9 12 8 3
4
5 13 14

2
1

6
10 11 7
acxuuw00000219

Crankshaft Pulley Lock Bolt Removal Note

1. Rotate the crankshaft in the direction of the
engine rotation and remove the cylinder block
lower blind plug when the No. 1 cylinder is at the
point prior to top dead center (TDC) of
compression, then install the SST.
2. Rotate the crankshaft in the direction of the
engine rotation so that the No.1 piston is at TDC
of the compression stroke. (Until the crank weight
contacts SST and stops.)
303-507

acxuuw00000678

3. Install the SST to the crankshaft pulley and lock

the crankshaft against rotation.
205-07202

205-126

acxuuw00002077

No.3 Engine Mount Removal Note

1. Remove the windshield wiper arm and blade. (See09-19-3 WINDSHIELD WIPER ARM AND BLADE
REMOVAL/INSTALLATION.)
2. Remove the cowl grille. (See09-16-11 COWL GRILLE REMOVAL/INSTALLATION.)
3. Remove the air cleaner and air cleaner bracket. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
INSTALLATION[L3 WITH TC].)
4. To install the front shaft (RH) of the SST, remove
the clip shown the figure. COOLER PIPE

acxuuw00000222

01-10–12
1871-1U-06B(01-10).fm 13 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

5. Install the SST using the following procedure.

Caution
• Refer to the SST instruction manual for MAIN FRAME
the basic handing procedure.

REAR SHAFT
01-10
SIDE BAR

FRONT SHAFT

FRONT FOOT No.1

(ADAPTER FOR FRONT SHAFT)

FRONT FOOT No.2

(ADAPTER FOR FRONT SHAFT)
acxuuw00000223

(1) Install the right rear shaft of the SST to the

bolt of the right shock absorber as shown in
the figure.
(2) Install the left rear shaft of the SST to the bolt 49 C017 5A0 49 C017 5A0
of the left shock absorber. (Identical position
to the right side)

acxuuw00000224

(3) Temporarily tighten the bolt (M6 x 1.0) to the

air cleaner bracket installation position and LH
49 C017 5A0
install front foot No. 2 to the left/right front
shaft of the SST, and align the front shaft hole
of the SST with the bolt as shown in the
figure.
(4) Adjust the positions of the SST side bars so
that they are the same height (left and right)
and horizontal.
(5) Make sure each joint is securely tightened. RH

acxuuw00000225

01-10–13
1871-1U-06B(01-10).fm 14 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

6. Support the engine using the SST.
49 C017 5A0

acxuuw00000226

Front Oil Seal Removal Note

1. Remove the front oil seal using a flathead
screwdriver or similar tool.

acxuuw00000227

Chain Tensioner Removal Note

1. Press the timing chain tensioner ratchet to the left
using a thin flathead screwdriver (precision
screwdriver) to unlock the plunger. RATCHET

PLUNGER

acxuuw00000228

2. Slowly press the plunger back in the direction

shown in the figure while pressing the ratchet.

RATCHET

acxuuw00000229

01-10–14
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
3. Release the ratchet with the plunger still pressed
down.
RATCHET

01-10

acxuuw00000230

4. Press-in the plunger until the ratchet position is as

indicated in the figure, and then insert the wire to RATCHET
lock the plunger.

WIRE INSERTION
HOLE

acxuuw00000231

Oil Pump Driven Sprocket Removal Note

1. Temporarily install the crankshaft pulley and
crankshaft pulley lock bolt to the crankshaft, and
lock the oil pump against rotation as shown in
figure.
2. Remove the oil pump driven sprocket, and then
remove the crankshaft pulley and crankshaft
pulley lock bolt.

CRANKSHAFT OIL PUMP DRIVEN

PULLEY SPROCKET
acxuuw00002573

Oil Pump Drive Sprocket Installation Note

1. The oil pump drive sprocket has the assembly
direction as shown in the figure. OIL PUMP DRIVE SPROCKET

ENGINE FRONT

CRANKSHAFT SPROCKET

acxuuw00000233

Revised 11/2006 (Ref. No. R172/06) 01-10–15

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
Oil Pump Driven Sprocket Installation Note
1. Temporarily install the crankshaft pulley and
crankshaft pulley lock bolt to the crankshaft, and
lock the oil pump against rotation as shown in
figure.
2. Install the oil pump driven sprocket, and then
remove the crankshaft pulley and crankshaft
pulley lock bolt.

Tightening torque
20—30 N·m {2.1—3.0 kgf·m, 15—22 ft·lbf}
CRANKSHAFT OIL PUMP DRIVEN
PULLEY SPROCKET
acxuuw00002573

Timing Chain Installation Note

1. Install the SST to the camshaft as shown in the
figure. 303-1061
2. Install the timing chain. (49 UN30 310610)
3. Remove the wire or paper clip from the chain
tensioner piston and apply tension to the timing
chain.

acxuuw00000234

Front Oil Seal Installation Note

1. Apply clean engine oil to a new front oil seal.
2. Push the front oil seal in the engine front cover by hand.
3. Use the SST to tap in the front oil seal.

49 H010 401

acxuuw00000235

HAMMER FRONT COVER BODY

Front oil seal press-in amount
0— 0.5 mm {0— 0.019 in} 0—0.5 mm
{0—0.019 in}

49 H010 401
FRONT OIL SEAL
acxuuw00000236

01-10–16 Revised 11/2006 (Ref. No. R172/06)

1871-1U-06B(01-10).fm 17 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

Engine Front Cover Installation Note
1. Apply silicone sealant to the engine front cover.

Caution
• Install the engine front cover within 10 min of applying the silicone sealant.
• Silicone sealant is not needed in area C
shown in the figure. B
01-10
Thickness
A: 2.2— 3.2 mm {0.087— 0.12 in}
B: 1.5— 2.5 mm {0.06— 0.098 in}

C B

acxuuw00000237

2. Tighten the engine front cover installation bolts in

the order shown in the figure. 20 21 22
Installation 18
Tightening Torque
Position
8.0— 11.5 N·m {82— 117 kgf·cm, 71— 17
118
101 in·lbf} 11
40— 55 N·m {4.1— 5.6 kgf·m, 30— 40 10
1922
ft·lbf}
7 8
4
3 1
5
2
19
6

9 12

13
16
15 14
acxuuw00000238

No.3 Engine Mount Installation Note

1. Tighten the No.3 engine mount stud bolts.

Tightening torque
7.0— 13 N·m {72— 132 kgf·cm, 62— 115
in·lbf}
No.3 ENGINE
Note MOUNT
• If the No.3 engine joint bracket and the BRACKET
engine are removed, retighten the No.3 STUD BOLT
engine mount stud bolt

acxuuw00000239

01-10–17
1871-1U-06B(01-10).fm 18 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

2. Temporarily tighten the bolts and nuts in the order
2
shown in the figure.
4

3 5
1
FRONT
acxuuw00000241
3. Tighten the bolts and nuts in the order shown in
the figure. 4

Tightening torque 1
74.5— 104.9 N·m {7.6— 10.6 kgf·m, 55.0—
77.3 ft·lbf}

5 2

FRONT
3
acxuuw00000242

Crankshaft Pulley Lock Bolt Installation Note

1. Install the SST to the camshaft as shown in the
figure. 303-1061
2. Verify that cylinder No.1 is at TDC of the (49 UN30 310610)
compression stroke. (Position crank weight
contacts SST.)

acxuuw00000234
3. To position the crankshaft pulley, temporarily
tighten it and, using a suitable bolt (M6 X 1.0
length 25— 35 mm {0.99— 1.3 in}), fix the
crankshaft pulley to the engine front cover.

BOLT

acxuuw00000243
4. Install theSSTs to the crankshaft pulley, lock the
crankshaft against rotation, and tighten the
crankshaft pulley lock bolt using the following two 205-07202
steps.

Tightening procedure
(1) 96— 104 N·m {9.8— 10.6 kgf·m, 70.9—
76.7 ft·lbf}
(2) 87°— 93°
205-126

acxuuw00002077

01-10–18
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
5. Remove the bolt (M6 X 1.0 length 25— 35 mm {0.99— 1.3 in}) installed to the crankshaft pulley.
6. Remove the SST from the camshaft.
7. Remove the SST installed in the cylinder block lower blind plug hole.
8. Rotate the crankshaft clockwise two turns and inspect the valve timing.
• If not aligned, repeat from Step 1.
9. Install the cylinder block lower blind plug.

Tightening torque 01-10

18— 22 N·m {1.9— 2.2 kgf·m, 14— 16 ft·lbf}

BLIND
PLUG

acxuuw00000244

Cylinder Head Cover Installation Note

1. Apply silicone sealant to the areas shown in the
figure.
SEALANT

SEALANT

acxuuw00000245

Thickness
5.0 mm {0.20 in}
SEALANT

SEALANT

acxuuw00000246

2. Tighten the cylinder head cover bolts in the order

shown in the figure. 6 3 7 12
11
Tightening torque 10 2 1
8.0—9.5 N·m {82—96 kgf·cm, 71—84 in·lbf}
13
End Of Sie
WM: CYLINDER HEAD GASKET 14

9
5 4 8
acxuuw00000247

Revised 9/2006 (Ref. No. R115/06) 01-10–19

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
CYLINDER HEAD GASKET REPLACEMENT[L3 WITH TC]
id011039800700

Warning
• Fuel vapor is hazardous. It can very easily ignite, causing death, serious injury, or damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage from the pressurized fuel system are dangerous. Fuel can easily ignite
and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent
this, always perform the Fuel Line Safety Procedure. (See01-14-4 BEFORE REPAIR
PROCEDURE[L3 WITH TC].)

1. Remove the timing chain. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
2. Remove the generator. (See 01-17-4 GENERATOR REMOVAL/INSTALLATION[L3 WITH TC].)

Note
• Place the generator out of the way with the wiring harnesses connected.

3. Remove the exhaust manifold. (See 01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the intake manifold. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
5. Disconnect the heater hose and radiator hose.
6. Disconnect the wiring harness.
7. To firmly support the engine, first set the engine ENGINE, TRANSAXLE
jack and attachment to the oil pan.
8. Remove in the order indicated in the figure.
9. Install in the reverse order of removal.
10. Bleed the air from the cooling system. (See01-12- ATTACHMENT
5 ENGINE COOLANT REPLACEMENT[L3 WITH
TC].)
11. Inspect the compression pressure. (See01-10-9
COMPRESSION INSPECTION[L3 WITH TC].)

ENGINE JACK
acxuuw00000249

01-10–20
1871-1U-06B(01-10).fm 21 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

8.0—11.5 N·m {82—117 5.0—9.0 N·m {51—91 kgf·cm, 45—79 in·lbf}

+14—17 {1.5—1.7, 11—12}
kgf·cm, 71—101 in·lbf}

SEALANT

01-10
1

OIL 2

3.0—11 N·m {31—112 kgf·cm, 27—97 in·lbf}

+13—17 N·m {133—173 kgf·cm, 116—150 in·lbf}
+43—47 {4.4—4.7, 32—34}
+88°—92°
+88°—92°

R 4

N·m {kgf·m, ft·lbf}

acxuuw00000250

1 OCV 3 Cylinder head

(See01-10-22 Cylinder Head Removal Note.)
2 Camshaft
(See01-10-22 Cylinder Head Installation Note.)
(See01-10-22 Camshaft Removal Note.)
(See01-10-23 Camshaft Installation Note.) 4 Cylinder head gasket

01-10–21
1871-1U-06B(01-10).fm 22 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

Camshaft Removal Note

Note
• The camshaft caps are to be kept ordered for correct reassembly in their original positions.

1. Loosen the camshaft cap bolts in two or three

passes in the order shown, and remove them. 1 3 5 4 2

EX

No.1 No.2 No.3 No.4

IN

2 4 6 5 3 1
acxuuw00000251

Cylinder Head Removal Note

1. Loosen the cylinder head installation bolts in two
to three passes in the order shown in the figure 3 7 10 6 2
and remove them.

4 8 9 5 1
acxuuw00000252

Cylinder Head Installation Note

1. Measure the length of each cylinder head bolt.
• Replace any cylinder head bolts that exceed
the maximum length.

Cylinder head bolt length

Standard: 144.7— 145.3 mm {5.697— 5.720
in}
Maximum: 146 mm {5.74 in} L

acxuuw00000253

Tightening procedure 8 4 1 5 9
1. 3.0— 11 N·m {31— 112 kgf·cm, 27— 97
in·lbf}
2. 13— 17 N·m {133— 173 kgf·cm, 116— 150
in·lbf}
3. 43— 47 N·m {4.4— 4.7 kgf·m, 32— 34 ft·lbf}
4. 88°— 92°
5. 88°— 92°

7 3 2 6 10
acxuuw00000254

01-10–22
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
Camshaft Installation Note
1. Install the camshaft with No.3 cylinder cam aligned at TDC of compression stroke.
2. Carefully apply adhesive agent (Loctite 518 or
962) to the area indicated in the figure so that it
does not leak into the sliding part.

Thickness SEALANT

1.0 mm {0.039 in} 01-10

INTAKE REAR CAMSHAFT CAP

acxuuw00000255

3. Install the camshaft caps and temporarily tighten

the camshaft cap bolts evenly in two or three 5 3 1 2 4
passes, and then tighten the camshaft cap bolts
using the following two steps, in the order shown
in the figure. EX

No.1 No.2 No.3 No.4

Tightening procedure
1. 5.0— 9.0 N·m {51— 91 kgf·cm, 45— 79 IN
in·lbf}
2. 14— 17 N·m {1.5— 1.7 kgf·m, 11— 12 ft·lbf}
5 3 1 2 4 6
End Of Sie
WM: FRONT OIL SEAL acxuuw00000256

FRONT OIL SEAL REPLACEMENT[L3 WITH TC]

id011039800800
1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Remove the splash shield (RH).
4. Remove the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
5. Remove the high pressure fuel pump. (See 01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
INSTALLATION[L3 WITH TC].)
6. Remove the drive belt. (See01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
7. Remove the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
8. Disconnect the wiring harness.
9. Remove the ventilation hose.
10. Remove cylinder head cover. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
11. Remove the crankshaft position (CKP) sensor. (See01-40-42 CRANKSHAFT POSITION (CKP) SENSOR
REMOVAL/INSTALLATION[L3 WITH TC].)
12. Remove the bracket shown in the figure, and
place the power steering pressure hose outside of FRONT
the vehicle.
13. Remove in the order indicated in the figure. POWER STEERING
7.8—10.8
PRESSURE HOSE
14. Install in the reverse order of removal. {80—110,
70—95 }

STEERING GEAR N·m {kgf·cm, in·lbf}

acxuuw00002078

Revised 3/2007 (Ref. No. R051/07) 01-10–23

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]

2 R
R
SST
1 3
R SST

OIL

96—104 {9.8—10.6 , 70.9—76.7} +87˚—93˚ N·m { kgf·m, ft·lbf}

acxuuw00002584

1 Crankshaft pulley lock bolt 2 Crankshaft pulley

(See01-10-24 Crankshaft Pulley Lock Bolt Removal 3 Front oil seal
Note.) (See01-10-25 Front Oil Seal Removal Note.)
(See01-10-25 Crankshaft Pulley Lock Bolt Installation (See01-10-25 Front Oil Seal Installation Note.)
Note.)

Crankshaft Pulley Lock Bolt Removal Note

1. Rotate the crankshaft in the direction of the
engine rotation and remove the cylinder block
lower blind plug when the No. 1 cylinder is at the
point prior to top dead center (TDC) of
compression, then install the SST.
2. Rotate the crankshaft in the direction of the
engine rotation so that the No.1 piston is at TDC
of the compression stroke. (Until the crank weight
contacts SST and stops.)
303-507

acxuuw00001897

3. Install the SSTs to the crankshaft pulley and lock

the crankshaft against rotation.
205-07202

205-126

acxuuw00002079

01-10–24
1871-1U-06B(01-10).fm 25 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

Front Oil Seal Removal Note
1. Remove the oil seal lip using a razor.
2. Remove the oil seal using a flathead screwdriver
with the tip protected by a rag to prevent
crankshaft oil seal damage.
FRONT OIL SEAL

01-10

RAG
acxuuw00000199

Front Oil Seal Installation Note

1. Apply clean engine oil to a new oil seal.
2. Insert the oil seal into the engine front cover.
3. Tap in the oil seal using the SST.

49 H010 401

acxuuw00000200

HAMMER FRONT COVER BODY

Front oil seal press-in amount
0— 0.5 mm {0— 0.019 in} 0—0.5 mm
{0—0.019 in}

49 H010 401
FRONT OIL SEAL
acxuuw00000201

Crankshaft Pulley Lock Bolt Installation Note

1. Install the SST to the camshaft as shown in the
figure. 303-1061
2. Verify that cylinder No.1 is at TDC of the (49 UN30 310610)
compression stroke. (Position crank weight
contacts SST.)

acxuuw00000202

01-10–25
1871-1U-06B(01-10).fm 26 ページ ２００６年３月１５日 水曜日 午前１０時３９分

MECHANICAL [L3 WITH TC]

3. To position the crankshaft pulley, temporarily
tighten it and, using a suitable bolt (M6 x 1.0), fix
the crankshaft pulley to the engine front cover.

BOLT

acxuuw00000203

4. Install the SSTs to the crankshaft pulley and lock

the crankshaft against rotation, and tighten the
crankshaft pulley lock bolt using the following two 205-07202
steps.

Tightening procedure
(1) 96— 104 N·m {9.8— 10.6 kgf·m, 70.9—
76.7 ft·lbf}
(2) 87°— 93°

5. Remove the crankshaft pulley installation bolt (M6 205-126

X 1.0).
acxuuw00002079
6. Remove the SST from the camshaft.
7. Remove the SST installed in the cylinder block
lower blind plug hole.
8. Rotate the crankshaft clockwise two turns and inspect the valve timing.
• If not aligned, repeat from Step 1.
9. Install the cylinder block lower blind plug.

Tightening torque
18— 22 N·m {1.9— 2.2 kgf·m, 14— 16 ft·lbf}

End Of Sie
WM: REAR OIL SEAL
BLIND
PLUG

acxuuw00000204

REAR OIL SEAL REPLACEMENT[L3 WITH TC]

id011039800900
1. Remove the drive plate. (See 05-17-52 DRIVE PLATE REMOVAL/INSTALLATION[AW6A-EL, AW6AX-EL].)
2. Remove in the order indicated in the figure.
3. Install in the reverse order of removal. 8.0—11.5
1 Bolt {82—117,
71—101}
2 Rear oil seal
(See01-10-27 Rear Oil Seal Installation Note.) 1

1
8.0—11.5
OIL
{82—117, R SST
71—101} 2
N·m {kgf·cm, in·lbf}
acxuuw00000146

01-10–26
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
Rear Oil Seal Installation Note
1. Apply silicone sealant to the areas shown in the
figure.

Caution
• Install the rear oil seal within 10 min of
applying the silicone sealant.
01-10
Thickness
4.0— 6.0 mm {0.16— 0.23 in}
SEALANT

2. Apply clean engine oil to a new rear oil seal.

acxuuw00000147

3. Install the SST to the non-woven fabric side of the

rear oil seal. NON-WOVEN FABRIC
303-328
(49 UN30 3328)

acxuuw00002559
4. From the back side of the rear oil seal, verify that BACK SIDE OF REAR OIL SEAL
there is no damage or separation in the lip area of
the rear oil seal. LIP AREA

acxuuw00002560
5. Install the rear oil seal to the engine as shown in
the figure.

acxuuw00002561

6. Tighten the rear oil seal installation bolts in the

order shown in the figure. 3
5
Tightening torque
8.0— 11.5 N·m {82— 117 kgf·cm, 71— 101
in·lbf}
1
End Of Sie
WM: VARIABLE VALVE TIMING ACTUATOR

2 4
acxuuw00000149

Revised 9/2006 (Ref. No. R115/06) 01-10–27

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
VARIABLE VALVE TIMING ACTUATOR INSPECTION[L3 WITH TC]
id011039801200

Caution
• Due to the precision interior construction of the variable valve timing actuator, it cannot be
disassembled.
1. Disconnect the negative battery cable.
2. Remove the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the spark plugs. (See01-18-3 SPARK PLUG REMOVAL/INSTALLATION[L3 WITH TC].)
5. Disconnect the wiring harness.
6. Remove the ventilation hose.
7. Remove cylinder head cover. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
8. Verify that the groove of the rotor and notch of the
cover on the variable valve timing actuator are
aligned and fitted.
• If they are not aligned, rotate the crankshaft in
the direction of engine rotation two times and NOTCH
verify that they are aligned.
— If they will not align, replace the variable
valve timing actuator.
• If under any condition, the variable valve
timing actuator always makes a hitting noise
directly after the camshaft exceeds maximum
lift while rotating the crankshaft two times in
the direction of engine rotation, replace the acxuuw00000143
variable valve timing actuator as it has not
been fixed.
9. Install the cylinder head cover. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
10. Install the ventilation hose.
11. Connect the wiring harness.
12. Install the spark plugs. (See01-18-3 SPARK PLUG REMOVAL/INSTALLATION[L3 WITH TC].)
13. Install the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
14. Install the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
15. Connect the negative battery cable.
End Of Sie
VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION[L3 WITH TC]
id011039801100

Caution
• Remove the variable valve timing actuator and camshaft sprocket as a single unit.

Note
• The variable valve timing actuator and camshaft sprocket cannot be disassembled.

1. Referring to the valve clearance adjustment procedure, remove the variable valve timing actuator and the
camshaft on the intake air side as a single unit. (See01-10-4 VALVE CLEARANCE INSPECTION/
ADJUSTMENT[L3 WITH TC].)
2. Remove the variable valve timing actuator.
(1) Place alignment marks on the camshaft and variable valve timing actuator as shown in the figure so that the
variable valve timing actuator is re-assembled in its original position.
(2) Fix the camshaft in a vise.
(3) Loosen the variable valve timing actuator
installation bolt.
End Of Sie

MARK

acxuuw00000144

01-10–28
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]
01-10-28 MECHANICAL [L3 WITH TC]

3. Install a new washer.

4. Install the variable valve timing actuator.
(1) Fix the camshaft in a vise.
(2) Align the marks on the camshaft and the
variable valve timing actuator.

Caution
• If replacing with a new variable valve R 01–10
timing actuator, place alignment marks in
the same positions as those prior to the
replacement.
acxuuw00000145
(3) Tighten the variable valve timing actuator
installation bolt.

Tightening torque
69— 75 N·m {7.1— 7.6 kgf·m, 51— 55 ft·lbf}

5. Referring to the valve clearance adjustment procedure, install the variable valve timing actuator and camshaft
on the intake air side as a single unit. (See01-10-4 VALVE CLEARANCE INSPECTION/ADJUSTMENT[L3
WITH TC].)
End Of Sie

01-10-28–1
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
MECHANICAL [L3 WITH TC]

THIS PAGE INTENTIONALLY

LEFT BLANK

01-10-28–2
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MECHANICAL [L3 WITH TC]

OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION[L3 WITH TC]
id011039801300
1. Disconnect the negative battery cable.
2. Remove the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the ignition coils. (See01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
4. Disconnect the wiring harness.
5. Remove the ventilation hose.
6. Remove the cylinder head cover. (See01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
7. Remove in the order indicated in the table. 01-10
8. Install in the reverse order of removal.
8.0—11.5 {82—117,
1
1 OCV 71—101}

Tightening torque
8.0— 11.5 N·m {82— 117 kgf·cm, 71— 101
in·lbf}

End Of Sie

N·m {kgf·cm, in·lbf}

acxuuw00000138

OIL CONTROL VALVE (OCV) INSPECTION[L3 WITH TC]

id011039801400
Coil Resistance Inspection
1. Disconnect the negative battery cable.
2. Disconnect the OCV connector.
3. Measure the coil resistance between terminals A
and B using a tester.
• If it is not within the specification, replace the
OCV.
A B
OCV resistance
6.9— 7.9 ohms [20°C {68°F}]

4. Connect the OCV connector.

5. Connect the negative battery cable.

acxuuw00000139

Spool Valve Operation Inspection

1. Disconnect the negative battery cable.
2. Disconnect the OCV connector.
3. Remove the OCV. (See01-10-29 OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION[L3 WITH TC].)
4. Verify that the spool valve in the OCV is in the
maximum valve timing retard position as indicated
in the figure.
• If not as specified, replace the OCV.
5. Verify that the battery is fully charged.
• If not as specified, recharge the battery.

SPOOL VALVE
(MAXIMUM VALVE TIMING RETARD POSITION

acxuuw00000140

01-10–29
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MECHANICAL [L3 WITH TC]

6. Apply battery positive voltage between the OCV
terminals and verify that the spool valve operates
and moves to the maximum valve timing advance
position.
• If not as specified, replace the OCV. A B

acxuuw00000139

Note
• When applying battery positive voltage
between the OCV terminals, the connection
VALVE TIMING VALVE TIMING
can be either of the following:
ADVANCE RETARD
— Positive battery cable to terminal A,
Negative battery cable to terminal B
— Positive battery cable to terminal B,
Negative battery cable to terminal A

SPOOL VALVE
(MAXIMUM VALVE TIMING ADVANCE POSITION)

acxuuw00000142

7. Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing retard
position.
• If not as specified, replace the OCV. (See01-10-29 OIL CONTROL VALVE (OCV) REMOVAL/
INSTALLATION[L3 WITH TC].)
8. Connect the OCV connector.
9. Connect the negative battery cable.
End Of Sie
WM: ENGINE COMPLETE

01-10–30
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MECHANICAL [L3 WITH TC]

ENGINE REMOVAL/INSTALLATION[L3 WITH TC]
id011039800400

Warning
• Fuel vapor is hazardous. It can very easily ignite, causing death, serious injury, or damage. Always
keep sparks and flames away from fuel.'
• Fuel line spills and leakage from the pressurized fuel system are dangerous. Fuel can easily ignite
and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent
this, always perform the Fuel Line Safety Procedure. (See01-14-4 BEFORE REPAIR 01-10
PROCEDURE[L3 WITH TC].)

1. Disconnect both battery cable.

2. Remove the battery and battery tray. (See01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the charge air cooler duct. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
4. Remove the air cleaner. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
5. Remove the front tire. (See02-12-4 WHEEL UNIT REMOVAL/INSTALLATION.
6. Remove the under cover, splash shield and mudguard.
7. Remove the drive belt. (See01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
8. Disconnect the heater hose. (See07-11-2 A/C UNIT REMOVAL/INSTALLATION.
9. Disconnect the radiator hose. (See01-12-8 RADIATOR REMOVAL/INSTALLATION[L3 WITH TC].
10. Disconnect the brake vacuum hose.
11. Disconnect the fuel hose and vacuum hose. (See 01-14-19 QUICK RELEASE CONNECTOR REMOVAL/
INSTALLATION[L3 WITH TC].)
12. Disconnect the selector cable from the transaxle side. (See05-18-7 SELECTOR LEVER COMPONENT
REMOVAL/INSTALLATION.)
13. Disconnect the wiring harnesses.
14. Drain the engine coolant (See01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
15. Drain the automatic transaxle fluid (ATF). (See05-17-11 AUTOMATIC TRANSAXLE FLUID (ATF)
REPLACEMENT[AW6A-EL, AW6AX-EL].)
16. Remove the propeller shaft (AWD). (See03-15-3 PROPELLER SHAFT REMOVAL/INSTALLATION.)
17. Remove the front pipe and rear HO2S. (See01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
18. Disconnect the front drive shaft (RH) from the joint shaft side. (See03-13-12 FRONT DRIVE SHAFT
REMOVAL/INSTALLATION.)
19. Disconnect the front drive shaft (LH) from the transaxle side. (See03-13-12 FRONT DRIVE SHAFT REMOVAL/
INSTALLATION.)
20. Remove the A/C compressor with the pipes still connected. (See07-11-13 A/C COMPRESSOR REMOVAL/
INSTALLATION.)

Note
• Position and secure the A/C compressor out of the way with rope.

21. Remove in the order indicated in the figure.

22. Install in the reverse order of removal.
23. Start the engine, and inspect and adjust the following:
• Air bleeding (See 06-14-3 AIR BLEEDING.)
• Front wheel alignment (See 02-11-2 FRONT WHEEL ALIGNMENT.)
• Bleed the air from the cooling system. (See01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
• Runout and contact on pulley and belt
• Leakage of engine oil, engine coolant, automatic transmission fluid, or fuel.
• Ignition timing, idle speed and idle mixture (CO and HC)
• Engine accessories operation
24. Perform a road test and verify that there is no abnormal vibration or noise.

01-10–31
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MECHANICAL [L3 WITH TC]

25.

74.5—104.9 {7.6—10.6, 55.0—77.3}

66.6—93.1 {6.8—9.4,
2 50—68}
66.6—93.1
{6.8—9.4,
50—68}

74.5—104.9
{7.6—10.6,
55.0—77.3}

1
B
A

93.1—116.6 {9.5—11.8, 68.7—85.9}

B
A
85.3—116.6
{8.7—11.8,
63.0—85.9}

N·m {kgf·m, ft·lbf}

acxuuw00000185

1 No.1 engine mount 3 No.3 engine mount rubber

(See01-10-33 No.1 Engine Mount Removal Note.) (See01-10-33 No.3 Engine Mount Rubber, No.4
(See01-10-33 Engine Mount Installation Note.) Engine Mount Bracket Removal Note.)
(See01-10-33 Engine Mount Installation Note.)
2 No.4 engine mount bracket
(See01-10-33 No.3 Engine Mount Rubber, No.4 4 Engine and transaxle
Engine Mount Bracket Removal Note.)
(See01-10-33 Engine Mount Installation Note.)

01-10–32
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MECHANICAL [L3 WITH TC]

No.1 Engine Mount Removal Note
1. Remove the No.1 engine mount bracket from the
underside of the vehicle.

FRONT

01-10

No.1 ENGINE MOUNT BRACKET

acxuuw00000186

2. Remove the No.1 engine mount rubber and the

front crossmember as a single unit. (See02-13-10
FRONT CROSSMEMBER REMOVAL/
INSTALLATION.)

No.1 ENGINE
MOUNT RUBBER

acxuuw00000187

No.3 Engine Mount Rubber, No.4 Engine Mount Bracket Removal Note
1. Secure the engine and transaxle using an engine ENGINE, TRANSAXLE
jack and attachment.

ATTACHMENT

ENGINE JACK
acxuuw00000188

Engine Mount Installation Note

1. Tighten the No. 3 engine mount stud bolt.

Tightening torque
7.0— 13 N·m {72— 132 kgf·cm, 62— 115
in·lbf}
No.3 ENGINE
MOUNT
BRACKET
STUD BOLT

acxuuw00000189

01-10–33
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MECHANICAL [L3 WITH TC]

2. Tighten the No.1 engine mount bracket in the
order shown in the figure.

Tightening torque
93.1— 116.6 N·m {9.5— 11.8 kgf·m, 68.7—
FRONT
85.9 ft·lbf}

2
1

acxuuw00000190

3. Secure the engine and transaxle using an engine ENGINE, TRANSAXLE

jack and attachment.

ATTACHMENT

ENGINE JACK
acxuuw00000188

4. Temporarily tighten the No.3 engine mount nuts in

the order shown in the figure.
1

FRONT
acxuuw00000191

5. Tighten the No.3 engine mount nuts in the order

shown in the figure.
1
Tightening torque
74.5— 104.9 N·m {7.6— 10.6 kgf·m, 55.0—
77.3 ft·lbf}

FRONT
acxuuw00000191

6. Temporarily tighten the No.4 engine mount

bracket in the order shown in the figure. 4

2 FRONT
1
acxuuw00000192

01-10–34
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MECHANICAL [L3 WITH TC]

7. Tighten the No.4 engine mount bracket in the
order shown in the figure. 3
Tightening torque
Installation
Tightening Torque
Position
66.6— 93.1 N·m {6.8— 9.4 kgf·m, 50— 1
13
68 ft·lbf} 01-10
74.5— 104.9 N·m {7.6— 10.6 kgf·m,
4
55.0— 77.3 ft·lbf}
2 FRONT
4
acxuuw00000193

8. Tighten the No.1 engine mount bolt A shown in

the figure

Tightening torque
85.3— 116.6 N·m {8.7— 11.8 kgf·m, 63.0— FRONT
85.9 ft·lbf}

End Of Sie

acxuuw00000194

ENGINE DISASSEMBLY/ASSEMBLY[L3 WITH TC]

id011039800500
1. Remove the engine from the transaxle. (See05-17-29 AUTOMATIC TRANSAXLE REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
2. Remove the intake-air system. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the exhaust system. (See01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the generator. (See01-17-4 GENERATOR REMOVAL/INSTALLATION[L3 WITH TC].)
5. Remove the starter. (See01-19-2 STARTER REMOVAL/INSTALLATION[L3 WITH TC].)
6. Remove the crankshaft position (CKP) sensor. (See01-40-42 CRANKSHAFT POSITION (CKP) SENSOR
REMOVAL/INSTALLATION[L3 WITH TC].)
7. Install in the reverse order of removal.
End Of Sie
ENGINE TUNE-UP[L3 WITH TC]
id011039800600

Note
• If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to
the idle speed. This is due to the fuel cut control operation, which prevents overheating, and it does not
indicate a malfunction.

Engine Tune-up Preparation

1. Verify that the selector lever is in P, N position.
2. Connect the M-MDS to the DLC-2.
3. Verify that no DTCs are available.
4. Warm up the engine (ECT is approx. 80°C {176
°F} or more).
5. Turn off the electrical loads.
6. Wait until the cooling fans stop.

DLC-2
acxuuw00000150

01-10–35
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MECHANICAL [L3 WITH TC]

Ignition Timing Inspection

Note
• The ignition timing cannot be adjusted.
• The M-MDS is required to verify the ignition timing.

1. Verify the ignition timing (M-MDS: SPARKADV) using the PID/data monitor function of the M-MDS.

Ignition timing
Approx. BTDC 10°

2. Verify that ignition timing advances when the engine speed increases gradually.
• If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See01-03-5 ENGINE
SYMPTOM TROUBLESHOOTING[L3 WITH TC].)

Idle Speed Inspection

Note
• Idle speed is not adjustable.
• Idle speed verification requires M-MDS.

1. Verify that the idle speed (M-MDS: RPM PID) is within the specification using M-MDS.
• If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See01-03-5 ENGINE
SYMPTOM TROUBLESHOOTING[L3 WITH TC].)

Idle speed (P, N position)

No load: 650— 750 rpm
Electrical load on*1: 650— 750 rpm
P/S operation: 650— 750 rpm
A/C operation: 650— 750 rpm

Idle speed (D position)

No load: 575— 675 rpm
Electrical load on*1: 600— 700 rpm
P/S operation: 650— 750 rpm
A/C operation: 650— 750 rpm

*1 : When the following electrical loads are on: Headlights, rear defroster, cooling fan No.1, cooling fan No.2, and
the blower motor (2-step or more.)

Idle Mixture Inspection

1. Verify that the idle speed and ignition timing are within the specification. (See01-10-36 Idle Speed Inspection.)
(See01-10-36 Ignition Timing Inspection.)
2. Insert an exhaust gas analyzer to the tailpipe.
3. Verify that the CO and HC concentrations are within the regulation.

Idle mixture
HC concentration: Within the regulation
CO concentration: Within the regulation

End Of Sie

01-10–36
1871-1U-06B(01-11).fm 1 ページ ２００６年３月１５日 水曜日 午前１０時４２分

LUBRICATION [L3 WITH TC]

01-11 LUBRICATION [L3 WITH TC]
LUBRICATION SYSTEM OIL COOLER REMOVAL/INSTALLATION
LOCATION INDEX[L3 WITH TC] . . . . . 01-11–1 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-11–6
OIL PRESSURE INSPECTION OIL PAN REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-11–2 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-11–6
ENGINE OIL LEVEL INSPECTION Oil Pan Removal Note . . . . . . . . . . . . . . 01-11–7
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-11–3 Oil Pan Installation Note . . . . . . . . . . . . 01-11–8 01-11
ENGINE OIL REPLACEMENT OIL PUMP REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-11–4 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-11–9
OIL FILTER REPLACEMENT Oil Pump Sprocket
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-11–5 Removal/Installation Note . . . . . . . . . . 01-11–10
Oil Pump Installation Note. . . . . . . . . . . 01-11–10

End of Toc
LUBRICATION SYSTEM LOCATION INDEX[L3 WITH TC]
WM: LUBRICATION SYSTEM

id011139800100

2
7 6

OIL PAN DRAIN PLUG

WASHER

acxuuw00001987

1 Dipstick 4 Oil cooler

(See 01-11-3 ENGINE OIL LEVEL INSPECTION[L3 (See 01-11-6 OIL COOLER REMOVAL/
WITH TC].) INSTALLATION[L3 WITH TC].)
(See 01-11-4 ENGINE OIL REPLACEMENT[L3 5 Oil pan
WITH TC].) (See 01-11-6 OIL PAN REMOVAL/
2 Oil pressure switch INSTALLATION[L3 WITH TC].)
(See 01-11-2 OIL PRESSURE INSPECTION[L3 6 Oil strainer
WITH TC].) (See 01-11-9 OIL PUMP REMOVAL/
3 Oil filter INSTALLATION[L3 WITH TC].)
(See 01-11-4 ENGINE OIL REPLACEMENT[L3 7 Oil pump component
WITH TC].) (See 01-11-9 OIL PUMP REMOVAL/
INSTALLATION[L3 WITH TC].)

End Of Sie
WM: OIL PRESSURE

01-11–1
1871-1U-06B(01-11).fm 2 ページ ２００６年３月１５日 水曜日 午前１０時４２分

LUBRICATION [L3 WITH TC]

OIL PRESSURE INSPECTION[L3 WITH TC]
id011139800300

Warning
• Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the
engine oil have cooled.
• A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall,
causing death or serious injury. Never work around or under a lifted vehicle if it is not securely
supported on safety stands.
• Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your
skin by washing with soap and water immediately after working with engine oil.

1. Disconnect the negative battery cable.

2. Remove the under cover.
3. Remove the oil pressure switch.
4. Screw the SSTs into the oil pressure switch
installation hole.
5. Connect the negative battery cable. 49 0187 280A
6. Warm up the engine to normal operating
temperature.
7. Run the engine at the specified speed, and note
the gauge readings.
• If not within the specification, inspect for the
cause and repair or replace if necessary.

Note 49 E019 001

• The oil pressure can vary with oil viscosity
acxuuw00001988
and temperature.

Oil pressure (reference value) [oil temperature: 100 °C {212 °F}]

297— 551 kPa {3.03— 5.61 kgf/cm2, 43.1— 79.9 psi} [3,000 rpm]

8. Stop the engine and wait until it is cool.

9. Disconnect the negative battery cable.
10. Remove the SSTs.

Caution
• Make sure that there is no sealant between 1.0— 2.0 mm {0.04— 0.07 in} from the end of the oil
pressure switch to prevent a possible operation malfunction.

11. Apply silicone sealant to the oil pressure switch

threads as shown in the figure.
12. Install the oil pressure switch. 1.0—2.0 mm {0.04—0.07 in}

Tightening torque
12— 18 N·m {1.3— 1.8 kgf·m, 9— 13 ft·lbf}

13. Connect the negative battery cable.

14. Start the engine and confirm that there is no oil
leakage. SEALANT

• If there is oil leakage, repair or replace the

applicable part.
acxuuw00001989
15. Install the under cover.
End Of Sie
WM: ENGINE OIL

01-11–2
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LUBRICATION [L3 WITH TC]

ENGINE OIL LEVEL INSPECTION[L3 WITH TC]
id011139800500
1. Position the vehicle on level ground.
2. Warm up the engine.
3. Stop the engine and allow approx. 5 min before continuing.
4. Rotate the service hole cap (installed to charge
air cooler duct) used to remove/install the dipstick
CHARGE AIR
in the direction shown in the figure and remove it. COOLER DUCT 01-11

SERVICE HOLE CAP

acxuuw00002001

5. Remove the dipstick and verify that the oil level is

between the MIN and MAX marks on the dipstick.
• If the oil level is below the MIN mark, add
engine oil.
MIN MAX

MIN MARK MAX MARK

acxuuw00002002

6. Install the service hole cap by rotating it in the

direction shown in the figure.
CHARGE AIR
End Of Sie COOLER DUCT

SERVICE HOLE CAP

acxuuw00002003

01-11–3
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LUBRICATION [L3 WITH TC]

ENGINE OIL REPLACEMENT[L3 WITH TC]
id011139800400

Warning
• Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the
engine oil have cooled.
• A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall,
causing death or serious injury. Never work around or under a lifted vehicle if it is not securely
supported on safety stands.
• Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your
skin by washing with soap and water immediately after working with engine oil.

Caution
• If engine oil is spilled on the exhaust system, wipe it off completely. If you fail to wipe the spilled
engine oil, it will produce fumes because of the heat.

1. Position the vehicle on level ground.

2. Remove the oil filler cap.
3. Remove the service hole cover (installed to under
cover) used to drain the engine oil. FRONT UNDER
4. Remove the oil pan drain plug. COVER
5. Drain the engine oil into a container.
6. Install the oil pan drain plug with a new washer.
SERVICE
Oil pan drain plug tightening torque HOLE
30— 41 N·m {3.1— 4.1 kgf·m, 23— 30 ft·lbf} COVER

Note
• The amount of residual oil in the engine can SCREW
vary according to factors such as the
acxuuw00001998
replacement method and oil temperature.
Verify the oil level after engine oil
replacement.

7. Refill with the following type and amount of the engine oil.

Engine oil capacity (approx. quantity)

Oil replacement: 5.3 L {5.6 US qt, 4.7 Imp qt}
Oil and oil filter replacement: 5.7 L {6.0 US qt, 5.0 Imp qt}
Total (dry engine): 6.4 L {6.8 US qt, 5.6 Imp qt}

Engine oil specification

Item U.S.A. and CANADA Except U.S.A. and CANADA

Engine oil grade

(ILSAC)
(ILSAC)

API SL or ILSAC
Engine oil viscosity 5W-30

8. Install the oil filler cap.

9. Start the engine and confirm that there is no oil leakage.
• If there is oil leakage, repair or replace the applicable part.
10. Inspect the oil level. (See 01-11-3 ENGINE OIL LEVEL INSPECTION[L3 WITH TC].)
11. Install the service hole cover.
End Of Sie
01-11–4
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LUBRICATION [L3 WITH TC]

OIL FILTER REPLACEMENT[L3 WITH TC]
WM: OIL FILTER

id011139800700

Warning
• Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the
engine oil have cooled.
• A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall,
causing death or serious injury. Never work around or under a lifted vehicle if it is not securely
supported on safety stands. 01-11
• Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your
skin by washing with soap and water immediately after working with engine oil.

Caution
• If engine oil is spilled on the exhaust system, wipe it off completely. If you fail to wipe the spilled
engine oil, it will produce fumes because of the heat.
• To avoid damage to the oil filter, use only specified oil filter.

1. Remove the under cover.

2. Loosen the oil filter drain plug. (Do not remove.)
3. Loosen the filter cover for 1 turn using a
commercially available, cup-type oil filter wrench
(74 mm {2.9 in} diameter, 14 sided).
4. Remove the oil filter drain plug, and drain the
engine oil.

Note
• Oil could be easily drained when the air is in
the filter. OIL FILTER COVER
OIL FILTER DRAIN PLUG
5. Loosen the oil filter cover for another 1 turn.
acxuuw00002007

6. Remove the oil filter cover and the oil filter.

7. Use a clean rag to wipe off the mounting surface
on the oil filter adapter and the oil filter cover.
8. Apply clean engine oil to a new O-ring of the oil
filter cover.
9. Apply clean engine oil to a new O-ring of the oil
filter drain plug.
10. Install the oil filter, oil filter drain plug, and oil filter
cover. OIL FILTER
11. Tighten the oil filter cover and the oil filter drain
plug. O-RING OIL
R
Tightening torque
Oil filter cover: 30— 35 N·m {3.1— 3.5 OIL FILTER COVER
kgf·m, 22.2— 25.8 ft·lbf}
Oil filter drain plug: 9— 11 N·m {91.8— R OIL
O-RING
OIL FILTER DRAIN PLUG
112.2 kgf·cm, 79.6— 97.2 in·lbf}
acxuuw00002008
12. Start the engine and confirm that there is no oil
leakage.
• If there is oil leakage, repair or replace the applicable part.
13. Inspect the oil level. (See 01-11-3 ENGINE OIL LEVEL INSPECTION[L3 WITH TC].)
14. Install the under cover.
End Of Sie
WM: OIL COOLER

01-11–5
1871-1U-06B(01-11).fm 6 ページ ２００６年３月１５日 水曜日 午前１０時４２分

LUBRICATION [L3 WITH TC]

OIL COOLER REMOVAL/INSTALLATION[L3 WITH TC]
id011139800800

Warning
• Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the
engine oil have cooled.
• A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall,
causing death or serious injury. Never work around or under a lifted vehicle if it is not securely
supported on safety stands.
• Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your
skin by washing with soap and water immediately after working with engine oil.

1. Disconnect the negative battery cable.

2. Remove the under cover.
3. Drain the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
4. Remove in the order indicated in the table.
5. Use a clean rag to wipe off the mounting surface on the oil filter adapter and the oil cooler.
6. Install in the reverse order of the removal.
7. Refill the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
8. Start the engine and confirm that there is no oil leakage.
• If there is oil leakage, repair or replace the applicable part.
9. Inspect the oil level. (See 01-11-3 ENGINE OIL LEVEL INSPECTION[L3 WITH TC].)
.

1 Water hose
34—40 {3.5—4.0, 25.1—29.4}
2 Oil cooler
End Of Sie
R 2 1
WM: OIL PAN

1
OIL

OIL FILTER
ADAPTER

N·m {kgf·m, ft·lbf}

acxuuw00002009

OIL PAN REMOVAL/INSTALLATION[L3 WITH TC]

id011139800200

Warning
• Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the
engine oil have cooled.
• A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall,
causing death or serious injury. Never work around or under a lifted vehicle if it is not securely
supported on safety stands.
• Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your
skin by washing with soap and water immediately after working with engine oil.

1. Complete the “BEFORE REPAIR PROCEDURE”. (See 01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH
TC].)
2. Remove the battery and battery tray. (See 01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the under cover.
4. Remove the splash shield (RH).
5. Drain the engine oil. (See 01-11-4 ENGINE OIL REPLACEMENT[L3 WITH TC].)
6. Drain the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
7. Remove the charge air cooler, air cleaner and fresh air duct component, and air hose. (See 01-13-5 INTAKE
AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
8. Disconnect the quick release connector on the high pressure fuel pump. (See 01-14-19 QUICK RELEASE
CONNECTOR REMOVAL/INSTALLATION[L3 WITH TC].)
9. Remove the high pressure fuel pump. (See 01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
INSTALLATION[L3 WITH TC].)

01-11–6
1871-1U-06B(01-11).fm 7 ページ ２００６年３月１５日 水曜日 午前１０時４２分

LUBRICATION [L3 WITH TC]

10. Remove the ignition coils. (See 01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
11. Loosen the water pump pulley bolts before removing the drive belt.
12. Remove the drive belt. (See 01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
13. Remove the P/S oil pump with hose and pipe still connected. Position the P/S oil pump out of the way. (See 06-
14-21 POWER STEERING OIL PUMP REMOVAL/INSTALLATION.)
14. Remove the crankshaft position (CKP) sensor. (See 01-40-42 CRANKSHAFT POSITION (CKP) SENSOR
REMOVAL/INSTALLATION[L3 WITH TC].)
15. Remove the engine front cover. (See 01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].) 01-11
16. Remove in the order indicated in the table.
17. Install in the reverse order of removal.
18. Refill with the specified type and amount of the engine oil. (See 01-11-4 ENGINE OIL REPLACEMENT[L3
WITH TC].)
19. Refill the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
20. Start the engine and confirm that there is no oil leakage.
• If there is oil leakage, repair or replace the applicable part.
21. Inspect the oil level. (See 01-11-3 ENGINE OIL LEVEL INSPECTION[L3 WITH TC].)
22. Inspect for engine coolant leakage. (See 01-12-6 ENGINE COOLANT LEAKAGE INSPECTION[L3 WITH TC].)
23. Inspect for the ignition timing and idle speed. (See 01-10-35 ENGINE TUNE-UP[L3 WITH TC].)

37—52 {3.8—5.3,
28—38}

8.0—11.5 N·m
{82—117 kgf·cm,
71—101 in·lbf}
A

SEALANT 2 R

3
A

17—23 {1.8—2.3, 12.6—16.9}

17—23 {1.8—2.3, 12.6—16.9}

N·m {kgf·m, ft·lbf}

37—52 {3.8—5.3, 28—38}
acxuuw00001991

1 Dipstick pipe 3 Oil pan

2 O-ring (See 01-11-7 Oil Pan Removal Note.)
(See 01-11-8 Oil Pan Installation Note.)

Oil Pan Removal Note

1. Remove the oil pan using a separator tool.

acxuuw00001992

01-11–7
1871-1U-06B(01-11).fm 8 ページ ２００６年３月１５日 水曜日 午前１０時４２分

LUBRICATION [L3 WITH TC]

Oil Pan Installation Note

Caution
• Apply the silicon sealant in a single, unbroken line around the whole perimeter.
• Using bolts with the old seal adhering could cause cracks in the housing.

1. Completely clean and remove any oil, dirt, sealant

or other foreign material that may be adhering to
the housing and oil pan.
2. When reusing the oil pan installation bolts, clean DAMAGE
any old sealant from the bolts.

OLD SEALANT

acxuuw00001993

3. Use a square ruler to align the oil pan and the

cylinder block junction side on the engine front
cover side.

acxuuw00001994

4. Apply silicone sealant to the oil pan along the

inside of the bolt holes as shown in the figure.

Thickness 2.2—3.2 mm
2.2— 3.2 mm {0.087— 0.126 in} {0.087—0.126 in}

acxuuw00001995

5. Tighten the bolts in the order shown in the figure.

13 8 4 1 5 9
Tightening torque
17— 23 N·m {1.8— 2.3 kgf·m, 12.6— 16.9
ft·lbf} 10

11
12 7 3 2 6
acxuuw00001996

01-11–8
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
LUBRICATION [L3 WITH TC]
6. Tighten the oil pan-transaxle installation bolts.

Tightening torque
37— 52 N·m {3.8— 5.3 kgf·m, 28— 38 ft·lbf}

End Of Sie
WM: OIL PUMP

01-11

OIL PAN-TRANSAXLE INSTALLATION BOLTS

acxuuw00001997

OIL PUMP REMOVAL/INSTALLATION[L3 WITH TC]

id011139800600

Warning
• Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the
engine oil have cooled.
• A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall,
causing death or serious injury. Never work around or under a lifted vehicle if it is not securely
supported on safety stands.
• Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your
skin by washing with soap and water immediately after working with engine oil.

1. Complete the “BEFORE REPAIR PROCEDURE”. (See 01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH
TC].)
2. Remove the battery and battery tray. (See 01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the under cover.
4. Remove the splash shield (RH).
5. Drain the engine oil. (See 01-11-4 ENGINE OIL REPLACEMENT[L3 WITH TC].)
6. Drain the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
7. Remove the charge air cooler, air cleaner and fresh air duct component, and air hose. (See 01-13-5 INTAKE
AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
8. Disconnect the quick release connector on the high pressure fuel pump. (See 01-14-19 QUICK RELEASE
CONNECTOR REMOVAL/INSTALLATION[L3 WITH TC].)
9. Remove the high pressure fuel pump. (See 01-14-16 HIGH PRESSURE FUEL PUMP REMOVAL/
INSTALLATION[L3 WITH TC].)
10. Remove the ignition coils. (See 01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
11. Loosen the water pump pulley bolts before removing the drive belt.
12. Remove the drive belt. (See 01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
13. Remove the P/S oil pump with hose and pipe still connected. Position the P/S oil pump out of the way. (See 06-
14-21 POWER STEERING OIL PUMP REMOVAL/INSTALLATION.)
14. Remove the crankshaft position (CKP) sensor. (See 01-40-42 CRANKSHAFT POSITION (CKP) SENSOR
REMOVAL/INSTALLATION[L3 WITH TC].)
15. Remove the engine front cover. (See 01-10-10 TIMING CHAIN REMOVAL/INSTALLATION[L3 WITH TC].)
16. Remove the oil pan. (See 01-11-6 OIL PAN REMOVAL/INSTALLATION[L3 WITH TC].)
17. Remove in the order indicated in the table.
18. Install in the reverse order of removal.
19. Refill with the specified type and amount of the engine oil. (See 01-11-4 ENGINE OIL REPLACEMENT[L3
WITH TC].)
20. Refill the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
21. Start the engine and confirm that there is no oil leakage.
• If there is oil leakage, repair or replace the applicable part.
22. Inspect the oil level. (See 01-11-3 ENGINE OIL LEVEL INSPECTION[L3 WITH TC].)
23. Inspect for engine coolant leakage. (See 01-12-6 ENGINE COOLANT LEAKAGE INSPECTION[L3 WITH TC].)
24. Inspect for the ignition timing and idle speed. (See 01-10-35 ENGINE TUNE-UP[L3 WITH TC].)
25. Inspect the oil pressure. (See 01-11-2 OIL PRESSURE INSPECTION[L3 WITH TC].)

01-11–9
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
LUBRICATION [L3 WITH TC]

2
8.0—11.5
{82—117,
71—101}
4
3
B

5
6

R
OIL

8.0—11.5
{82—117,
1
71—101}

A : 20—30 N·m {2.1—3.0 kgf·m, 15—22 ft·lbf}

N·m {kgf·cm, in·lbf}
B : 8—12 N·m {82—122 kgf·cm, 71—105 in·lbf}, 17—23 N·m {1.8—2.3 kgf·m, 12.6—16.9 ft·lbf}
acxuuw00002574

1 Oil strainer 5 Oil pump sprocket

2 Oil pump chain guide (See 01-11-10 Oil Pump Sprocket Removal/
Installation Note.)
3 Oil pump chain tensioner
6 Oil pump
4 Oil pump chain (See 01-11-10 Oil Pump Installation Note.)

Oil Pump Sprocket Removal/Installation Note

1. Temporarily install the crankshaft pulley and
crankshaft pulley lock bolt to the crankshaft, and
lock the oil pump against rotation as shown in
figure.
2. Remove/install the oil pump sprocket, and then
remove the crankshaft pulley and crankshaft
pulley lock bolt.

Tightening torque
20—30 N·m {2.1—3.0 kgf·m, 15—22 ft·lbf} CRANKSHAFT OIL PUMP
PULLEY SPROCKET
acxuuw00002575

Oil Pump Installation Note

1. Tighten the oil pump bolts in two steps in the
order shown in the figure.
1
Tightening torque 4
Step 1: 8— 12 N·m {82— 122 kgf·cm, 71—
105 in·lbf}
Step 2: 17— 23 N·m {1.8— 2.3 kgf·m, 12.6—
16.9 ft·lbf}
3
End Of Sie 2

acxuuw00002006

01-11–10 Revised 11/2006 (Ref. No. R172/06)

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
COOLING SYSTEM [L3 WITH TC]
01-12 COOLING SYSTEM [L3 WITH TC]
COOLING SYSTEM LOCATION INDEX Radiator Removal Note . . . . . . . . . . . . . 01-12–10
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-12–2 THERMOSTAT
COOLING SYSTEM SERVICE REMOVAL/INSTALLATION
WARNINGS[L3 WITH TC] . . . . . . . . . . 01-12–2 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-12–11
ENGINE COOLANT LEVEL INSPECTION THERMOSTAT INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-12–3 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-12–11 01-12
ENGINE COOLANT PROTECTION WATER PUMP
INSPECTION[L3 WITH TC] . . . . . . . . . 01-12–4 REMOVAL/INSTALLATION
ENGINE COOLANT REPLACEMENT [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-12–12
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-12–5 O-ring Installation Note . . . . . . . . . . . . . 01-12–12
ENGINE COOLANT LEAKAGE FAN MOTOR
INSPECTION[L3 WITH TC] . . . . . . . . . 01-12–6 REMOVAL/INSTALLATION
COOLING SYSTEM CAP INSPECTION [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-12–12
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-12–7 ATF Oil Cooler Pipe
COOLANT RESERVE TANK Removal Note . . . . . . . . . . . . . . . . . . . 01-12–14
REMOVAL/INSTALLATION Cooling Fan Component
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-12–7 Removal Note. . . . . . . . . . . . . . . . . . . 01-12–14
Coolant Reserve Tank FAN MOTOR INSPECTION
Removal Note . . . . . . . . . . . . . . . . . . 01-12–8 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-12–14
RADIATOR REMOVAL/INSTALLATION Part Inspection . . . . . . . . . . . . . . . . . . . 01-12–14
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-12–8 FAN CONTROL MODULE INSPECTION
Upper Mount Rubber Bracket [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-12–14
Removal Note . . . . . . . . . . . . . . . . . . 01-12–10

End of Toc
WM: COOLING SYSTEM

01-12–1
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
COOLING SYSTEM [L3 WITH TC]
COOLING SYSTEM LOCATION INDEX[L3 WITH TC]
id011239800100

2 9
2 7
1
8

5
3
4
acxuuw00002010
.

1 Cooling system cap 5 Water pump

(See 01-12-7 COOLING SYSTEM CAP (See 01-12-12 WATER PUMP REMOVAL/
INSPECTION[L3 WITH TC].) INSTALLATION[L3 WITH TC].)
2 Coolant reserve tank 6 Cooling fan motor No.1
(See 01-12-3 ENGINE COOLANT LEVEL (See 01-12-12 FAN MOTOR REMOVAL/
INSPECTION[L3 WITH TC].) INSTALLATION[L3 WITH TC].)
(See 01-12-7 COOLANT RESERVE TANK (See 01-12-14 FAN MOTOR INSPECTION[L3 WITH
REMOVAL/INSTALLATION[L3 WITH TC].) TC]01-12-14 FAN MOTOR INSPECTION[L3 WITH
3 Radiator TC].)
(See 01-12-4 ENGINE COOLANT PROTECTION 7 Cooling fan motor No.2
INSPECTION[L3 WITH TC].) (See 01-12-12 FAN MOTOR REMOVAL/
(See 01-12-5 ENGINE COOLANT INSTALLATION[L3 WITH TC].)
REPLACEMENT[L3 WITH TC].) (See 01-12-14 FAN MOTOR INSPECTION[L3 WITH
(See 01-12-6 ENGINE COOLANT LEAKAGE TC].)
INSPECTION[L3 WITH TC].) 8 Fan control module No.1
(See 01-12-8 RADIATOR REMOVAL/ (See 01-12-14 FAN CONTROL MODULE
INSTALLATION[L3 WITH TC].) INSPECTION[L3 WITH TC].)
4 Thermostat 9 Fan control module No.2
(See 01-12-11 THERMOSTAT REMOVAL/ (See 01-12-14 FAN CONTROL MODULE
INSTALLATION[L3 WITH TC].) INSPECTION[L3 WITH TC].)
(See 01-12-11 THERMOSTAT INSPECTION[L3
WITH TC].)

End Of Sie
COOLING SYSTEM SERVICE WARNINGS[L3 WITH TC]
id011239800200

Warning
• Never remove the cooling system cap or loosen the radiator drain plug while the engine is
running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot
out and cause serious injury. It may also damage the engine and cooling system.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.
• Depending on the vehicle, the cooling fan may operate suddenly even when the ignition switch is
turned off. Therefore, keep hands and tools away from the cooling fan even if the cooling fan is
not operating to prevent injury to personnel or damage to the cooling fan. Always disconnect the
negative battery cable when servicing the cooling fan or parts near the cooling fan.

01-12–2 Revised 7/2006 (Ref. No. R065/06)

1871-1U-06B(01-12).fm 3 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

ENGINE COOLANT LEVEL INSPECTION[L3 WITH TC]
id011239800300

Warning
• Never remove the cooling system cap or loosen the radiator drain plug while the engine is
running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot
out and cause serious injury. It may also damage the engine and cooling system.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while 01-12
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.

Note
• If the “FL22” mark is shown on or near the cooling system cap, use FL22 type engine coolant.
• FL22 type engine coolant is shipped as a
diluted solution (55% coolant, 45% water).
Use the solution as is when replacing
coolant.

acxuuw00002056

1. Remove the cooling system cap.

2. Verify that the engine coolant is filled close to the top of the radiator filler neck.
• If the engine coolant level is low, add engine coolant.
3. Verify that the engine coolant level in the coolant
reserve tank is between the FULL and LOW
marks.
• If the engine coolant level is below the LOW
mark, add engine coolant.
End Of Sie

acxuuw00002057

01-12–3
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COOLING SYSTEM [L3 WITH TC]

ENGINE COOLANT PROTECTION INSPECTION[L3 WITH TC]
id011239800400
1. Measure the engine coolant temperature and specific gravity using a thermometer and a hydrometer.

Caution
• Use engine coolant at a concentration that meets the environmental conditions in which the
vehicle is driven, otherwise engine damage could occur.
• The engine has aluminum parts and must be protected by an ethylene-glycol-based coolant to
prevent corrosion and freezing.
• Do not use coolants containing Alcohol, Methanol, Borate or Silicate. These coolants could
damage the cooling system.
• Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut
down on the coolant’s effectiveness.
• Engine coolant damages paint. If engine coolant does get on a painted surface, rinse it off quickly.

Note
• If the “FL22” mark is shown on or near the cooling system cap, use FL22 type engine coolant.
• FL22 type engine coolant is shipped as a
diluted solution (55% coolant, 45% water).
Use the solution as is when replacing
coolant.

acxuuw00002058

2. Determine the engine coolant protection level by

SPECIFIC COOLANT PROTECTION
referring to the graph shown in the figure. (EXCEPT FL22 TYPE ENGINE COOLANT)
GRAVITY
• If the engine coolant protection level is not
1.10
correct, add water or engine coolant.
End Of Sie 1.09

1.08

1.07 55%
1.06
45%
1.05
35%
1.04

1.03

1.02

1.01

1.00
0 5 10 15 20 25 30 35 40 45 50
{32} {41} {50} {59} {68} {77} {86} {95} {104} {113} {122}

COOLANT TEMPERATURE °C {°F}

acxuuw00002059

01-12–4
1871-1U-06B(01-12).fm 5 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

ENGINE COOLANT REPLACEMENT[L3 WITH TC]
id011239800600

Warning
• Never remove the cooling system cap or loosen the radiator drain plug while the engine is
running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot
out and cause serious injury. It may also damage the engine and cooling system.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while 01-12
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.

Caution
• Use engine coolant at a concentration that meets the environmental conditions in which the
vehicle is driven, otherwise engine damage could occur.
• The engine has aluminum parts and must be protected by an ethylene-glycol-based coolant to
prevent corrosion and freezing.
• Do not use coolants containing Alcohol, Methanol, Borate or Silicate. These coolants could
damage the cooling system.
• Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut
down on the coolant's effectiveness.
• Engine coolant damages paint. If engine coolant does get on a painted surface, rinse it off quickly.

Note
• If the “FL22” mark is shown on or near the cooling system cap, use FL22 type engine coolant.
• FL22 type engine coolant is shipped as a
diluted solution (55% coolant, 45% water).
Use the solution as is when replacing
coolant.

Engine coolant capacity (approx. quantity)

9.0 L {9.5 US qt, 7.9 Imp qt}

acxuuw00002061

1. Remove the cooling system cap.

2. Remove the radiator drain plug and drain the COOLING SYSTEM CAP
engine coolant into a container.
3. Flush the cooling system with water until all traces
of color are gone.
4. Let the system drain completely.
5. Tighten the radiator drain plug with a new gasket.

Tightening torque
1.5— 2.4 N·m {15— 25 kgf·cm, 13— 21 in·lbf}

6. Referring to the following chart, select the correct RADIATOR DRAIN PLUG
volume percentage of the water and engine
acxuuw00002062
coolant.
Antifreeze solution mixture percentage (Except FL22 type engine coolant)
Volume percentage (%)
Engine coolant protection Gravity at 20 °C {68 °F}
Water Coolant
Above -16 °C {3 °F} 65 35 1.057
Above -26 °C {-15 °F} 55 45 1.072
Above -40 °C {-40 °F} 45 55 1.086

01-12–5
1871-1U-06B(01-12).fm 6 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

7. Refill the engine coolant from the radiator filler neck until it is close to the top of the radiator filler neck.
8. Refill the engine coolant into the coolant reserve tank up to the FULL mark on the tank.
9. Install the cooling system cap.

Caution
• If the water temperature gauge rises too high, stop the engine and decrease the engine coolant
temperature to prevent overheating. Then, verify the malfunctioning part and repair or replace it.

10. Start the engine and warm up the engine by idling.

11. After the engine warms up, perform the following steps. At this time, be careful of the engine coolant
temperature to prevent overheating.

Note
• If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to
the idle speed. This is due to the fuel cut control operation, which prevents overheating, and it does not
indicate a malfunction.

(1) Run the engine at approx. 5,000 rpm for 1 min.

(2) Run the engine at idle for 5 s.
(3) Repeat steps (1), (2) several times.
(4) Operate the heater at the maximum temperature and airflow, and verify that hot air blows from vent.
12. Stop the engine, and inspect the engine coolant level after the engine coolant temperature decreases. If it is
low, repeat steps 7— 11.
13. Inspect for engine coolant leakage. (See 01-12-6 ENGINE COOLANT LEAKAGE INSPECTION[L3 WITH TC].)
End Of Sie
ENGINE COOLANT LEAKAGE INSPECTION[L3 WITH TC]
id011239800500

Warning
• Never remove the cooling system cap or loosen the radiator drain plug while the engine is
running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot
out and cause serious injury. It may also damage the engine and cooling system.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.

1. Inspect the engine coolant level. (See 01-12-3 ENGINE COOLANT LEVEL INSPECTION[L3 WITH TC].)
2. Remove the cooling system cap.
3. Install the SST and a radiator cap tester to the
radiator filler neck.
4. Apply pressure using the radiator cap tester.
49 9200 145
Caution
• Applying more than 142.2 kPa {1.45 kgf/
cm2, 20.6 psi} can damage the hoses,
fittings, and other components, and
cause leakage.

Pressure
142.2 kPa {1.45 kgf/cm2, 20.6 psi} [1 min] acxuuw00002060

5. When pressurizing the cooling system, verify that the pressure is maintained.
• If the gauge needle drops, it may indicate water leakage. Repair or replace the applicable part.
End Of Sie
WM: COOLING FAN MOTOR

01-12–6
1871-1U-06B(01-12).fm 7 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

COOLING SYSTEM CAP INSPECTION[L3 WITH TC]
id011239801500

Warning
• Never remove the cooling system cap or loosen the radiator drain plug while the engine is
running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot
out and cause serious injury. It may also damage the engine and cooling system.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while
01-12
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.
1. Clean the cooling system cap and the sealed part.
2. Inspect the cooling system cap for cracks or everted seal.
• If there is any malfunction, replace the cooling system cap.
3. Attach the cooling system cap to the SST and a
radiator cap tester.
49 9200 145
4. Hold the cooling system cap downward and apply
pressure gradually. Verify that the pressure is held
stable for 10 s.
• If the pressure is not held stable, replace the
cooling system cap.

Cooling system cap valve opening pressure

112.8— 142.2 kPa {1.15— 1.45 kgf/cm2, COOLING SYSTEM CAP
16.4— 20.6 psi}
acxuuw00002014
End Of Sie
COOLANT RESERVE TANK REMOVAL/INSTALLATION[L3 WITH TC]
id011239801000
1. Remove the charge air cooler duct. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.. A
1 Wiring harness
2 Hose 2
3 Coolant reserve tank
(See 01-12-8 Coolant Reserve Tank Removal Note.)
3

acxuuw00002066

01-12–7
1871-1U-06B(01-12).fm 8 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

Coolant Reserve Tank Removal Note
1. Remove the coolant reserve tank from the
TAB
radiator cowling tabs shown in the figure by lifting
them with a flathead screwdriver.
End Of Sie

acxuuw00002067

RADIATOR REMOVAL/INSTALLATION[L3 WITH TC]

id011239801400

Warning
• Never remove the cooling system cap or loosen the radiator drain plug while the engine is
running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot
out and cause serious injury. It may also damage the engine and cooling system.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.

1. Disconnect the negative battery cable.

2. Drain the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
3. Remove the charge air cooler duct, air cleaner and fresh air duct component. (See 01-13-5 INTAKE AIR
SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the coolant reserve tank. (See 01-12-7 COOLANT RESERVE TANK REMOVAL/INSTALLATION[L3
WITH TC].)
5. Remove the dipstick pipe. (See 01-11-6 OIL PAN REMOVAL/INSTALLATION[L3 WITH TC].)
6. Remove the cooling fan component. (See 01-12-12 FAN MOTOR REMOVAL/INSTALLATION[L3 WITH TC].)
7. Remove the under cover.
8. Disconnect the ATF oil cooler hose from the radiator.
9. Remove in the order indicated in the table.
10. Install in the reverse order of the removal.
11. Refill the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
12. Inspect for engine coolant leakage. (See 01-12-6 ENGINE COOLANT LEAKAGE INSPECTION[L3 WITH TC].)
13. Inspect the ATF level. (See 05-17-10 AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION[AW6A-EL,
AW6AX-EL].)

01-12–8
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
Simulation Function Procedure
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following
items from the initial screen of the M-MDS.
• When using the IDS (notebook PC)
1. Select the “Toolbox” tab.
2. Select “DataLogger”.
3. Select “Module”. DLC-2 01-02
4. Select “PCM”.
• When using the PDS (pocket PC)
1. Select “Module Tests”.
2. Select “PCM”.
3. Select “DataLogger”.
acxuuw00001891
3. Select the simulation items from the PID table.
4. Perform the simulation function, inspect the
operations for each parts.
• If there is no operation sound from the relay, motor, and solenoid after the simulation function inspection is
performed, it is possible that there is an open or short circuit in the wiring harness, relay, motor or solenoid,
or sticking and operation malfunction.
End Of Sie
DIAGNOSTIC MONITORING TEST RESULTS[L3 WITH TC]
id010239801400
• The purpose of this test mode is to confirm the result of the OBD-II monitor diagnostic test results. The result
values stored when a particular monitor is completed are displayed. If the monitor is not completed, the initial
value is displayed.
TEST ID Description Related system
10: 01: 80 HO2S (Front) lean-to-rich response time (calculated)
10: 02: 03 Low HO2S (Rear) voltage for switch time calculation (constant)
HO2S
10: 02: 04 High HO2S (Rear) voltage for switch time calculation (constant)
10: 02: 05 HO2S (Rear) rich-to-lean response time (calculated)
10: 21: 80 Front and HO2S (Rear) switching time ratio Catalyst
10: 31: 83 EGR pressure variation EGR
10: 3A: 80 EVAP system leak detection pump gross leak check
10: 3B: 80 EVAP system leak detection pump small leak check
EVAP
10: 3C: 80*1 EVAP system leak detection pump very small leak check
10: 3D: 80 Purge flow monitor
10: A2: 0B EWMA misfire counts for last 10 driving cycles
10: A2: 0C Misfire counts for last/current driving cycles
10: A3: 0B EWMA misfire counts for last 10 driving cycles
10: A3: 0C Misfire counts for last/current driving cycles
Misfire
10: A4: 0B EWMA misfire counts for last 10 driving cycles
10: A4: 0C Misfire counts for last/current driving cycles
10: A5: 0B EWMA misfire counts for last 10 driving cycles
10: A5: 0C Misfire counts for last/current driving cycles
10: E1: 80 Heat radiation ratio Engine cooling
10: E1: 81 Misfire counts for last/current driving cycles system

*1 : California emission regulation applicable model

End Of Sie

01-02–9
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
ON-BOARD DIAGNOSTIC [L3 WITH TC]
AFTER REPAIR PROCEDURE[L3 WITH TC]
id010239801100
1. Connect the M-MDS to the DLC-2.
2. Cycle the ignition switch from the off to the ON
position.
3. Any retrieved DTCs.
4. Clear all diagnostic data using the M-MDS.
End Of Sie
DLC-2

acxuuw00001892

KOEO/KOER SELF TEST[L3 WITH TC]

id010239801200

Note
• Perform a KOER self test with the engine idling after the engine speed increases to 2,000 rpm.
1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the M-MDS to the vehicle DLC-2 16-pin connector located in the driver compartment.
3. Retrieve the KOEO/KOER DTCs using the M-MDS.
End Of Sie
OBD-II DRIVE MODE[L3 WITH TC]
id010239801300
• Using the OBD-II drive mode, the monitoring item requested by OBD-II regulations can be easily diagnosed.
• Performing the Drive Mode inspects the OBD-II system for proper operation and must be performed to ensure
that no additional DTCs are present.
• The OBD-II drive mode is divided into the specific drive mode and single drive mode.
• For the specific drive mode, specified drive modes have been set for each individual monitoring item requested
by OBD-II regulations, and they can be diagnosed individually. For the single drive mode, the entire monitoring
item requested by OBD-II regulations can be diagnosed.
• The following modes are in the specific drive mode. The applicable system is diagnosed by driving in the
following drive modes.
— PCM Adaptive Memory Produce Drive Mode
— EGR System Repair Verification Drive Mode
— HO2S heater, HO2S, and TWC Repair Verification Drive Mode
— EVAP System Repair Verification Drive Mode
• The following systems are diagnosed with the single drive mode.
— EGR system
— Oxygen sensor (HO2S)
— Oxygen sensor heater
— Catalytic converter (TWC)
— Fuel, misfire and evaporative (EVAP) system
Caution
• While performing the Drive Mode, always operate the vehicle in a safe and lawful manner.
• When the M-MDS is used to observe monitor system status while driving, be sure to have another
technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD
function and inspect later.
Note
• Vehicle speed and engine speed detected by the PCM may differ from that indicated by the speedometer
and tachometer. Use the M-MDS to monitor vehicle speed.
• If the OBD-II system inspection is not completed during the Drive Mode, the following causes are
considered:
— The OBD-II system detects the malfunction.
— The Drive Mode procedure is not completed correctly.
• Disconnecting the battery will reset the memory. Do not disconnect the battery during and after Drive
Mode.
• The M-MDS can be used at anytime through the course of the Drive Mode to monitor the completion
status. Monitoring can be done by viewing the ON BOARD SYSTEM READINESS menu.
• The OBD monitoring status can be confirmed with the ignition switch operation. During KOEO, the MIL
illuminates for a fail-light inspection for approx. 17 s. The OBD monitoring status is confirmed after the
fail-light inspection.
— If all of the diagnosis is completed even one time, the MIL will continue to illuminate.
— If all of the diagnosis is not completed, the MIL flashes for approx. 7 s, and then it illuminates until the
engine is started.

01-02–10 Revised 3/2007 (Ref. No. R051/07)

1871-1U-06B(01-12).fm 11 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

THERMOSTAT REMOVAL/INSTALLATION[L3 WITH TC]
id011239801200

Warning
• Never remove the cooling system cap or loosen the radiator drain plug while the engine is
running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot
out and cause serious injury. It may also damage the engine and cooling system.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while 01-12
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.
1. Disconnect the negative battery cable.
2. Drain the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
3. Remove the front splash shield (RH).
4. Remove the charge air cooler duct. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
5. Remove the drive belt. (See 01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
6. Remove the P/S oil pump with hose and pipe still connected. Position the P/S oil pump out of the way. (See 06-
14-21 POWER STEERING OIL PUMP REMOVAL/INSTALLATION.)
7. Remove in the order indicated in the table.
8. Install in the reverse order of removal.
9. Refill the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
10. Inspect for engine coolant leakage. (See 01-12-6
ENGINE COOLANT LEAKAGE INSPECTION[L3
WITH TC].).
1 Water hose
2 Lower radiator hose
3 Thermostat component
4 Gasket
8.0—11.5
End Of Sie 3 {82—117,
71—101}

R 4

8.0—11.5
{82—117,
71—101}
2 1
N·m {kgf·cm, in·lbf}

acxuuw00002011
THERMOSTAT INSPECTION[L3 WITH TC]
id011239801300
1. Inspect the thermostat for the following.
Warning
• During inspection, the thermostat and water are extremely hot and can cause severe burns. Do not
touch the thermostat and water.
• The valve should not open under normal temperature.
• Opening temperature and valve lift
— If there is a malfunction, replace the thermostat.
Thermostat initial-opening temperature
80— 84 °C {176— 183 °F}
Thermostat full-open temperature
97 °C {207 °F}

Thermostat full-open lift

More than 8.0 mm {0.31 in}

01-12–11
1871-1U-06B(01-12).fm 12 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

End Of Sie

WATER PUMP REMOVAL/INSTALLATION[L3 WITH TC]

id011239800700

Warning
• Never remove the cooling system cap or loosen the radiator drain plug while the engine is
running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot
out and cause serious injury. It may also damage the engine and cooling system.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.

1. Disconnect the negative battery cable.

2. Drain the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
3. Remove the front splash shield (RH).
4. Remove the charge air cooler duct. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
5. Loosen the water pump pulley bolts before removing the drive belt.
6. Remove the drive belt. (See 01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
7. Remove in the order indicated in the table.
8. Install in the reverse order of removal.
9. Refill the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
10. Inspect for engine coolant leakage. (See 01-12-6
ENGINE COOLANT LEAKAGE INSPECTION[L3
WITH TC].).
1 Water pump pulley
2 Water pump
3 O-ring
(See 01-12-12 O-ring Installation Note.)
R
3
2

17—23
{1.8—2.3, 8.0—11.5 N·m
13—16} {82—117 kgf·cm,
71—101 in·lbf}

N·m {kgf·m, ft·lbf}

acxuuw00002063

O-ring Installation Note

1. Apply engine coolant to a new O-ring.
2. Install the O-ring.
End Of Sie
FAN MOTOR REMOVAL/INSTALLATION[L3 WITH TC]
id011239801600

Warning
• Never remove the cooling system cap or loosen the radiator drain plug while the engine is
running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot
out and cause serious injury. It may also damage the engine and cooling system.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.

01-12–12
1871-1U-06B(01-12).fm 13 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Drain the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
4. Remove the charge air cooler duct, air cleaner and fresh air duct component. (See 01-13-5 INTAKE AIR
SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
5. Remove the coolant reserve tank. (See 01-12-7 COOLANT RESERVE TANK REMOVAL/INSTALLATION[L3
WITH TC].)
6. Remove the dipstick pipe. (See 01-11-6 OIL PAN REMOVAL/INSTALLATION[L3 WITH TC].) 01-12
7. Remove in the order indicated in the table.
8. Install in the reverse order of removal.
9. Refill the engine coolant. (See 01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
10. Inspect for engine coolant leakage. (See 01-12-6 ENGINE COOLANT LEAKAGE INSPECTION[L3 WITH TC].)
4
1.8—3.3
{18—34, 16—29}

2 1

1.8—3.3
5.9—8.3
{18—34,
{61—84, 53—72} 1 16—29}

11 7

2.7—5.0
{28—50,
25—43}
6 9
10

5.9—8.3
{61—84, 53—72}

A
4.9—7.9
{50—80,
44—69}
8

7.8—10.8 {80—110, 70—95}

N·m {kgf·cm, in·lbf}

acxuuw00002074
.

1 Fan control module connectors 6 Cooling fan component

2 Fan control module No.2 (See 01-12-14 Cooling Fan Component Removal
Note.)
3 Upper radiator hose
7 Fan control module No.1
4 Wiring harness
8 Cooling fan No.1
5 ATF oil cooler pipe
(See 01-12-14 ATF Oil Cooler Pipe Removal Note.) 9 Cooling fan No.2
10 Cooling fan motor No.1
11 Cooling fan motor No.2

01-12–13
1871-1U-06B(01-12).fm 14 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

ATF Oil Cooler Pipe Removal Note
1. Remove the ATF oil cooler pipe with the hoses still connected. Position the ATF oil cooler pipe so that it is out of
the way.

Cooling Fan Component Removal Note

1. Remove the cooling fan component from above the engine compartment.
End Of Sie
FAN MOTOR INSPECTION[L3 WITH TC]
id011239800900
Part Inspection
1. Verify that the battery is fully charged. (See 01-17-2 BATTERY INSPECTION[L3 WITH TC].)
2. Remove the charge air cooler duct. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
3. Disconnect the cooling fan motor connector (2 terminals).
4. Install a tester and battery to the cooling fan
motor connector (2 terminals) as shown in the B
figure. COOLING FAN
5. Verify that each fan motors operate smoothly at MOTOR
the standard current. NO.1, NO.2
• If there is any malfunction, replace the CONNECTOR
applicable part.
A

Cooling fan motor No.1, No.2 standard current

17.5— 22.5 A COOLING FAN MOTOR NO.1, NO.2 CONNECTOR

End Of Sie B A
WM: COOLANT RESERVE TANK

WM: COOLING SYSTEM CAP

WM: FAN CONTROL MODULE

acxuuw00002065

FAN CONTROL MODULE INSPECTION[L3 WITH TC]

id011239801100
1. Remove the charge air cooler duct. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
2. Connect the M-MDS to the DLC-2.
3. Start and warm up the engine.
4. Monitor the engine coolant temperature with the
M-MDS.

DLC-2
acxuuw00002068

5. Measure the voltage at terminal A of the fan

control module connector (2 terminals) as shown
in the table. FAN CONTROL MODULE NO.1, NO.2 CONNECTOR
• If not within the specification, inspect the input
signals from the following parts.
A B
— Crankshaft Position (CKP) sensor
— Engine Coolant Temperature (ECT)
sensor
— Throttle Position (TP) sensor
— Refrigerant pressure switch (middle)

acxuuw00002069

01-12–14
1871-1U-06B(01-12).fm 15 ページ ２００６年３月１５日 水曜日 午前１０時４３分

COOLING SYSTEM [L3 WITH TC]

Fan control module No.1
Inspection
Result
Condition A/C Engine coolant temp.
IG SW ON OFF 95 °C {203 °F} or less 0 V (Fan stops.)
IG SW ON (Idling) OFF 95 °C {203 °F} or less 0 V (Fan stops.)
IG SW ON (Idling) ON*1 95 °C {203 °F} or less 4.1 V
IG SW ON (Idling) ON*2 95 °C {203 °F} or less 6.2 V 01-12
IG SW ON (Idling) OFF 100 °C {212 °F} or more 4.1— 14.6 V

Fan control module No.2

Inspection
Result
Condition A/C Engine coolant temp.
IG SW ON OFF 95 °C {203 °F} or less 0 V (Fan stops.)
IG SW ON (Idling) OFF 95 °C {203 °F} or less 0 V (Fan stops.)
IG SW ON (Idling) ON*1 95 °C {203 °F} or less 5.5 V
IG SW ON (Idling) ON*2 95 °C {203 °F} or less 10.3 V
IG SW ON (Idling) OFF 100 °C {212 °F} or more 4.1— 14.6 V

*1 : Refrigerant pressure switch (middle) is off.

*2 : Refrigerant pressure switch (middle) is on.

6. If all the above parts are normal, replace the fan control module.
End Of Sie
WM: RADIATOR
WM: THERMOSTAT

WM: WATER PUMP

WM: COOLING FAN MOTOR

01-12–15
1871-1U-06B(01-13).fm 1 ページ ２００６年３月１５日 水曜日 午前１０時４４分

INTAKE-AIR SYSTEM [L3 WITH TC]

01-13 INTAKE-AIR SYSTEM [L3 WITH TC]
INTAKE AIR SYSTEM LOCATION INDEX CHARGE AIR COOLER INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-13–2 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-13–11
INTAKE AIR SYSTEM FLOW DIAGRAM AIR BYPASS VALVE INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-13–3 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-13–11
VACUUM HOSE ROUTING DIAGRAM THROTTLE ACTUATOR INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-13–4 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-13–12 01-13
INTAKE AIR SYSTEM MANIFOLD Resistance Inspection . . . . . . . . . . . . . . 01-13–12
VACUUM INSPECTION Circuit Open/Short Inspection . . . . . . . . 01-13–12
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-13–4 VARIABLE SWIRL SHUTTER VALVE
INTAKE AIR SYSTEM ACTUATOR INSPECTION
REMOVAL/INSTALLATION [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-13–13
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-13–5 VARIABLE SWIRL SOLENOID VALVE
Resonance Chamber INSPECTION[L3 WITH TC] . . . . . . . . . . 01-13–13
Removal Note . . . . . . . . . . . . . . . . . . 01-13–7 Circuit Open/Short Inspection . . . . . . . . 01-13–13
Air Hose Removal Note . . . . . . . . . . . . 01-13–7 WASTEGATE CONTROL SOLENOID
Air Duct Removal Note. . . . . . . . . . . . . 01-13–7 VALVE INSPECTION
Throttle Body Removal Note . . . . . . . . 01-13–7 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-13–14
Intake Manifold Removal Note . . . . . . . 01-13–7 Circuit Open/Short Inspection . . . . . . . . 01-13–15
Turbocharger Removal Note . . . . . . . . 01-13–8 WASTEGATE ACTUATOR
Turbocharger Installation Note . . . . . . . 01-13–9 INSPECTION[L3 WITH TC]. . . . . . . . . . 01-13–16
Wastegate Control Solenoid Valve TURBOCHARGER INSPECTION
Installation Note . . . . . . . . . . . . . . . . 01-13–10 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-13–17
Throttle Body Installation Note. . . . . . . 01-13–10 Compressor Wheel Inspection . . . . . . . 01-13–17
Air Cleaner Case Turbine wheel inspection. . . . . . . . . . . . 01-13–17
Installation Note . . . . . . . . . . . . . . . . 01-13–10 ACCELERATOR PEDAL
AIR CLEANER ELEMENT INSPECTION REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-13–11 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-13–17

End of Toc
WM: INTAKE-AIR SYSTEM

01-13–1
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INTAKE-AIR SYSTEM [L3 WITH TC]

INTAKE AIR SYSTEM LOCATION INDEX[L3 WITH TC]
id011339800100

7
10

4
6 1

acxuuw00000152
.

1 Air cleaner 6 Air bypass valve

(See01-13-5 INTAKE AIR SYSTEM REMOVAL/ (See01-13-11 AIR BYPASS VALVE
INSTALLATION[L3 WITH TC].) INSPECTION[L3 WITH TC].)
(See01-13-11 AIR CLEANER ELEMENT 7 Turbocharger
INSPECTION[L3 WITH TC].) (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
2 Throttle body INSTALLATION[L3 WITH TC].)
(See01-13-5 INTAKE AIR SYSTEM REMOVAL/ (See01-13-17 TURBOCHARGER INSPECTION[L3
INSTALLATION[L3 WITH TC].) WITH TC].)
(See01-13-12 THROTTLE ACTUATOR 8 Wastegate actuator
INSPECTION[L3 WITH TC].) (See01-13-16 WASTEGATE ACTUATOR
3 Variable swirl shutter valve actuator INSPECTION[L3 WITH TC].)
(See01-13-5 INTAKE AIR SYSTEM REMOVAL/ 9 Wastegate control solenoid valve
INSTALLATION[L3 WITH TC].) (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
(See01-13-13 VARIABLE SWIRL SHUTTER INSTALLATION[L3 WITH TC].)
VALVE ACTUATOR INSPECTION[L3 WITH TC].) (See01-13-14 WASTEGATE CONTROL
4 Variable swirl solenoid valve SOLENOID VALVE INSPECTION[L3 WITH TC].)
(See01-13-5 INTAKE AIR SYSTEM REMOVAL/ 10 Accelerator pedal
INSTALLATION[L3 WITH TC].) (See01-13-17 ACCELERATOR PEDAL REMOVAL/
(See01-13-13 VARIABLE SWIRL SOLENOID INSTALLATION[L3 WITH TC].)
VALVE INSPECTION[L3 WITH TC].) (See01-40-33 ACCELERATOR PEDAL POSITION
5 Charge air cooler (APP) SENSOR INSPECTION[L3 WITH TC].)
(See01-13-5 INTAKE AIR SYSTEM REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-13-11 CHARGE AIR COOLER
INSPECTION[L3 WITH TC].)

01-13–2
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INTAKE-AIR SYSTEM [L3 WITH TC]

End Of Sie

INTAKE AIR SYSTEM FLOW DIAGRAM[L3 WITH TC]

id011339800200

RESONANCE
CHAMBER

01-13

FRESH-AIR AIR CHARGE AIR

TURBOCHARGER
DUCT CLEANER COOLER

AIR BYPASS
VALVE

THROTTLE BODY

INTAKE MANIFOLD
THROTTLE COMBUSTION
VALVE CHAMBERS
VARIABLE SWIRL
SHUTTER VALVE

: INTAKE AIR FLOW

acxuuw00000282

End Of Sie

01-13–3
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INTAKE-AIR SYSTEM [L3 WITH TC]

VACUUM HOSE ROUTING DIAGRAM[L3 WITH TC]
id011339800300

CHECK VALVE

PURGE SOLENOID VALVE

VARIABLE SWIRL
SOLENOID VALVE

PCV VALVE

VARIABLE SWIRL SHATTER

VALVE ACTUATOR

acxuuw00000153

End Of Sie
INTAKE AIR SYSTEM MANIFOLD VACUUM INSPECTION[L3 WITH TC]
id011339804200
1. Verify that the intake air hoses are installed securely.
2. Warm up the engine.
3. Disconnect the vacuum hose connected between the check valve and the intake manifold from the intake
manifold and install the vacuum gauge. (See 01-14-19 QUICK RELEASE CONNECTOR REMOVAL/
INSTALLATION[L3 WITH TC])
4. Measure the intake manifold vacuum while idling (no load) using the vacuum gauge.
• If not within the specification, perform the following inspections.
— Accelerator cable play
— Compression pressure (See 01-10-9 COMPRESSION INSPECTION[L3 WITH TC].)
— Air suction (installation areas of throttle body, fuel injector, PCV valve, intake manifold)

Note
• If any air suction exists, the change in engine speed can be made apparent by spraying the penetrant
lubricating spray on the applicable part.

Standard
–71 kPa {–533 mmHg, –21 inHg} or more

End Of Sie

01-13–4
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INTAKE-AIR SYSTEM [L3 WITH TC]

INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC]
id011339800400

Warning
• A hot engine and intake air system can cause severe burns. Turn off the engine and wait until they
are cool before removing the intake air system.
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep
sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and 01-13
damage. Fuel can also irritate skin and eyes. To prevent this, always complete the “Fuel Line
Safety Procedure”. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)

1. Disconnect the negative battery cable.

2. Remove the charge air cooler duct.
3. Remove the battery and battery tray. (See01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the under cover.
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.

01-13–5
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INTAKE-AIR SYSTEM [L3 WITH TC]

7. Complete the “AFTER REPAIR PROCEDURE”. (See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].) .

7.8—10.8
{80—110, 70—95} 7

23.5—35.3 N·m
{2.40—3.59 kgf·m,
17.4—26.0 ft·lbf}
8
18.6—25.5 N·m
{1.90—2.60 kgf·m, 4.9 {50—43}
13.8—18.8 ft·lbf}

7.8—10.8
7.9—10.7 {80—110,
9 {81—109, 70—95}
70—94}
R R
A 7.8—10.8
{80—110,
4.9 {50—43} 70—95}
16
17
0.55—0.85
R {5.7—8.6,
4.9—7.5}
3.9—5.9
{40—60, 35—52}
1
11
23.5—35.3 N·m
2.5—3.4
{2.40—3.59 kgf·m,
{26—34,
17.4—26.0 ft·lbf}
8—11.5 23—30}
14
{82—117,
71—101} R
R

3
10
37.2—51.9 N·m
{3.80—5.29 kgf·m,
13 27.5—38.2 ft·lbf}
7.8—10.8
{80—110, 70—95} 2.5—3.4
{26—34,
R 23—30}
A

7.8—10.8
{80—110, 4
70—95} 2

8—11.5
{82—117,
71—101}
5
15

R
17—23 N·m 12
{1.8—2.3 kgf·m,
13—16 ft·lbf}

18.6—25.5 N·m
{1.90—2.60 kgf·m,
13.8—18.8 ft·lbf}
N·m {kgf·cm, in·lbf}

acxuuw00000205

01-13–6
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INTAKE-AIR SYSTEM [L3 WITH TC]

1 MAF/IAT sensor 12 Throttle body
2 Fresh air duct (See01-13-7 Throttle Body Removal Note.)
(See01-13-10 Throttle Body Installation Note.)
3 Air cleaner cover
13 Vacuum chamber
4 Air cleaner element
14 Variable swirl solenoid valve
5 Air cleaner case
15 Intake manifold
6 Resonance chamber (See01-13-7 Intake Manifold Removal Note.)
(See01-13-7 Air Hose Removal Note.) 01-13
16 Wastegate control solenoid valve
7 Charge air cooler cover (See01-13-10 Wastegate Control Solenoid Valve
8 Charge air cooler Installation Note.)
9 Air bypass valve 17 Turbocharger
10 Air hose (See01-13-8 Turbocharger Removal Note.)
(See01-13-7 Air Hose Removal Note.) (See01-13-9 Turbocharger Installation Note.)
11 Air duct (See 01-13-7 Air Duct Removal Note)

Resonance Chamber Removal Note

1. Remove the mudguard (LF).
2. Remove the resonance chamber.

Air Hose Removal Note

1. Disconnect the variable swirl shutter valve switch connector.
2. Disconnect the fuel injector harness connector.
3. Disconnect the ventilation hose connected to the air hose.
4. Remove the air hose.

Air Duct Removal Note

1. Disconnect the wastegate control solenoid valve connector.
2. Disconnect the purge solenoid valve connector.
3. Disconnect the EGR valve connector.
4. ATF gage pipe out of the way.
5. Remove the air duct.

Throttle Body Removal Note

1. Disconnect the throttle body connector.
2. Drain the engine coolant before removing the water hose. (See01-12-5 ENGINE COOLANT
REPLACEMENT[L3 WITH TC].)
3. Remove the throttle body.

Intake Manifold Removal Note

1. Remove the fuel delivery pipe cover.
2. Disconnect the quick connector connected to the
intake manifold.
3. Remove the EGR pipe.
FUEL DELIVERY
4. Disconnect the variable swirl solenoid valve PIPE COVER
connector.
5. Disconnect the OCV connector.
6. Disconnect the PSP switch connector.
7. Remove the oil level gauge pipe. (See01-11-6 OIL
PAN REMOVAL/INSTALLATION[L3 WITH TC].)
8. Remove the splash shield (RF).
9. Remove the drive belt. (See01-10-3 DRIVE BELT
acxuuw00000206
REMOVAL/INSTALLATION[L3 WITH TC].)
10. Set the power steering oil pump out of the way.
11. Disconnect the fuel pressure sensor connector.
12. Disconnect the vacuum hose connected between the intake manifold and the master cylinder from the intake
manifold.
13. Disconnect the MAP sensor connector.
14. Remove the intake manifold installation bolts.
15. Disconnect the evaporative hose connected between the intake manifold and the PCV valve from the intake
manifold.
16. Remove the intake manifold.

01-13–7
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INTAKE-AIR SYSTEM [L3 WITH TC]

Turbocharger Removal Note
1. Remove the middle pipe (See01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Disconnect the rear HO2S connector.
3. Remove the front pipe. (See01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)

Caution
• When removing the cowl grille, a part or tool may hit the edge of the windshield and could damage
it. Protect the windshield by covering it with a clean rag to prevent damage to the windshield.

4. Remove the cowl grille. (See09-16-11 COWL GRILLE REMOVAL/INSTALLATION.)

5. Remove the windshield wiper motor.
6. Remove the cowl panel.
7. Remove the insulator (Exhaust manifold upper side). (See01-15-2 EXHAUST SYSTEM REMOVAL/
INSTALLATION[L3 WITH TC].)
8. Set the generator out of the way. (See01-17-4 GENERATOR REMOVAL/INSTALLATION[L3 WITH TC].)
9. Remove the insulator (Exhaust manifold lower side). (See01-15-2 EXHAUST SYSTEM REMOVAL/
INSTALLATION[L3 WITH TC].)
10. Disconnect the front HO2S connector.
11. Remove the insulator (WU-TWC top side). (See01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3
WITH TC].)
12. Remove the vacuum hose (Brake master back side).
13. Remove the front HO2S. (See01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
14. Remove the WU-TWC. (See01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
15. Remove the oil pipes.

OIL PIPE

OIL PIPE

OIL PIPE

acxuuw00000207

16. Remove the turbocharger.

R

acxuuw00000285

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INTAKE-AIR SYSTEM [L3 WITH TC]

Turbocharger Installation Note
1. Install the turbocharger.
R 38—51 N·m
Tightening torque {3.9—5.2 kgf·m,
38— 51 N·m {3.9— 5.2 kgf·m, 29— 37 ft·lbf} 29—37 ft·lbf}

2. Install the WU-TWC. (See01-15-2 EXHAUST

SYSTEM REMOVAL/INSTALLATION[L3 WITH 01-13
TC].)
3. Install the front HO2S. (See01-15-2 EXHAUST
SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
acxuuw00000208

4. Tight the oil pipe installation bolt while the stopper

of the oil pipe is faced to the turbocharger.
R
STOPPER

23.5—35.3 N·m
{2.40—3.59 kgf·m,
17.4—26.0 ft·lbf}

7.8—10.8 N·m
{80—110 kgf·cm,
70—95 in·lbf}
acxuuw00000209

5. Install the oil pipes and, insert the oil hose until it
reaches the stopper.
7.8—10.8 {80—110, 70—95}

OIL HOSE

STOPPER

23.5—35.3 N·m
{2.40—3.59 kgf·m,
17.4—26.0 ft·lbf}

7.8—10.8
{80—110, 70—95}
N·m {kgf·cm, in·lbf}

acxuuw00000210

01-13–9
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INTAKE-AIR SYSTEM [L3 WITH TC]

Wastegate Control Solenoid Valve Installation Note
1. Install the wastegate control solenoid valve.

Tightening torque
7.8— 10.8 N·m {80— 110 kgf·cm, 70— 95 in·lbf}

1—3 mm
{0.04—0.11 in}

(36˚)
A
(95˚)
DETAIL A
B
WASTEGATE
CONTROL
SOLENOID
VALVE

(190˚)

7.8—10.8 N·m 1—4 mm

{80—110 kgf·cm, {0.04—0.15 in}
70—95 in·lbf} DETAIL B

acxuuw00000211
2. Install the hose as shown in the figure.

Throttle Body Installation Note

1. Tighten the throttle body installation bolts in the
order shown in the figure. ! 
Tightening torque
8— 11.5 N·m {82— 117 kgf·cm, 71— 101 729)4,
in·lbf}

"

acxuuw00000284

Air Cleaner Case Installation Note

Caution
• Before assembling the air cleaner, verify that the rubber mounts have not fallen off from the air
cleaner bracket (3 locations).
• Always install the air cleaner case using the following procedure.

Note
• When inserting the rubber mounts into the air cleaner case, soapy water can be applied.

1. Verify that the rubber mounts are set in the air cleaner bracket (3 locations).
2. Install the projections on the frame side (2 locations).
3. Verify that the projections on the frame side are installed securely.
4. Install the projection on the engine side (remaining location).
5. Verify that the projection on the engine side installed securely.

01-13–10
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INTAKE-AIR SYSTEM [L3 WITH TC]

End Of Sie

AIR CLEANER ELEMENT INSPECTION[L3 WITH TC]

WM: AIR CLEANER

id011339800800
1. Remove the air cleaner element. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
2. Verify that the air cleaner element surface is free of dirt.
• If there is dirt, use an air gun or similar tool to clean the element.
• If the replacement time limit has passed, replace the element.
End Of Sie 01-13
CHARGE AIR COOLER INSPECTION[L3 WITH TC]
WM: CHARGE AIR COOLER

id011339800900
1. Remove the charge air cooler duct.
2. Remove the charge air cooler cover. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
3. Remove the charge air cooler. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the air bypass valve. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
5. Plug ports A and B.
6. Verify that there is no air leakage when air is sent
from port C.
• If there is leakage, replace the charge air
cooler.
End Of Sie
WM: INTAKE-AIR SYSTEM
PORT A

PORT B

PORT C
acxuuw00000509

AIR BYPASS VALVE INSPECTION[L3 WITH TC]

id011339800500
1. Remove the charge air cooler duct.
2. Remove the air bypass valve. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Connect the vacuum pump to the vacuum ports of
VACUUM PORT
the air bypass valve.

PORT A

ROD

VACUUM PUMP PORT B

acxuuw00000287

Approx. value
VALVE OPERATION CHARACTERISTIC

7.5 {0.30}

ROD STROKE
(mm {in}) VALVE
OPEN

0.5 {0.02}
—P1 —P2
VACUUM
P1=49.3—65.3 kpa {370—489 mmHg, 15.0—19.2 inHg}
P2=86.1—115.3 kpa {646—864 mmHg, 25.5—34.0 inHg}
acxuuw00000286

01-13–11
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INTAKE-AIR SYSTEM [L3 WITH TC]

4. Verify that the airflow is as indicated in the table.
• If there is any malfunction, replace the air bypass valve.
Vacuum Valve operation Airflow between
(kPa {mmHg, inHg}) condition port A— B
–66 {–496, –20}
Open Yes
or more
–49 {–367, –14}
Closed No
or less

End Of Sie
THROTTLE ACTUATOR INSPECTION[L3 WITH TC]
WM: THROTTLE ACTUATOR

id011339801300

Note
• Perform the following inspection only when directed.
Resistance Inspection
1. Disconnect the negative battery cable.
2. Disconnect the throttle body connector.
3. Measure the resistance between the throttle actuator terminals using a tester.
• If not as specified, replace the throttle body. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
INSTALLATION[L3 WITH TC].)
• If as specified, carry out the “Circuit Open/Short Inspection”.
Specification
Ambient temperature (°C {°F}) Resistance (ohm)
Approx. 20 {68} 0.3— 100

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an
open or short circuit (continuity check). THROTTLE ACTUATOR
WIRING HARNESS SIDE CONNECTOR

F E

acxuuw00000024

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000025
Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Throttle actuator terminal F and PCM terminal 2A
— Throttle actuator terminal E and PCM terminal 2B
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Throttle actuator terminal F and power supply
— Throttle actuator terminal F and ground
— Throttle actuator terminal E and power supply
— Throttle actuator terminal E and ground
End Of Sie
WM: VARIABLE TUMBLE SHUTTER VALVE ACTUATOR

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INTAKE-AIR SYSTEM [L3 WITH TC]

VARIABLE SWIRL SHUTTER VALVE ACTUATOR INSPECTION[L3 WITH TC]
id011339801200
1. Remove the air hose. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Disconnect the vacuum hose from the variable swirl control solenoid valve.
3. Connect a vacuum pump to the variable swirl shutter valve actuator.
4. Apply vacuum and verify that the rod moves.
• If the rod does not move, replace the intake manifold. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/
INSTALLATION[L3 WITH TC].)
01-13
Vacuum
Rod movement
kPa {mmHg, inHg}
–2.7 {–20, –0.7} or less Not move
–33.4 {–251, –9.9} or more Fully pulled

End Of Sie
VARIABLE SWIRL SOLENOID VALVE INSPECTION[L3 WITH TC]
WM: VARIABLE TUMBLE SOLENOID VALVE

id011339801100
1. Remove the variable swirl solenoid valve.
2. Inspect the airflow between the ports under the
following conditions.
• If not as specified, replace the variable swirl B A
control solenoid valve. B A
• If as specified, carry out the “Circuit Open/
Short Inspection”.
: Continuity : Airflow
Terminal Port
Step
A B A B
1
acxuuw00000026
2 B+ GND
acxuuw00000027

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harness for open or
short circuit (continuity check). VARIABLE SWIRL SOLENOID VALVE
WIRING HARNESS SIDE CONNECTOR

B A

acxuuw00000028

FUSE BOX
(MAIN RELAY)

B
FRONT
A E
D

acxuuw00002335

01-13–13
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INTAKE-AIR SYSTEM [L3 WITH TC]

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000029

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Variable swirl solenoid valve terminal B and PCM terminal 2AS
— Variable swirl solenoid valve terminal A and main relay terminal E

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Variable swirl solenoid valve terminal A and body ground
— Variable swirl solenoid valve terminal B and power supply
— Variable swirl solenoid valve terminal B and body ground
End Of Sie
WASTEGATE CONTROL SOLENOID VALVE INSPECTION[L3 WITH TC]
WM: AIR CHARGING PRESSURE COMPONENT

id011339800600
1. Remove the wastegate control solenoid valve. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
INSTALLATION[L3 WITH TC].)
2. Inspect the airflow between the ports under the
following conditions.
• If not as specified, replace the wastegate B A
control solenoid valve. B A
• If as specified, carry out the “Circuit Open/
Short Inspection”.
: Continuity : Airflow
Terminal Port
Step
A B A B
1
acxuuw00000030
2 B+ GND
acxuuw00000031

01-13–14
1871-1U-06B(01-13).fm 15 ページ ２００６年３月１５日 水曜日 午前１０時４４分

INTAKE-AIR SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harness for an open
or short circuit (continuity check).

WASTEGATE CONTROL
SOLENOID VALVE
WIRING HARNESS SIDE CONNECTOR
01-13

B A

acxuuw00000032

FUSE BOX
(MAIN RELAY)

B
FRONT
A E
D

acxuuw00002335

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000033

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Wastegate control solenoid valve terminal B and PCM terminal 2AA
— Wastegate control solenoid valve terminal A and main relay terminal E

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Wastegate control solenoid valve terminal A and body ground
— Wastegate control solenoid valve terminal B and power supply
— Wastegate control solenoid valve terminal B and body ground
End Of Sie

01-13–15
1871-1U-06B(01-13).fm 16 ページ ２００６年３月１５日 水曜日 午前１０時４４分

INTAKE-AIR SYSTEM [L3 WITH TC]

WASTEGATE ACTUATOR INSPECTION[L3 WITH TC]
id011339800700
1. Remove the air hose and air duct. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC])
2. Disconnect the hose from the wastegate actuator.
3. Plug the wastegate actuator as shown in the
figure.
4. Connect the vacuum pump to the port

49 H080 740A

WASTEGATE
ACTUATOR

ROD

PLUG

acxuuw00000663

5. Raise the pressure slowly and take a WASTEGATE ACTUATOR

measurement of the pressure when the rod stroke OPERATION CHARACTERISTIC
110 {825, 32}
OPERATION PRESSURE

is 1.5 mm {0.06 in}.

• If the rod does not move, replace the PRESSURIZATION
(kPa {mmHg, inHg})

100 {750, 30}

turbocharger. 90 {675, 27}
80 {600, 24}
Specification (rod stroke: 1.5 mm {0.06 in})
DEPRESSURIZATION
78.0— 83.4 kPa {586— 625 mmHg, 23.1— 70 {525, 21}
24.6 inHg} 60 {450, 18}
0.0 1.0 2.0 3.0 4.0 5.0
{0.0} {0.039} {0.079} {0.12} {0.16} {0.20}
End Of Sie
WM: TC
ROD STROKE (mm {in})
acxuuw00000664

01-13–16
1871-1U-06B(01-13).fm 17 ページ ２００６年３月１５日 水曜日 午前１０時４４分

INTAKE-AIR SYSTEM [L3 WITH TC]

TURBOCHARGER INSPECTION[L3 WITH TC]
id011339801000
Compressor Wheel Inspection
1. Remove the turbocharger. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Visually inspect the compressor wheel from view
A for the cracks, damage, or bending on all the
compressor wheel blades.
• If there are any cracks or damage, replace the
turbocharger. 01-13
A
Note
• If there is contact between the compressor
wheel and compressor housing, there may
be cracks, damage, or bending on the blade
end area.
• If there are cracks, damage, or bending on
the compressor wheel, verify the following
after replacing the turbocharger.
— Intake air/exhaust system related COMPRESSOR
components WHEEL
— Oil pipe damage
acxuuw00000477

Turbine wheel inspection

1. Remove the turbocharger. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Visually inspect the turbine wheel from view B for
the cracks, damage, or bending on all the turbine
wheel blades.
• If there are cracks, damage, or bending on the
turbine wheel, replace the turbocharger.

Note
• If there is contact between the turbine wheel
and turbine housing, there may be cracks,
damage, or bending on the blade end area.
B
• If there are cracks, damage, or bending on
the turbine wheel, verify the following after
replacing the turbocharger.
— Intake air/exhaust system related
components TURBINE WHEEL
— Oil pipe damage

End Of Sie
WM: ACCELERATOR PEDAL
acxuuw00000478

ACCELERATOR PEDAL REMOVAL/INSTALLATION[L3 WITH TC]

id011339801400
1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table.
1 Connector 1
2 Accelerator pedal 3
7.8—10.8 {80—110, 69—95}
3. Install in the reverse order of removal.
End Of Sie

7.8—10.8 {80—110, 69—95}

2
N·m {kgf·cm, in·lbf}

acxuuw00002531

01-13–17
1871-1U-06B(01-14).fm 1 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

01-14 FUEL SYSTEM [L3 WITH TC]
FUEL SYSTEM LOCATION INDEX FUEL PUMP RESISTOR
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-14–2 REMOVAL/INSTALLATION
Engine Room Side . . . . . . . . . . . . . . . . 01-14–2 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-14–15
Fuel Tank Side . . . . . . . . . . . . . . . . . . . 01-14–3 FUEL PUMP RESISTOR INSPECTION
FUEL SYSTEM DIAGRAM [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-14–16
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-14–3 Resistance Inspection . . . . . . . . . . . . . . 01-14–16 01-14
BEFORE REPAIR PROCEDURE HIGH PRESSURE FUEL PUMP
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-14–4 REMOVAL/INSTALLATION
Fuel Line Safety Procedure . . . . . . . . . 01-14–4 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-14–16
AFTER REPAIR PROCEDURE Fuel Leakage Inspection After High
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-14–4 Pressure Fuel Pump Installation . . . . . 01-14–18
Fuel Leakage Inspection . . . . . . . . . . . 01-14–4 HIGH PRESSURE FUEL PUMP
FUEL LINE PRESSURE INSPECTION INSPECTION[L3 WITH TC]. . . . . . . . . . 01-14–19
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-14–5 QUICK RELEASE CONNECTOR
Low Pressure Line (From the Fuel Tank REMOVAL/INSTALLATION
to the High Pressure [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-14–19
Fuel Pump) . . . . . . . . . . . . . . . . . . . . 01-14–5 Quick Release Connector Type. . . . . . . 01-14–19
High Pressure Line (From the High Type A Removal . . . . . . . . . . . . . . . . . . 01-14–20
Pressure Fuel Pump to the Type B Removal . . . . . . . . . . . . . . . . . . 01-14–21
Fuel Injector) . . . . . . . . . . . . . . . . . . . 01-14–6 Type C Removal . . . . . . . . . . . . . . . . . . 01-14–22
FUEL TANK REMOVAL/INSTALLATION Type A Installation . . . . . . . . . . . . . . . . . 01-14–22
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-14–7 Type B Installation . . . . . . . . . . . . . . . . . 01-14–23
Rivet Removal Note . . . . . . . . . . . . . . . 01-14–9 Type C Installation. . . . . . . . . . . . . . . . . 01-14–23
Fuel-filler Pipe Removal Note . . . . . . . 01-14–9 FUEL INJECTOR
Joint Hose Installation Note . . . . . . . . . 01-14–9 REMOVAL/INSTALLATION
Breather Hose Installation Note . . . . . . 01-14–10 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-14–23
FUEL SHUT-OFF/ROLLOVER VALVE High Pressure Line Pipe
INSPECTION[L3 WITH TC]. . . . . . . . . . 01-14–10 Removal Note . . . . . . . . . . . . . . . . . . . 01-14–24
FUEL PUMP UNIT Fuel Injector Removal Note. . . . . . . . . . 01-14–25
REMOVAL/INSTALLATION Fuel Delivery Pipe
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-14–11 Installation Note . . . . . . . . . . . . . . . . . 01-14–26
FUEL PUMP UNIT High Pressure Line Pipe
DISASSEMBLY/ASSEMBLY Installation Note . . . . . . . . . . . . . . . . . 01-14–26
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-14–13 FUEL INJECTOR INSPECTION
FUEL PUMP UNIT INSPECTION [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-14–27
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-14–13 Operation Test . . . . . . . . . . . . . . . . . . . . 01-14–27
Continuity Inspection . . . . . . . . . . . . . . 01-14–13 Resistance Inspection . . . . . . . . . . . . . . 01-14–27
Circuit Open/Short Inspection . . . . . . . 01-14–14 Circuit Open/Short Inspection . . . . . . . . 01-14–28
Fuel Pump Hold PRESSURE REGULATOR INSPECTION
Pressure Inspection . . . . . . . . . . . . . . 01-14–14 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-14–28

End of Toc
WM: FUEL SYSTEM

01-14–1
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FUEL SYSTEM [L3 WITH TC]

FUEL SYSTEM LOCATION INDEX[L3 WITH TC]
id011439800100
Engine Room Side

3
5
1

7
6

acxuuw00000154
.

1 Fuel injector 4 High pressure fuel pump

(See01-14-23 FUEL INJECTOR REMOVAL/ (See01-14-16 HIGH PRESSURE FUEL PUMP
INSTALLATION[L3 WITH TC].) REMOVAL/INSTALLATION[L3 WITH TC].)
(See01-14-27 FUEL INJECTOR INSPECTION[L3 (See01-14-19 HIGH PRESSURE FUEL PUMP
WITH TC].) INSPECTION[L3 WITH TC].)
2 Fuel delivery pipe 5 Fuel pump relay
(See01-14-23 FUEL INJECTOR REMOVAL/ 6 Fuel pump speed control relay
INSTALLATION[L3 WITH TC].)
7 Fuel pump resistor
3 Fuel pressure sensor (See01-14-15 FUEL PUMP RESISTOR REMOVAL/
(See01-14-23 FUEL INJECTOR REMOVAL/ INSTALLATION[L3 WITH TC].)
INSTALLATION[L3 WITH TC].) (See01-14-16 FUEL PUMP RESISTOR
(See01-40-35 FUEL PRESSURE SENSOR INSPECTION[L3 WITH TC].)
INSPECTION[L3 WITH TC].)

01-14–2
1871-1U-06B(01-14).fm 3 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

Fuel Tank Side

3
01-14

acxuuw00000155

1 Fuel tank 3 Nonreturn valve

(See01-14-7 FUEL TANK REMOVAL/ 4 Fuel filler pipe
INSTALLATION[L3 WITH TC].)
2 Fuel pump unit
(See01-14-11 FUEL PUMP UNIT REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-14-13 FUEL PUMP UNIT DISASSEMBLY/
ASSEMBLY[L3 WITH TC].)
(See01-14-13 FUEL PUMP UNIT INSPECTION[L3
WITH TC].)

End Of Sie
FUEL SYSTEM DIAGRAM[L3 WITH TC]
id011439800200

HIGH PRESSURE
FUEL PUMP
FUEL TANK

PRESSURE REGULATOR
FUEL INJECTOR

FUEL PRESSURE
FUEL PUMP SENSOR

D6U114ZWC006

End Of Sie

01-14–3
1871-1U-06B(01-14).fm 4 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

BEFORE REPAIR PROCEDURE[L3 WITH TC]
id011439800300

Warning
• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep
sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and
damage. Fuel can also irritate skin and eyes. To prevent this, always complete the following “Fuel
Line Safety Procedure”.
• A person charged with static electricity could cause a fire or explosion, resulting in death or
serious injury. Before performing work on the fuel system, discharge static electricity by touching
the vehicle body.

Fuel Line Safety Procedure

Note
• Fuel in the fuel system is under high pressure even when the engine is not running.

1. Remove the fuel-filler cap and release the pressure in the fuel tank.
2. Remove the fuel pump relay.
3. Start the engine.
4. After the engine stalls, crank the engine several
times. MAIN FUSE BLOCK
5. Turn the ignition switch to the LOCK position.
6. Install the fuel pump relay.
End Of Sie

FUEL PUMP RELAY

acxuuw00000262

AFTER REPAIR PROCEDURE[L3 WITH TC]

id011439800400

Warning
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and
damage. When installing the fuel hose, perform “Fuel Leakage Inspection” described below.

Fuel Leakage Inspection

Warning
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and
damage. Always carry out the following procedure with the engine stopped.
• A person charged with static electricity could cause a fire or explosion, resulting in death or
serious injury. Before performing work on the fuel system, discharge static electricity by touching
the vehicle body.

Caution
• Connecting to the wrong check connector terminal may cause a malfunction. Carefully connect
only to the specified terminal.

01-14–4
1871-1U-06B(01-14).fm 5 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

1. Start the fuel pump using the following procedure.
Using M-MDS
1. Connect the M-MDS to the DLC-2.
2. Using the simulation function “FP”, start the
fuel pump.
Without using M-MDS
1. Disconnect the negative battery cable.
2. Remove the fuel pump relay. 01-14
Caution
• Short the specified terminals because
shorting the wrong terminal of the main
fuse block may cause malfunctions.
DLC-2
acxuuw00000288

3. Using a jumper wire, short fuel pump relay

terminals C and D in the main fuse block. MAIN FUSE BLOCK
(FUEL PUMP RELAY)
4. Connect the negative battery cable and
operate the fuel pump. A E
2. Pressurize the system in this manner for at least
5 min to be sure there is no leakage. C
• If there is fuel leakage, inspect the fuel hoses, D
hose clamps, and fuel pipe sealing surface,
and replace if necessary.
3. After repair, assemble the system and repeat
Steps 1 to 3.
End Of Sie acxuuw00000183

FUEL LINE PRESSURE INSPECTION[L3 WITH TC]

id011439800500
Low Pressure Line (From the Fuel Tank to the High Pressure Fuel Pump)

Warning
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death.
Fuel can also irritate skin and eyes. To prevent this, always complete the “BEFORE REPAIR
PROCEDURE”. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)

Caution
• Disconnecting/connecting the quick release connector without cleaning it may possibly cause
damage to the fuel pipe and quick release connector. Always clean the quick release connector
joint area before disconnecting/connecting using cloth or soft brush, and make sure that it is free
of foreign material.

1. Complete the “BEFORE REPAIR PROCEDURE”.

(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC])
2. Disconnect the vacuum hose from the intake manifold that connecting to the power brake unit.
3. Disconnect the negative battery cable.

Caution
• The quick release connector may be damaged if the tab is turned too far. Do not turn the tab over
the stopper.

4. Disconnect the quick release connector from the fuel tank. (See01-14-19 QUICK RELEASE CONNECTOR
REMOVAL/INSTALLATION[L3 WITH TC].)
5. Push the SST quick release connector into the fuel pipe and plastic fuel hose into the SST until a click is heard.

01-14–5
1871-1U-06B(01-14).fm 6 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

6. Turn the lever parallel to the hose of the SST as shown.
49 B019 901B

49 N013 101A

49 N013 102A

acxuuw00000248

7. Connect the vacuum hose to the intake manifold that connecting to the brake booster.
8. Connect the negative battery cable.
9. Start the engine and let it idle. Measure the fuel line pressure.
• If not as specified, inspect the following:
Zero or low
— FP circuit
— FP
— Fuel line (clogged)
— Fuel leakage inside pressure regulator
High
— Pressure regulator for high pressure cause

Fuel line pressure

410— 490 kPa {4.2— 4.9 kgf/cm2, 60— 71 psi}

10. Turn the ignition switch to the LOCK position.

11. Measure the fuel hold pressure after 5 min.
• If not as specified, inspect the following:
— FP hold pressure
— Fuel injector for leakage
— Fuel line for improper routing, kinks or leakage

Fuel hold pressure

More than 230 kPa {2.3 kgf/cm2, 33 psi}

12. Complete the “BEFORE REPAIR PROCEDURE”.

(See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC])
13. Disconnect the vacuum hose from the intake manifold that connecting to the brake booster.
14. Disconnect the SST.
15. Connect the quick release connector. (See01-14-19 QUICK RELEASE CONNECTOR REMOVAL/
INSTALLATION[L3 WITH TC].)

High Pressure Line (From the High Pressure Fuel Pump to the Fuel Injector)
1. Inspect the fuel pressure sensor. (See01-40-35 FUEL PRESSURE SENSOR REMOVAL/INSTALLATION[L3
WITH TC].)
2. Inspect the high pressure fuel pump. (See01-40-35 FUEL PRESSURE SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
End Of Sie
WM: FUEL TANK

01-14–6
1871-1U-06B(01-14).fm 7 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

FUEL TANK REMOVAL/INSTALLATION[L3 WITH TC]
id011439801600

Warning
• Repairing a fuel tank that has not been properly steam-cleaned can be dangerous. Explosion or
fire may cause death or serious injury. Always properly steam clean a fuel tank before repairing it.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and
damage. Fuel can also irritate skin and eyes. To prevent this, do not damage the sealing surface of
the fuel pump unit when removing or installing. 01-14
• A person charged with static electricity could cause a fire or explosion, resulting in death or
serious injury. Before draining fuel, make sure to discharge static electricity by touching the
vehicle body.

Caution
• Disconnecting/connecting the quick release connector without cleaning it may cause damage to
the fuel pipe and quick release connector. Always clean the quick release connector joint area
before disconnecting/connecting using a cloth or soft brush, and make sure that it is free of
foreign material.

1. Level the vehicle.

2. Complete the “BEFORE REPAIR PROCEDURE”. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH
TC].)
3. Disconnect the negative battery cable.
4. Remove the rear seat cushion.
5. Remove the fuel pump unit. (See01-14-11 FUEL PUMP UNIT REMOVAL/INSTALLATION[L3 WITH TC].)
6. Remove the fuel gauge sender unit.
7. Siphon the fuel from the fuel tank.
8. Remove the middle pipe. (See01-15-2 EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
9. Remove the propeller shaft. (4WD) (See03-15-3 PROPELLER SHAFT REMOVAL/INSTALLATION.)
10. Remove the rear under cover (LR, RR).
11. Remove the rear parking brake cable installation bolts, then move the rear parking brake cable out of the way.
12. Disconnect the joint hose connected between the fuel tank and the fuel-filler pipe from the fuel-filler pipe.
13. Disconnect the breather hose connected between the fuel tank and the fuel-filler pipe from the fuel-filler pipe.
14. Disconnect the evaporative hose connected between the fuel tank and the charcoal canister from the charcoal
canister.

01-14–7
1871-1U-06B(01-14).fm 8 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

15. Remove in the order indicated in the table. .

A
9.0—13.0 N·m
B {92—132 kgf·cm, 80—115 in·lbf}
4

RIVET

43.1—60.8
{4.40—6.20, 31.8—44.8}

1
RIVET

43.1—60.8
{4.40—6.20, 31.8—44.8}

43.1—60.8
{4.40—6.20, 31.8—44.8}
N·m {kgf·m,ft·lbf}

acxuuw00000195

1 Strap 5 Evaporative hose (See 01-14-19 QUICK RELEASE

2 Fuel tank CONNECTOR REMOVAL/INSTALLATION[L3 WITH
TC])
3 Joint hose (See 01-14-9 Joint Hose Installation
Note) 6 Insulator (See 01-14-9 Rivet Removal Note)
4 Breather hose (See 01-14-10 Breather Hose 7 Fuel-filler cap
Installation Note) 8 Fuel-filler pipe (See 01-14-9 Fuel-filler Pipe
Removal Note)

01-14–8
1871-1U-06B(01-14).fm 9 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

16. Install in the reverse order of removal.
17. Complete the “AFTER REPAIR PROCEDURE”. (See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Rivet Removal Note

Caution
• Be careful not to damage the fuel tank when removing the rivet. If the fuel tank is damaged, it may
cause fuel leakage. 01-14
Note
• The insulator is installed using rivets.
• When resin stalling the rivet, install the same rivet or M5 bolt and nut.

1. Push out the mandrel using a hammer and punch HAMMER

(2—2.8 mm {0.08—0.11 in} diameter).

INSULATOR

FUEL TANK MANDREL

acxuuw00000260

2. Remove the flange using a drill (5 mm {0.20 in} drill bit).

DRILL

FLANGE
acxuuw00000261

Fuel-filler Pipe Removal Note

1. Remove the rear tire (LH).
2. Remove the mudguard (LH).
3. Remove the air filter.
4. Remove the fuel-filler pipe.

Joint Hose Installation Note

1. Install the joint hose and clamp as shown in the
figure.
30° 30°

CLAMP
TIGHTENING AREA

JOINT HOSE VIEW A

acxuuw00000265

01-14–9
1871-1U-06B(01-14).fm 10 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

Breather Hose Installation Note
1. Install the breather hose and clamp as shown in
the figure. CLAMP
End Of Sie
WM: FUEL SHUT-OFF VALVE
TIGHTENING AREA BREATHER HOSE

45°

45°

VIEW B

acxuuw00000266

FUEL SHUT-OFF/ROLLOVER VALVE INSPECTION[L3 WITH TC]

id011439801800

Caution
• Disconnecting/connecting the quick release connector without cleaning it may cause damage to
the fuel pipe and quick release connector. Always clean the quick release connector joint area
before disconnecting/connecting using a cloth or soft brush, and make sure that it is free of
foreign material.

Note
• This inspection is for fuel shut-off valve and rollover valve integrated in the fuel tank.

1. Disconnect the quick release connector and the fuel pump unit connector. (See01-14-11 FUEL PUMP UNIT
REMOVAL/INSTALLATION[L3 WITH TC].)
2. Remove the fuel tank with the fuel pump unit. (See01-14-7 FUEL TANK REMOVAL/INSTALLATION[L3 WITH
TC].)
3. Plug the port as shown in the figure.
4. Level the fuel tank. A
B PLUG

PLUG
FUEL PUMP UNIT

acxuuw00000122

5. Blow through port B and verify that there is airflow

FUEL PUMP UNIT
from port A.
• If there is no airflow, replace the fuel tank.
• If there is airflow, turn the fuel tank upside
down, and proceed to Step 6.
6. Blow through port B and verify that there is no
airflow from port A.
• If there is airflow, replace the fuel tank. PLUG
End Of Sie
WM: FUEL PUMP
C
B
A PLUG
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01-14–10
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FUEL SYSTEM [L3 WITH TC]

FUEL PUMP UNIT REMOVAL/INSTALLATION[L3 WITH TC]
id011439800900

Warning
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and
damage. Fuel can also irritate skin and eyes. To prevent this, always complete the “Fuel Line
Safety Procedure”.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and
damage. Fuel can also irritate skin and eyes. To prevent this, before performing the fuel pump unit 01-14
removal/installation, always complete the “Fuel Leak Inspection After Fuel Pump Unit
Installation”.
• A person charged with static electricity could cause a fire or explosion, resulting in death or
serious injury. Before draining fuel, make sure to discharge static electricity by touching the
vehicle body.

Caution
• Because the fuel tank is constructed such that the fuel level is higher than the installation surface
of the fuel pump, fuel leakage could occur. If the fuel gauge indicates a fuel level of half or more,
perform the following Steps 1-6 to drain approx. 10 L {11 US gal, 8.8 lmp gal} of fuel.
• Disconnecting/connecting the quick release connector without cleaning it may possibly cause
damage to the fuel pipe and quick release connector. Always clean the quick release connector
joint area before disconnecting/connecting using a cloth or soft brush, and make sure that it is
free of foreign material.
• To prevent the SST from coming off the fuel pump cap while performing the work, always perform
the removal/installation procedure with 2 people. One person presses the SST against cap from
directly above, while the other person rotates the SST.

1. Complete the “BEFORE REPAIR PROCEDURE”. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH
TC].)
2. Remove the rear seat cushion.
3. Remove the service hole cover.
SERVICE HOLE COVER

acxuuw00000510

4. Disconnect the quick release connector

QUICK RELEASE
connected to the fuel pump unit. FRONT CONNECTOR
5. Connect a long hose to the disconnected quick
release connector and drain the fuel into a
container used for collecting gasoline.

HOSE

acxuuw00000181

01-14–11
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FUEL SYSTEM [L3 WITH TC]

6. Start the fuel pump using the following procedure.
Using M-MDS
1. Connect the M-MDS to the DLC-2.
2. Using the simulation function “FP”, start the
fuel pump.
Without using M-MDS
1. Remove the fuel pump relay.

Caution
• Short the specified terminals because
shorting the wrong terminal of the main
fuse block may cause malfunctions.
DLC-2
acxuuw00000288
2. Using a jumper wire, short fuel pump relay
terminals C and D in the main fuse block. MAIN FUSE BLOCK
(FUEL PUMP RELAY)
3. Connect the negative battery cable and
operate the fuel pump. A E

Caution C
• The fuel pump could be damaged if it is D
operated (fuel pump idling) while there is
no fuel in the fuel tank. Verify the amount
of fuel being discharged from the hose
and stop operation of the fuel pump
when essentially no fuel is being
acxuuw00000183
discharged.

7. When essentially no fuel is being discharged, stop the fuel pump.

Using M-MDS
1. Using the simulation function “FP”, stop the fuel pump.
Without using M-MDS
1. Turn the ignition switch to LOCK position to stop the fuel pump.
2. Disconnect the jumper wire from the check connector.
8. Disconnect the negative battery cable.
9. Remove the fuel pump bracket installation screws.
10. Remove in the order indicated in the table.

1
6

5 R
2

4
3

acxuuw00000289

1 Connector 4 Fuel pump unit

2 Quick release connector 5 Packing
(See01-14-19 QUICK RELEASE CONNECTOR 6 Fuel pump bracket
REMOVAL/INSTALLATION[L3 WITH TC])
3 Quick release connector
(See01-14-19 QUICK RELEASE CONNECTOR
REMOVAL/INSTALLATION[L3 WITH TC])

11. Install in the reverse order of removal.

12. Complete the “AFTER REPAIR PROCEDURE”. (See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)
End Of Sie

01-14–12
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FUEL SYSTEM [L3 WITH TC]

FUEL PUMP UNIT DISASSEMBLY/ASSEMBLY[L3 WITH TC]
id011439801000

Warning
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and
damage. Fuel can also irritate skin and eyes. To prevent this, do not damage the sealing surface of
the fuel pump unit when removing or installing.

1. Disassemble in the order indicated in the table. 01-14

2. Assemble in the reverse order of disassembly. .

1 Fuel filter body

2 Fuel pressure regulator
3 Fuel pump
4 Transfer
1
5 Filter

End Of Sie
R
R
2
3
R
5
4
R

acxuuw00002338
FUEL PUMP UNIT INSPECTION[L3 WITH TC]
id011439801100
Continuity Inspection
Note
• Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Remove the rear seat cushion.
3. Remove the service hole cover.
4. Disconnect the fuel pump unit connector.
SERVICE HOLE COVER

acxuuw00000510
5. Inspect for continuity between fuel pump unit
connector terminals B and D. FUEL PUMP UNIT PUMP
• If there is no continuity, replace the fuel pump SIDE CONNECTOR
body.
• If as specified, carry out the “Circuit Open/
Short Inspection”. C A
D B

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01-14–13
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FUEL SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection
1. Inspect the following wiring harnesses as for open
FUEL PUMP UNIT FUSE BOX
or short circuit (continuity check). WIRING HARNESS SIDE CONNECTOR (FUEL PUMP RELAY)

A E

C A C
D B
D

acxuuw00000035

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Fuel pump unit terminal B and fuel pump relay terminal A
— Fuel pump unit terminal D and body ground

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Fuel pump unit terminal B and power supply
— Fuel pump unit terminal B and body ground
— Fuel pump unit terminal D and power supply

Fuel Pump Hold Pressure Inspection

Warning
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and
damage. Always carry out the following procedure with the engine stopped.

Caution
• Disconnecting/connecting the quick release connector without cleaning it may cause damage to
the fuel pipe and quick release connector. Always clean the quick release connector joint area
before disconnecting/connecting using a cloth or soft brush, and make sure that it is free of
foreign material.

Note
• Perform the following test only when directed.

1. Complete the “BEFORE REPAIR PROCEDURE”. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH
TC].)
2. Disconnect the negative battery cable.
3. Remove the battery and battery tray.

Caution
• The quick release connector may be damaged if the tab is bent excessively. Do not expand the tab
over the stopper.

4. Disconnect the quick release connector from the fuel tank. (See01-14-19 QUICK RELEASE CONNECTOR
REMOVAL/INSTALLATION[L3 WITH TC].)
5. Turn the lever 90° against the hose of the SST to
plug the SST outlet. 49 B019 901B
6. Push the SST quick release connector into the
fuel pipe until a click is heard. 49 N013 101A
LEVER
7. Set the fuel hose into a container to avoid fuel TO FUEL TANK
spills.

49 N013 102A

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01-14–14
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FUEL SYSTEM [L3 WITH TC]

8. Start the fuel pump using the following procedure.
Using M-MDS
1. Connect the negative battery cable.
2. Connect the M-MDS to the DLC-2.
3. Using the simulation function “FP”, start the
fuel pump.
Without using M-MDS
1. Remove the fuel pump relay. 01-14
Caution
• Short the specified terminals because
shorting the wrong terminal of the main
fuse block may cause malfunctions.
DLC-2
acxuuw00000288

2. Using a jumper wire, short fuel pump relay

terminals C and D in the main fuse block. MAIN FUSE BLOCK
(FUEL PUMP RELAY)
3. Connect the negative battery cable and
operate the fuel pump. A E
9. Turn the ignition switch to the LOCK position.
10. Measure the fuel pump hold pressure after 5 C
min. D
• If not as specified, replace the fuel pump after
inspecting the following:
— Fuel line for clogging or leakage

Fuel pump hold pressure

acxuuw00000183
More than 230 kPa {2.3 kgf/cm2, 33 psi}

11. Disconnect the jumper wire.

12. Disconnect the SST.
13. Connect the quick release connector. (See01-14-19 QUICK RELEASE CONNECTOR REMOVAL/
INSTALLATION[L3 WITH TC].)
End Of Sie
FUEL PUMP RESISTOR REMOVAL/INSTALLATION[L3 WITH TC]
id011439801200
1. Disconnect the negative battery cable. (See 01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
2. Remove the air cleaner. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Disconnect the fuel pump resistor connector.
4. Remove in the fuel pump resistor.

FUEL PUMP RESISTOR

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5. Install in the order as shown in the figure.

Tightening torque
4.2— 6.2 N·m {43— 63 kgf·cm, 38— 54 in·lbf} 2
6. Connect the fuel pump resistor connector.
End Of Sie

acxuuw00002403

01-14–15
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FUEL SYSTEM [L3 WITH TC]

FUEL PUMP RESISTOR INSPECTION[L3 WITH TC]
id011439801300
Resistance Inspection
1. Disconnect the negative battery cable. (See 01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
2. Remove the fuel pump resister. (See 01-14-15 FUEL PUMP RESISTOR REMOVAL/INSTALLATION[L3 WITH
TC].)
3. Verify that the continuity between the fuel pump
resister terminal A and B is within the
specification.
• If not within the specification, replace the fuel
A B
resistor.

Fuel pump resistor continuity

0.304— 0.336 ohms (20 °C {68 °F})

End Of Sie

acxuuw00002331

HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION[L3 WITH TC]

id011439801400

Caution
• Do not disassemble the high pressure fuel pump.
• Do not scratch or damage the fuel sealing surface of the high and low fuel ports.
• When removing the high pressure fuel pipe, secure the joint (pump side) so that it dose not rotate,
and loosen the screw (pipe side).

Note
• If the high pressure fuel pump is removed, replace the O-ring with a new one.

1. Complete the “BEFORE REPAIR PROCEDURE”. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH
TC].)
2. Disconnect the negative battery cable.
3. Remove the charge air cooler duct.
4. Disconnect the spill valve control solenoid valve connector.
5. Disconnect the quick release connector on the high pressure fuel pump. (See01-14-19 QUICK RELEASE
CONNECTOR REMOVAL/INSTALLATION[L3 WITH TC].)
6. Remove the battery and battery tray. (See01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
7. Remove the air duct. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC])

01-14–16
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FUEL SYSTEM [L3 WITH TC]

Warning
• If the high pressure fuel pump joint nut is loosened, fuel leakage may occur resulting in death or
serious injury, or damage to the equipment or the vehicle. Fuel can also irritate the skin and eyes.
When removing the high pressure line pipe, always tighten the high pressure line pipe installation
nut while fixing the high pressure fuel pump joint nut with a wrench. If the high pressure fuel pump
joint nut has rotated, replace the high pressure fuel pump with a new one.
8. Disconnect the high pressure line pipe of the high pressure fuel pump.
01-14
SPILL VALVE CONTROL DO NOT ALLOW JOINT
SOLENOID VALVE NUT TO ROTATE

JOINT NUT

HIGH PRESSURE LINE

PIPE INSTALLATION NUT

HIGH PRESSURE
WATER OUTLET CASE LINE PIPE
INSTALLATION BOLT
acxuuw00000291

(1) Fix the joint nut with a wrench on the high pressure fuel pump side as shown in the figure.
(2) Loosen the high pressure line pipe installation nut.
9. Drain engine coolant. (See01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
10. Loosen the water outlet case installation bolts securing the high pressure line pipe.
11. Remove the high pressure fuel pump.
8.5—11.5 N·m
{87—117 kgf·cm,
76—101 in·lbf}

OIL

O-RING R
OIL

acxuuw00000292
12. Remove the high pressure fuel pump cover.
13. Tighten the bolts on the high pressure fuel pump R 17—23 N·m
{1.8—2.3 kgf·m,
cover. 13—16 ft·lbf}

Tightening torque
17— 23 N·m {1.8— 2.3 kgf·m, 13— 16 ft·lbf}

acxuuw00000293

01-14–17
1871-1U-06B(01-14).fm 18 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

Caution
• If the high pressure fuel pump installation bolts are tightened with the high pressure fuel pump
tilted, the high pressure fuel pump may not operate correctly. Tighten the high pressure fuel pump
installation bolts in a few passes with equal torque.

14. Tighten the bolts on the high pressure fuel pump.

Tightening torque
8.5— 11.5 N·m {87— 117 kgf·cm, 76— 101 in·lbf}

Warning
• If the high pressure fuel pump joint nut is loosened, fuel leakage may occur resulting in death or
serious injury, or damage to the equipment or the vehicle. Fuel can also irritate the skin and eyes.
When installing the high pressure line pipe, always tighten the high pressure line pipe installation
nut while fixing the high pressure fuel pump joint nut with a wrench. If the high pressure fuel pump
joint nut has rotated, replace the high pressure fuel pump with a new one.

15. Assemble the high pressure line pipe.

SPILL VALVE CONTROL DO NOT ALLOW JOINT

SOLENOID VALVE NUT TO ROTATE

JOINT NUT

HIGH PRESSURE LINE

PIPE INSTALLATION NUT

HIGH PRESSURE
WATER OUTLET CASE LINE PIPE
INSTALLATION BOLT

acxuuw00000294

(1) Fix the joint nut with a wrench on the high pressure fuel pump side as shown in the figure.
(2) Tighten the high pressure line pipe installation nut.

Tightening torque
23.5— 35.5 N·m {2.40— 3.59 kgf·m, 17.4— 26.0 ft·lbf}

16. Tighten the water outlet case installation bolts.

Tightening torque
8— 11.5 N·m {82— 117 kgf·cm, 71— 101 in·lbf}

17. Install the quick release connector. (See01-14-19 QUICK RELEASE CONNECTOR REMOVAL/
INSTALLATION[L3 WITH TC].)

Fuel Leakage Inspection After High Pressure Fuel Pump Installation

1. Verify that the high pressure fuel pump is assembled securely.
2. Drive the vehicle starting from a standstill and brake suddenly five to six times at a low speed.
3. Stop the vehicle and verify from outside the vehicle that there is no fuel leakage around the high pressure fuel
pump.
End Of Sie

01-14–18
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FUEL SYSTEM [L3 WITH TC]

HIGH PRESSURE FUEL PUMP INSPECTION[L3 WITH TC]
id011439801500

Note
• Perform the following inspection only when directed.
• The following vacuum values are indicated by relative pressure from the fuel pressure sensor.

1. Verify that the fuel pressure sensor is normal. (See01-40-35 FUEL PRESSURE SENSOR INSPECTION[L3
WITH TC].)
01-14
2. Connect the M-MDS to the DLC-2.
3. Turn the ignition switch to the ON position (Engine
off).
4. Select the FUEL_PRES, and LOAD, RPM PIDs
on the M-MDS.

Caution
• If the engine is run at a high speed, it
could be damaged. When racing the
engine, do not race it up to 6,700 rpm or
more.
DLC-2
acxuuw00000263
5. After the LOAD PID is 60% or more while the
engine is raced with the accelerator pedal fully
depressed, verify that the FUEL_PRES PID is approx. 11.5Mpa.
— If not as verified, replace the high pressure fuel pump.
End Of Sie
QUICK RELEASE CONNECTOR REMOVAL/INSTALLATION[L3 WITH TC]
WM: QUICK RELEASE CONNECTOR

id011439801700

Warning
• Fuel is very flammable liquid. If fuel spills or leaks from the pressurized fuel system, it will cause
serious injury or death and facility breakage. Fuel can also irritate skin and eyes. To prevent this,
always complete the “Fuel Line Safety Procedure”, while referring to the “BEFORE SERVICE
PRECAUTION”.

Quick Release Connector Type

Caution
• There are three types of quick release connectors. Verify the type and location, and install/remove
properly.

C
A
B A
B B

C
C

acxuuw00000053

01-14–19
1871-1U-06B(01-14).fm 20 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

Type A Removal
1. Follow “BEFORE REPAIR PROCEDURE” before performing any work operations to prevent fuel from spilling
from the fuel system. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)

Caution
• The quick release connector may be damaged if the release tab is bent excessively. Do not expand
the release tab over the stopper.

Note
• The fuel hose can be removed by pushing it to the pipe side to release the lock.

2. Rotate the release tab on the quick release

connector to the stopper position.

RELEASE TAB
STOPPER

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3. Pull out the fuel hose straight from the fuel pipe
and disconnect it.

FUEL PIPE FUEL HOSE

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4. Cover the disconnected quick release connector

and fuel pipe with vinyl sheeting or a similar
material to prevent it from scratches or dirt.

acxuuw00000056

01-14–20
1871-1U-06B(01-14).fm 21 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

Type B Removal

Caution
• Be careful not to damage the pipe when unlocking the retainer.

Note
• When removing the quick connector, either SST 49 E042 001 or 49 N013 103A.
01-14
When using SST 49 N013 103A
1. Follow “BEFORE SERVICE PRECAUTION” and remove dirt from the connecting surfaces before performing
any work operations. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
2. Insert the SST into the quick release connector.
3. Pull out the fuel hose straight from the fuel pipe
and disconnect it.
QUICK RELEASE CONNECTOR
4. Cover the disconnected quick release connector
and fuel pipe with vinyl sheeting or a similar
material to prevent it from scratches or dirt.

FUEL PIPE
49 N013 103A

acxuuw00002337

When using SST 49 E042 001

Note
• If the quick release connector is removed, replace the retainer with a new one.

1. Follow “BEFORE SERVICE PRECAUTION” and remove dirt from the connecting surfaces before performing
any work operations. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)

Note
• The retainer is attached to the pipe even after the connector is disconnected.

2. Set the SST parallel to the quick release

connector. 49 E042 001

Note
• The quick release connector can be
removed by pushing the center of the
retainer tabs.

3. Hold the center of the retainer tabs with the SST

ends and press the retainer.
4. Pull the connector side and disconnect the quick
release connector.
acxuuw00000057

5. Raise a retainer tab using the SST and remove

the retainer.
6. Cover the disconnected quick release connector
49 E042 001
and evaporative hose with vinyl sheeting or a
similar material to prevent it from scratches or dirt.

R RETAINER

acxuuw00000058

01-14–21
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FUEL SYSTEM [L3 WITH TC]

Type C Removal
1. Follow “BEFORE REPAIR PROCEDURE” and remove dirt from the connecting surfaces before performing any
work operations. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH TC].)
2. Move the retainer upward using a small flathead
screwdriver or a similar tool. FLATHEAD
SCREWDRIVER RETAINER
3. Pull out the fuel hose straight from the fuel pipe
and disconnect it.

QUICK RELEASE
CONNECTOR
acxuuw00000059

4. Cover the disconnected quick release connector

and fuel pipe with vinyl sheeting or a similar
material to prevent it from scratches or dirt.

acxuuw00000056

Type A Installation

Note
• If the quick release connector O-ring is damaged or has slipped, replace the fuel hose.
• A checker tab is integrated with the quick
release connector for new fuel hoses and
evaporative hoses. Remove the checker tab CHECKER TAB
from the quick release connector after the
connector is completely engaged with the
fuel pipe.

1. Inspect the fuel hose and fuel pipe sealing

surface for damage and deformation.
• If there is any malfunction, replace it with a NEW FUEL HOSE
new one.
2. Apply a small amount of clean engine oil to the
acxuuw00000060
sealing surface of the fuel pipe.
3. Reconnect the fuel hose straight to the fuel pipe
until a click is heard.

Note
• If the quick release connector does not move at all, disconnect it, verify that the O-ring is not damaged or
has not slipped, and then reconnect the quick release connector.

4. Lightly pull and push the quick release connector a few times by hand, and then verify that it can move 2.0—
3.0 mm {0.08— 0.12 in} and is connected securely.
5. Inspect all related parts by performing “AFTER REPAIR PROCEDURE”. (See01-14-4 AFTER REPAIR
PROCEDURE[L3 WITH TC].)

01-14–22
1871-1U-06B(01-14).fm 23 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

Type B Installation

Note
• If the quick release connector O-ring is damaged or has slipped, replace the fuel hose.
• A checker tab is integrated with the quick
release connector for new fuel hoses and
evaporative hoses. Remove the checker tab CHECKER TAB
from the quick release connector after the 01-14
connector is completely engaged with the
fuel pipe.

Caution
• Be sure to replace the retainer with a new
one to prevent gas leakage. NEW FUEL HOSE
• To prevent evaporative gas leakage, be
sure not to damage the connecting part
acxuuw00000060
between the charcoal canister and pipe,
and the locks between the quick release
connector and retainer. If any of them are damaged, replace the charcoal canister or hose with a
new one.

1. Remove the retainer remaining on the charcoal canister pipe.

2. Install a new retainer to the quick release connector.
3. Reconnect the hose straight to the pipe until a click is heard.
4. Lightly pull and push the quick release connector a few times by hand, and then verify that it is connected
securely.
5. Inspect all related parts by performing “AFTER REPAIR PROCEDURE”. (See01-14-4 AFTER REPAIR
PROCEDURE[L3 WITH TC].)

Type C Installation

Note
• If the quick release connector O-ring is damaged or has slipped, replace the fuel hose.

1. Inspect the fuel hose and fuel pipe sealing surface for damage and deformation.
• If there is any malfunction, replace it with a new one.
2. Install the quick release connector.
• Insert the fuel pipe straight to the end of the
quick release connector. 2
• Push down the retainer using a finger.
— If the retainer cannot be pushed down,
push the fuel pipe further to the quick
release connector.
1
3. Lightly pull and push the quick release connector
a few times by hand, and then verify that it is
connected securely.
4. Inspect all related parts by performing “AFTER
REPAIR PROCEDURE”. (See01-14-4 AFTER
acxuuw00000061
REPAIR PROCEDURE[L3 WITH TC].)
End Of Sie
FUEL INJECTOR REMOVAL/INSTALLATION[L3 WITH TC]
WM: FUEL INJECTOR

id011439800600

Caution
• Disconnecting/connecting the quick release connector without cleaning it may cause damage to
the fuel pipe and quick release connector. Always clean the quick release connector joint area
before disconnecting/connecting using a cloth or soft brush, and make sure that it is free of
foreign material.

Note
• When the fuel pressure sensor replaces, replace a new fuel delivery pipe with a new fuel pressure
sensor.(See 01-14-23 FUEL INJECTOR REMOVAL/INSTALLATION[L3 WITH TC])

01-14–23
1871-1U-06B(01-14).fm 24 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

1. Complete the “BEFORE REPAIR PROCEDURE”. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH
TC].)
2. Disconnect the negative battery cable.
3. Remove the intake manifold. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove in the order indicated in the table. .

8—11.5 N·m
17—23 21.5—25.5
{82—117 kgf·cm,
{1.8—2.3, 13—16} {2.20—2.60, 15.9—18.8}
71—101 in·lbf}
2

R
1

17—23
{1.8—2.3,
R 13—16}
5
16—24
SST {1.7—2.4, 12—17}
4
3
N·m {kgf·m, ft·lbf}

acxuuw00000267

1 High pressure line pipe 2 Fuel delivery pipe

(See01-14-24 High Pressure Line Pipe Removal (See01-14-26 Fuel Delivery Pipe Installation Note.)
Note.) 3 Fuel injector bracket
(See01-14-26 High Pressure Line Pipe Installation
Note.) 4 Fuel injector
(See01-14-25 Fuel Injector Removal Note.)
5 Relief valve

5. Install in the reverse order of removal.

6. Complete the “AFTER REPAIR PROCEDURE”. (See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

High Pressure Line Pipe Removal Note

1. Drain engine coolant. (See01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
2. Disconnect the high pressure line pipe of the high pressure fuel pump. (See01-14-16 HIGH PRESSURE FUEL
PUMP REMOVAL/INSTALLATION[L3 WITH TC].)

SPILL VALVE CONTROL DO NOT ALLOW JOINT

SOLENOID VALVE NUT TO ROTATE

JOINT NUT

HIGH PRESSURE LINE

PIPE INSTALLATION NUT

HIGH PRESSURE
WATER OUTLET CASE LINE PIPE
INSTALLATION BOLT
acxuuw00000268
(1) Fix the joint nut with a wrench on the high pressure fuel pump side as shown in the figure.
(2) Loosen the high pressure line pipe installation nut.
3. Remove the high pressure line pipe.

01-14–24
1871-1U-06B(01-14).fm 25 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

Fuel Injector Removal Note

Note
• Depending on the driving conditions, carbon may accumulate on the inserted part of the fuel injector,
causing the fuel injector to stick. Remove the fuel injector using the following procedure.

1. Install the SST to the fuel injector confirming that

the SST faces the correct direction as shown in 01-14
the figure.

Caution
• If the SST slips while ratcheting up the
fuel injector, the fuel injector or 49 G013 101
surrounding parts could be damaged.
Press fit the SST to the fuel injector firmly
and operate carefully. DEEP OPENING
• When ratcheting up the fuel injector, the SIDE
fuel injector connector may contact the
cylinder head and damage the fuel
injector. Ratchet up the fuel injector so CONNECTOR
that the fuel injector connector does not SIDE R OIL

contact the cylinder head.

FUEL
INJECTOR

GASKET
R
OIL

acxuuw00000269

Note
• If fuel injector No.3 contacts the oil
separator, cut the tab on the oil separator as
shown in the figure. Carefully cut the tab so
that the oil separator is not deformed or 6 mm {0.2 in}
TAB
damaged, with no clearance on the mating OR LESS
surfaces of the oil separator and engine.

PCV VALVE

acxuuw00000270

2. Keep ratcheting the SST so that the fuel injector becomes free enough to ratchet up without using the SST.

Caution
• Do not apply excessive force to the fuel injector connector because the fuel injector could be
damaged.

3. Pull out the fuel injector by ratcheting it upright.

4. Verify that there are no gasket in the cylinder heads after removing the fuel injectors.

Warning
• If foreign material such as metal shavings penetrates the fuel injector installation hole on the
cylinder block, the engine could be damaged. Remove all foreign material and cap the fuel injector
installation hole after removing the fuel injector.

5. Clean the fuel injector and around the insertion hole using a vacuum cleaner.

01-14–25
1871-1U-06B(01-14).fm 26 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

Fuel Delivery Pipe Installation Note
1. Tighten the bolts in the order shown in the figure.

Tightening torque 4 2 1 3 5
17— 23 N·m {1.8— 2.3 kgf·m, 13— 16 ft·lbf}

FUEL DELIVERY PIPE

acxuuw00000271

High Pressure Line Pipe Installation Note

1. Temporarily tighten the bolts in the order shown in the figure.

1
2
3 4
acxuuw00000272

2. Tighten No.1 bolts shown in the figure.

Tightening torque
17— 23 N·m {1.8— 2.3 kgf·m, 13— 16 ft·lbf}

01-14–26
1871-1U-06B(01-14).fm 27 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

3. Tighten No.2 bolts shown in the figure.

SPILL VALVE CONTROL DO NOT ALLOW JOINT

SOLENOID VALVE NUT TO ROTATE

01-14
JOINT NUT

HIGH PRESSURE LINE

PIPE INSTALLATION NUT

HIGH PRESSURE
WATER OUTLET CASE LINE PIPE
INSTALLATION BOLT
acxuuw00000273

(1) Fix the joint nut with a wrench on the high pressure fuel pump side as shown in the figure.
(2) Tighten the high pressure line pipe installation nut.

Tightening torque
23.5— 35.5 N·m {2.40— 3.61 kgf·m, 17.4— 26.1 ft·lbf}

4. Tighten No.3, No.4 bolts shown in the figure.

Tightening torque
17— 23 N·m {1.8— 2.3 kgf·m, 13— 16 ft·lbf}

End Of Sie
FUEL INJECTOR INSPECTION[L3 WITH TC]
id011439800700
Operation Test
1. Carry out the “Fuel Injector Operation Inspection”. (See01-03-78 ENGINE CONTROL SYSTEM OPERATION
INSPECTION[L3 WITH TC].)
• If not as specified, perform the further inspection for the fuel injectors.

Resistance Inspection

Note
• Perform the following procedure only when directed.

1. Turn the ignition switch to the LOCK position.

2. Disconnect the negative battery cable.
3. Remove the fuel delivery pipe. (See 01-14-23 FUEL INJECTOR REMOVAL/INSTALLATION[L3 WITH TC].)
4. Disconnect the fuel injector connectors.
5. Measure the resistance of the fuel injector using a
tester.
• If not as specified, replace the fuel injector.
(See01-14-23 FUEL INJECTOR REMOVAL/ A B
INSTALLATION[L3 WITH TC].)
• If as specified but “Operation Test” is failed,
carry out the “Circuit Open/Short Inspection”.
Inspect for open or short circuit.

Fuel injector resistance

1.0— 1.2 ohms [20 °C {68 °F}]
acxuuw00000038

01-14–27
1871-1U-06B(01-14).fm 28 ページ ２００６年３月１５日 水曜日 午前１０時４５分

FUEL SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an
open or short circuit (continuity check).
FUEL INJECTOR
WIRING HARNESS SIDE CONNECTOR

A B

acxuuw00000039

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000040

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— No.1 cylinder fuel injector terminal A and PCM terminal 2BB
— No.2 cylinder fuel injector terminal A and PCM terminal 2BC
— No.3 cylinder fuel injector terminal A and PCM terminal 2BD
— No.4 cylinder fuel injector terminal A and PCM terminal 2AZ
— No.1 cylinder fuel injector terminal B and PCM terminal 2BG
— No.2 cylinder fuel injector terminal B and PCM terminal 2BH
— No.3 cylinder fuel injector terminal B and PCM terminal 2BH
— No.4 cylinder fuel injector terminal B and PCM terminal 2BG
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— No.1 cylinder fuel injector terminal A and power supply
— No.1 cylinder fuel injector terminal A and body ground
— No.2 cylinder fuel injector terminal A and power supply
— No.2 cylinder fuel injector terminal A and body ground
— No.3 cylinder fuel injector terminal A and power supply
— No.3 cylinder fuel injector terminal A and body ground
— No.4 cylinder fuel injector terminal A and power supply
— No.4 cylinder fuel injector terminal A and body ground
— No.1 cylinder fuel injector terminal B and power supply
— No.1 cylinder fuel injector terminal B and body ground
— No.2 cylinder fuel injector terminal B and power supply
— No.2 cylinder fuel injector terminal B and body ground
— No.3 cylinder fuel injector terminal B and power supply
— No.3 cylinder fuel injector terminal B and body ground
— No.4 cylinder fuel injector terminal B and power supply
— No.4 cylinder fuel injector terminal B and body ground
End Of Sie
PRESSURE REGULATOR INSPECTION[L3 WITH TC]
WM: PRESSURE REGULATOR

id011439800800

Note
• Due to the adoption of the mechanical returnless fuel system, the pressure regulator cannot be inspected
separately.
1. Perform “FUEL LINE PRESSURE INSPECTION”. (See 01-14-5 FUEL LINE PRESSURE INSPECTION[L3
WITH TC].)
End Of Sie

01-14–28
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EXHAUST SYSTEM [L3 WITH TC]
01-15 EXHAUST SYSTEM [L3 WITH TC]
EXHAUST SYSTEM INSPECTION Exhaust Manifold Insulator (Upper)
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-15–1 Removal Note . . . . . . . . . . . . . . . . . . . 01-15–3
EXHAUST SYSTEM WU-TWC Removal Note . . . . . . . . . . . . 01-15–3
REMOVAL/INSTALLATION Exhaust Manifold
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-15–2 Installation Note . . . . . . . . . . . . . . . . . 01-15–4
Seal Ring Removal Note . . . . . . . . . . . 01-15–3 WU-TWC Installation Note . . . . . . . . . . 01-15–4 01-15
HO2S Removal Note . . . . . . . . . . . . . . 01-15–3 Seal Ring Installation Note . . . . . . . . . . 01-15–4

End of Toc
EXHAUST SYSTEM INSPECTION[L3 WITH TC]
WM: EXHAUST SYSTEM

id011539800100
1. Start the engine and inspect each exhaust system component for exhaust gas leakage.
• If there is leakage, repair or replace if necessary.
End Of Sie

01-15–1
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EXHAUST SYSTEM [L3 WITH TC]
EXHAUST SYSTEM REMOVAL/INSTALLATION[L3 WITH TC]
id011539800200

Warning
• A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they
are cool before removing the exhaust system.
1. Disconnect the negative battery cable.
2. Remove the charge air cooler duct.
3. Remove the charge air cooler cover. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC])
4. Remove the charge air cooler. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC])
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.
7.8—10.8 N·m
{80—110 kgf·cm,
70—95 in·lbf}

43—64
{4.4—6.5, 32—47} 8

43—64
{4.4—6.5, 32—47} TURBOCHARGER
R 14

R
7.8—10.8 N·m
15 {80—110 kgf·cm,
10 70—95 in·lbf}
7 29—49
6 {3.0—4.9, 22—36}
SST
7.8—10.8 N·m 29—49 9 11
{80—110 kgf·cm, {3.0—4.9, 22—36}
70—95 in·lbf} 13
SST 4
R R A
SST
2
38—51 R
{3.9—5.2, 29—37} 5
SST
12
38—51
{3.9—5.2, 29—37}

38—51
{3.9—5.2, 29—37}

3 1

N·m {kgf·m, ft·lbf}

acxuuw00002568
.

01-15–2 Revised 3/2007 (Ref. No. R051/07)

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EXHAUST SYSTEM [L3 WITH TC]
1 Main silencer 8 Exhaust manifold insulator (Upper)
2 Seal ring (middle pipe side) (See 01-15-3 Exhaust Manifold Insulator (Upper)
(See 01-15-3 Seal Ring Removal Note.) Removal Note.)
(See 01-15-4 Seal Ring Installation Note.)
9 Front HO2S
3 Middle pipe (See01-15-3 HO2S Removal Note.)
4 Front pipe 10 Exhaust manifold insulator (Lower)
5 Seal ring (WU-TWC side) 11 WU-TWC insulator
(See 01-15-3 Seal Ring Removal Note.) 01-15
12 WU-TWC bracket
(See 01-15-4 Seal Ring Installation Note.)
13 WU-TWC
6 Clip
(See 01-15-3 WU-TWC Removal Note.)
7 Rear HO2S (See 01-15-4 WU-TWC Installation Note.)
(See 01-15-3 HO2S Removal Note.)
14 Exhaust manifold
(See 01-15-4 Exhaust Manifold Installation Note.)
15 Exhaust manifold gasket

Seal Ring Removal Note

1. Remove the seal ring using a flathead screwdriver
being careful not to damage the pipe. SEAL RING

FLATHEAD SCREWDRIVER
acxuuw00002569

HO2S Removal Note

1. Remove the HO2S using the SST before
removing the exhaust manifold.

49 L018 001

49 L018 001

acxuuw00000172

Exhaust Manifold Insulator (Upper) Removal Note

1. Remove the charge air cooler bracket.
2. Remove the exhaust manifold insulator (upper)

WU-TWC Removal Note

2WD
1. Remove the generator duct. (See 01-17-4 GENERATOR REMOVAL/INSTALLATION[L3 WITH TC])
2. Remove the WU-TWC.

4WD
1. Remove the cowl grille.
2. Remove the windshield wiper motor.
3. Remove the cowl panel. (See 09-10-13 COWL PANEL REMOVAL/INSTALLATION)
4. Remove the generator duct. (See 01-17-4 GENERATOR REMOVAL/INSTALLATION[L3 WITH TC])
5. Set the generator out of the way.
6. Remove the WU-TWC.

01-15–3
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EXHAUST SYSTEM [L3 WITH TC]
Exhaust Manifold Installation Note
1. Tighten the exhaust manifold installation nuts in
the order shown.

Tightening torque
43— 64 N·m {4.4— 6.5 kgf·m, 32— 47 ft·lbf}
8 2 3
7

9
10
6 4 1 5

acxuuw00000175

WU-TWC Installation Note

1. Temporarily tighten No.1 shown in the figure.
2. Temporarily tighten No.2 shown in the figure.
3. Temporarily tighten No.3 shown in the figure.
4. Completely tighten No.1 shown in the figure.

Tightening torque
38— 51 N·m {3.9— 5.2 kgf·m, 29— 37 ft·lbf}

5. Completely tighten No.2 shown in the figure. 1 R

Tightening torque
38—51 N·m
38— 51 N·m {3.9— 5.2 kgf·m, 29— 37 ft·lbf} {3.9—5.2 kgf·m, 29—37 ft·lbf}
3 2
6. Completely tighten No.3 shown in the figure.

Tightening torque 38—51 N·m {3.9—5.2 kgf·m, 29—37 ft·lbf}

38— 51 N·m {3.9— 5.2 kgf·m, 29— 37 ft·lbf}
acxuuw00002588

Seal Ring Installation Note

Caution
• If installation is performed without using the SST, the seal ring will be damaged and deformed,
resulting in an incorrect installation. Always use the SST to install the seal ring.

1. Temporarily install the seal ring to the pipe so that

the seal ring is even with the flange. SEAL RING

FLANGE

acxuuw00002570

01-15–4 Revised 3/2007 (Ref. No. R051/07)

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EXHAUST SYSTEM [L3 WITH TC]
2. Install the SST to the seal ring so that the SST is
even with the flange.
49 G040 002

01-15
49 G040 001 FLANGE

acxuuw00002571
3. Press in the seal ring by tapping the SST using a
plastic hammer until the seal ring contacts the 49 G040 001
flange.
End Of Sie

49 G040 002 FLANGE

PLASTIC HAMMER

acxuuw00002572

Revised 11/2006 (Ref. No. R172/06) 01-15–5

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EMISSION SYSTEM [L3 WITH TC]
01-16 EMISSION SYSTEM [L3 WITH TC]
EVAPORATIVE EMISSION (EVAP) Airflow Inspection . . . . . . . . . . . . . . . . . 01-16–8
CONTROL SYSTEM LOCATION INDEX Resistance Inspection . . . . . . . . . . . . . . 01-16–8–1
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-16–2 Circuit Open/Short Inspection . . . . . . . . 01-16–8–2
Engine Compartment Side. . . . . . . . . . 01-16–2 PURGE SOLENOID VALVE
Exhaust system side . . . . . . . . . . . . . . 01-16–2 REMOVAL/INSTALLATION
Fuel Tank Side . . . . . . . . . . . . . . . . . . . 01-16–3 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-16–9 01-16
EVAPORATIVE EMISSION (EVAP) PURGE SOLENOID VALVE INSPECTION
CONTROL SYSTEM DIAGRAM [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-16–9
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-16–4 Airflow Inspection . . . . . . . . . . . . . . . . . 01-16–9
FUEL-FILLER CAP INSPECTION Circuit Open/Short Inspection . . . . . . . . 01-16–10
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-16–4 CHECK VALVE INSPECTION
Leakage Inspection . . . . . . . . . . . . . . . 01-16–4 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-16–11
AIR FILTER INSPECTION EGR VALVE REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-16–5 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-16–11
CHARCOAL CANISTER EGR VALVE INSPECTION
REMOVAL/INSTALLATION [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-16–12
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-16–6 Resistance Inspection . . . . . . . . . . . . . . 01-16–12
CHARCOAL CANISTER INSPECTION Circuit Open/Short Inspection . . . . . . . . 01-16–13
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-16–6 POSITIVE CRANKCASE VENTILATION
EVAPORATIVE EMISSION (EVAP) (PCV) VALVE INSPECTION
SYSTEM LEAK DETECTION PUMP [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-16–14
REMOVAL/INSTALLATION WARM-UP THREE-WAY CATALYTIC
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-16–7 CONVERTER (WU-TWC) INSPECTION
2WD . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-16–7 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-16–14
AWD. . . . . . . . . . . . . . . . . . . . . . . . . . . 01-16–7
EVAPORATIVE EMISSION (EVAP)
SYSTEM LEAK DETECTION PUMP
INSPECTION[L3 WITH TC]. . . . . . . . . . 01-16–8

End of Toc
WM: EVAP CONTROL SYSTEM

Revised 10/2006 (Ref. No. R144/06) 01-16–1

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EMISSION SYSTEM [L3 WITH TC]
EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM LOCATION INDEX[L3 WITH TC]
id011639800100
Engine Compartment Side
4

acxuuw00000176
.

1 Purge solenoid valve 3 PCV valve

(See 01-16-9 PURGE SOLENOID VALVE (See 01-16-14 POSITIVE CRANKCASE
REMOVAL/INSTALLATION[L3 WITH TC].) VENTILATION (PCV) VALVE INSPECTION[L3
(See 01-16-9 PURGE SOLENOID VALVE WITH TC].)
INSPECTION[L3 WITH TC]) 4 Check valve
2 EGR valve (See 01-16-11 CHECK VALVE INSPECTION[L3
(See 01-16-11 EGR VALVE REMOVAL/ WITH TC].)
INSTALLATION[L3 WITH TC].)
(See 01-16-12 EGR VALVE INSPECTION[L3 WITH
TC].)

Exhaust system side

1
acxuuw00000177
.

1 WU-TWC 2 TWC

01-16–2
1871-1U-06B(01-16).fm 3 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

Fuel Tank Side

01-16

1
2

TO PURGE SOLENOID VALVE

acxuuw00000178
.

1 Fuel shut-off valve 4 EVAP system leak detection pump

2 Rollover valve (See 01-16-7 EVAPORATIVE EMISSION (EVAP)
SYSTEM LEAK DETECTION PUMP REMOVAL/
3 Charcoal canister INSTALLATION[L3 WITH TC].)
(See 01-16-6 CHARCOAL CANISTER REMOVAL/ (See 01-16-7 EVAPORATIVE EMISSION (EVAP)
INSTALLATION[L3 WITH TC].) SYSTEM LEAK DETECTION PUMP
(See 01-16-6 CHARCOAL CANISTER INSPECTION[L3 WITH TC].)
INSPECTION[L3 WITH TC].)
5 Air filter
(See 01-16-5 AIR FILTER INSPECTION[L3 WITH
TC].)
6 Fuel filler cap
(See 01-16-4 FUEL-FILLER CAP INSPECTION[L3
WITH TC].)

End Of Sie

01-16–3
1871-1U-06B(01-16).fm 4 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM DIAGRAM[L3 WITH TC]
id011639800200

EVAP SYSTEM LEAK

DETECTION PUMP PURGE SOLENOID VALVE

CHECK VALVE
CHARCOAL CANISTER

AIR FILTER

EGR VALVE
FUEL SHUT-OFF ROLLOVER VALVE
VALVE

PCV VALVE

acxuuw00000062

End Of Sie
FUEL-FILLER CAP INSPECTION[L3 WITH TC]
WM: FUEL FILLER CAP

id011639801300
Leakage Inspection
1. Perform the following SST (Evaporative Emission System Tester 134-01049) self-test:

Note
• If the tester does not work correctly during self-test, refer to the tester operators manual for more detailed
procedures.

(1) Verify that the gas cylinder valve is closed and the control valve located on the tester is in the TEST
position. All tester displays should be off at this time.
(2) Connect the long hose (part of SST) to the
tester.
(3) Connect the manifold assembly (part of SST)
to the long hose as shown.
(4) Open the gas cylinder valve and verify the gas
cylinder regulator left gauge reads 69— 82
kPa {0.71— 0.83 kgf/cm2, 10— 12 psi}
(preset at factory).
• If not, refer to the tester operators manual
to contact tester manufacturer.
(5) Press the ON/OFF switch to turn on the SST
and make sure the left display reads 0.0. acxuuw00002343
(6) Turn the control valve on the tester to the FILL
position.
(7) Verify the left display reading is within 13.9 to 14.0 in of water.
• If not, adjust the pressure using the regulator knob located on the right side of the tester.
(8) Turn the control valve to TEST position and press the START switch.
(9) After the 2-min countdown (left display) is completed, the right display shows the total pressure loss for that
period. A 0.5 in of water loss is acceptable on the self-test.
• If the loss is more than 0.5 in of water, do one or more self-test. If the failed test repeats, check for leak
using the ultrasonic leak detector (part of SST).
2. Press the RESET switch to set the left display reading to 0.0.

01-16–4
1871-1U-06B(01-16).fm 5 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

3. Connect the fuel cap receiver assembly (part of
SST) to the manifold assembly and fuel-filler cap
from the vehicle.
• If the fuel-filler cap is not a genuine part,
replace it.
4. Turn the control valve to the FILL position.
5. Wait (maximum 20 s) until the left display reads
13.9 to 14.0 in of water. 01-16
• If the reading is slightly below the
specification, adjust it using the regulator
knob.
• If the reading is far below, the fuel-filler cap
acxuuw00002344
has leak. Replace it.
6. Turn the control valve to the TEST position and
press the START switch.
7. After the 2-min countdown (left display) is completed, check the test result (the failed/passed light on the
tester).
• If the green light turns on, the fuel-filler cap is normal.
• If the red light turns on, the fuel-filler cap has leakage. Replace it.
8. Close the gas cylinder valve.
9. Turn the control valve to the FILL position.
10. Press the ON/OFF switch to turn off the tester.
End Of Sie
AIR FILTER INSPECTION[L3 WITH TC]
WM: AIR FILTER (EMISSION SYSTEM)

id011639800600
1. Remove the air filter.
2. Blow from port A and verify that there is airflow from port B.
• If not as specified, replace the air filter.
3. Blow from port B and verify that there is airflow EVAP SYSTEM LEAK
from port A. ATMOSPHERE
DETECTION PUMP
SIDE
• If not as specified, replace the air filter. SIDE
End Of Sie
WM: CHARCOAL CANISTER

A B

B6U0116W004

01-16–5
1871-1U-06B(01-16).fm 6 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

CHARCOAL CANISTER REMOVAL/INSTALLATION[L3 WITH TC]
id011639801500
1. Remove the under cover (LR).
2. Remove in the order indicated in the table. .

1 Evaporative hose
2 Quick release connector 9.0—13.0 2
{92—132, 80—115}
(See 01-14-19 QUICK RELEASE CONNECTOR
REMOVAL/INSTALLATION[L3 WITH TC]) 1
3 Charcoal canister 9.0—13.0
4 Charcoal canister bracket {92—132, 80—115}

3. Install in the reverse order of removal. 3

End Of Sie

9.0—13.0
{92—132, 80—115} N·m {kgf·cm,in·lbf}

acxuuw00000216

CHARCOAL CANISTER INSPECTION[L3 WITH TC]

id011639800500
1. Remove the charcoal canister. (See01-16-6 CHARCOAL CANISTER REMOVAL/INSTALLATION[L3 WITH
TC].)
2. Plug ports A and C, then blow air into port B.

Caution
• Do not apply the pressure more than 20
kPa {0.2 kgf/cm2, 2.9 psi} to the charcoal
canister. Doing so will damage the
charcoal canister.
A
3. Verify that there is no air leakage from the case. B
• If not as specified, replace the charcoal C
canister. (See01-16-6 CHARCOAL
CANISTER REMOVAL/INSTALLATION[L3 acxuuw00000179
WITH TC].)
End Of Sie
WM: EVAP SYSTEM LEAK DETECTION PUMP

01-16–6
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EMISSION SYSTEM [L3 WITH TC]
EVAPORATIVE EMISSION (EVAP) SYSTEM LEAK DETECTION PUMP REMOVAL/INSTALLATION[L3 WITH
TC]
id011639800700
2WD
1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table..

1 Connector
2 Evaporative hose 3 01-16
9.0—13.0
3 EVAP system leak detection pump {92—132, 80—115}

3. Install in the reverse order of removal.

1

9.0—13.0
{92—132, 80—115} 2
N·m {kgf·cm, in·lbf}

acxuuw00000258

AWD
1. Disconnect the negative battery cable.

Note
• Because the AWD EVAP system leak detection pump is installed surrounded by the rear differential, there
is insufficient space for removing the pump from the vehicle. Therefore, it is necessary to remove the
EVAP system leak detection pump and bracket separately from the vehicle.

2. Remove in the order indicated in the table..

1 Connector
2 Evaporative hose
3 9.0—13.0
3 EVAP system leak detection pump and bracket
{92—132,
(See 01-16-8 EVAP system leak detection pump 1 80—115}
and bracket removal note)
4 EVAP system leak detection pump
(See 01-16-8 EVAP system leak detection pump
4
and bracket removal note)

3. Install in the reverse order of removal. 9.0—13.0

{92—132,
80—115}

2
N·m {kgf·cm, in·lbf}

acxuuw00002564

Revised 10/2006 (Ref. No. R144/06) 01-16–7

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EMISSION SYSTEM [L3 WITH TC]
EVAP system leak detection pump and bracket removal note

Note
• Because the AWD EVAP system leak detection pump is installed surrounded by the rear differential, there
is insufficient space for removing the pump from the vehicle. Therefore, it is necessary to remove the
EVAP system leak detection pump and bracket separately from the vehicle.

1. Reverse the EVAP system leak detection pump

and bracket.

acxuuw00002565

2. Remove the installation screws from the EVAP

system leak detection pump. EVAP SYSTEM LEAK
3. Remove the EVAP system leak detection pump. DETECTION PUMP

4. Remove the EVAP system leak detection pump

bracket.
End Of Sie
BRACKET

EVAP SYSTEM LEAK

DETECTION PUMP
INSTATION SCREW

acxuuw00002567

EVAPORATIVE EMISSION (EVAP) SYSTEM LEAK DETECTION PUMP INSPECTION[L3 WITH TC]
id011639800800
Airflow Inspection
Note
• Perform the following test only when directed.

1. Disconnect the negative battery cable.

2. Remove the EVAP system leak detection pump. (See01-16-7 EVAPORATIVE EMISSION (EVAP) SYSTEM
LEAK DETECTION PUMP REMOVAL/INSTALLATION[L3 WITH TC].)
3. Blow air into port A and verify that there is airflow
from port B. EVAP SYSTEM LEAK CHARCOAL
DETECTION PUMP
• If not as specified, replace the EVAP system CANISTER SIDE
leak detection pump.
4. Blow air into port B and verify that there is airflow A
from port A.
• If not as specified, replace the EVAP system
leak detection pump. AIR FILTER
B
SIDE
• If as specified, perform the following
“Resistance Inspection”.
End Of Sie
acxuuw00000041

01-16–8 Revised 10/2006 (Ref. No. R144/06)

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EMISSION SYSTEM [L3 WITH TC]
01-16-8 EMISSION SYSTEM [L3 WITH TC]

Resistance Inspection

Note
• Perform the following procedure only when directed.

1. Disconnect the negative battery cable.

2. Inspect resistance of the EVAP system leak
detection pump. 01-16
EVAP SYSTEM
• If not as specified, replace the EVAP system LEAK DETECTION PUMP
leak detection pump. 1V
• If as specified, carry out the “Circuit Open/
Short Inspection”. A MAIN RELAY PCM

Terminals Resistance (ohm)

C
A— B 20— 50
M D
A— C 26.6— 32.4 B
1AS
A— D MAX. 118

acxuuw00000042

01–16–8–1
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
EMISSION SYSTEM [L3 WITH TC]
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an
open or short circuit (continuity check).

EVAP SYSTEM
LEAD DETECTION PUMP
WIRING HARNESS SIDE CONNECTOR

A
C
B
D

acxuuw00000043

FUSE BOX
(MAIN RELAY)

B
FRONT
A E
D

acxuuw00002334

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000044

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— EVAP system leak detection pump terminal A and main relay terminal E
— EVAP system leak detection pump terminal B and the body ground
— EVAP system leak detection pump terminal C and PCM terminal 1V
— EVAP system leak detection pump terminal D and PCM terminal 1AS
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— EVAP system leak detection pump terminal A and body ground
— EVAP system leak detection pump terminal B and power supply
— EVAP system leak detection pump terminal C and power supply
— EVAP system leak detection pump terminal C and body ground
— EVAP system leak detection pump terminal D and power supply
— EVAP system leak detection pump terminal D and body ground
End Of Sie

01–16–8–2
1871-1U-06B(01-16).fm 9 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

PURGE SOLENOID VALVE REMOVAL/INSTALLATION[L3 WITH TC]
id011639803500
1. Disconnect the negative battery cable.
2. Remove the charge air cooler duct.
3. Remove in the order indicated in the table. .

1 Connector
3
2 Vacuum hose 1
3 Purge solenoid valve 01-16
2
4. Install in the reverse order of removal.
End Of Sie

2
acxuuw00000217

PURGE SOLENOID VALVE INSPECTION[L3 WITH TC]

id011639800900
Airflow Inspection

Note
• Perform the following test only when directed.

1. Disconnect the negative battery cable.

2. Remove the purge solenoid valve. (See 01-16-9 PURGE SOLENOID VALVE REMOVAL/INSTALLATION[L3
WITH TC].)
3. Inspect airflow between the ports under the following conditions.
• If not as specified, replace the purge solenoid valve. (See 01-16-9 PURGE SOLENOID VALVE REMOVAL/
INSTALLATION[L3 WITH TC].)
• If as specified, carry out the “Circuit Open/
Short Inspection”.
: Continuity : Airflow
Terminal Port B A
Step
A B A B
B
1 A
2 B+ GND
acxuuw00000045

acxuuw00000046

01-16–9
1871-1U-06B(01-16).fm 10 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See 01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an
open or short circuit (continuity check). PURGE SOLENOID VALVE
WIRING HARNESS SIDE CONNECTOR

B A

acxuuw00000047

FUSE BOX
(MAIN RELAY)

B
FRONT
A E
D

acxuuw00002335

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000048

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Purge solenoid valve terminal A and main relay terminal E
— Purge solenoid valve terminal B and PCM terminal 2AB
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Purge solenoid valve terminal A and body ground
— Purge solenoid valve terminal B and power supply
— Purge solenoid valve terminal B and body ground
End Of Sie
WM: CHECK VALVE (EMISSION SYSTEM)

01-16–10
1871-1U-06B(01-16).fm 11 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

CHECK VALVE INSPECTION[L3 WITH TC]
id011639801400
1. Remove the charge air cooler duct.
2. Disconnect the vacuum hose connected between the check valve and the purge solenoid valve from the purge
solenoid valve.
3. Disconnect the vacuum hose connected between the check valve and the intake manifold from the intake
manifold.
4. Blow through the check valve and verify that air flows as specified.
• If not as specified, replace the check valve. 01-16
Specification
Condition Airflow PORT A
Air applied from port A to B Yes
Air applied from port B to A No*

* : The check valve is normal if the aeration to port B

is 3.5 kPa/min {0.03 kgf/cm2 min, 0.5 psi/min}
or less when 130 kPa {1.32 kgf/cm2, 18.9 psi}
is applied to port A.
PORT B
End Of Sie
WM: EGR VALVE
acxuuw00000214

EGR VALVE REMOVAL/INSTALLATION[L3 WITH TC]

id011639801000
1. Disconnect the negative battery cable.
2. Remove the charge air cooler duct.
3. Disconnect the EGR valve connector.
4. Remove the air hose and air duct. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC])
5. Drain the engine coolant. (See01-12-5 ENGINE COOLANT REPLACEMENT[L3 WITH TC].)
6. Remove in the order indicated in the table.
7. Install in the reverse order of removal.
1 Water hose
2 EGR valve

End Of Sie 20—30 N·m

2 {2.1—3.0 kgf·m,
15—22 ft·lbf}

R
1
acxuuw00000511

01-16–11
1871-1U-06B(01-16).fm 12 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

EGR VALVE INSPECTION[L3 WITH TC]
id011639801100
Resistance Inspection

Note
• Perform the following test only when directed.

1. Disconnect the negative battery cable.

2. Inspect resistance of the EGR valve coils.
• If not as specified, replace the EGR valve.
(See 01-16-11 EGR VALVE REMOVAL/
INSTALLATION[L3 WITH TC])
• If as specified, carry out the “Circuit Open/ 2AQ
Short Inspection”.
2AM
Terminals Resistance (ohm) PCM EGR VALVE
C— E
C— A E
8— 9 C
D— B A MAIN
D— F RELAY
B
D
F
2AR
2AN

acxuuw00000049

C
A
E

F D B

acxuuw00000050

01-16–12
1871-1U-06B(01-16).fm 13 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See 01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for open or
EGR VALVE
short circuit (continuity check).
WIRING HARNESS SIDE CONNECTOR

E C A
01-16
F D B

acxuuw00000051

FUSE BOX
(MAIN RELAY)

B
FRONT
A E
D

acxuuw00002336

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000052

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— EGR valve terminal A and PCM terminal 2AM
— EGR valve terminal B and PCM terminal 2AR
— EGR valve terminal C or D and main relay terminal E
— EGR valve terminal E and PCM terminal 2AQ
— EGR valve terminal F and PCM terminal 2AN
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— EGR valve terminal A and power supply
— EGR valve terminal A and body ground
— EGR valve terminal B and power supply
— EGR valve terminal B and body ground
— EGR valve terminal C or D and body ground
— EGR valve terminal E and power supply
— EGR valve terminal E and body ground
— EGR valve terminal F and power supply
— EGR valve terminal F and body ground
3. Remove the EGR valve, and inspect for any damage or clogging.
• If there is no damage or clogging, replace the EGR valve. (See 01-16-11 EGR VALVE REMOVAL/
INSTALLATION[L3 WITH TC])
End Of Sie
WM: PCV VALVE

01-16–13
1871-1U-06B(01-16).fm 14 ページ ２００６年３月１５日 水曜日 午前１０時４８分

EMISSION SYSTEM [L3 WITH TC]

POSITIVE CRANKCASE VENTILATION (PCV) VALVE INSPECTION[L3 WITH TC]
id011639800400
1. Remove the intake manifold. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC])
2. Remove the PCV valve.
3. Blow through the valve and verify that air flows as
specified. B
• If not as specified, replace the PCV valve.
Specification
Condition Airflow
Air applied from port A to B Yes
Air applied from port B to A No

End Of Sie
WM: CATALYTIC CONVERTER

A
acxuuw00001930

WARM-UP THREE-WAY CATALYTIC CONVERTER (WU-TWC) INSPECTION[L3 WITH TC]

id011639801200

Caution
• Perform the following procedures, DTC P0421 is indicated only.

1. Connect the M-MDS to the DLC-2.

2. Start the engine and warm it up to normal
operating temperature.
3. Turn off the engine.
4. Verify that the engine compression is within the
specification. (See 01-10-9 COMPRESSION
INSPECTION[L3 WITH TC].)
• If the compression pressure is not within the
specification, repair or replace the
malfunction part.
5. Drive the vehicle for 10 min at 65— 96 km/h
DLC-2
{40— 60 mph} to allow the WU-TWC to reach
acxuuw00000264
operating
6. Stop the vehicle and leave it in a safe space.
7. Access Test ID 10:21:80 on the “Diagnostic Monitoring Test Result” function.
8. Verify that the test result is within the specified indicated on the M-MDS.
• If it is not as specified, replace the WU-TWC. (See01-15-2 EXHAUST SYSTEM REMOVAL/
INSTALLATION[L3 WITH TC].)
End Of Sie

01-16–14
1871-1U-06B(01-17).fm 1 ページ ２００６年３月１５日 水曜日 午前１０時４９分

CHARGING SYSTEM [L3 WITH TC]

01-17 CHARGING SYSTEM [L3 WITH TC]
CHARGING SYSTEM LOCATION INDEX GENERATOR REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-17–1 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-17–4
BATTERY REMOVAL/INSTALLATION Generator Removal Note . . . . . . . . . . . 01-17–5
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-17–2 Generator Installation Note . . . . . . . . . . 01-17–5
Battery Box Installation Note . . . . . . . . 01-17–2 GENERATOR INSPECTION
BATTERY INSPECTION [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-17–6 01-17
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-17–2 Generator Warning Light . . . . . . . . . . . . 01-17–6
Electrolyte Specific Gravity . . . . . . . . . 01-17–2 Generator . . . . . . . . . . . . . . . . . . . . . . . 01-17–6
Battery Voltage. . . . . . . . . . . . . . . . . . . 01-17–3 Generator Inner Parts . . . . . . . . . . . . . . 01-17–8
Back-up Current . . . . . . . . . . . . . . . . . . 01-17–3 GENERATOR
BATTERY RECHARGING DISASSEMBLY/ASSEMBLY
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-17–4 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-17–11

End of Toc
CHARGING SYSTEM LOCATION INDEX[L3 WITH TC]
WM: CHARGING SYSTEM

id011739800100

2
1

acxuuw00002015

1 Battery 2 Generator
(See 01-17-2 BATTERY REMOVAL/ (See 01-17-4 GENERATOR REMOVAL/
INSTALLATION[L3 WITH TC].) INSTALLATION[L3 WITH TC].)
(See 01-17-2 BATTERY INSPECTION[L3 WITH (See 01-17-6 GENERATOR INSPECTION[L3 WITH
TC].) TC].)
(See 01-17-4 BATTERY RECHARGING[L3 WITH (See 01-17-11 GENERATOR DISASSEMBLY/
TC].) ASSEMBLY[L3 WITH TC].)

End Of Sie
WM: BATTERY

01-17–1
1871-1U-06B(01-17).fm 2 ページ ２００６年３月１５日 水曜日 午前１０時４９分

CHARGING SYSTEM [L3 WITH TC]

BATTERY REMOVAL/INSTALLATION[L3 WITH TC]
id011739800500
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
5.0—6.9 {51.0—70.3,
4 5
1 Negative battery cable 44.3—61.0}
2
2 Positive battery cable cap
1
3 Positive battery cable 2.9—4.9
4 Battery clamp {29.6—49.9,
25.7—43.3} 6
5 Battery box
(See 01-17-2 Battery Box Installation Note.)
6 Battery 8.8—12.7 3
{89.8—129.5, 2.9—4.9
7 Battery tray 78.0—112.4} {29.6—49.9,
25.7—43.3}

7
8.8—12.7
{89.8—129.5,
78.0—112.4}

N·m {kgf·cm, in·lbf}

acxuuw00002031

Battery Box Installation Note

1. Install the battery box so that the side with the
notch points toward the front fender (LH). LH FRONT FENDER
End Of Sie

NOTCH

FRONT

acxuuw00002032

BATTERY INSPECTION[L3 WITH TC]

id011739800600

Warning
• Since battery acid is toxic, be careful when handling the battery.
• Since battery acid is highly corrosive, be careful not to allow it to contact clothing or the vehicle.
• In case battery acid contacts skin, eyes, or clothing, flush it immediately with running water.
Especially if the acid gets in the eyes, flush with water for more than 15 min and get prompt
medical attention.

Electrolyte Specific Gravity

1. Measure the electrolyte specific gravity using a hydrometer.
• If it is less than the specification, recharge the battery. (See 01-17-4 BATTERY RECHARGING[L3 WITH
TC].)

Battery electrolyte specific gravity [20 °C {68 °F}]

1.22— 1.29

01-17–2
1871-1U-06B(01-17).fm 3 ページ ２００６年３月１５日 水曜日 午前１０時４９分

CHARGING SYSTEM [L3 WITH TC]

Battery Voltage
1. Inspect the battery as follows:
Step Inspection Action
1 Measure the battery 12.4 V or Go to Step
positive voltage. more 3.
Less Go to the
than next step.
12.4 V 01-17
2 Quick charge for 30 12.4 V or Go to the
min and recheck more next step.
voltage. Less Replace the
than battery.
12.4 V
3 Using the battery load Yes Normal
tester, apply load No Replace the
current (see battery battery.
load test current) and
record battery voltage
after 15 s. Is voltage
more than the
specification?

Battery load test current

55D23L (48): 180 A
80D26L (55): 195 A

Standard specification
Battery temp. (°C {°F}) Minimum voltage (V)
4 {39} 9.3
10 {50} 9.4
16 {61} 9.5
21 {70} 9.6

Back-up Current
1. Verify that the ignition switch is off (key has been removed) and that all doors are closed.
2. Disconnect the negative battery cable.
3. Connect the tester between the negative battery terminal and negative battery cable, leave the battery
undisturbed for 30 min, and then measure the back-up current.
• If not within the specification, measure the back-up current while removing the fuses one by one from the
inside of the main fuse block and the inside of the fuse block.

Note
• If the battery is not left undisturbed for 30 min, the tester will indicate a high value (approx. 300 mA).
• If the key or any electrical accessory is operated within approx. 30 min after the tester is connected, the
battery must be left undisturbed for approx. 30 min from that point.

Caution
• Operating electrical loads while the back-up current is being measured can damage the tester.

Note
• For vehicles with the immobilizer system, the system periodically shifts synchronization of the security
light flashing. Therefore, 65 mA (0.1 s) current is supplied when the security light is illuminated, and 55
mA (2 s) current is supplied when the security light is not illuminated. In addition, the measuring
instrument, which shows the average value, indicates around 60 mA.

Battery back-up current

Vehicles with immobilizer system: 55— 65 mA
Vehicles without immobilizer system: 60 mA or less

4. Inspect and repair wiring harnesses and connectors of the fuse where the current has decreased.
End Of Sie

01-17–3
1871-1U-06B(01-17).fm 4 ページ ２００６年３月１５日 水曜日 午前１０時４９分

CHARGING SYSTEM [L3 WITH TC]

BATTERY RECHARGING[L3 WITH TC]
id011739800700

Warning
• Keep all flames away from the battery, otherwise evaporated gas from the battery fluid may catch
fire, and cause serious injury.
• Remove the battery filler caps when recharging to prevent battery deformation or damage.

Caution
• Do not quick charge for more than 30 min. It will damage the battery.

1. Remove the battery and then place it in a pan of

water.
2. Connect a battery charger to the battery and
adjust the charging current as follows.
BATTERY BATTERY
CHARGER
Battery slow charge current
55D23L (48): 4.5— 5.5 A
80D26L (55): 5.5— 6.5 A

Battery quick charge current [30 min]

55D23L (48): 30 A
80D26L (55): 35 A
acxuuw00002033

3. After the battery is recharged, verify that the

voltage is within the specification and remains at the same value for 1 h or more after the recharging has been
completed.
• If not within the specification, replace the battery.

Standard voltage
12.4 V or more

End Of Sie
GENERATOR REMOVAL/INSTALLATION[L3 WITH TC]
WM: GENERATOR

id011739800200

Warning
• Remove and install all parts when the engine is cold, otherwise they can cause severe burns or
serious injury.
• When the battery cables are connected, touching the vehicle body with generator terminal B will
generate sparks. This can cause personal injury, fire, and damage to the electrical components.
Always disconnect the negative battery cable before performing the following operation.

Caution
• The generator can be damaged by the heat from the exhaust manifold. Make sure the generator
duct is installed securely.

1. Disconnect the negative battery cable.

2. Remove the charge air cooler duct and charge air cooler cover. (See 01-13-5 INTAKE AIR SYSTEM
REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the front splash shield (RH).
4. Remove the drive belt. (See 01-10-3 DRIVE BELT REMOVAL/INSTALLATION[L3 WITH TC].)
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.

01-17–4
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CHARGING SYSTEM [L3 WITH TC]

9.8—14.7 N·m
{100—149 kgf·cm,
87—130 in·lbf}

3
01-17

7.8—10.8 N·m 4
{79.6—110.1 kgf·cm,
69.1—95.5 in·lbf}
2

38—51
{3.9—5.2,
29—37}

A
7.8—10.8 N·m
{79.6—110.1 kgf·cm,
69.1—95.5 in·lbf} B
5
C

38—51 {3.9—5.2, 29—37}

1
N·m {kgf·m, ft·lbf}

acxuuw00002016

1 Generator duct 4 Generator connector

2 Wiring harness bracket 5 Generator
3 Terminal B cable (See 01-17-5 Generator Removal Note.)
(See 01-17-5 Generator Installation Note.)

Generator Removal Note

1. Remove the cooler hose bracket nut and set the
6.9—9.8
cooler hose out of the way before performing the {71—99,
COOLER HOSE
generator removal/installation. 62—85}
2. Remove the generator from above the engine
compartment.

N·m {kgf·cm, in·lbf}

acxuuw00002017

Generator Installation Note

1. Tighten bolt A temporarily.
2. Tighten bolt B, C to the specified tightening torque.
3. Tighten bolt A to the specified tightening torque.
End Of Sie

01-17–5
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CHARGING SYSTEM [L3 WITH TC]

GENERATOR INSPECTION[L3 WITH TC]
id011739800300

Caution
• Do not apply direct battery positive voltage to generator terminal D, otherwise it could cause
damage to the internal parts (power transistor) of the generator.

Generator Warning Light

1. Verify that the battery is fully charged.
2. Verify that the drive belt deflection/tension is correct. (See 01-10-3 DRIVE BELT INSPECTION[L3 WITH TC].)
3. With the ignition switch turned to the ON position, verify that the generator warning light illuminates.
• If it does not illuminate, inspect the generator warning light and the wiring harness.
— If the generator warning light and the wiring harness are normal, inspect the PCM.
4. Verify that the generator warning light goes out after the engine is started.
• If it does not go out, inspect if any one of the following DTCs in the on-board diagnostic system are
displayed: P0112, P0113, P2502, P2503, P2504. (See 01-02-13 DTC TABLE[L3 WITH TC].)

Generator
Voltage
1. Verify that the battery is fully charged.
2. Verify that the drive belt deflection/tension is correct. (See 01-10-3 DRIVE BELT INSPECTION[L3 WITH TC].)
3. Turn off all electrical loads.
4. Start the engine.
5. Verify that the generator rotates smoothly without any noise while the engine is running.
• If there is any noise, find the cause and repair or replace the generator.
6. Measure the voltage at each terminal using a
tester.
• If it is not as specified, find the cause and
repair or replace the applicable part.
D P
Generator standard voltage [IG-ON]
Terminal B: B+
Terminal P: Approx. 1 V or less
Terminal D: Approx. 0 V

Generator standard voltage [Idle, 20 °C {68

°F}]
acxuuw00002018
Terminal B: 13— 15 V
Terminal P: Approx. 3— 8 V
Terminal D: Turn the electrical loads (headlights, blower motor, rear window defroster) on and verify
that the voltage reading increases.

Current

Note
• Since the charging current decreases rapidly after starting the engine, carry out the following procedure
quickly, and read the maximum current value.

1. Verify that the battery is fully charged.

2. Verify that the drive belt deflection/tension is correct. (See 01-10-3 DRIVE BELT INSPECTION[L3 WITH TC].)
3. Disconnect the negative battery cable.
4. Connect a tester, which can read 120 A or more, between generator terminal B and the wiring harness.
5. Connect the negative battery cable.
6. Turn off all electrical loads.
7. Start the engine.
8. Increase engine speed to 2,500 rpm.

Note
• When the electrical load on the vehicle is low, the specified current cannot be verified although the
generator is normal. In this case, increase the electrical load (Leave the headlights turned on for a while,
then discharge the battery, or use a similar method.) and recheck.
• When the generator itself or the ambient temperature are too high, the specified current also cannot be
verified. In this case, cool down the generator and recheck.

01-17–6
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CHARGING SYSTEM [L3 WITH TC]

9. Turn the following electrical loads on and verify that the current reading increases more than the minimum
value indicated below.
— If it is not as specified, go to the PCM and generator shearing inspection. (See 01-17-7 PCM and generator
shearing inspection.)
• Headlights (high-beam)
• Blower motor (HI)
• Rear window defroster
• Brake lights 01-17
Generator generated current minimum value
70 % of the nominal output current (nominal output current: 110 A)
[Ambient temp. 20 °C {68 °F}, voltage 13.0— 15.0 V, both engine and generator are hot]

PCM and generator shearing inspection

1. Connect the M-MDS to the DLC-2.

DLC-2
acxuuw00002019

2. Inspect as follows:
Step Inspection Action
1 Measure the generator terminal B voltage when the 15 V or more Go to Step 2.
electrical loads*1 are on and off. 13— 15 V Normal*2
13 V or less Go to Step 3.
2 Monitor the ALTT V PID using the M-MDS, or measure the Yes Go to Step 4.
voltage of PCM terminal 2AJ using a tester. Is the voltage No PCM input error.
between 13 and 15 V ?
3 Monitor the ALTT V PID using the M-MDS, or measure the Yes Go to Step 5.
voltage of PCM terminal 2AJ using a tester. Is the voltage No PCM input error.
between 13 and 15 V ?
4 Monitor the ALTF PID using the M-MDS, or calculate the Yes PCM input error.
duty value of the PCM terminal 2AI using an oscilloscope. No PCM, generator, or
Is the duty value 100 % ? both are not
normal.
A

0V

A
x 100 (%) = DUTY (%)
B

01-17–7
1871-1U-06B(01-17).fm 8 ページ ２００６年３月１５日 水曜日 午前１０時４９分

CHARGING SYSTEM [L3 WITH TC]

Step Inspection Action
5 Monitor the ALTF PID using the M-MDS, or calculate the Yes PCM input error.
duty value of the PCM terminal 2AI using an oscilloscope. No PCM, generator, or
Is the duty value 0 % ? both are not
normal.
A

0V

A
x 100 (%) = DUTY (%)
B

*1
: Headlights, blower motor, rear window defroster, and brake lights.
*2 : If the generator field coil duty value does not change when electrical loads (such as headlights, blower motor,
rear window defroster, brake lights) are on or off, inspection with discharged battery is needed.

Generator Inner Parts

Rotor
1. Measure the resistance between the slip rings
using a tester.
• If not within the specification, replace the
rotor.

Generator rotor resistance (between slip

rings) [20 °C {68 °F}]
1.8— 2.2 ohm

acxuuw00002021

2. Verify that there is no continuity between the slip

ring and core using a tester.
• If there is continuity, replace the rotor.
3. Inspect the slip ring surface condition.
• If the slip ring surface is rough, use a lathe or
fine sandpaper to smooth it.

acxuuw00002022

01-17–8
1871-1U-06B(01-17).fm 9 ページ ２００６年３月１５日 水曜日 午前１０時４９分

CHARGING SYSTEM [L3 WITH TC]

Stator coil
1. Verify that the continuity is as indicated in the
table.

1 6

2 5
3 4
01-17

acxuuw00002023

• If there is any malfunction, replace the stator.

: Continuity
Terminal
1 2 3 4 5 6

acxuuw00002024

2. Verify that there is no continuity between the

stator coil leads and core using a tester.
• If there is continuity, replace the stator coil.

acxuuw00002025

Brush
1. Inspect brushes for wear.
• If any brush is worn almost to or beyond the
limit, replace all of the brushes.
MINIMUM
Generator brush length
Standard: 22.5 mm {0.89 in}
Minimum: 5.0 mm {0.20 in}
STANDARD

acxuuw00002026

01-17–9
1871-1U-06B(01-17).fm 10 ページ ２００６年３月１５日 水曜日 午前１０時４９分

CHARGING SYSTEM [L3 WITH TC]

Brush spring
1. Measure the force of the brush spring using a spring pressure gauge.
2. Read the spring pressure gauge at the brush tip
projection of 2 mm {0.079 in}.
• Replace the brush spring if necessary.

Generator brush spring force

Standard: 4.1— 5.3 N {0.42— 0.54 kgf, 0.92— 2 mm
{0.079 in}
1.19 lbf}
Minimum: 1.7 N {0.17 kgf, 0.38 lbf}

acxuuw00002027

Rectifier (Using an analog circuit tester)

1. Inspect for continuity of the diodes using an
analog circuit tester. P4 P5
P6
• If not as specified, replace the rectifier.
Specification P3
Negative Positive Continuity
P2
E P1, P2, P3, P4, Yes
B P5, P6 No P1
P1, P2, P3, P4, E No
P5, P6 B Yes
E B

acxuuw00002028

Rectifier (Using a digital circuit tester)

1. Inspect for continuity of the diodes using a digital circuit tester.
• If not as specified, replace the rectifier.
Specification
Negative Positive Continuity
E P1, P2, P3, P4, No
B P5, P6 Yes
P1, P2, P3, P4, E Yes
P5, P6 B No

Bearing
1. Inspect for abnormal noise, looseness, and
sticking.
• Replace the bearing if necessary.
End Of Sie

acxuuw00002029

01-17–10
1871-1U-06B(01-17).fm 11 ページ ２００６年３月１５日 水曜日 午前１０時４９分

CHARGING SYSTEM [L3 WITH TC]

GENERATOR DISASSEMBLY/ASSEMBLY[L3 WITH TC]
id011739800400

Caution
• Melt the solder quickly, otherwise the diodes (rectifier) and regulator will be damaged by excessive
heat.

1. Disassemble in the order indicated in the table.

2. Assemble in the reverse order of disassembly. 01-17

4
1
2
3.5—5.3 6
{35—55, 31—47}
6.9—10.8
11 {70—110, 61—96}

9
5

2.9—4.9
{30—50,
26—43}

98—137 N·m
3
{10.0—13.9 kgf·m, 7
2.9—4.9
72—101 ft·lbf} 2.9—4.9
{30—50,
26—43} {30—50,
26—43}

10
1.5—2.5 2.9—4.9
{15—25, 13—22} {30—50,
26—43}

8
1.5—2.5
{15—25, 13—22}

N·m {kgf·cm, in·lbf}

acxuuw00002030

1 Rotor component 7 Generator heat insulator

2 Stator coil component 8 Stator coil
3 Pulley 9 Rectifier
4 Rotor 10 Brush holder
5 Bearing 11 Rear bracket
6 Front cover

End Of Sie

01-17–11
1871-1U-06B(01-18).fm 1 ページ ２００６年３月１５日 水曜日 午前１０時５１分

IGNITION SYSTEM [L3 WITH TC]

01-18 IGNITION SYSTEM [L3 WITH TC]
IGNITION SYSTEM LOCATION INDEX SPARK PLUG
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-18–1 REMOVAL/INSTALLATION
IGNITION COIL [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-18–3
REMOVAL/INSTALLATION SPARK PLUG INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-18–2 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-18–3
IGNITION COIL INSPECTION Specification . . . . . . . . . . . . . . . . . . . . . 01-18–3 01-18
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-18–2 Plug Gap Inspection . . . . . . . . . . . . . . . 01-18–3
Ignition Coil Inspection. . . . . . . . . . . . . 01-18–2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . 01-18–3
Ignition Coil with Built-in Igniter Visual Inspection . . . . . . . . . . . . . . . . . . 01-18–4
Inspection . . . . . . . . . . . . . . . . . . . . . 01-18–2 Resistance Inspection . . . . . . . . . . . . . . 01-18–4

End of Toc
IGNITION SYSTEM LOCATION INDEX[L3 WITH TC]
WM: IGNITION SYSTEM

id011839800100

acxuuw00002034

1 Ignition coil 2 Spark plug

(See 01-18-2 IGNITION COIL REMOVAL/ (See 01-18-3 SPARK PLUG REMOVAL/
INSTALLATION[L3 WITH TC].) INSTALLATION[L3 WITH TC].)
(See 01-18-2 IGNITION COIL INSPECTION[L3 (See 01-18-3 SPARK PLUG INSPECTION[L3 WITH
WITH TC].) TC].)

End Of Sie
WM: IGNITION COIL

01-18–1
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IGNITION SYSTEM [L3 WITH TC]

IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC]
id011839800200
1. Disconnect the negative battery cable.
2. Remove the charge air cooler. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.. 6.0—9.5 {62—96, 54—83}
1 Connector
2 Ignition coil 2
End Of Sie

1 N·m {kgf·cm, in·lbf}

acxuuw00002035
IGNITION COIL INSPECTION[L3 WITH TC]
id011839800300
Ignition Coil Inspection
1. Perform the spark test and identify the malfunctioning cylinder.
2. Replace the ignition coil of the malfunctioning cylinder with that of a normal cylinder, and reperform the spark
test.
• If the spark is not normal due to a malfunctioning ignition coil, replace that ignition coil.
• It is unlikely that all four ignition coils fail to operate properly. To prevent replacing a normal component,
perform the above procedure, identify the malfunctioning ignition coil, and replace it.

Ignition Coil with Built-in Igniter Inspection

1. Disconnect the negative battery cable.
2. Remove the charge air cooler. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Disconnect the ignition coil connector.
4. Measure the resistance between each terminal on the ignition coil connector using an analog circuit tester.
• If the measurement corresponds to the table, replace the ignition coil.
Tester Connection Position
Item Condition
Positive Negative
C A
A C
0 ohm is not normal (∞ ohm is normal)
C B
Terminal
B C
A B
∞ or 0 ohm is not normal (several kilohm is normal)
B A

End Of Sie
WM: SPARK PLUG A B C

acxuuw00001990

01-18–2
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
IGNITION SYSTEM [L3 WITH TC]
SPARK PLUG REMOVAL/INSTALLATION[L3 WITH TC]
id011839800400

Caution
• If a spark plug that is not as specified is installed, engine performance will be deteriorated. Install
only the specified spark plug when replacing.

1. Disconnect the negative battery cable.

2. Remove the charge air cooler. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].) 01-18
3. Remove the ignition coils. (See 01-18-2 IGNITION COIL REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the spark plugs using a plug-wrench.
5. Install in the reverse order of removal.

Tightening torque
10— 14 N·m {1.1— 1.4 kgf·m, 8.0— 10 ft·lbf}

End Of Sie
SPARK PLUG INSPECTION[L3 WITH TC]
id011839800500
Specification

Spark plug type

L3K9 18 110A, L3Y3 18 110

Plug Gap Inspection

Caution
• To avoid possible damage to the tip, do not adjust the plug gap.
• To prevent damaging the tip, use a wire type plug gap gauge when inspecting the plug gap.

1. Measure the spark plug gap using a wire type plug gap gauge.
• If not within the specification, replace the spark plug.

Spark plug gap

0.7— 0.8 mm {0.028— 0.031 in}

Cleaning

Caution
• Carbon may adhere to the tip of the spark plug during vehicle delivery or repeated short distance
driving during the winter time. If there is any malfunction such as rough idling or start difficulty
due to carbon adhesion causing plug fouling, burn off the carbon by performing no-load racing of
the engine.
• When performing the no-load racing, apply the side brake and foot brake, move the selector lever
to P position to prevent an accident and serious injury.
• To avoid possible damage to the spark plug tip, do not use a wire brush for cleaning.

Note
• To avoid possible damage to the tip, use gasoline to clean the spark plugs after removing dirt.
• If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to
the idle speed. This is due to the fuel cut control operation, which prevents overheating, and it does not
indicate a malfunction.
• Do not perform no-load racing at high engine speed continuously for 10 s or more.

1. If there is carbon adhering to the spark plug, perform no-load racing at 4,000 rpm for 2 min, 2 times.

Revised 8/2006 (Ref. No. R087/06) 01-18–3

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
IGNITION SYSTEM [L3 WITH TC]
Visual Inspection
1. Inspect the following items:
• If any of the following malfunctions are DAMAGE BREAKAGE
indicated, replace the spark plug. BURNS
— Insulator breakage
— Worn electrode
— Damaged gasket
— Badly burned insulator (sparking side) WEAR AND
CARBON
DEPOSITS

acxuuw00002036

Resistance Inspection
1. Measure the resistance of the spark plug using a
tester as shown in the figure.
• If not within the specification, replace the
spark plug.

Spark plug resistance [25°C {77 °F}]

3.0— 7.5 kilohms

End Of Sie

acxuuw00002037

01-18–4
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
STARTING SYSTEM [L3 WITH TC]
01-19 STARTING SYSTEM [L3 WITH TC]
STARTING SYSTEM LOCATION INDEX On-vehicle Inspection . . . . . . . . . . . . . . 01-19–4
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-19–1 No-load Test . . . . . . . . . . . . . . . . . . . . . 01-19–4
STARTER REMOVAL/INSTALLATION Magnetic Switch
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-19–2 Operation Inspection . . . . . . . . . . . . . . 01-19–4
Heater Pipe Removal Note . . . . . . . . . 01-19–3
Pinion Gap Inspection . . . . . . . . . . . . 01-19-4–1 01-19
Starter Removal Note . . . . . . . . . . . . . 01-19–3
Starter Inner Parts Inspection . . . . . . 01-19-4–1
Starter Installation Note . . . . . . . . . . . . 01-19–3
STARTER DISASSEMBLY/ASSEMBLY
STARTER INSPECTION [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-19–7
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-19–4

End of Toc
STARTING SYSTEM LOCATION INDEX[L3 WITH TC]
WM: STARTING SYSTEM

id011939800100

1
acxuuw00002038

1 Starter
(See 01-19-2 STARTER REMOVAL/
INSTALLATION[L3 WITH TC].)
(See 01-19-4 STARTER INSPECTION[L3 WITH
TC].)
(See 01-19-7 STARTER DISASSEMBLY/
ASSEMBLY[L3 WITH TC].)

End Of Sie
WM: STARTER

Revised 12/2006 (Ref. No. R215/06) 01-19–1

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
STARTING SYSTEM [L3 WITH TC]
STARTER REMOVAL/INSTALLATION[L3 WITH TC]
id011939800200

Warning
• Remove and install all parts when the engine is cold, otherwise they can cause severe burns or
serious injury.
• When the battery cables are connected, touching the vehicle body with starter terminal B will
generate sparks. This can cause personal injury, fire, and damage to the electrical components.
Always disconnect the negative battery cable before performing the following operation.

1. Remove the battery and battery tray. (See 01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
2. Remove the charge air cooler duct, air cleaner and fresh air duct component, and air hose. (See 01-13-5
INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the under cover.
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.

TURBOCHARGER
9.8—11.7 N·m
{100—119 kgf·cm,
86.8—103.5 in·lbf}

3 A
16.3—23.5
{1.7—2.3, 12.1—17.3}
38—51 {3.9—5.2, 29—37}

5
38—51 {3.9—5.2, 29—37}

2
16.3—23.5
{1.7—2.3, 12.1—17.3}
1

7.8—10.8 N·m
{79.6—110.1 kgf·cm, 69.1—95.5 in·lbf}
N·m {kgf·m, ft·lbf}

acxuuw00002039
.

1 Wiring harness and wiring harness bracket 4 Terminal S connector

2 Heater pipe 5 Starter
(See 01-19-3 Heater Pipe Removal Note.) (See 01-19-3 Starter Removal Note.)
3 Terminal B cable (See 01-19-3 Starter Installation Note.)

01-19–2 Revised 12/2006 (Ref. No. R215/06)

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
STARTING SYSTEM [L3 WITH TC]
Heater Pipe Removal Note
1. Remove the heater pipe with the water hoses still connected. Position the heater pipe so that it is out of the way.

Starter Removal Note

1. Remove the starter from above the engine compartment.

Starter Installation Note

01-19
Note
• If there is peeling on or damage to the
PEELING
insulator, attach a new insulator using the
following procedure:

1. Peel off the insulator from the starter completely

using a scraper.

INSULATOR
STARTER
acxaaw00000762

2. Degrease the insulator attachment area.

INSULATOR STARTER
ATTACHMENT AREA

acxaaw00000763

3. Attach a new insulator to the starter.

End Of Sie

INSULATOR STARTER

acxaaw00000764

Revised 12/2006 (Ref. No. R215/06) 01-19–3

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
STARTING SYSTEM [L3 WITH TC]
STARTER INSPECTION[L3 WITH TC]
id011939800300
On-vehicle Inspection
1. Verify that the battery is fully charged.
2. The starter is normal if it rotates smoothly and without any noise when the engine is cranked.
• If the starter does not operate, inspect the following:
— Remove the starter, and inspect the starter unit.
— Inspect the related wiring harnesses, the ignition switch, and the transaxle range switch.

No-load Test
1. Verify that the battery is fully charged.
2. Connect the starter, battery, and a tester as
shown in the figure.
IG SW TESTER
3. Operate the starter and verify that it rotates
A
smoothly.
• If the starter does not rotate smoothly, inspect B

the starter unit. M TESTER

4. Measure the voltage and current while the starter S TERMINAL V BATTERY
is operating. STARTER
• If not within the specification, replace the
starter.

Starter no-load test voltage

acxuuw00002040
11 V

Starter no-load test current

90 A or less

Magnetic Switch Operation Inspection

Pull-out test

Note
• Depending on the battery charge condition, the starter motor pinion may rotate while in an extended state.
This is due to current flowing to the starter motor through the pull-in coil to turn the starter motor, and does
not indicate an abnormality.

1. Verify that the starter motor pinion is extended TERMINAL S

while battery positive voltage is connected to
terminal S and the starter body is grounded.
• If the starter motor pinion is not extended,
repair or replace the starter.

acxuuw00002041

01-19–4
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
STARTING SYSTEM [L3 WITH TC]
Return test
01-19-4 STARTING SYSTEM [L3 WITH TC]

1. Disconnect the motor wire from terminal M.

2. Connect battery positive voltage to terminal M
and ground the starter body. TERMINAL M
3. Pull out the drive pinion with a screwdriver. Verify
that it returns to its original position when
released.
• If it does not return, repair or replace the 01-19
starter.

acxuuw00002042

Pinion Gap Inspection

1. Pull out the drive pinion with the battery positive TERMINAL S
voltage connected to terminal S and the starter
body grounded.

Caution
• Applying power for more than 10 s can
damage the starter. Do not apply power
for more than 10 s.

acxuuw00002041

2. Measure the pinion gap while the drive pinion is

extended.
• If not as specified, adjust with an adjustment
washer (between drive housing front cover
and magnetic switch).

Starter pinion gap

0.5— 2.0 mm {0.02— 0.07 in}

PINION GAP

acxuuw00002043

Starter Inner Parts Inspection

Armature
1. Verify that there is no continuity between the
commutator and the core at each segment using
a tester.
• If there is continuity, replace the armature.
End Of Sie

acxuuw00002044

01-19-4–1
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
STARTING SYSTEM [L3 WITH TC]

THIS PAGE INTENTIONALLY

LEFT BLANK

01-19-4–2
1871-1U-06B(01-19).fm 5 ページ ２００６年３月１５日 水曜日 午前１０時５１分

STARTING SYSTEM [L3 WITH TC]

2. Verify that there is no continuity between the
commutator and the shaft using a tester.
• If there is continuity, replace the armature.

01-19

acxuuw00002045

3. Place the armature on V-blocks, and measure the

runout using a dial indicator.

Starter armature runout

0.05 mm {0.002 in} max.

acxuuw00002046

4. Measure the commutator diameter.

• If not within the minimum specification,
replace the armature.

Starter commutator diameter

Standard: 29.4 mm {1.16 in}
Minimum: 28.8 mm {1.13 in}

acxuuw00002047

5. Measure the segment groove depth of the

commutator.
• If not within the minimum specification,
undercut the grooves to the standard depth.

Segment groove depth of starter commutator

Standard: 0.4— 0.6 mm {0.016— 0.023 in}
Minimum: 0.2 mm {0.008 in}

acxuuw00002048

01-19–5
1871-1U-06B(01-19).fm 6 ページ ２００６年３月１５日 水曜日 午前１０時５１分

STARTING SYSTEM [L3 WITH TC]

Magnetic switch
1. Inspect for continuity between terminals S and M
TERMINAL S
using a tester. TERMINAL M
• If there is no continuity, replace the magnetic
switch.

acxuuw00002049

2. Inspect for continuity between terminal S and the TERMINAL S

body using a tester.
• If there is no continuity, replace the magnetic
switch.

acxuuw00002050

3. Verify that there is no continuity between

TERMINAL M
terminals M and B using a tester.
• If there is continuity, replace the magnetic
switch.
TERMINAL B

acxuuw00002051

Brush and brush holder

1. Verify that there is no continuity between each
insulated brush and plate using a tester.
• If there is continuity, replace the brush holder.

acxuuw00002052

01-19–6
1871-1U-06B(01-19).fm 7 ページ ２００６年３月１５日 水曜日 午前１０時５１分

STARTING SYSTEM [L3 WITH TC]

2. Measure the brush length.
• If any brush is worn almost to or beyond the
minimum specification, replace all of the
brushes. MINIMUM
BRUSH
Starter brush length LENGTH
Standard: 12.3 mm {0.48 in}
Minimum: 7.0 mm {0.28 in} 01-19
CONTACT FACE WITH COMMUTATOR

acxuuw00002053
3. Measure the brush spring force using a spring
balance.
• If not within the minimum specification,
replace the brush and brush holder
component.

Starter brush spring force

Standard: 18.3— 24.9 N {1.87— 2.53 kgf,
4.12— 5.59 lbf}
Minimum: 5.9 N {0.6 kgf, 1.3 lbf}

End Of Sie acxuuw00002054

STARTER DISASSEMBLY/ASSEMBLY[L3 WITH TC]
id011939800400
1. Disassemble in the order indicated in the table.
2. Assemble in the reverse order of disassembly.

9.8—11.8
1 {100—120,
87—104}

4.1—7.6
{42—77,
37—66}
6
4.4—7.1
8 {45—72,
40—62}

11
2.4—4.4
{25—44,
22—38}

10 2

3
9
4

5 N·m {kgf·cm, in·lbf}

acxuuw00002055
.

1 Magnetic switch 7 Front cover

2 Rear housing 8 Lever
3 Brush and brush holder 9 Drive pinion
4 Armature 10 Internal gear
5 Yoke 11 Gear shaft
6 Planetary gear

01-19–7
1871-1U-06B(01-20).fm 1 ページ ２００６年３月１５日 水曜日 午前１０時５２分

CRUISE CONTROL SYSTEM [L3 WITH TC]

01-20 CRUISE CONTROL SYSTEM [L3 WITH TC]
CRUISE CONTROL SWITCH
INSPECTION[L3 WITH TC] . . . . . . . . . 01-20–1

End of Toc
CRUISE CONTROL SWITCH INSPECTION[L3 WITH TC]
WM: CRUISE CONTROL SWITCH

id012039800100 01-20
1. Disconnect the negative battery cable.
2. Remove the driver-side air bag module. (See08-10-6 DRIVER-SIDE AIR BAG MODULE REMOVAL/
INSTALLATION.)
3. Disconnect the cruise control switch connector.
4. Inspect for resistance and continuity between the
cruise control switch terminals using an
ohmmeter.
D
• If not as specified, replace the cruise control CRUISE
switch. CONTROL MAIN E
SWITCH
B
: Continuity : Resistance : Diode
A B C D E F G H
Terminal CANCEL SWITCH
Switch position
B C D E SET/COAST
Cruise control main SWITCH
switch held at on RESUME/ACCEL
CANCEL switch R1 SWITCH
held at on
SET/COAST C
R2
switch held at on
RESUME/ACCEL
R3
switch held at on acxuuw00000280

Neutral
R1: 117.6—122.4 ohms R2: 666.4—693.6 ohms
R3: 2,156—2,244 ohms
acxuuw00000281

End Of Sie

01-20–1
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
CONTROL SYSTEM [L3 WITH TC]
01-40 CONTROL SYSTEM [L3 WITH TC]
CONTROL SYSTEM COMPONENT Voltage Inspection . . . . . . . . . . . . . . . . . 01-40–32
LOCATION INDEX[L3 WITH TC] . . . . . 01-40–2 Circuit Open/Short Inspection . . . . . . . . 01-40–33
CONTROL SYSTEM DIAGRAM ACCELERATOR PEDAL POSITION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–3 (APP) SENSOR INSPECTION
CONTROL SYSTEM WIRING DIAGRAM [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–33
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–4 Voltage Inspection . . . . . . . . . . . . . . . . . 01-40–33 01-40
PCM REMOVAL/INSTALLATION Circuit Open/Short Inspection . . . . . . . . 01-40–34
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–6 FUEL PRESSURE SENSOR
REMOVAL/INSTALLATION
PCM Connector Connection Note . . . . 01-40–6 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–35
PCM INSPECTION[L3 WITH TC] . . . . . 01-40-6–1 FUEL PRESSURE SENSOR
Without Using the M-MDS . . . . . . . . . 01-40-6–1 INSPECTION[L3 WITH TC]. . . . . . . . . . 01-40–35
Inspection Using An Oscilloscope Circuit Open/Short Inspection . . . . . . . . 01-40–36
(Reference) . . . . . . . . . . . . . . . . . . . . 01-40–13 HEATED OXYGEN SENSOR (HO2S)
Using the M-MDS. . . . . . . . . . . . . . . . . 01-40–16 REMOVAL/INSTALLATION
PCM CONFIGURATION [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–37
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–21 HO2S Removal Note. . . . . . . . . . . . . . . 01-40–37
POWER STEERING PRESSURE (PSP) HEATED OXYGEN SENSOR (HO2S)
SWITCH INSPECTION INSPECTION[L3 WITH TC] . . . . . . . . . . 01-40–37
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–22 Front HO2S Current Inspection. . . . . . . 01-40–37
Continuity Inspection . . . . . . . . . . . . . . 01-40–22 Front HO2S Heater
Circuit Open/Short Inspection . . . . . . . 01-40–22 Resistance Inspection . . . . . . . . . . . . . 01-40–38
VARIABLE SWIRL SHUTTER VALVE Front HO2S Circuit
SWITCH INSPECTION Open/Short Inspection (Sensor) . . . . 01-40–38
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–23 Rear HO2S Voltage Inspection . . . . . . . 01-40–39
Voltage Inspection . . . . . . . . . . . . . . . . 01-40–23 Rear HO2S Circuit
Circuit Open/Short Inspection . . . . . . . 01-40–24 Open/Short Inspection (Sensor) . . . . . 01-40–40
ENGINE COOLANT TEMPERATURE Rear HO2S Heater
(ECT) SENSOR Resistance Inspection . . . . . . . . . . . . . 01-40–41
REMOVAL/INSTALLATION Rear HO2S Circuit Open/Short
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–24 Inspection (Heater). . . . . . . . . . . . . . . 01-40–41
ENGINE COOLANT TEMPERATURE CRANKSHAFT POSITION (CKP)
(ECT) SENSOR INSPECTION SENSOR REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–25 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–42
ECT Sensor Resistance Inspection . . . 01-40–25 Removal . . . . . . . . . . . . . . . . . . . . . . . . 01-40–42
Circuit Open/Short Inspection . . . . . . . 01-40–25 Installation . . . . . . . . . . . . . . . . . . . . . . . 01-40–42
MASS AIR FLOW (MAF) SENSOR CRANKSHAFT POSITION (CKP)
INSPECTION[L3 WITH TC] . . . . . . . . . 01-40–26 SENSOR INSPECTION
Visual Inspection . . . . . . . . . . . . . . . . . 01-40–26 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–43
Voltage Inspection . . . . . . . . . . . . . . . . 01-40–26 Air Gap Inspection. . . . . . . . . . . . . . . . . 01-40–43
Circuit Open/Short Inspection . . . . . . . 01-40–26 Visual Inspection . . . . . . . . . . . . . . . . . . 01-40–43
INTAKE AIR TEMPERATURE (IAT) Voltage Inspection . . . . . . . . . . . . . . . . . 01-40–43
SENSOR INSPECTION Circuit Open/Short Inspection . . . . . . . . 01-40–44
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–27 CAMSHAFT POSITION (CMP) SENSOR
Resistance Inspection . . . . . . . . . . . . . 01-40–27 REMOVAL/INSTALLATION
Circuit Open/Short Inspection . . . . . . . 01-40–28 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–45
MANIFOLD ABSOLUTE PRESSURE CAMSHAFT POSITION (CMP) SENSOR
(MAP) SENSOR/BOOST AIR INSPECTION[L3 WITH TC] . . . . . . . . . . 01-40–45
TEMPERATURE SENSOR Visual Inspection . . . . . . . . . . . . . . . . . . 01-40–45
REMOVAL/INSTALLATION Voltage Inspection . . . . . . . . . . . . . . . . . 01-40–45
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–29 Circuit Open/Short Inspection . . . . . . . . 01-40–46
MANIFOLD ABSOLUTE PRESSURE KNOCK SENSOR (KS)
(MAP) SENSOR INSPECTION REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–29 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–47
Circuit Open/Short Inspection . . . . . . . 01-40–30 KNOCK SENSOR (KS) INSPECTION
BOOST AIR TEMPERATURE SENSOR [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–47
INSPECTION[L3 WITH TC]. . . . . . . . . . 01-40–31 Resistance Inspection . . . . . . . . . . . . . . 01-40–47
Resistance Inspection . . . . . . . . . . . . . 01-40–31 Circuit Open/Short Inspection . . . . . . . . 01-40–48
Circuit Open/Short Inspection . . . . . . . 01-40–31 BAROMETRIC PRESSURE (BARO)
THROTTLE POSITION (TP) SENSOR SENSOR INSPECTION
INSPECTION[L3 WITH TC]. . . . . . . . . . 01-40–32 [L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–48

End of Toc
Revised 12/2006 (Ref. No. R215/06) 01-40–1
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
CONTROL SYSTEM [L3 WITH TC]
CONTROL SYSTEM COMPONENT LOCATION INDEX[L3 WITH TC]
WM: ENGINE CONTROL SYSTEM

id014039800200

WU-TWC 7

9
5
6

12
1

2
10
11

8 13

4
acxuuw00000130

1 PCM (Built-in BARO sensor) 4 TP sensor

(See01-40-6 PCM REMOVAL/INSTALLATION[L3 (See01-40-32 THROTTLE POSITION (TP)
WITH TC].) SENSOR INSPECTION[L3 WITH TC].)
(See01-40-7 PCM terminal voltage table 5 ECT sensor
(Reference).) (See01-40-24 ENGINE COOLANT TEMPERATURE
(See01-40-21 PCM CONFIGURATION[L3 WITH (ECT) SENSOR REMOVAL/INSTALLATION[L3
TC].) WITH TC].)
(See01-40-48 BAROMETRIC PRESSURE (BARO) (See01-40-25 ENGINE COOLANT TEMPERATURE
SENSOR INSPECTION[L3 WITH TC].) (ECT) SENSOR INSPECTION[L3 WITH TC].)
2 PSP switch 6 MAF/IAT sensor
(See01-40-22 POWER STEERING PRESSURE (See01-40-26 MASS AIR FLOW (MAF) SENSOR
(PSP) SWITCH INSPECTION[L3 WITH TC].) INSPECTION[L3 WITH TC].)
3 APP sensor (See01-40-27 INTAKE AIR TEMPERATURE (IAT)
(See01-40-33 ACCELERATOR PEDAL POSITION SENSOR INSPECTION[L3 WITH TC].)
(APP) SENSOR INSPECTION[L3 WITH TC].)

01-40–2
1871-1U-06B(01-40).fm 3 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

7 HO2S 10 KS
(See01-40-37 HEATED OXYGEN SENSOR (HO2S) (See01-40-47 KNOCK SENSOR (KS) REMOVAL/
REMOVAL/INSTALLATION[L3 WITH TC].) INSTALLATION[L3 WITH TC].)
(See01-40-37 HEATED OXYGEN SENSOR (HO2S) (See01-40-47 KNOCK SENSOR (KS)
INSPECTION[L3 WITH TC].) INSPECTION[L3 WITH TC].)
8 MAP/boost air temperature sensor 11 CKP sensor
(See01-40-29 MANIFOLD ABSOLUTE PRESSURE (See01-40-42 CRANKSHAFT POSITION (CKP)
(MAP) SENSOR/BOOST AIR TEMPERATURE SENSOR REMOVAL/INSTALLATION[L3 WITH
SENSOR REMOVAL/INSTALLATION[L3 WITH TC].)
01-40
TC].) (See01-40-43 CRANKSHAFT POSITION (CKP)
(See01-40-29 MANIFOLD ABSOLUTE PRESSURE SENSOR INSPECTION[L3 WITH TC].)
(MAP) SENSOR INSPECTION[L3 WITH TC].) 12 Fuel pressure sensor
(See01-40-31 BOOST AIR TEMPERATURE (See01-40-35 FUEL PRESSURE SENSOR
SENSOR INSPECTION[L3 WITH TC].) REMOVAL/INSTALLATION[L3 WITH TC].)
9 CMP sensor (See01-40-35 FUEL PRESSURE SENSOR
(See01-40-45 CAMSHAFT POSITION (CMP) INSPECTION[L3 WITH TC].)
SENSOR REMOVAL/INSTALLATION[L3 WITH 13 Variable swirl shutter valve switch
TC].) (See01-40-23 VARIABLE SWIRL SHUTTER VALVE
(See01-40-45 CAMSHAFT POSITION (CMP) SWITCH INSPECTION[L3 WITH TC].)
SENSOR INSPECTION[L3 WITH TC].)

End Of Sie
CONTROL SYSTEM DIAGRAM[L3 WITH TC]
id014039800300

MAP/BOOST AIR BARO SENSOR

TEMPERATURE
SENSOR

VARIABLE SWIRL
SHUTTER VALVE SWITCH
PCM
CMP SENSOR

TP SENSOR APP SENSOR

ECT SENSOR KS

CKP SENSOR

HO2S (FRONT) FUEL PRESSURE MAF/IAT SENSOR

HO2S (REAR)
SENSOR

: TO PCM

acxuuw00000131

End Of Sie

01-40–3
1871-1U-06B(01-40).fm 4 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

CONTROL SYSTEM WIRING DIAGRAM[L3 WITH TC]
id014039800400

c 2BG
FUEL INJECTOR
1AY
2BB NO.1
b
a 1BE FUEL INJECTOR
NO.4
2AZ
1BA
2BH
FUEL INJECTOR
1AZ NO.3
2BD

FUEL INJECTOR
NO.2
2BC

1AR 2BF
IAT SENSOR FUEL INJECTOR RELAY
1M 2BE

MAF 1AK
1AW
SENSOR
1P
2C HO2S HEATER (FRONT)
1Q
HO2S HEATER (REAR)
1AV 2D

APP 1Y
SENSOR 1AE FAN CONTROL MODULE NO.1
1U

1AC
COOLING FAN
RELAY NO.1
1AJ

PCM
1AO b
2P
FUEL PRESSURE SENSOR
2R 1R FAN CONTROL MODULE NO.2

2I
COOLING FAN
2AY RELAY NO.2
ECT SENSOR 1K
2AH
A/C RELAY b

1I
2AV
FUEL PUMP SPEED CONTROL RELAY
MAP 1AA
2AG
SENSOR
2N
BOOST AIR TEMPERATURE
FUEL PUMP RESISTOR
SENSOR 2AU

1BC
HO2S (REAR)
2Q FUEL PUMP RELAY
1H

2M b
1AT

2AD
MAIN RELAY
HO2S
(FRONT) 2AC
STARTER RELAY c
2Z 1B
IGNITION
2Y
SWITCH

DRIVE-BY-WIRE-RELAY
2X
1BF
CKP SENSOR
2W 1AX
BATTERY
CMP SENSOR 2S
f a
d e
acxuuw00002265

01-40–4
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
CONTROL SYSTEM [L3 WITH TC]

d e f
EGR VALVE
2AQ

2AM
2V
KS 01-40
2U 2AR

2AN

2AK

2AP
EVAP SYSTEM LEAK
DETECTION PUMP
TP SENSOR
2AL 1V
b
2AO 1AS

PURGE SOLENOID VALVE

BRAKE SWITCH NO.1 2AB
1AB WASTEGATE CONTROL
SOLENOID VALVE
BRAKE SWITCH NO.2 2AA
1AF
VARIABLE SWIRL
SOLENOID VALVE
2AS
VARIABLE SWIRL SHUTTER VALVE SWITCH OCV
2AE 2AF

2E
REFRIGERANT PRESSURE SWITCH (HIGH, LOW)
1AU 2B
THROTTLE
REFRIGERANT PRESSURE SWITCH (MIDDLE) 2A
ACTUATOR
1J

2F
PSP SWITCH SPILL VALVE CONTROL
2T
2G
SOLENOID VALVE

2H

1BB

CRUISE CONTROL SWITCH 1BG

1AQ
1BD

1BH

2BA IGNITION COIL NO.1

GENERATOR 2AJ
2AW IGNITION COIL NO.2

2AX IGNITION COIL NO.3

1AM
CAN
1AI
2AT IGNITION COIL NO.4

2AI GENERATOR

acxuuw00002266

End Of Sie
WM: PCM

01-40–5
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
CONTROL SYSTEM [L3 WITH TC]
PCM REMOVAL/INSTALLATION[L3 WITH TC]
id014039802400

Note
• For PCM replacement, set up the M-MDS and perform the PCM configuration. (See 01-40-21 PCM
CONFIGURATION[L3 WITH TC].)

1. Disconnect the negative battery cable.

2. Remove the charge air cooler duct. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
3. Remove the Battery and battery tray. (See01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the mudguard (LH).
5. Remove in the order indicated in the table.
6. When replacing the PCM on the vehicles, perform the following.
• PCM parameter reset (See09-14-11 IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY
ADDITION AND CLEARING[ADVANCED KEYLESS SYSTEM].) (See09-14-20 IMMOBILIZER SYSTEM
COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING[KEYLESS ENTRY SYSTEM].)
7. Install in the reverse order of removal.

VIEW FROM A
A

7.8—10.8
{80—110,
69—95} FRONT
3
1

7.8—10.8
{80—110, 69—95}

FRONT TIRE (LH) SIDE

7.8—10.8
{80—110, 69—95} 7.8—10.8
{80—110, 69—95}

N·m {kgf·cm, in·lbf}

acxuuw00001858

1 PCM connector 2 PCM

3 PCM bracket
(See 01-40-6 PCM Connector Connection Note.)

PCM Connector Connection Note

Caution
• If the PCM connector is inserted at an
angle and the lever is moved, the
connector could be damaged. Verify that
the PCM connector is inserted straight.

End Of Sie

acxaaw00000768

01-40–6 Revised 12/2006 (Ref. No. R215/06)

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
CONTROL SYSTEM [L3 WITH TC]
1. Verify that the PCM connector lever is tilted
01-40-6
WM: PCM CONTROL SYSTEM [L3 WITH TC]

LEVER
towards the wiring harness side as shown in the PCM
WIRING
figure.
HARNESS
2. Insert the PCM connector straight until it contacts
the PCM and verify that the lever reverts upward
naturally.

01-40

PCM CONNECTOR
acxuuw00002577

3. Push the lever until a click is heard.

End Of Sie

acxuuw00002578

PCM INSPECTION[L3 WITH TC]

id014039802500
Without Using the M-MDS
Note
• The PCM terminal voltage can vary with the conditions when measuring and changes due to aged
deterioration on the vehicle, causing false diagnosis. Therefore determine comprehensively where the
malfunction occurs among the input systems, output systems, and the PCM.
PCM inspection preparation
1. Disconnect the negative battery cable.
2. Remove the battery and battery tray. (See 01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
3. Remove the windshield wiper arm and blade. (See09-19-3 WINDSHIELD WIPER ARM AND BLADE
REMOVAL/INSTALLATION.)
4. Remove the cowl grille. (See09-16-11 COWL GRILLE REMOVAL/INSTALLATION.)
5. Remove the windshield wiper motor. (See09-19-6 WINDSHIELD WASHER MOTOR REMOVAL/
INSTALLATION.)
6. Remove the cowl panel. (See09-10-13 COWL PANEL REMOVAL/INSTALLATION.)
7. Remove the PCM bracket with the PCM connector still connected. (See01-40-6-1 Verify that the PCM
connector lever is tilted towards the wiring harness side as shown in the figure..)
8. Connect the negative battery cable.
End Of Sie

Revised 12/2006 (Ref. No. R215/06) 01-40-6–1

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
CONTROL SYSTEM [L3 WITH TC]

THIS PAGE INTENTIONALLY

LEFT BLANK

01-40-6–2
1871-1U-06B(01-40).fm 7 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

PCM terminal voltage table (Reference)

PCM
WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C 01-40
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000125

Voltage
Terminal Signal Connected to Test condition Inspection item
(V)
1A — — — — —
Ignition switch off after 10 s Below 1.0 • Starter relay
1B Starter relay control Starter relay • Related wiring
Ignition switch to the ON position Below 1.0 harness
1C — — — — —
1D — — — — —
1E — — — — —
1F — — — — —
1G — — — — —
Ignition switch to the ON position
B+ • Fuel pump relay
after 10 s
1H Fuel pump control Fuel pump relay • Related wiring
Cranking B+
harness
Idle Below 1.0
A/C operating Below 1.0 • A/C relay
1I A/C A/C relay Idle A/C not • Related wiring
B+ harness
operating
Refrigerant
pressure is
more than the
specification. Below 1.0
(Refrigerant
pressure switch • Refrigerant pressure
Refrigerant Refrigerant (middle) is on.) switch
1J pressure switch pressure switch A/C ON
Refrigerant • Related wiring
(middle) (middle)
pressure is less harness
than the
specification. B+
(Refrigerant
pressure switch
(middle) is off.)
1K — — — — —
1L — — — — —
IAT 20 °C
Ignition switch {68 °F} 2.4—2.6 • MAF/IAT sensor
1M IAT MAF/IAT sensor to the ON • Related wiring
position IAT 30 °C harness
1.7—1.9
{86 °F}
1N — — — — —
1O — — — — —
• Related wiring
1P MAF sensor ground MAF/IAT sensor Under any condition Below 1.0
harness
• Related wiring
Approx.
1Q APP sensor voltage APP sensor Ignition switch to the ON position harness
5.0
• APP sensor

01-40–7
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CONTROL SYSTEM [L3 WITH TC]

Voltage
Terminal Signal Connected to Test condition Inspection item
(V)
Fan not operate Below 1.0 • Fan control module
Fan control module Fan control No.2
1R Approx.
(No.2) module No.2 Fan operates • Related wiring
3.5 harness
1S — — — — —
1T — — — — —
• Related wiring
1U APP sensor ground APP sensor Under any condition Below 1.0 harness
• APP sensor
• EVAP leak detection
EVAP leak
EVAP leak pump
1V detection pump Ignition switch to the ON position B+
detection pump • Related wiring
(solenoid)
harness
1W — — — — —
1X — — — — —
When the
accelerator 1.56—
pedal is 1.65
Ignition switch released • APP sensor
1Y APP sensor (No.1) APP sensor to the ON • Related wiring
position When the harness
accelerator 3.65—
pedal is 3.93
depressed
1Z — — — — —
Ignition switch to the ON position
B+ • Fuel pump relay
after 10 s
1AA Fuel pump control Fuel pump relay • Related wiring
Cranking Below 1.0
harness
Idle Below 1.0
Brake pedal depressed B+ • Brake switch No.1
1AB Brake (No.1) Brake switch No.1 • Related wiring
Brake pedal released Below 1.0 harness
When the
accelerator 1.01—
pedal is 1.10
Ignition switch released • APP sensor
1AC APP sensor (No.2) APP sensor (No.2) to the ON • Related wiring
position When the harness
accelerator 3.10—
pedal is 3.38
depressed
1AD — — — — —
• Fan control module
• Inspect using the wave profile.
Fan control module Fan control No.1
1AE (See01-40-6 PCM inspection
(No.1) module No.1 • Related wiring
preparation.)
harness
Brake pedal depressed B+ • Brake switch No.2
1AF Brake (No.2) Brake switch No.2 • Related wiring
Brake pedal released Below 1.0 harness
1AG — — — — —
1AH — — — — —
CAN related Because this terminal is for CAN, no valid • Related wiring
1AI CAN (L)
module determination of terminal voltage is possible harness
Approx. • Related wiring
1AJ Constant voltage APP sensor Ignition switch to the ON position
5.0 harness
Approx.
Ignition switch to the ON position
0.7 • MAF/IAT sensor
1AK MAF MAF/IAT sensor • Related wiring
Approx. harness
Idle
1.3
1AL — — — — —
CAN related Because this terminal is for CAN, no valid • Related wiring
1AM CAN (H)
module determination of terminal voltage is possible harness
1AN — — — — —

01-40–8
1871-1U-06B(01-40).fm 9 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Voltage
Terminal Signal Connected to Test condition Inspection item
(V)
1AO — — — — —
1AP — — — — —
ON/OFF switch
Approx. 0
pressed in
CANCEL switch Approx.
pressed in 1.1 01-40
SET/COAST
Ignition switch Approx. • Cruise control switch
Cruise control Cruise control switch pressed
1AQ to the ON 3.1 • Related wiring
switch switch in
position harness
RES/ACCEL
Approx.
switch pressed
4.2
in
Approx.
Except above
5.0
• Related wiring
1AR IAT sensor ground MAF/IAT sensor Under any condition Below 1.0
harness
Ignition switch to the ON position Below 1.0 • EVAP leak detection
EVAP leak
EVAP leak pump
1AS detection pump
detection pump Idling B+ • Related wiring
(pump)
harness
Ignition switch off after 10 s B+ • Main relay
1AT Main relay control Main relay • Related wiring
Ignition switch to the ON position Below 1.0 harness
• Refrigerant pressure
Refrigerant
A/C switch and switch (high, low)
1AU A/C on signal pressure switch Idle B+
fan switch on • Related wiring
(high, low)
harness
• Related wiring
1AV APP sensor ground APP sensor Under any condition Below 1.0
harness
• Related wiring
1AW Injector control Fuel Injector relay Under any condition Below 1.0
harness
Ignition switch off after 10 s B+ • Related wiring
1AX Drive-by-wire relay Drive-by-wire relay
Ignition switch to the ON position Below 1.0 harness
Ignition switch off Below 1.0 • Related wiring
1AY Ignition switch Ignition switch
Ignition switch to the ON position B+ harness
• Related wiring
1AZ Ground Ground Under any condition Below 1.0
harness
• Battery
Back-up power Battery (positive
1BA Under any condition B+ • Related wiring
supply terminal)
harness
• Related wiring
1BB Ground Ground Under any condition Below 1.0
harness
• HO2S (rear)
1BC Sensor ground HO2S (rear) Under any condition Below 1.0 • Related wiring
harness
• Related wiring
1BD Ground Ground Under any condition Below 1.0
harness
Ignition switch off after 10 s Below 1.0 • Battery
1BE B+ Main relay • Related wiring
Ignition switch to the ON position B+ harness
Ignition switch off after 10 s Below 1.0 • Related wiring
1BF Drive-by-wire relay Drive-by-wire relay
Ignition switch to the ON position B+ harness
• Related wiring
1BG Ground Ground Under any condition Below 1.0
harness
• Related wiring
1BH Ground Ground Under any condition Below 1.0
harness
Ignition switch off
Approx. • Throttle actuator
Throttle actuator
2A Throttle body 1.5 • Related wiring
control (+)
Ignition switch to the ON position B+ harness

01-40–9
1871-1U-06B(01-40).fm 10 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Voltage
Terminal Signal Connected to Test condition Inspection item
(V)
Ignition switch off
Approx. • Throttle actuator
Throttle actuator
2B Throttle body 1.5 • Related wiring
control (–)
Ignition switch to the ON position B+ harness
• Inspect using the wave profile. • HO2S (front)
HO2S (front) heater HO2S (front)
2C (See01-40-6 PCM inspection • Related wiring
control heater
preparation.) harness
• Engine speed above 5,000 • HO2S (rear) heater
HO2S (rear) heater HO2S (rear)
2D rpm (Heater control not B+ • Related wiring
control heater
operating) harness
Main relay, Ignition switch off after 10 s Below 1.0
Variable swirl • Main relay
variable swirl
2E solenoid valve • Related wiring
solenoid valve, Ignition switch to the ON position B+
power supply harness
CMP sensor
Ignition switch off Below 1.0 • High pressure fuel
Approx. pump
High pressure fuel High pressure fuel Ignition switch to the ON position
2F 9.7 • Related wiring
pump control (+) pump
Approx. harness Related
Idle wiring harness
9.4
Ignition switch off Below 1.0 • High pressure fuel
Approx. pump
High pressure fuel High pressure fuel Ignition switch to the ON position
2G 9.6 • Related wiring
pump control (–) pump
Approx. harness Related
Idle wiring harness
8.6
• Related wiring
2H Ground Body ground Under any condition Below 1.0
harness
Constant voltage Fuel pressure Approx. • Related wiring
2I Ignition switch to the ON position
(Vref) sensor 5.0 harness
2J — — — — —
2K — — — — —
2L — — — — —
• Related wiring
2M Sensor ground HO2S (front) Under any condition Below 1.0
harness
IAT 20 °C • Boost air temperature
MAP/Boost air Ignition switch 2.4—2.6
Boost air {68 °F} sensor
2N temperature to the ON
temperature IAT 30 °C • Related wiring
sensor position 1.7—1.9
{86 °F} harness
2O — — — — —
• Fuel pressure sensor
Fuel pressure
2P Sensor ground Under any condition Below 1.0 • Related wiring
sensor
harness
• HO2S (rear)
2Q HO2S (rear) HO2S (rear) Idle 0—1 • Related wiring
harness
Ignition switch off Below 1.0
Approx. • Fuel pressure sensor
Fuel pressure Fuel pressure Ignition switch to the ON position
2R 1.1 • Related wiring
sensor sensor
Approx. harness
Idle
1.7
• Inspect using the wave profile. • CMP sensor
2S CMP CMP sensor (See01-40-6 PCM inspection • Related wiring
preparation.) harness
Steering wheel • PSP switch
at straight B+ • Power steering
2T PSP PSP switch Idle ahead position system
While turning • Related wiring
Below 1.0 harness
steering wheel

01-40–10
1871-1U-06B(01-40).fm 11 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Voltage
Terminal Signal Connected to Test condition Inspection item
(V)
Ignition switch to the ON position
(Use digital type voltmeter,
• KS
because measurement voltage Approx.
2U Knocking (+) KS • Related wiring
will be detected less than true 4.3
harness
voltage when using analog type
voltmeter)
01-40
Ignition switch to the ON position
(Use digital type voltmeter,
• KS
because measurement voltage
2V Knocking (–) KS Below 1.0 • Related wiring
will be detected less than true
harness
voltage when using analog type
voltmeter)
• Inspect using the wave profile. • CKP sensor
2W CKP CKP sensor (See01-40-6 PCM inspection • Related wiring
preparation.) harness
KS, CMP sensor,
CKP sensor,
HO2S (Front), • Related wiring
2X Internal ground Under any condition Below 1.0
Variable swirl harness
solenoid valve, TP
sensor
Ignition switch off after 10s Below 1.0 • HO2S (front)
HO2S (front)
2Y HO2S (front) Approx. • Related wiring
calibration resistor Ignition switch to the ON position
3.9 harness
• HO2S (front)
HO2S (front) power Approx.
2Z HO2S (front) Idle (after warm up) • Related wiring
supply 6.2
harness
• Wastegate control
• Inspect using the wave profile.
Wastegate control Wastegate control solenoid valve
2AA (See01-40-6 PCM inspection
solenoid valve solenoid valve • Related wiring
preparation.)
harness
• Inspect using the wave profile. • Purge solenoid valve
Purge solenoid Purge solenoid
2AB (See01-40-6 PCM inspection • Related wiring
valve valve
preparation.) harness
• HO2S (front)
Approx.
2AC HO2S (front) VSIP HO2S (front) Idle (after warm up) • Related wiring
3.7
harness
Idle (after warm up)
Approx. • HO2S (front)
2AD HO2S (front) IP+ HO2S (front) 3.7 • Related wiring
After racing 2.1—4.8 harness
variable swirl shutter valve close Below 1.0 • Variable swirl shutter
Variable swirl Variable swirl
valve switch
2AE shutter valve shutter valve
variable swirl shutter valve open B+ • Related wiring
monitor switch
harness
• Inspect using the wave profile. • OCV valve
2AF OCV control OCV (See01-40-6 PCM inspection • Related wiring
preparation.) harness
Ignition switch to the ON position)
Approx. • MAP sensor
Manifold absolute
2AG MAP sensor 1.9 • Related wiring
pressure
Idle (after warm up) Below 1.0 harness
ECT 20 °C 3.04—
Ignition switch {68 °F} 3.14 • ECT sensor
2AH ECT ECT sensor to the ON • Related wiring
position ECT 60 °C 1.29— harness
{140 °F} 1.39
• Inspect using the wave profile. • Generator
Generator field coil Generator
2AI (See01-40-6 PCM inspection • Related wiring
control (terminal D)
preparation.) harness
• Inspect using the wave profile. • Generator
Generator output Generator
2AJ (See01-40-6 PCM inspection • Related wiring
voltage (terminal P)
preparation.) harness

01-40–11
1871-1U-06B(01-40).fm 12 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Voltage
Terminal Signal Connected to Test condition Inspection item
(V)
Ignition switch APP is released 0.4—0.6 • TP sensor
2AK TP sensor (No. 1) TP sensor (No. 1) to the ON APP is • Related wiring
position 4.7—4.9 harness
depressed
Ignition switch APP is released 4.4—4.6 • TP sensor
2AL TP sensor (No. 2) TP sensor (No. 2) to the ON APP is • Related wiring
position 0.1—0.3 harness
depressed
Ignition switch to the ON position B+ • EGR valve
EGR valve #3 coil EGR valve
2AM • Related wiring
control (terminal A) Ignition switch off Below 1.0 harness
Ignition switch to the ON position B+ • EGR valve
EGR valve #6 coil EGR valve
2AN • Related wiring
control (terminal F) Idle B+ harness
• TP sensor
Constant voltage Approx.
2AO TP sensor Ignition switch to the ON position • Related wiring
(Vref) 5.0
harness
• TP sensor
2AP TP sensor Ground TP sensor Under any condition Below 1.0 • Related wiring
harness
Ignition switch to the ON position Below 1.0 • EGR valve
EGR valve #1 coil EGR valve
2AQ • Related wiring
control (terminal E) Idle Below 1.0 harness
Ignition switch to the ON position B+ • EGR valve
EGR valve #4 coil EGR valve
2AR • Related wiring
control (terminal B) Ignition switch off Below 1.0 harness
ECT 62 °C {144 °F} or more and • Variable swirl
B+
Variable swirl Variable swirl engine speed 3,250 rpm or more solenoid valve
2AS
control solenoid valve ECT less than 62 °C {144 °F} and • Related wiring
Below 1.0 harness
engine speed less than3,250 rpm
• Inspect using the wave profile. • Ignition coil No.4
Ignition coil (No.4
2AT IGT4 (See01-40-6 PCM inspection • Related wiring
cylinders)
preparation.) harness
Constant voltage Approx. • Related wiring
2AU MAP sensor Ignition switch to the ON position
(Vref) 5.0 harness
• Related wiring
2AV Sensor ground MAP sensor Under any condition Below 1.0
harness
• Inspect using the wave profile. • Ignition coil No.2
Ignition coil (No.2
2AW IGT2 (See01-40-6 PCM inspection • Related wiring
cylinders)
preparation.) harness
• Inspect using the wave profile. • Ignition coil No.3
Ignition coil (No.3
2AX IGT3 (See01-40-6 PCM inspection • Related wiring
cylinders)
preparation.) harness
• ECT sensor
2AY Sensor ground ECT sensor Under any condition Below 1.0 • Related wiring
harness
• Inspect using the wave profile. • Fuel injector No.4
Fuel injection Fuel injector
2AZ (See01-40-6 PCM inspection • Related wiring
(–)(#4) (No.4)
preparation.) harness
• Inspect using the wave profile. • Ignition coil No.1
Ignition coil (No.1
2BA IGT1 (See01-40-6 PCM inspection • Related wiring
cylinders)
preparation.) harness
• Inspect using the wave profile. • Fuel injector No.1
Fuel injection Fuel injector
2BB (See01-40-6 PCM inspection • Related wiring
(–)(#1) (No.1)
preparation.) harness
• Inspect using the wave profile. • Fuel injector No.2
Fuel injection Fuel injector
2BC (See01-40-6 PCM inspection • Related wiring
(–)(#2) (No.2)
preparation.) harness
• Inspect using the wave profile. • Fuel injector No.3
Fuel injection Fuel injector
2BD (See01-40-6 PCM inspection • Related wiring
(–)(#3) (No.3)
preparation.) harness
Ignition switch off Below 1.0 • Fuel Injector relay
Fuel injector power
2BE Fuel Injector relay • Related wiring
supply 1 Ignition switch to the ON position B+ harness

01-40–12
1871-1U-06B(01-40).fm 13 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Voltage
Terminal Signal Connected to Test condition Inspection item
(V)
Ignition switch off Below 1.0 • Fuel Injector relay
Fuel injector power
2BF Fuel Injector relay • Related wiring
supply 2 Ignition switch to the ON position B+ harness
• Fuel injector No.1,
• Inspect using the wave profile.
Fuel injection Fuel injector No.4
2BG (See01-40-6 PCM inspection
(+)(#1, #4) (No.1,No.4) • Related wiring 01-40
preparation.)
harness
• Fuel injector No.2,
• Inspect using the wave profile.
Fuel injection Fuel injector No.3
2BH (See01-40-6 PCM inspection
(+)(#2, #3) (No.2, No.3) • Related wiring
preparation.)
harness

Inspection Using An Oscilloscope (Reference)

Fan control module (No.1) signal
PCM terminals
• 1AE (+)— body ground (–)
Oscilloscope setting
• 5 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)
0V

acxuuw00000274

HO2S (front) heater control signal

PCM terminals
• 2C (+)— body ground (–)
Oscilloscope setting
• 2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)

0V

acxuuw00000275

CMP sensor signal

PCM terminals
• 2S (+)— body ground (–)
Oscilloscope setting
• 2 V/DIV (Y), 100 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)
0V

acxuuw00000127

01-40–13
1871-1U-06B(01-40).fm 14 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

CKP sensor signal
PCM terminals
• 2W (+)— body ground (–)
Oscilloscope setting
• 2 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)

ov

acxuuw00000128

Wastegate control solenoid valve signal

PCM terminals
• 2AA (+)— body ground (–)
Oscilloscope setting
• 20 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Ignition switch to the ON position 0V

acxuuw00002325

Purge control signal

PCM terminals
• 2AB (+)— body ground (–)
Oscilloscope setting
• 10 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Engine speed is 2,000 rpm

0V

ampjjw00001527

OCV signal
PCM terminals
• 2AF (+)— body ground (–)
Oscilloscope setting
• 2.5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)

ov

acxuuw00000129

01-40–14
1871-1U-06B(01-40).fm 15 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Generator field coil control signal
PCM terminals
• 2AI (+)— body ground (–)
Oscilloscope setting
• 0.5 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (engine speed approx. 650
rpm, no load) 0V
01-40

ampjjw00001528

Generator output voltage signal

PCM terminals
• 2AJ (+)— body ground (–)
Oscilloscope setting
• 2 V/DIV (Y),1 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)

0V

ampjjw00001529

IGT1, IGT2, IGT3, IGT4 control signals

PCM terminals
• IGT1 (No.1): 2BA (+)— body ground (–)
• IGT2 (No.2): 2AW (+)— body ground (–)
• IGT3 (No.3): 2AX (+)— body ground (–)
• IGT4 (No.4): 2AT (+)— body ground (–)
Oscilloscope setting
• 2 V/DIV (Y), 20 ms/DIV (X), DC range
ov
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)

ampjjw00000781

Fuel injection control (–)

PCM terminals
• Fuel injection No.1: 2BB (+)— body ground (–)
• Fuel injection No.2: 2BC (+)— body ground (–)
• Fuel injection No.3: 2BD (+)— body ground (–)
• Fuel injection No.4: 2AZ (+)— body ground (–)
Oscilloscope setting
• 10 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off) 0V

acxuuw00002326

01-40–15
1871-1U-06B(01-40).fm 16 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Fuel injection control (+)
PCM terminals
• Fuel injection No.1, No.4: 2BG (+)— body ground
(–)
• Fuel injection No.2, No.3: 2BH (+)— body ground
(–)
Oscilloscope setting
• 20 V/DIV (Y), 400 µs/DIV (X), DC range
Vehicle condition 0V
• Idle after warm up (no load, P/S off, A/C off)

acxuuw00000277

Using the M-MDS

Note
• PIDs for the following parts are not available on this model. Perform the specific inspections for the
following parts:
— CMP sensor (See01-40-45 CAMSHAFT POSITION (CMP) SENSOR INSPECTION[L3 WITH TC].)
— Main relay

1. Connect the M-MDS to the DLC-2.

2. Turn the ignition switch to the ON position.
3. Measure the PID value.
• If PID value is not within the specification,
follow the instructions in the “Inspection item“
column.

Note
• The PID/DATA MONITOR function monitors
the calculated value of the input/output
signals in the PCM. Therefore, an output
DLC-2
device malfunction is not directly indicated
acxuuw00000278
as a malfunction of the monitored value for
the output device. If a monitored value of an
output device is out of specification, inspect the monitored value of the input device related to the output
control.
• For input/output signals except those of the monitoring items, use a voltmeter to measure the PCM
terminal voltage.
• The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are
as follows.
— ACCS, ALTF, ARPMDES, FAN_DUTY, EVAPCP, FP, FUELPW, GENVDSD, HTR11, HTR12, IMRC,
INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, test, VT DUTY1, WGC

01-40–16
1871-1U-06B(01-40).fm 17 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

PID/DATA monitor table (reference)
Monitor item Unit/ Condition/Specification PCM
Inspection item
(Definition) Condition (Reference) terminal
AAT (Ambient air Ignition switch to the ON position:
°C °F • MAF/IAT sensor 1M
temperature) Indicate the ambient air temperature
Refrigerant pressure is more than
AC_REQ (Refrigerant the specification or less than the
• Refrigerant pressure switch (high,
pressure switch (high, On/Off specification. (Refrigerant pressure 1AU 01-40
low)
low)) switch (high, low) is off.): Off
Except above: On
• The following PIDs:
A/C relay is ON: On
ACCS (A/C relay) On/Off — RPM, TP, ECT 1I
A/C relay is OFF: Off
• A/C relay
2Q
2Z
AFR (Air/fuel ratio) — Target air-oil ratio is displayed • HO2S
2AC
2AD
2Q
AFR_ACT (Actual air/ 2Z
— Actual air-oil ratio is displayed • HO2S
fuel ratio) 2AC
2AD
Ignition switch to the ON position:
0% • The following PIDs:
ALTF (Generator field
% Idle: 0— 100% — IAT, ECT, RPM, VPWR, ALTT V 2AI
coil control duty value)
Just after A/C switch ON and fan • Generator
switch ON at idle: Duty value rises
Idle (no E/L): Approx. 14 V (This is
ALTT V (Generator
V an internal calculation value and • Generator 2AJ
output voltage)
differs from the terminal voltage.)
Accelerator pedal is released: 0% • The following PIDs:
APP (Accelerator pedal 1Y
% Accelerator pedal is depressed: — APP1, APP2
position) 1AC
100% • APP sensor
Accelerator pedal is released:
31.0— 32.4%
%
Accelerator pedal is depressed:
APP1 (Accelerator 69.8— 81.8%
• APP sensor 1Y
pedal position) Accelerator pedal is released:
1.56— 1.65 V
V
Accelerator pedal is depressed:
3.65— 3.93 V
Accelerator pedal is released:
20.2— 21.4%
%
Accelerator pedal is depressed:
APP2 (Accelerator 58.8— 70.8%
• APP sensor 1AC
pedal position) Accelerator pedal is released:
1.01— 1.10 V
V
Accelerator pedal is depressed:
3.10— 3.38 V
Shift position: P or N
• The following PIDs:
— No load: 700 rpm
ARPMDES (Target — IAT, RPM, MAP, ECT, MAF, TP,
RPM — E/L operating: 700 rpm —
engine speed) INGEAR, PSP, ALTT V
— P/S operating: 700 rpm
• CKP sensor
— A/C ON: 700 rpm
Ignition switch is ON at sea level:
kPa, Bar, psi
BARO (Barometric Approx. 101 kPa {1.01 Bar, 14.6psi}
• BARO sensor —
pressure) Ignition switch is ON at sea level:
V
Approx. 4.0 V
• MAP/boost air temperature
BAT °C Boost air temperature is displayed 2N
sensor
Boost air temperature 20 °C {68 °F}:
2.4— 2.6 V • MAP/boost air temperature
BAT_V V 2N
Boost air temperature 30 °C {86 °F}: sensor
1.7— 1.9 V
BOO Brake pedal depressed: On 1AB
On/Off • Brake switch No.1/No.2
(Brake switch) Brake pedal released: Off 1AF

01-40–17
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CONTROL SYSTEM [L3 WITH TC]

Monitor item Unit/ Condition/Specification PCM
Inspection item
(Definition) Condition (Reference) terminal
BPA
Brake pedal depressed: On 1AB
(Brake pressure On/Off • Brake switch No.1/No.2
Brake pedal released: Off 1AF
applied switch)
CATT11_DSD
Indicate the estimated catalytic • Perform applicable DTC
(Estimated catalytic °C °F —
converter temperature troubleshooting.
converter temperature)
Ignition switch to the ON position:
CHRGLP (Generator • Perform applicable DTC
On/Off On —
warning light) troubleshooting.
Idle: Off
Refrigerant pressure is more than
the specification. (Refrigerant
COLP (Refrigerant
pressure switch (middle) is on.): On • Refrigerant pressure switch
pressure switch ON/OFF 1J
Refrigerant pressure is less than the (middle)
(middle))
specification. (Refrigerant pressure
switch (middle) is off.): Off
DTCCNT (Number of • Perform applicable DTC
— Indicates number of DTC —
DTC detected) troubleshooting.
Ignition switch to the ON position:
°C °F
ECT (Engine coolant Indicate the ECT
• ECT sensor 2AH
temperature) ECT 20 °C {68 °F}: 3.04— 3.14 V
V
ECT 60 °C {140 °F}: 1.29— 1.39 V
EQ_RAT11
• Perform applicable DTC
(Equivalence ratio — Idling after warm-up: Approx. 1 —
troubleshooting.
(lambda))
EQ_RAT11_DSD • Perform applicable DTC
— Idling after warm-up: Approx. 1 —
(Front oxygen sensor) troubleshooting.
ETC_ACT (Electronic • Perform applicable DTC 2AK
° Indicate the desired TP by angle
throttle control actual) troubleshooting. 2AL
% Indicate the desired TP by percent • The following PIDs:
ETC_DSD (Electronic 2AK
— APP1, APP2, ETC_ACT
throttle control desired) ° Indicate the desired TP by angle • TP sensor
2AL
• The following PIDs:
EVAPCP (Purge Ignition switch to the ON position: — IAT, RPM, ECT, MAF,
solenoid valve duty % 0% O2S11,BARO, INGEAR, 2AB
value) Idle: 0% VPWR
• Purge solenoid valve
ECT less than 98 °C {208 °F}: 0%
ECT 100 °C {212 °F}: 30% 1R
FAN_DUTY % • Fan control module
ECT 106 °C {223 °F}: 70% 1AE
ECT 110 °C {230 °F}: 100%
FIA (Fuel injection • Fuel injector
— Indicate the fuel injection amount. —
amount) • Fuel Injector relay
FLI Fuel gauge level F: Approx. 100% • Perform applicable DTC
% —
(Fuel level) Fuel gauge level E: Approx. 0% troubleshooting.
• The following PIDs:
Idle: On
FP (Fuel pump relay) On/Off — RPM 1H
Cranking: On
• Fuel pump relay
Spill valve control solenoid valve
work: On 2F
FP_Hi_PRES On/Off • High pressure fuel pump
Spill valve control solenoid valve 2G
don’t work: Off
Idle: Approx. 3 MPa
FUEL_PRES Pa Load 60 % or more: Approx. 11.5 • Fuel pressure sensor 2R
MPa
Ignition switch to the ON position:
FUEL_PRES_V V Approx. 1.1 V • Fuel pressure sensor 2R
Idle: Approx. 1.7 V
• The following PIDs:
2AZ
— ECT, IAT, RPM, TP, MAF,
FUELPW (Fuel injector 2BB
sec Idle: Approx. 2.0 ms O2S11, O2S12, MAP, VSS,
duration) 2BC
TR, BOO, AC_REQ, COLP,
2BD
VPWR

01-40–18
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CONTROL SYSTEM [L3 WITH TC]

Monitor item Unit/ Condition/Specification PCM
Inspection item
(Definition) Condition (Reference) terminal
• The following PIDs:
OL/CL/
Ignition switch to the ON position: — IAT, MAF, TP, MAP, ECT, RPM,
FUELSYS OL-Drive/
OL_Drive O2S11, O2S12, INGEAR, PSP, —
(Fuel system status) OL-Fault/
Idle (after warm up): CL VPWR, ALTT V
CL-Fault
• Fuel injector
GENVDSD 01-40
Idle: Approx. 13.83 V*1(E/L not • Perform applicable DTC
(Generator voltage V —
operating) troubleshooting.
desired)
HTR11 • The following PIDs:
On/Off Idle (after warm up): On⇔Off 2C
(HO2S heater (front)) — IAT, MAF, TP, ECT, RPM
Idle: On
HTR12 • The following PIDs:
On/Off Engine speed is above 4,000 rpm: 2D
(HO2S heater (rear)) — IAT, MAF, ECT, RPM, ACSW
Off
Ignition switch to the ON position
°C °F
IAT position: Indicate the IAT
• MAF/IAT sensor 1M
(Intake air temperature) IAT 20 °C {68 °F}: 2.4— 2.6V
V
IAT 30 °C {86 °F}: 1.7— 1.9V
Engine speed is below Approx.
• The following PIDs:
IMRC (Variable swirl 3,750 rpm and ECT is below 60 °C
On/Off — TP, ECT, RPM 2AS
solenoid valve) {140 °F}: On
• Variable swirl solenoid valve
Others: Off
Driving range: On
INGEAR (Load/no load • Perform applicable DTC
On/Off Except above: Off —
condition) troubleshooting.
Others: On
Idle/ APP closed: Idle • Perform applicable DTC 2AK
IVS (CTP condition)
Off Idle Others: Off Idle troubleshooting. 2AL
Ignition switch to the ON position: 0
KNOCKR (Knocking 2U
° ° • KS
retard) 2V
Idle: 0 °
LDP_EVAPCP (EVAP
system leak detection Indicate the EVAP control system • Perform applicable DTC
A —
pump detect incorrect incorrect purge flow detection value troubleshooting.
purge flow)
LDP_IDL (EVAP
Indicate the EVAP system leak • Perform applicable DTC
system leak detection A —
detection pump idle current troubleshooting.
pump idle current)
LDP_MON (EVAP
system leak detection Indicate the EVAP system leak • Perform applicable DTC
A —
pump monitoring detection pump monitoring current troubleshooting.
current)
LDP_REF (EVAP
system leak detection Indicate the EVAP system leak • Perform applicable DTC
A —
pump reference detection pump reference current troubleshooting.
current)
LDP_SLDV (EVAP
Indicate the EVAP control system • Perform applicable DTC
system small leak A —
small leak detection value troubleshooting.
detection value)
LDP_VSL_FV*1(EVAP Indicate EVAP system very small • Perform applicable DTC
system very small leak mA/sec —
leak detection fail value troubleshooting.
detection fail value)
LDP_VSL_SV*1 (EVAP Indicate EVAP system very small • Perform applicable DTC
system very small leak mA/sec —
leak detection safe value troubleshooting.
detection safe value)
LDP_VSLDV*1 (EVAP Indicate the EVAP control system • Perform applicable DTC
system small leak mA/sec —
vary small leak detection value troubleshooting.
detection value)
Ignition switch to the ON position:
0%
LOAD (Engine load) % Idle (after warm up): 17.1— 18.5% • MAF/IAT sensor —
Engine speed is 2,500 rpm: 14.2—
15.2

01-40–19
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CONTROL SYSTEM [L3 WITH TC]

Monitor item Unit/ Condition/Specification PCM
Inspection item
(Definition) Condition (Reference) terminal
LONGFT1 (long term • Perform applicable DTC
% Idle (after warm up):–14— 14% —
fuel trim) troubleshooting.
Ignition switch to the ON position:
Approx. 0 g/s
g/s Idle (after warm up): 2.72— 2.94 g/s
Engine speed is 2,500 rpm: 8.00—
MAF (Mass airflow) 8.66 • MAF/IAT sensor 1AK
Ignition switch to the ON position:
V Approx. 0.7 V
Idle (after warm up): Approx. 1.3 V
Ignition switch to the ON position:
Pa
Indicate the atmospheric pressure
MAP (Manifold
Ignition switch to the ON position: • MAP sensor 2AG
absolute pressure)
V Approx. 1.9 V
Idle (after warm up): Below 1.0 V
Ignition switch to the ON position:
MIL (Malfunction • Perform applicable DTC
On/Off On —
indicator lamp) troubleshooting.
Idle: Off
MIL_DIS (Traveled
No DTC: 0 km {0 mile} • Perform applicable DTC
distance since the MIL km mile —
DTC detected: Not 0 km {0 mile} troubleshooting.
illuminated)
Idle (after warm up): –1.0— 1.0 A 2Z
O2S11
A Deceleration (after warm up): • HO2S (front) 2AC
(Front oxygen sensor)
0.25 A or more 2AD
O2S12
V Idle: 0— 1 V • HO2S (rear) 2Q
(Rear oxygen sensor)
Steering wheel in straight ahead
PSP (Power steering
High/Low position: Low • PSP switch 2T
pressure switch)
Others: High
RO2FT1 (Rear oxygen • The following PID
— • Idle after warm-up: Approx. 0.2 2Q
sensor fuel trim) — O2S12
No load: 650— 750 rpm
E/L operating: 650— 750 rpm
RPM (Engine speed) RPM • CKP sensor 2W
P/S operating: 650— 750 rpm
A/C ON: 650— 750 rpm
Press ON/OFF: Approx. 0 V
SCCS Press CANCEL: Approx. 1.1 V
(Speed control V Press SET/COAST: Approx. 3.1 V • Cruise control switch 1AQ
command switch) Press RES/ACCEL: Approx. 4.2 V
Others: Approx. 5.0 V
SEGRP • The following PIDs:
Idle: 0 step
(EGR valve (stepping — — MAF, TP, ECT, RPM, VSS —
Cranking: 0— 60 steps
motor) position) • EGR valve
SEGRP DSD
(Desired EGR valve • The following PIDs:
% Idle: 0% —
(stepping motor) — MAF, TP, ECT, RPM, VSS
position)
SELTESTDTC
• Perform applicable DTC
(DTC of KOEO/KOER — — —
troubleshooting.
self-test)
SHRTFT1
Idle (after warm up): Approx.–30— • Perform applicable DTC
(Short term fuel trim % —
25% troubleshooting.
[front HO2S])
SHRTFT12 Idle (after warm up): Approx.–30— • Perform applicable DTC
% —
(Short term fuel trim) 25% troubleshooting.
• The following PIDs:
SPARKADV (Ignition — MAF, TP, ECT, RPM, INGEAR,
°(BTDC) Idle: BTDC Approx. 10° —
timing) PSP, ACSW, VPWR
• Ignition timing
test (Test mode) On/Off — — —
TIRESIZE (Tire Indicate the tire circumference
rev/mile — —
revolution per mile) length

01-40–20
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CONTROL SYSTEM [L3 WITH TC]

Monitor item Unit/ Condition/Specification PCM
Inspection item
(Definition) Condition (Reference) terminal
Ignition switch to the ON position
2AK
TP REL (Relative TP) % APP is released: Approx. 5% • TP sensor
2AL
APP is depressed: Approx. 46 %
Ignition switch to the ON position
% APP is released: Approx. 15%
APP is depressed: Approx. 55 % 01-40
TP1 (TP sensor 1) • TP sensor 2AK
Ignition switch to the ON position
V APP is released: 0.4— 0.6 V
APP is depressed: 4.7— 4.9 V
Ignition switch to the ON position
% APP is released: Approx. 15%
APP is depressed: Approx. 56%
TP2 (TP sensor 2) • TP sensor 2AL
Ignition switch to the ON position
V APP is released: 4.4— 4.6 V
APP is depressed: 0.1— 0.3 V
TPCT
Ignition switch to the ON position: 2AK
(Lowest closed throttle V • TP sensor
Approx 1.0 V 2AL
voltage)
VPWR (Battery
V Indicate the battery voltage • Battery 1BA
positive voltage)
• Perform applicable DTC
VSS (Vehicle speed) KPH MPH Indicate the vehicle speed —
troubleshooting.
• The following PIDs:
VT ACT1 (Actual valve
° Idle: Approx. 0° — TP, ECT, RPM —
timing)
• OCV
VT DIFF1 (Difference
• The following PIDs:
between actual valve
° Idle: Approx. 0° — TP, ECT, RPM 2AF
timing and target valve
• OCV
timing)
• The following PIDs:
VT DUTY1 % Idle: Approx. 11.5% — TP, ECT, RPM 2AF
• OCV
Variable swirl shutter valve switch
ON: On
VTC On/Off • Variable swirl shutter valve switch 2AE
Variable swirl shutter valve switch
OFF: Off
Racing with the accelerator pedal
WGC % fully depressed: 10— 100 % • Wastegate control solenoid valve 2AA
Fully closed: 0 %

*1 : California emission regulation applicable model

End Of Sie
PCM CONFIGURATION[L3 WITH TC]
id014039802600
1. Connect the M-MDS to DLC-2.
2. After the vehicle is identified, select the following
items from the initial screen of the M-MDS.
• When using the IDS (notebook PC)
1. Select the “Module Programming”.
• When using the PDS (pocket PC)
1. Select “Programming”.
2. Select “Module Programming”.
3. Then, select the “Programmable Module
Installation”, “PCM” from the screen menu.
Note DLC-2
• If the PCM is replaced with a new one, the acxuuw00000279
PCM stores DTC P0602, illuminates the MIL
even though no malfunction is detected. When the configuration is completed, DTC P0602 is cleared.

4. Retrieve DTC’s using the M-MDS, then verify that DTC are present.
• If a DTC is present, perform the applicable DTC inspection.
End Of Sie

01-40–21
1871-1U-06B(01-40).fm 22 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

POWER STEERING PRESSURE (PSP) SWITCH INSPECTION[L3 WITH TC]
WM: POWER STEERING PRESSURE SWITCH

id014039803100

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)
Continuity Inspection
1. Inspect the following if the power steering is inoperative (See06-14-3 POWER STEERING FLUID
INSPECTION.):
• Power steering fluid level
• Power steering fluid leakage
• Power steering fluid pressure
2. Disconnect the PSP switch connector.
3. Start the engine.
4. Inspect for continuity between the PSP switch terminal and ground using a tester.
• If not as specified, replace the PSP switch. (See06-14-21 POWER STEERING OIL PUMP REMOVAL/
INSTALLATION.)
• If the PSP switch is normal, but PID value is out of specification, perform the “Circuit Open/Short
Inspection”.
Specification
: Continuity
Condition Terminal GND
Steering wheel in straight
ahead position
While turning steering
wheel
acxuuw00000116

Circuit Open/Short Inspection

PSP SWITCH
WIRING HARNESS SIDE CONNECTOR

acxuuw00000117

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000118
1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following harnesses for an open or short circuit. (Continuity check)
Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— PSP switch terminal and PCM terminal 2T

Short circuit
• If there is no continuity, there is a short circuit. Repair or replace the wiring harness.
— PSP switch terminal and body ground

01-40–22
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CONTROL SYSTEM [L3 WITH TC]

End Of Sie

VARIABLE SWIRL SHUTTER VALVE SWITCH INSPECTION[L3 WITH TC]

WM: SHUTTER VALVE SWITCH

id014039803000

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See00-00-3 HOW TO USE THIS MANUAL.)

Voltage Inspection
1. Turn the ignition switch to the ON position (Engine off). 01-40
2. Verify that the PCM terminal 2AE voltage is as VARIABLE SWIRL SHUTTER VALVE
shown in the following table when the variable ACTUATOR ROD
swirl shutter valve actuator rod is depressed and OPEN POSITION
released by hand. (RELEASED)

CLOSED POSITION
(DEPRESSED)

acxuuw00000113

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000114

• If not as specified, perform the “Circuit Open/Short Inspection”.

— If there is no open or short circuit, replace the intake manifold. (See01-13-5 INTAKE AIR SYSTEM
REMOVAL/INSTALLATION[L3 WITH TC].)

Variable swirl shutter valve switch output voltage

Condition PCM terminal 2AE
Released (Open position) B+
Depressed (Closed position) Below 1.0 V

01-40–23
1871-1U-06B(01-40).fm 24 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection

VARIABLE SWIRL SHUTTER VALVE SWITCH

WIRING HARNESS SIDE CONNECTOR

A B

acxuuw00000115

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000114

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)

2. Inspect the following harnesses for an open or short circuit. (Continuity check)

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Variable swirl shutter valve switch terminal A and PCM terminal 2AE
— Variable swirl shutter valve switch terminal B and body ground.

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Variable swirl shutter valve switch terminal A and power supply
— Variable swirl shutter valve switch terminal A and body ground
— Variable swirl shutter valve switch terminal B and power supply
End Of Sie
ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION[L3 WITH TC]
WM: TEMPERATURE SENSOR

id014039801900

Warning
• A hot engine can cause severe burns. Turn off the engine and wait until it is cool before removing
the ECT sensor.

1. Disconnect the negative battery cable.

2. Remove the charge air cooler duct. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
3. Remove the battery and battery tray. (See 01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the air cleaner and air hose. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
5. Drain the engine coolant. (See01-12-2 COOLING SYSTEM SERVICE WARNINGS[L3 WITH TC].)
6. Disconnect the wiring harness.

01-40–24
1871-1U-06B(01-40).fm 25 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

7. Remove the ECT sensor.
8. Install in the reverse order of removal.

Tightening torque
ECT SENSOR
10— 14 N·m {102— 142 kgf·cm, 89— 123
in·lbf}

9. Refill the engine coolant. (See01-12-2 COOLING 01-40

SYSTEM SERVICE WARNINGS[L3 WITH TC].)
End Of Sie

acxuuw00000091

ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION[L3 WITH TC]

id014039802000

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

ECT Sensor Resistance Inspection

1. Drain the engine coolant. (See01-12-2 COOLING SYSTEM SERVICE WARNINGS[L3 WITH TC].)
2. Remove the ECT sensor (located above the starter).
3. Place the ECT sensor in water with a thermometer, and heat the water gradually.
4. Measure the resistance between the ECT sensor terminals A and B using a tester.
• If not as specified, replace the ECT sensor.
• If the ECT sensor is normal, but PID value is out of specification, perform the “Circuit Open/Short
Inspection”.
Specification
Water temperature (°C {°F}) Resistance (kilohm)
20 {68} 35.48— 39.20
80 {176} 3.65— 4.02

Circuit Open/Short Inspection

ECT SENSOR
WIRING HARNESS SIDE CONNECTOR

B A

acxuuw00000092

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000093

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)

2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

01-40–25
1871-1U-06B(01-40).fm 26 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— ECT sensor terminal A and PCM terminal 2AH
— ECT sensor terminal B and PCM terminal 2AY

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— ECT sensor terminal A and power supply
— ECT sensor terminal A and body ground
— ECT sensor terminal B and power supply
End Of Sie
MASS AIR FLOW (MAF) SENSOR INSPECTION[L3 WITH TC]
WM: MASS AIR FLOW SENSOR

id014039800700
Visual Inspection

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

1. Visually inspect for the following on the MAF sensor. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/
INSTALLATION[L3 WITH TC].)
• Damage
• Cracks
• Bent terminals
• Terminal rust
— If any of the above are found, replace the MAF/IAT sensor.
— If the monitor item status/specification (reference) is not within the specification even though there is no
malfunction, perform the "Circuit Open/Short Inspection".

Voltage Inspection
1. Remove the MAF/IAT sensor without disconnect the MAF/IAT sensor connector.
2. Turn the ignition switch to the ON position.
3. As the air gradually approaches the MAF detection part of the MAF/IAT sensor, verify that the voltage at PCM
terminal 1AK (M-MDS PID: MAF) varies.
• If it cannot be verified even though the related harnesses have no malfunction, replace the MAF/IAT sensor.

Circuit Open/Short Inspection

MAF/IAT SENSOR
WIRING HARNESS SIDE CONNECTOR

E D C B A

acxuuw00000076

FUSE BOX
(MAIN RELAY)

B
FRONT
A E
D

acxuuw00000538

01-40–26
1871-1U-06B(01-40).fm 27 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D
01-40

acxuuw00000078

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)

2. Disconnect the MAF/IAT sensor connector.
3. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— MAF/IAT sensor terminal A and main relay terminal E
— MAF/IAT sensor terminal B and PCM terminal 1P
— MAF/IAT sensor terminal C and PCM terminal 1AK

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— MAF/IAT sensor terminal A and body ground
— MAF/IAT sensor terminal B and power supply
— MAF/IAT sensor terminal C and power supply
— MAF/IAT sensor terminal C and body ground
End Of Sie
INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION[L3 WITH TC]
WM: INTAKE AIR TEMPERATURE SENSOR

id014039802200
Resistance Inspection

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

1. Disconnect the MAF/IAT sensor.

2. Measure the resistance between the MAF/IAT
sensor terminals D and E using a tester.
• If not as specified, replace the MAF/IAT
sensor. (See01-13-5 INTAKE AIR SYSTEM
REMOVAL/INSTALLATION[L3 WITH TC].) E D C B A
• If the MAF/IAT sensor is normal, but the PID
is out of specification, perform the “Circuit
Open/Short Inspection”.
Specification
Ambient temperature (°C {°F}) Resistance (kilohm)
20 {68} 2.21— 2.69
60 {140} 0.493— 0.667 acxuuw00000096

01-40–27
1871-1U-06B(01-40).fm 28 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection

MAF/IAT SENSOR
WIRING HARNESS SIDE CONNECTOR

E D C B A

acxuuw00000097

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000098

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)

2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— MAF/IAT sensor terminal D and PCM terminal 1M
— MAF/IAT sensor terminal E and PCM terminal 1AR

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— MAF/IAT sensor terminal E and power supply
— MAF/IAT sensor terminal D and power supply
— MAF/IAT sensor terminal D and body ground
End Of Sie
WM: MANIFOLD ABSOLUTE PRESSURE SENSOR

01-40–28
1871-1U-06B(01-40).fm 29 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/BOOST AIR TEMPERATURE SENSOR REMOVAL/
INSTALLATION[L3 WITH TC]
id014039801000
1. Disconnect the negative battery cable.
2. Remove the charge air cooler duct. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
3. Remove the oil level gauge pipe. (See01-11-6 OIL PAN REMOVAL/INSTALLATION[L3 WITH TC].)
4. Disconnect the MAP/boost air temperature sensor connector.
5. Remove MAP/boost air temperature sensor from 01-40
the intake manifold.
6. Install in the reverse order of removal.

Tightening torque
5.0— 7.0 N·m {51— 71 kgf·cm, 45— 61 in·lbf}

End Of Sie

MAP/BOOST AIR
TEMPERATURE
SENSOR

acxuuw00000082

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION[L3 WITH TC]

id014039800900

Note
• Perform the following inspection only when directed.
• The following vacuum values are indicated by relative pressure from the MAP sensor.

1. Connect the M-MDS to the DLC-2.

2. Turn the ignition switch to ON (Engine off).
3. Select MAP PID on the M-MDS.
4. Verify that the MAP PID (pressure) and
barometric pressure are practically equal.
• If not as verified, perform the “Circuit Open/
Short Inspection”.
— If there is no open or short circuit, replace
the MAP sensor.
• If as verified, go to next step.
5. Apply vacuum of –25.0 kPa {–187 mmHg, –7.38
DLC-2
inHg} to the MAP sensor, and verify that the MAP
acxuuw00000079
variation from that of Step 4 is approx. 25.0 kPa
{187 mmHg, 7.38 inHg}.
• If not as verified, perform the “Circuit Open/Short inspection”.
— If there is no open or short circuit, replace the barometric pressure sensor. (See01-13-5 INTAKE AIR
SYSTEM REMOVAL/INSTALLATION[L3 WITH TC].)

01-40–29
1871-1U-06B(01-40).fm 30 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection

MAP/BOOST AIR
TEMPERATURE SENSOR
WIRING HARNESS SIDE CONNECTOR

D C B A

acxuuw00000080

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000081

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)

2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— MAP/boost air temperature sensor terminal A and PCM terminal 2AV
— MAP/boost air temperature sensor terminal C and PCM terminal 2AU
— MAP/boost air temperature sensor terminal D and PCM terminal 2AG

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— MAP/boost air temperature sensor terminal A and power supply.
— MAP/boost air temperature sensor terminal C and body ground.
— MAP/boost air temperature sensor terminal D and power supply.
— MAP/boost air temperature sensor terminal D and body ground
End Of Sie
WM: INTAKE AIR TEMPERATURE SENSOR

01-40–30
1871-1U-06B(01-40).fm 31 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

BOOST AIR TEMPERATURE SENSOR INSPECTION[L3 WITH TC]
id014039802100
Resistance Inspection

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

1. Disconnect MAP/boost air temperature sensor. 01-40

2. Measure the resistance between the MAP/boost
air temperature sensor terminals A and B using a
tester.
• If not as specified, replace the MAP/boost air
temperature sensor. (See01-13-5 INTAKE D C B A
AIR SYSTEM REMOVAL/INSTALLATION[L3
WITH TC].)
• If the MAP/boost air temperature sensor is
normal, but PID are out of specification,
perform the “Circuit Open/Short Inspection”.
Specification
Ambient temperature (°C {°F}) Resistance (kilohm)
acxuuw00000094
20 {68} 2.4— 2.7
60 {140} 0.59— 0.64

Circuit Open/Short Inspection

D C B A

acxuuw00000094

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000095
1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— MAP/boost air temperature sensor terminal A and PCM terminal 2AV
— MAP/boost air temperature sensor terminal B and PCM terminal 2N
— MAP/boost air temperature sensor terminal C and PCM terminal 2AU
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— MAP/boost air temperature sensor terminal A and power supply
— MAP/boost air temperature sensor terminal B and power supply
— MAP/boost air temperature sensor terminal B and body ground
— MAP/boost air temperature sensor terminal C and body ground
01-40–31
1871-1U-06B(01-40).fm 32 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

End Of Sie

THROTTLE POSITION (TP) SENSOR INSPECTION[L3 WITH TC]

WM: THROTTLE POSITION SENSOR

id014039802700

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

Voltage Inspection
1. Verify that no DTC related to the APP sensor has been detected.
• If any DTCs related to the APP sensor have been detected, perform the DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
2. Start the engine and warm it up (ECT: more than 80°C {176 °F}).
3. Turn the ignition switch to the ON position (Engine off).
4. Verify that the PCM terminal 2AK and 2AL change smoothly while the throttle valve is gradually opened.
• If as verified, go to next step.
• If not as verified, perform the “Circuit Open/Short Inspection”.
— If there is no open or short circuit, replace the throttle body.
5. Verify that the PCM terminal 2AK and 2AL voltages are as shown in the following table.
PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000108

• If the voltage is not according to the following table, perform the “Circuit Open/Short Inspection”.
— If there is no open or short circuit, replace the throttle body.
TP sensor output voltage TP SENSOR CHARACTERISTICS (REFERENCE)
PCM terminal PCM terminal
Condition 2AK 2AL
(TP sensor No.1) (TP sensor No.2)
HIGH TP SENSOR No.1
APP is released 0.4— 0.6 V 4.4— 4.6 V
APP is depressed 4.7— 4.9 V 0.1— 0.3 V

OUTPUT TP SENSOR No.2

VOLTAGE

LOW

THROTTLE
SMALL LARGE
OPENING ANGLE
acxuuw00000109

01-40–32
1871-1U-06B(01-40).fm 33 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection

TP SENSOR
WIRING HARNESS SIDE CONNECTOR

F E D C B A
01-40

acxuuw00000110

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000108

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)

2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Throttle body terminal A and PCM terminal 2AK
— Throttle body terminal B and PCM terminal 2AO
— Throttle body terminal C and PCM terminal 2AL
— Throttle body terminal D and PCM terminal 2AP

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Throttle body terminal A and power supply
— Throttle body terminal A and body ground
— Throttle body terminal B and body ground
— Throttle body terminal C and power supply
— Throttle body terminal C and body ground
— Throttle body terminal D and power supply
End Of Sie
ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION[L3 WITH TC]
WM: ACCELERATOR PEDAL POSITION SENSOR

id014039803200

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

Voltage Inspection
1. Turn the ignition switch to the ON position (Engine off).
2. Verify that the PCM terminal 1Y and 1AC change smoothly while throttle valve is gradually opened.
• If as verified, go to next step.
• If not as verified, perform the “Circuit Open/Short Inspection”.
— If there is no open or short circuit, replace the throttle body. (See01-13-5 INTAKE AIR SYSTEM
REMOVAL/INSTALLATION[L3 WITH TC].)

01-40–33
1871-1U-06B(01-40).fm 34 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

3. Verify that the PCM terminal 1Y and 1AC voltages are as shown in the following table.
PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000119
• If the voltage is not according to the following table, perform the “Circuit Open/Short Inspection”.
— If there is no open or short circuit, replace accelerator pedal. (See01-13-17 ACCELERATOR PEDAL
REMOVAL/INSTALLATION[L3 WITH TC].)

APP sensor output voltage THE CHARACTERISTICS OF

TP SENSOR (REFERENCE)
PCM terminal
PCM terminal 1Y
1AC
Condition (APP sensor
(APP sensor HIGH APP SENSOR No.1
No.1)
No.2)
APP is depressed 3.65— 3.93 V 3.10— 3.38
APP is released 1.56— 1.65V 1.01— 1.10
OUTPUT
VOLTAGE APP SENSOR No.2

LOW

THROTTLE
SMALL LARGE
OPENING ANGLE
acxuuw00000120

Circuit Open/Short Inspection

APP SENSOR
WIRING HARNESS SIDE CONNECTOR

F E D C B A

acxuuw00001926

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000119

01-40–34
1871-1U-06B(01-40).fm 35 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— APP sensor terminal A and PCM terminal 1AJ
— APP sensor terminal B and PCM terminal 1AV
— APP sensor terminal C and PCM terminal 1AC 01-40
— APP sensor terminal D and PCM terminal 1Q
— APP sensor terminal E and PCM terminal 1U
— APP sensor terminal F and PCM terminal 1Y

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— APP sensor terminal A and body ground
— APP sensor terminal B and power supply
— APP sensor terminal C and power supply
— APP sensor terminal C and body ground
— APP sensor terminal D and body ground
— APP sensor terminal E and power supply
— APP sensor terminal F and power supply
— APP sensor terminal F and body ground
End Of Sie
FUEL PRESSURE SENSOR REMOVAL/INSTALLATION[L3 WITH TC]
WM: FUEL PRESSURE SENSOR

id014039801200

Note
• If the fuel pressure sensor is removed, do not reuse the fuel pressure sensor and the fuel delivery pipe.
When you replace the fuel pressure sensor, replace a new fuel delivery pipe with a new fuel pressure
sensor. (See 01-14-23 FUEL INJECTOR REMOVAL/INSTALLATION[L3 WITH TC])

End Of Sie
FUEL PRESSURE SENSOR INSPECTION[L3 WITH TC]
id014039801300

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

1. Connect the M-MDS to the DLC-2.

2. Turn the ignition switch to the ON position (Engine
off).
3. Select the FUEL_PRES PID on the M-MDS.
4. After warming up the engine, verify that the
FUEL_PRES PID is at the standard value under
the following conditions.
— If not as verified, replace the fuel delivery
pipe.
Step Condition FUEL_PRES PID
1 • Idle Approx. 3 MPa DLC-2
• 90 s after engine is acxuuw00000084
started
2 • Idle Approx. 530 kPa
• Spill valve solenoid
valve connector is
disconnected

5. After connecting the spill valve control solenoid valve connector, clear the DTC.

01-40–35
1871-1U-06B(01-40).fm 36 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection

FUEL PRESSURE SENSOR

WIRING HARNESS SIDE CONNECTOR

C B A

acxuuw00000085

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000086

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)

2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Fuel pressure sensor terminal A and PCM terminal 2P
— Fuel pressure sensor terminal B and PCM terminal 2R
— Fuel pressure sensor terminal C and PCM terminal 2I

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Fuel pressure sensor terminal A and power supply.
— Fuel pressure sensor terminal B and power supply.
— Fuel pressure sensor terminal B and body ground.
— Fuel pressure sensor terminal C and body ground
End Of Sie
WM: HEATED OXYGEN SENSOR

01-40–36
1871-1U-06B(01-40).fm 37 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION[L3 WITH TC]
id014039804000

Warning
• A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they
are cool before removing the exhaust system.

1. Disconnect the negative battery cable.

2. Remove the charge air cooler duct. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH 01-40
TC].)
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.

1 Connector SST
2 29—49
Front HO2S {3.0—4.9, 22—36}
2
(See01-40-37 HO2S Removal Note.)
3 Rear HO2S 1
(See01-40-37 HO2S Removal Note.) SST
3 29—49
{3.0—4.9, 22—36}

N·m {kgf·m, ft·lbf}

acxuuw00000259

HO2S Removal Note

1. Remove the HO2S using the SST.
End Of Sie 49 L018 001

ampjjw00001053

HEATED OXYGEN SENSOR (HO2S) INSPECTION[L3 WITH TC]

id014039802300

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

Front HO2S Current Inspection

1. Warm up the engine to normal operating temperature.
2. Using the M-MDS, monitor the following:
— Vehicle speed (PID: VSS)
— Engine speed (PID: RPM)
— Front HO2S current (PID: O2S11)
3. Drive the vehicle and decelerate the engine speed by releasing the accelerator pedal fully when the engine
speed is 3,000 rpm or more.

01-40–37
1871-1U-06B(01-40).fm 38 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

4. Verify that the front HO2S current (PID: O2S11) is 0.25 mA or more while decelerating as shown in the figure.

VSS

0 KPH

3,000 RPM

2,000 RPM
RPM
1,000 RPM

0 RPM

0.25 mA

0.25 mA OR MORE
O2S11

0 mA

acxuuw00000099

• If not within the specification, inspect the HO2S for an open or short circuit. (See01-40-38 Front HO2S
Circuit Open/Short Inspection (Sensor).) Then if there is no malfunction in the wiring harness, replace the
front HO2S.

Front HO2S Heater Resistance Inspection

1. Disconnect the front HO2S connector.
2. Measure the resistance between front HO2S
terminals 2B and 2D.
• If not within the specification, replace the front
HO2S. (See01-40-37 HEATED OXYGEN 1C 1A 2C 2A
SENSOR (HO2S) REMOVAL/ 2D 2B
1D 1B
INSTALLATION[L3 WITH TC].)

Front HO2S heater resistance

1— 10 ohms

acxuuw00000100

Front HO2S Circuit Open/Short Inspection (Sensor)

1. Disconnect the PCM connector.
2. Disconnect the front HO2S connector.
3. Inspect the following wiring harnesses for an
open or short circuit. (Continuity inspection) FRONT HO2S
WIRING HARNESS SIDE CONNECTOR

1C 1A 2C 2A
1D 1B 2D 2B

acxuuw00000101

01-40–38
1871-1U-06B(01-40).fm 39 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

FUSE BOX
(MAIN RELAY)

B
FRONT
A E
D
01-40

acxuuw00000538

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000103

Open circuit
• If there is no continuity in the following wiring harnesses, there is an open circuit. Repair or replace the wiring
harness.
— Front HO2S terminal 1A and PCM terminal 2AD
— Front HO2S terminal 1B and PCM terminal 2AC
— Front HO2S terminal 1C and PCM terminal 2Z
— Front HO2S terminal 2A and PCM terminal 2M
— Front HO2S terminal 2B and main relay terminal E
— Front HO2S terminal 2C and PCM terminal 2Y
— Front HO2S terminal 2D and PCM terminal 2C
Short circuit
• If there is continuity in the following wiring harnesses, there is a short circuit. Repair or replace the wiring
harness.
— Front HO2S terminal 1A and body ground
— Front HO2S terminal 1A and power supply
— Front HO2S terminal 1B and body ground
— Front HO2S terminal 1B and power supply
— Front HO2S terminal 1C and body ground
— Front HO2S terminal 1C and power supply
— Front HO2S terminal 2A and power supply
— Front HO2S terminal 2B and body ground
— Front HO2S terminal 2C and body ground
— Front HO2S terminal 2C and power supply
— Front HO2S terminal 2D and body ground
— Front HO2S terminal 2D and power supply

Rear HO2S Voltage Inspection

1. Warm up the engine to normal operating temperature.
2. Using the M-MDS, monitor the following:
— Vehicle speed (PID: VSS)
— Engine speed (PID: RPM)
— Rear HO2S voltage (PID: O2S12)
3. Drive the vehicle and decelerate the engine speed by releasing the accelerator pedal fully when the engine
speed is 3,000 rpm or more.

01-40–39
1871-1U-06B(01-40).fm 40 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

4. Verify that the rear HO2S outputs a voltage of 0.6 V or more, one time or more, then verify that the rear HO2S
voltage (PID: O2S12) is 0.3 V or less while decelerating as shown in the figure.

VSS

0 KPH

3,000 RPM

RPM 2,000 RPM

1,000 RPM

0 RPM

1V

O2S12 0.5V
0.3V OR LESS

0V
acxuuw00000104

• If not within the specification, inspect the HO2S for an open or short circuit. (See01-40-40 Rear HO2S
Circuit Open/Short Inspection (Sensor).) Then if there is no malfunction in the wiring harness, replace the
rear HO2S.

Rear HO2S Circuit Open/Short Inspection (Sensor)

REAR HO2S
WIRING HARNESS SIDE CONNECTOR

A C

B D

acxuuw00000105

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000103

1. Disconnect the PCM connector.

2. Disconnect the rear HO2S connector.
3. Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)

01-40–40
1871-1U-06B(01-40).fm 41 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Rear HO2S terminal A and PCM terminal 2Q
— Rear HO2S terminal B and PCM terminal 1BC
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Rear HO2S terminal A and body ground
— Rear HO2S terminal A and power supply 01-40
— Rear HO2S terminal B and power supply

Rear HO2S Heater Resistance Inspection

1. Disconnect the rear HO2S connector.
2. Measure the rear HO2S resistance between
REAR HO2S
terminals C and D.
• If not within the specification, replace the
HO2S.
A C
Rear HO2S heater resistance
2— 50 ohms B D

acxuuw00000106

Rear HO2S Circuit Open/Short Inspection (Heater)

REAR HO2S
WIRING HARNESS SIDE CONNECTOR

A C

B D

acxuuw00000107

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000103
1. Disconnect the PCM connector.
2. Disconnect the rear HO2S connector.
3. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Rear HO2S terminal C and ignition switch
— Rear HO2S terminal D and PCM terminal 2D
Short circuit
• If there is no continuity, there is a short circuit. Repair or replace the wiring harness.
Rear
— Rear HO2S terminal A and body ground
— Rear HO2S terminal B and power supply
— Rear HO2S terminal B and body ground
01-40–41
1871-1U-06B(01-40).fm 42 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

End Of Sie

CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION[L3 WITH TC]

WM: CRANKSHAFT POSITION PLATE

id014039800600
Removal
1. Disconnect the negative battery cable.
2. Remove the charge air cooler duct. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
3. Remove the under cover.
4. Remove the splash shield (RH).
5. Disconnect the CKP sensor connector.
6. Remove the installation bolts to remove the CKP sensor.

Installation

Caution
• When foreign material, such as an iron chips, gets on the CKP sensor, it can cause abnormal
output from the sensor because of flux turbulence and adversely affect engine control. Be sure
there is no foreign material on the CKP sensor when replacing.

1. Perform the following procedure so that piston No.1 is at the top dead center.
(1) Rotate the crankshaft in the direction of the
engine rotation and remove the cylinder block
lower blind plug when the No. 1 cylinder is at
the point prior to top dead center (TDC) of
compression, then install the SST.
(2) Rotate the crankshaft in the direction of the
engine rotation so that the No.1 piston is at
TDC of the compression stroke. (Until the
crank weight contacts SST and stops.)
303-507

acxuuw00001899

2. Using a straight edge, draw a straight line directly EMPTY SPACE

in the center of the twentieth tooth of the
crankshaft pulley pulse wheel (counting
counterclockwise from the empty space). MARK LINE AT CENTER
OF 20TH TOOTH

Caution
• If the line is not accurately drawn, CENTER LINE
ignition timing, fuel injection and other OF SENSOR
engine control systems will be adversely
effected. Draw the straight line carefully
using a straight edge.

3. Align the center line of the crankshaft position

sensor and the line drawn in Step 2, then install
the sensor.
4. Install the CKP sensor fitting bolts.
CKP SENSOR
Tightening torque acxuuw00000075
5.5— 7.5 N·m {57— 76 kgf·cm, 49— 66 in·lbf}

5. Remove the SST then install the cylinder block lower blind plug.

Tightening torque
18— 22 N·m {1.9— 2.2 kgf·m, 14— 16 ft·lbf}

End Of Sie

01-40–42
1871-1U-06B(01-40).fm 43 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

CRANKSHAFT POSITION (CKP) SENSOR INSPECTION[L3 WITH TC]
id014039800500

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

Air Gap Inspection

1. Verify that the CKP sensor is securely installed. 01-40
2. Using a thickness gauge, measure the air gap
between the plate projections at the back of
crankshaft pulley and the CKP sensor.
• If not within the specification, inspect the plate
projections for cracks or bending. PROJECTION
— If there is any malfunction, replace the
plate. AIR GAP
— If the monitor item condition/specification
(reference) is not within the specification,
even though there is no malfunction, carry
out the “Circuit Open/Short Inspection”.

Air gap
0.5— 1.5 mm {0.02— 0.05 in}

CKP SENSOR

acxuuw00000070

Visual Inspection
1. Disconnect the negative battery cable.
2. Remove the CKP sensor. (See01-40-42 CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
3. Verify that there are no metal shavings on the sensor.
• If the monitor item condition/specification (reference) is without the specification even though there is no
malfunction, carry out the “Circuit Open/Short Inspection”.

Voltage Inspection
1. Idle the engine.

Caution
• Water penetrating the connector will cause sensor malfunction. To prevent this, be careful not to
damage the wiring harnesses or the waterproof connector so as to cause water penetration.

2. Measure the output voltage using an

oscilloscope.
• If not within the specification, replace the CKP CKP SENSOR
sensor. WIRING HARNESS SIDE CONNECTOR
• If the monitor item condition/specification
(reference) is without the specification, even C B A
though the voltage is within the specification,
carry out the “Circuit Open/Short Inspection”.

Voltage
Terminal Voltage (V) Condition
A Below 1.0 Under any condition acxuuw00000071
4.8 or more High output*
B
0.8 or less Low output*
C B+ Under any condition
*
: Output voltage varies with crankshaft rotation.

01-40–43
1871-1U-06B(01-40).fm 44 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection

CKP SENSOR
WIRING HARNESS SIDE CONNECTOR

C B A

acxuuw00000071

FUSE BOX
(MAIN RELAY)

B
FRONT
A E
D

acxuuw00000538

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000073

1. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit
• If there is no continuity, the circuit is open. Repair or replace the wiring harness.
— CKP sensor terminal A and PCM terminal 2P
— CKP sensor terminal B and PCM terminal 2W
— CKP sensor terminal C and main relay terminal E

Short circuit
• If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
— CKP sensor terminal A and power supply
— CKP sensor terminal B and power supply
— CKP sensor terminal B and body ground
— CKP sensor terminal C and body ground
End Of Sie
WM: CAMSHAFT POSITION SENSOR

01-40–44
1871-1U-06B(01-40).fm 45 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION[L3 WITH TC]
id014039801500

Caution
• When replacing the CMP sensor, make sure there is no foreign material on it such as metal
shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting
from fluctuation in magnetic flux and cause a deterioration in engine control.

1. Disconnect the negative battery cable. 01-40

2. Remove the charge air cooler duct. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
3. Remove the charge air cooler cover. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
4. Disconnect the CMP sensor connector.
5. Remove the CMP sensor installation bolt.
6. Remove the CMP sensor from the cylinder head
cover.
7. Install in the reverse order of removal.

Tightening torque
5.5— 7.5 N·m {57— 76 kgf·cm, 49— 66 in·lbf}
CMP SENSOR

End Of Sie

acxuuw00000090

CAMSHAFT POSITION (CMP) SENSOR INSPECTION[L3 WITH TC]

id014039801400

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

Visual Inspection
1. Disconnect the negative battery cable.
2. Remove the CMP sensor. (See01-40-45 CAMSHAFT POSITION (CMP) SENSOR REMOVAL/
INSTALLATION[L3 WITH TC].)
3. Verify that there are no metal shavings on the sensor.
• If the monitor item condition/specification (reference) is not within the specification even though there is no
malfunction, carry out the “Circuit Open/Short Inspection”.

Voltage Inspection
1. Idle the engine.

Caution
• Water penetrating the connector will cause sensor malfunction. To prevent this, be careful not to
damage the wiring harnesses or the waterproof connector so as to cause water penetration.

01-40–45
1871-1U-06B(01-40).fm 46 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

2. Measure the output voltage using an
oscilloscope. CMP SENSOR
• If not within the specification, replace the WIRING HARNESS SIDE CONNECTOR
CMP sensor.
• If the monitor item condition/specification
(reference) is not within the specification,
C B A
even though the voltage is within the
specification, carry out the “Circuit Open/
Short Inspection”.

Voltage
Terminal Voltage (V) Condition
acxuuw00000087
A B+ Under any condition
B Below 1.0 Under any condition
4.8 or more High output*
C
0.8 or less Low output*
* : Output voltage varies with camshaft rotation.

Circuit Open/Short Inspection

CMP SENSOR
WIRING HARNESS SIDE CONNECTOR

C B A

acxuuw00000087

FUSE BOX
(MAIN RELAY)

B
FRONT
A E
D

acxuuw00000538

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000089

1. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

01-40–46
1871-1U-06B(01-40).fm 47 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Open circuit
• If there is no continuity, the circuit is open. Repair or replace the wiring harness.
— CMP sensor terminal A and main relay terminal E
— CMP sensor terminal B and PCM terminal 2P
— CMP sensor terminal C and PCM terminal 2S

Short circuit
• If there is continuity, the circuit is shorted. Repair or replace the wiring harness. 01-40
— CMP sensor terminal A and body ground
— CMP sensor terminal B and power supply
— CMP sensor terminal C and body ground
— CMP sensor terminal C and power supply
End Of Sie
KNOCK SENSOR (KS) REMOVAL/INSTALLATION[L3 WITH TC]
WM: KNOCK SENSOR

id014039802900

Caution
• Be careful not to impact the sensor.
• Verify that there is no debris between the sensor and the cylinder block before installing.

1. Disconnect the negative battery cable.

2. Remove the intake manifold. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH TC])
3. Remove the KS attachment bolt to remove the
KS.
4. Install in the reverse order of removal.

Tightening torque
16— 24 N·m {1.7— 2.4 kgf·m, 12— 17 ft·lbf}

End Of Sie
KS

VIEW A

acxuuw00001859

KNOCK SENSOR (KS) INSPECTION[L3 WITH TC]

id014039802800

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)

Resistance Inspection
1. Turn the ignition switch to the LOCK position.
2. Disconnect the KS connector.
3. Measure the resistance between KS terminals A and B using a tester.
• If not as specified, replace the KS. (See01-40-47 KNOCK SENSOR (KS) REMOVAL/INSTALLATION[L3
WITH TC].)
• If the KS is normal, but the PID value is out of specification, perform the “Circuit Open/Short Inspection”.

Specification
Approx. 4.87 megohms

01-40–47
1871-1U-06B(01-40).fm 48 ページ ２００６年３月１５日 水曜日 午前１０時５３分

CONTROL SYSTEM [L3 WITH TC]

Circuit Open/Short Inspection

KS
WIRING HARNESS SIDE CONNECTOR

A B

acxuuw00000111

PCM
WIRING HARNESS-SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M 2I 2E 2A 1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M 1I 1E 1A
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N 2J 2F 2B 1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N 1J 1F 1B

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O 2K 2G 2C 1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O 1K 1G 1C
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P 2L 2H 2D 1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X 1T 1P 1L 1H 1D

acxuuw00000112

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)

2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— KS terminal A and PCM terminal 2U
— KS terminal B and PCM terminal 2V

Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— KS terminal A and power supply
— KS terminal A and body ground
— KS terminal B and power supply
— KS terminal B and body ground
End Of Sie
BAROMETRIC PRESSURE (BARO) SENSOR INSPECTION[L3 WITH TC]
WM: FUEL PRESSURE SENSOR

id014039801100

Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See00-00-3 HOW TO USE THIS MANUAL.)

1. Connect the M-MDS to the DLC-2.

2. Turn the ignition switch to the ON position.
3. Select BARO on the M-MDS.
4. Verify that the BARO PID (pressure) and
barometric pressure are practically equal.
• If not as verified, replace the PCM. (See01-
40-6 PCM REMOVAL/INSTALLATION[L3
WITH TC].)
End Of Sie

DLC-2
acxuuw00000083

01-40–48
1871-1U-06B(01-50).fm 1 ページ ２００６年３月１５日 水曜日 午前１０時５５分

TECHNICAL DATA [L3 WITH TC]

01-50 TECHNICAL DATA [L3 WITH TC]
ENGINE TECHNICAL DATA
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-50–1

End of Toc
ENGINE TECHNICAL DATA[L3 WITH TC]
WM: ENGINE

id015039800100 01-50
Item Specification
IN: 0.22—0.28 mm {0.0087—0.011 in}
Standard valve clearance [Engine cold]
EX: 0.27—0.33 mm {0.011—0.012 in}
Standard:1,280 kPa {13.1 kgf/cm2, 185.65 psi}[250rpm]
Compression Minimum:896 kPa {9.14 kgf/cm2, 129.96 psi}[250rpm]
Maximum difference between cylinders:196.1 kPa {2.0 kgf/cm2, 28.5
psi}
Standard
144.7—145.3 mm {5.697—5.720 in}
Cylinder head bolt length
Maximum:
146 mm {5.74 in}
Front oil seal press-in amount 0—0.5 mm {0—0.019 in}
OCV resistance 6.9—7.9 ohms [20°C {68°F}]
Ignition timing Approx. BTDC 10°
No load: 650—750 rpm
Idle speed (P, N position) Electrical load on*1: 650—750 rpm
P/S operation: 650—750 rpm
A/C operation: 650—750 rpm
No load: 575—675 rpm
Idle speed (D position) Electrical load on*1: 600—700 rpm
P/S operation: 650—750 rpm
A/C operation: 650—750 rpm
HC concentration: Within the regulation
Idle mixture
CO concentration: Within the regulation
Oil pressure (reference value) [oil temperature: 100 °C
{212 °F}] 297—551 kPa {3.03—5.61 kgf/cm2, 43.1—79.9 psi} [3,000 rpm]
Oil replacement: 5.3 L {5.6 US qt, 4.7 Imp qt}
Engine oil capacity (approx. quantity) Oil and oil filter replacement: 5.7 L {6.0 US qt, 5.0 Imp qt}
Total (dry engine): 6.4 L {6.8 US qt, 5.6 Imp qt}
Engine coolant capacity (approx. quantity) 9.0 L {9.5 US qt, 7.9 Imp qt}
Cooling fan motor No.1, No.2 standard current 17.5—22.5 A
Cooling system cap valve opening pressure 112.8—142.2 kPa {1.15—1.45 kgf/cm2, 16.4—20.6 psi}
Thermostat initial-opening temperature 80—84 °C {176—183 °F}
Thermostat full-open temperature 97 °C {207 °F}
Thermostat full-open lift More than 8.0 mm {0.31 in}
Fuel line pressure 410—490 kPa {4.2—4.9 kgf/cm2, 60—71 psi}
Fuel pump hold pressure More than 230 kPa {2.3 kgf/cm2, 33 psi}
Fuel injector resistance 1.0—1.2 ohms [20 °C {68 °F}]
Battery electrolyte specific gravity [20 °C {68 °F}] 1.22—1.29
55D23L (48): 180 A
Battery load test current
80D26L (55): 195 A
Vehicles with immobilizer system: 55—65 mA
Battery back-up current
Vehicles without immobilizer system: 60 mA or less
55D23L (48): 4.5—5.5 A
Battery slow charge current
80D26L (55): 5.5—6.5 A
55D23L (48): 30 A
Battery quick charge current [30 min]
80D26L (55): 35 A
Terminal B: B+
Generator standard voltage [IG-ON] Terminal P: Approx. 1 V or less
Terminal D: Approx. 0 V

01-50–1
1871-1U-06B(01-50).fm 2 ページ ２００６年３月１５日 水曜日 午前１０時５５分

TECHNICAL DATA [L3 WITH TC]

Item Specification
Terminal B: 13—15 V
Terminal P: Approx. 3—8 V
Generator standard voltage [Idle, 20 °C {68 °F}]
Terminal D: Turn the electrical loads (headlights, blower motor, rear
window defroster) on and verify that the voltage reading increases.
70 % of the nominal output current (nominal output current: 110 A)
Generator generated current minimum value [Ambient temp. 20 °C {68 °F}, voltage 13.0—15.0 V, both engine and
generator are hot]
Generator rotor resistance (between slip rings) [20 °C
1.8—2.2 ohm
{68 °F}]
Standard: 22.5 mm {0.89 in}
Generator brush length
Minimum: 5.0 mm {0.20 in}
Standard: 4.1—5.3 N {0.42—0.54 kgf, 0.92—1.19 lbf}
Generator brush spring force
Minimum: 1.7 N {0.17 kgf, 0.38 lbf}
1— 3— 4— 2 (all cylinders independent firing)

CYLINDER No.
CRANKSHAFT
ENGINE
PULLEY

Firing order 1

Spark plug type L3K9 18 110A, L3Y3 18 110

Spark plug gap 0.7—0.8 mm {0.028—0.031 in}
Spark plug resistance [25°C {77 °F}] 3.0—7.5 kilohms
Starter no-load test voltage 11 V
Starter no-load test current 90 A or less
Starter pinion gap 0.5—2.0 mm {0.02—0.07 in}
Starter armature runout 0.05 mm {0.002 in} max.
Standard: 29.4 mm {1.16 in}
Starter commutator diameter
Minimum: 28.8 mm {1.13 in}
Standard: 0.4—0.6 mm {0.016—0.023 in}
Segment groove depth of starter commutator
Minimum: 0.2 mm {0.008 in}
Standard: 12.3 mm {0.48 in}
Starter brush length
Minimum: 7.0 mm {0.28 in}
Standard: 18.3—24.9 N {1.87—2.53 kgf, 4.12—5.59 lbf}
Starter brush spring force
Minimum: 5.9 N {0.6 kgf, 1.3 lbf}

*1 : When the following electrical loads are on: Headlights, rear defroster, cooling fan No.1, cooling fan No.2, and
the blower motor (2-step or more.)

Engine oil specification

Item U.S.A. and CANADA Except U.S.A. and CANADA

Engine oil grade

(ILSAC) (ILSAC)

API SL or ILSAC
Engine oil viscosity 5W-30
End Of Sie

01-50–2
 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SERVICE TOOLS [L3 WITH TC]
01-60 SERVICE TOOLS [L3 WITH TC]
ENGINE SST[L3 WITH TC]. . . . . . . . . . . 01-60–1

End of Toc
ENGINE SST[L3 WITH TC]
WM: ENGINE

id016039800100
1: Mazda SST number 01-60
2: Global SST number
Example
1:49 UN01 052
2:310–D005

Spring lock
coupler tool
(green)

1:49 UN30 3328 1:– 1:–

2:303–328 2:303–507 2:205-126

Rear oil seal Crankshaft TDC Holding tool

replacer timing peg

1:– 1:49 UN30 1:49 H010 401

2:205–072–02 310610 2:–
2:303–1061
Crankshaft Oil seal installer
holding tool pins Camshaft
alignment
timing tool

1:49 G013 101 1:49 C017 5A0 1:49 9200 145

2:– 2: – 2:–

Remover Engine support Radiator cap

set tester adapter
set

1:49 N013 101A 1:49 0187 280A 1:49 E019 001

2:– 2:– 2:–

Body Oil pressure Adapter

(Components gauge
part of 49 N013
1A0D)
1:49 E042 001 1: – 1:49 H080 740A
2:– 2:134-01049 2: –

Remover Evaporative Pressure tester

emission
system tester

Revised 11/2006 (Ref. No. R172/06) 01-60–1

 2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
SERVICE TOOLS [L3 WITH TC]
1:49 L018 001 1:49 N013 102A 1:49 B019 901B
2:– 2:– 2:–

O2 sensor Adapter Hose Gauge

wrench (Components (Components
part of 49 N013 part of 49 N013
1A0D) 1A0D)

1:49 G040 001 1:49 G040 002

2:– 2:–

Handle Installer —

End Of Sie

01-60–2 Revised 11/2006 (Ref. No. R172/06)