HEATER, VENTILATION &

AIR CONDITIONING (HVAC) 07SECTION

Toc of SCT
ON-BOARD DIAGNOSTIC. . . . 07-02 BASIC SYSTEM . . . . . . . . . . . . 07-11
SYMPTOM CONTROL SYSTEM . . . . . . . . . 07-40
TROUBLESHOOTING . . . . . 07-03 TECHNICAL DATA . . . . . . . . . . 07-50
REFRIGERANT SYSTEM . . . . 07-10 SERVICE TOOLS . . . . . . . . . . . 07-60
Toc of SCT
07–02 ON-BOARD DIAGNOSTIC
HVAC SYSTEM WIRING DIAGRAM . . . . 07–02–2 DTC B1260, B1261, B1274, B1275, B1282, B1283
DTC INSPECTION. . . . . . . . . . . . . . . . . . 07–02–3 (MULTIPLE DTCS INDICATED) . . . . . . . 07–02–9
DTC B1004, B2449, B2450 . . . . . . . . . . . 07–02–5 DTC B1274, B1275. . . . . . . . . . . . . . . . . . 07–02–10
DTC B1005, B1006, B2451, B2452 . . . . 07–02–5 DTC B1282, B1283. . . . . . . . . . . . . . . . . . 07–02–11
DTC B1008, B2453, B2454, B2455 . . . . 07–02–6 DTC B1317 . . . . . . . . . . . . . . . . . . . . . . . . 07–02–12
DTC B1251, B1253 . . . . . . . . . . . . . . . . . 07–02–6 DTC B1318 . . . . . . . . . . . . . . . . . . . . . . . . 07–02–12
DTC B1251, B1253, B1255, B1257, B1274, B1275, DTC B1342, B2207, B2463, B2464, B2465, B2466,
B1282, B1283, B1947, B2014 (MULTIPLE DTCS B2467, B2537, B2538, B2547 . . . . . . . . 07–02–13
INDICATED). . . . . . . . . . . . . . . . . . . . . . 07–02–7 DTC B1947, B2014. . . . . . . . . . . . . . . . . . 07–02–14
DTC B1255, B1257 . . . . . . . . . . . . . . . . . 07–02–8 DTC B2456, B2457, B2458, B2459, B2460, B2461,
DTC B1260, B1261 . . . . . . . . . . . . . . . . . 07–02–9 B2462 . . . . . . . . . . . . . . . . . . . . . . . . . . . 07–02–14
DTC B2832 . . . . . . . . . . . . . . . . . . . . . . . . 07–02–15
DTC B2834 . . . . . . . . . . . . . . . . . . . . . . . . 07–02–15

End of Toc

07

07–02–1
 ON-BOARD DIAGNOSTIC
HVAC SYSTEM WIRING DIAGRAM
DPE070200000W14

IG2 B+

13 14
K H
PCM
A

W 5
BCM 5V
X
6
5V
B
P
L
2 7
E M
R C

T
J
3 8
G M
N I
1 B A
U O
Q 9
CPU M M
A

S
10
4
5V F M 11

15 A
D
12

16

DPE740ZT1101

1 Ambient temperature sensor 9 Air intake actuator

2 Cabin temperature sensor 10 Blower motor
3 Evaporator temperature sensor 11 Blower relay
4 Solar radiation sensor 12 Power MOS FET
5 Magnetic clutch 13 Climate control unit
6 Refrigerant pressure switch 14 A/C relay
7 Air mix actuator 15 TNS relay
8 Airflow mode actuator 16 Each switch

End Of Sie

07–02–2
 ON-BOARD DIAGNOSTIC
DTC INSPECTION
DPE070200000W01
1. Connect the WDS or equivalent to the DLC-2.
2. Shine a 60 W incandescent light from a distance
of approx. 100 mm {3.9 in} directly onto the solar
radiation sensor.

Note
• If incandescent light is not shone on the
solar radiation sensor, the climate control
unit determines a malfunction and indicates
DTC “B1260, B1261”.
DLC-2
3. Verify if any DTCs are displayed.
• If any DTCs are displayed, perform
DPE102ZW2001

troubleshooting according to the

corresponding DTC inspection.
4. After completion of repairs, clear all DTCs from memory. (See 07–02–3 After Repair Procedure.)

After Repair Procedure

1. Connect the WDS or equivalent to the DLC-2.
2. Using the WDS or equivalent, clear DTCs from
the PCM memory.
3. Turn the ignition switch off.
4. Perform the DTC inspection again and verify that
no DTCs are displayed.

DLC-2

DPE102ZW2001

DTC Table
DTC System malfunction location
B1251 Cabin temperature sensor (Open circuit)
B1253 Cabin temperature sensor (GND short)
B1255 Ambient temperature sensor (Open short)
B1257 Ambient temperature sensor (GND short)
B1260 Solar radiation sensor (Battery short)
B1261 Solar radiation sensor (GND short)
B1274 Airflow mode actuator (potentiometer) (Battery short)
B1275 Airflow mode actuator (potentiometer) (GND short) 07
B1282 Air mix actuator (potentiometer) (Battery short)
B1283 Air mix actuator (potentiometer) (GND short)
B1947 Evaporator temperature sensor (GND short)
B2014 Evaporator temperature sensor (Open circuit)
B2832 Airflow mode actuator (motor lock)
B2834 Air mix actuator (motor lock)
U0140 CAN communication system (Reception error in signal from BCM)
U0155 CAN communication system (Reception error in signal from (ICM) (MEC))
U0516 CAN communication system (BUS OFF error)

DTC Table (Water Heater System)

DTC System malfunction location
B1004 Glow plug malfunction: short to battery or transistor failure
B1005 Fuel pump malfunction: short to battery or transistor failure
B1006 Fuel level to low to start the heater
B1007 Coolant pump malfunction: short to battery or transistor failure
B1008 Blower fan malfunction: short to battery

07–02–3
 ON-BOARD DIAGNOSTIC
DTC System malfunction location
B1317 Input voltage high
B1318 Input voltage low
B1342 Malfunction in water heater unit
B2207 ECU ROM checksum error
B2449 Glow plug circuit short to ground
B2450 Glow plug circuit open
B2451 Fuel pump circuit short to ground
B2452 Fuel pump circuit open
B2453 Blower fan circuit short to ground
B2454 Blower fan circuit open
B2455 Blower fan out of range (electromotive force not present)
B2456 Coolant sensor short
B2457 Coolant sensor interrupted
B2458 Overheat sensor short
B2459 Overheat sensor interrupted
B2460 Flame sensor short
B2461 Flame sensor interrupted
B2462 Flame off from max. power
B2463 Overheat
B2464 Start time exceeded
B2465 Start counter overrun/system locked
B2466 Overheat counter overrun/system locked
B2467 Aux. heater cool down time exceeded
B2468 Coolant pump short to ground
B2469 Coolant pump interrupted

* : If a DTC not listed above is detected, there is a water heater malfunction, and the water heater must be
replaced.

PID/DATA Monitor and Record

Unit/ Water Heater
PID Name (Definition) Condition/Specification (Reference) Action
Condition Unit terminal
CCNTFFH • DTC is detected: 1—255 Perform inspection using
– –
(Continuous Codes) • DTC is not detected: 0 appropriate DTC.
VOLT_MDL • Ignition switch ON: B+ Inspect water heater unit
V A
(Control Module Voltage) power supply terminal.
HEATER • Water heater unit is not operating:
Inactive/
(Heater Status) Inactive – –
Active
• Water heater unit is operating: Active
FAN • Blower fan is not operating: 0%
On/Off – –
(Fan Control) • Blower fan is operating: 0—100%
GLOW • Water heater unit is not operating: Off
On/Off – –
(Glow plug) • Water heater unit is operating: On
FUEL_PMP • Water heater unit is not operating: Off
On/Off – –
(Fuel pump) • Water heater unit is operating: On

Simulation Test Item Table

Item Operating part Condition Operation
MIX_ACT Air mix actuator Operate the ON/OFF and verify the operation sound. On/Off
REC/FRESH REC/FRESH switch Operate the ON/OFF and verify the operation sound. On/Off
DISPLAY Information display Verify that it is displayed correctly. On/Off
BLOWER Blower motor Operate the ON/OFF and verify the operation sound. On/Off
MODE_ACT Airflow mode actuator Operate the ON/OFF and verify the operation sound. On/Off

Start Heater

Note
• If the heater is operated for the specified period of time, it stops automatically. After that, the floor fan

07–02–4
 ON-BOARD DIAGNOSTIC
operates for several minutes.

1. Verify that the engine coolant temperature is low.

2. Start the engine.
3. Connect the WDS or equivalent to the DLC-2.
4. Select “Electrical” from the menu.
5. Select “Supplemental Heater”.
6. Select “FFH”.
7. Select “FFH Start Heater Utility” and perform
procedure according to the directions on the WDS
or equivalent screen.
End Of Sie

DLC-2
DPE702ZW1103

DTC B1004, B2449, B2450

DPE070200000W18

B1004 Glow plug malfunction: short to battery or transistor failure

DTC B2449 Glow plug circuit short to ground
B2450 Glow plug circuit open
DETECTION
• CPU detects malfunction in glow plug circuit
CONDITION
POSSIBLE
• Water heater unit malfunction
CAUSE

Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT WATER HEATER UNIT Yes Go to the applicable DTC troubleshooting.
• Replace the water heater unit. (See 07–40–34 No Troubleshooting completed.
WATER HEATER UNIT REMOVAL/
INSTALLATION [MZR-CD (RF Turbo)].)
• Perform the Combustion Test.
• Are any DTCs present?

End Of Sie
DTC B1005, B1006, B2451, B2452
DPE070200000W22

B1005 Fuel pump malfunction: short to battery or transistor failure

B1006 Fuel level to low to start the heater
DTC
B2451 Fuel pump (water heater system) circuit short to ground
B2452 Fuel pump (water heater system) circuit open
DETECTION
• CPU detects malfunction in fuel pump (water heater system) circuit 07
CONDITION
• Fuel pump (water heater system) malfunction
• Water heater unit malfunction
POSSIBLE • Short to ground between water heater unit terminal B and fuel pump (water heater system) terminal A
CAUSE • Open circuit between water heater unit terminal B and fuel pump (water heater system) terminal A
• Open circuit between fuel pump (water heater system) terminal B and GND
• Battery malfunction

WATER HEATER UNIT CONNECTOR FUEL PUMP (WATER HEATER

SYSTEM) CONNECTOR

E C A
B A
F D B

07–02–5
 ON-BOARD DIAGNOSTIC
Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT WIRING HARNESS BETWEEN Yes Go to next step
WATER HEATER UNIT AND FUEL PUMP No Repair wiring harness.
(WATER HEATER SYSTEM) FOR
CONTINUITY
• Start engine.
• Is voltage at fuel pump (water heater system)
connector terminal A approx. 12 V?
2 INSPECT FUEL PUMP (WATER HEATER Yes Go to next step
SYSTEM) No Replace fuel pump (water heater system).
• Inspect fuel pump (water heater system). (See 07–40–35 FUEL PUMP (WATER HEATER SYSTEM)
(See 07–40–35 FUEL PUMP (WATER REMOVAL/INSTALLATION [MZR-CD (RF TURBO)].)
HEATER SYSTEM) INSPECTION [MZR-CD
(RF Turbo)].)
• Is fuel pump (water heater system) okay?
3 INSPECT WIRING HARNESS BETWEEN Yes Go to next step
FUEL PUMP (WATER HEATER SYSTEM) AND No Repair wiring harness.
GROUND FOR CONTINUITY
• Is there continuity fuel pump (water heater
system) connector terminal B and ground?
4 INSPECT WATER HEATER UNIT Yes Replace the water heater unit.
• Clear the DTC. (See 07–40–34 WATER HEATER UNIT REMOVAL/
• Perform the KOEO Self Test. INSTALLATION [MZR-CD (RF Turbo)].)
• Is the same DTC present? No Go to the next step.
5 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform after repair procedure. (See 07–02– No Troubleshooting completed.
3 DTC INSPECTION.)
• Are any DTCs present?

End Of Sie
DTC B1008, B2453, B2454, B2455
DPE070200000W20

B1008 Blower fan malfunction: short to battery

B2453 Blower fan circuit short to ground
DTC
B2454 Blower fan circuit open
B2455 Blower fan out of range (electromotive force not present)
DETECTION
• CPU detects Malfunction in blower fan circuit
CONDITION
POSSIBLE
• Water heater unit malfunction
CAUSE

Diagnostic procedure
ACTION
• Replace water heater unit.
(See 07–40–34 WATER HEATER UNIT REMOVAL/INSTALLATION [MZR-CD (RF Turbo)])

End Of Sie
DTC B1251, B1253
DPE070200000W03

DTC B1251,
Cabin temperature sensor system
B1253
POSSIBLE • Cabin temperature sensor malfunction
CAUSE • Open or short circuit in wiring harness between climate control unit and cabin temperature sensor

07–02–6
 ON-BOARD DIAGNOSTIC
Diagnostic Procedure
STEP INSPECTION ACTION
1 • Inspect the cabin temperature sensor. (See 07– Yes Go to the next step.
40–30 CABIN TEMPERATURE SENSOR No Replace the cabin temperature sensor. (See 07–40–29
INSPECTION.) CABIN TEMPERATURE SENSOR REMOVAL/
• Is it normal? INSTALLATION.)
2 • Disconnect the climate control unit connector and Yes Repair the wiring harness.
the cabin temperature sensor connector. No Go to the next step.
• Is there an open circuit in the wiring harness
between the following terminals of the climate
control unit and the cabin temperature sensor?
— R—B
— U—A
3 • Is there a short circuit to ground in the wiring Yes Repair the wiring harness.
harness between climate control unit terminal R No Connect the climate control unit connector, then go to
and cabin temperature sensor terminal B? the next step.
4 • Turn the ignition switch to the ON position. Yes The system is normal at present. (Clear the malfunction
• Inspect the voltage at the following climate control from the memory.)
unit terminal (wiring harness-side). No Inspect the connection of the climate control unit
— Terminal R (cabin temperature sensor input connector. (See 07–40–40 CLIMATE CONTROL UNIT
signal) INSPECTION [FULL-AUTO AIR CONDITIONER].)
• Is the voltage normal? (Approx. 5 V)

CLIMATE CONTROL UNIT CONNECTOR

CABIN TEMPERATURE SENSOR CONNECTOR

W U S Q O M K I G E C A
B A
X V T R P N L J * F D B

End Of Sie
DTC B1251, B1253, B1255, B1257, B1274, B1275, B1282, B1283, B1947, B2014 (MULTIPLE DTCS
INDICATED)
DPE070200000W04

DTC B1251,
B1253, B1255,
B1257, B1947,
Climate control unit (+5 V power supply or sensor ground) system
B2014, B1282,
B1283, B1274,
B1275
POSSIBLE • Open circuit in wiring harnesses between climate control unit and each temperature sensor, air mix
CAUSE actuator, or airflow mode actuator 07

07–02–7
 ON-BOARD DIAGNOSTIC
Diagnostic Procedure
STEP INSPECTION ACTION
1 • Disconnect the climate control unit connector and Yes Repair the wiring harness.
the evaporator temperature sensor connector. No Inspect the connection of the climate control unit.
• Is there an open circuit in the wiring harness
between climate control unit terminal U and
evaporator temperature sensor terminal A?

CLIMATE CONTROL UNIT CONNECTOR

EVAPORATOR TEMPERATURE SENSOR CONNECTOR

W U S Q O M K I G E C A
B A
X V T R P N L J * F D B

End Of Sie
DTC B1255, B1257
DPE070200000W13

DTC B1255,
Ambient temperature sensor system
B1257
POSSIBLE • Ambient temperature sensor malfunction
CAUSE • Open or short circuit in wiring harness between climate control unit and ambient temperature sensor

Diagnostic Procedure
STEP INSPECTION ACTION
1 • Inspect the ambient temperature sensor. (See 07– Yes Go to the next step.
40–29 AMBIENT TEMPERATURE SENSOR No Replace the ambient temperature sensor. (See 07–40–
INSPECTION.) 29 AMBIENT TEMPERATURE SENSOR REMOVAL/
• Is it normal? INSTALLATION.)
2 • Disconnect the climate control unit connector and Yes Repair the wiring harness.
the ambient temperature sensor connector. No Go to the next step.
• Is there an open circuit in the wiring harness
between the following terminals of the climate
control unit and the ambient temperature sensor?
— N—B
— U—A
3 • Is there a short circuit to ground in the wiring Yes Repair the wiring harness.
harness between climate control unit terminal N No Connect the climate control unit connector, then go to
and ambient temperature sensor terminal B? the next step.
4 • Turn the ignition switch to the ON position. Yes The system is normal at present. (Clear the past
• Inspect the voltage at the following climate control malfunction from the memory.)
unit terminal (wiring harness-side). No Inspect the connection of the climate control unit
— Terminal N (ambient temperature sensor input connector. (See 07–40–40 CLIMATE CONTROL UNIT
signal) INSPECTION [FULL-AUTO AIR CONDITIONER].)
• Is the voltage normal? (Approx. 5 V)

CLIMATE CONTROL UNIT CONNECTOR

AMBIENT TEMPERATURE SENSOR CONNECTOR

W U S Q O M K I G E C A
B A
X V T R P N L J * F D B

End Of Sie

07–02–8
 ON-BOARD DIAGNOSTIC
DTC B1260, B1261
DPE070200000W06

DTC B1260,
Solar radiation sensor system
B1261
POSSIBLE • Solar radiation sensor malfunction
CAUSE • Open or short circuit in wiring harness between climate control unit and solar radiation sensor

Diagnostic Procedure
STEP INSPECTION ACTION
1 • Inspect the solar radiation sensor. (See 07–40–28 Yes Go to the next step.
SOLAR RADIATION SENSOR INSPECTION.) No Replace the solar radiation sensor. (See 07–40–28
• Is it normal? SOLAR RADIATION SENSOR REMOVAL/
INSTALLATION.)
2 • Disconnect the climate control unit connector and Yes Go to the next step.
the solar radiation sensor connector. No Repair the wiring harness.
• Is there continuity between the following terminals
of the climate control unit and the solar radiation
sensor?
— S—B
— P—A
3 • Is there a short circuit to ground in the wiring Yes Repair the wiring harness.
harness between climate control unit terminal S No Inspect the connection of the climate control unit
and solar radiation sensor terminal B? connector. (See 07–40–40 CLIMATE CONTROL UNIT
INSPECTION [FULL-AUTO AIR CONDITIONER].)

CLIMATE CONTROL UNIT CONNECTOR SOLAR RADIATION SENSOR CONNECTOR

W U S Q O M K I G E C A
X V T R P N L J F D B B A
*

End Of Sie
DTC B1260, B1261, B1274, B1275, B1282, B1283 (MULTIPLE DTCS INDICATED)
DPE070200000W07

DTC B1260,
B1261, B1282,
Climate control unit (+5 V power supply) system
B1283, B1274,
B1275
POSSIBLE • Open or short circuit in wiring harnesses between climate control unit and solar radiation sensor, air mix
CAUSE actuator, or airflow mode actuator
07

07–02–9
 ON-BOARD DIAGNOSTIC
Diagnostic Procedure
STEP INSPECTION ACTION
1 • Disconnect the climate control unit connector and Yes Repair the wiring harness.
the airflow mode actuator connector. No Go to the next step.
• Is there an open circuit in the wiring harness
between climate control unit terminal P and airflow
mode actuator terminal A?
2 • Is there a short circuit to ground in the wiring Yes Repair the wiring harness.
harness between climate control unit terminal P No Go to the next step.
and airflow mode actuator terminal A?
3 • Is there a short circuit to ground in the wiring Yes Repair the wiring harness.
harness between climate control unit terminal P No Go to the next step.
and air mix actuator terminal A?
4 • Is there a short circuit to ground in the wiring Yes Repair the wiring harness.
harness between climate control unit terminal P No The system is normal at present. (Clear the malfunction
and solar radiation sensor terminal A? from the memory.)

CLIMATE CONTROL UNIT CONNECTOR AIR MIX ACTUATOR AIRFLOW MODE SOLAR RADIATION
CONNECTOR ACTUATOR CONNECTOR SENSOR CONNECTOR

W U S Q O M K I G E C A
X V T R P N L J F D B F * D C B A F * D C B A B A
*

End Of Sie
DTC B1274, B1275
DPE070200000W08

DTC B1274,
Airflow mode actuator (potentiometer) system
B1275
• Airflow mode actuator malfunction
POSSIBLE
• Open circuit in wiring harness between climate control unit and airflow mode actuator
CAUSE
• Short circuit in wiring harness between climate control unit (terminal L) and air mix actuator (terminal C)

07–02–10
 ON-BOARD DIAGNOSTIC
Diagnostic Procedure
STEP INSPECTION ACTION
1 • Inspect the airflow mode actuator. (See 07–40–9 Yes Go to the next step.
AIRFLOW MODE ACTUATOR INSPECTION.) No Replace the airflow mode actuator. (See 07–40–9
• Is it normal? AIRFLOW MODE ACTUATOR REMOVAL/
INSTALLATION.)
2 • Disconnect the climate control unit connector and Yes Repair the wiring harness.
the airflow mode actuator connector. No Go to the next step.
• Is there an open circuit in the wiring harness
between the following terminals of the climate
control unit and the airflow mode actuator?
— P—A
— J—C
— U—B
3 • Is there a short circuit to ground in the wiring Yes Repair the wiring harness.
harness between climate control unit terminal J No The system is normal at present. (Clear the malfunction
and airflow mode actuator terminal C? from the memory.)

CLIMATE CONTROL UNIT CONNECTOR

AIRFLOW MODE ACTUATOR CONNECTOR

W U S Q O M K I G E C A
F * D C B A
X V T R P N L J * F D B

End Of Sie
DTC B1282, B1283
DPE070200000W09

DTC B1282,
Air mix actuator (potentiometer) system
B1283
• Air mix actuator malfunction
POSSIBLE
• Open circuit in wiring harness between climate control unit and air mix actuator
CAUSE
• Short circuit in wiring harness between climate control unit (terminal L) and air mix actuator (terminal C)

07

07–02–11
 ON-BOARD DIAGNOSTIC
Diagnostic Procedure
STEP INSPECTION ACTION
1 • Inspect the air mix actuator. (See 07–40–8 AIR Yes Go to the next step.
MIX ACTUATOR INSPECTION.) No Replace the air mix actuator. (See 07–40–7 AIR MIX
• Is it normal? ACTUATOR REMOVAL/INSTALLATION.)
2 • Disconnect the climate control unit connector and Yes Repair the wiring harness.
the air mix actuator connector. No Go to the next step.
• Is there an open circuit in the wiring harness
between the following terminals of the climate
control unit and the air mix actuator?
— P—A
— L—C
— U—B
3 • Is there a short circuit to ground in the wiring Yes Repair the wiring harness.
harness between climate control unit terminal L No The system is normal at present. (Clear the malfunction
and air mix actuator terminal C? from the memory.)

CLIMATE CONTROL UNIT CONNECTOR

AIR MIX ACTUATOR CONNECTOR

W U S Q O M K I G E C A
X V T R P N L J * F D B F * D C B A

End Of Sie
DTC B1317
DPE070200000W15

DTC B1317 Input voltage high

DETECTION
• Voltage detected at water heater unit terminals E is more than 16 V.
CONDITION
• Short to power circuit between the generator and PCM
POSSIBLE
• Generator malfunction
CAUSE
• Battery malfunction
WATER HEATER UNIT CONNECTOR

E C A
F D B

Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT BATTERY VOLTAGE Yes Go to next step.
• Measure battery voltage. No Inspect charging system.
• Is voltage less than 16 V?
2 INSPECT WATER HEATER UNIT Yes Replace the water heater unit.
• Clear the DTC. (See 07–40–34 WATER HEATER UNIT REMOVAL/
• Perform the KOEO Self Test. INSTALLATION [MZR-CD (RF Turbo)])
• Is the same DTC present? No Go to the next step.
3 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the after repair procedure. (See 07–02– No Troubleshooting completed.
3 DTC INSPECTION.)
• Are any DTCs present?

End Of Sie
DTC B1318
DPE070200000W16

DTC B1318 Input voltage low

07–02–12
 ON-BOARD DIAGNOSTIC
DETECTION
• Voltage detected at water heater unit terminals E is less than 9 V.
CONDITION
POSSIBLE • Generator malfunction
CAUSE • Battery malfunction
WATER HEATER UNIT CONNECTOR

E C A
F D B

Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT BATTERY VOLTAGE Yes Go to next step.
• Measure battery voltage. No Battery is weak.
• Is voltage more than 9 V? • Inspect charging system.
2 INSPECT WIRING HARNESS BETWEEN W.HEAT Yes Go to next step.
40 A FUSE AND WATER HEATER UNIT No Repair wiring harness.
• Turn ignition switch to ON position.
• Measure voltage at water heater unit connector
terminal A.
• Is voltage more than 9 V?
3 INSPECT WATER HEATER UNIT Yes Replace the water heater unit.
• Clear the DTC. (See 07–40–34 WATER HEATER UNIT REMOVAL/
• Perform the KOEO Self Test. INSTALLATION [MZR-CD (RF Turbo)])
• Is the same DTC present? No Go to the next step.
4 VERIFY AFTER REPAIR PROCEDURE Yes Go to the applicable DTC troubleshooting.
• Perform the after repair procedure. (See 07–02– No Troubleshooting completed.
3 DTC INSPECTION.)
• Are any DTCs present?

End Of Sie
DTC B1342, B2207, B2463, B2464, B2465, B2466, B2467, B2537, B2538, B2547
DPE070200000W17

B1342 Malfunction in water heater unit

B2207 ECU ROM checksum error
B2463 Overheat
B2464 Start time exceeded
B2465 Start counter overrun/system locked
DTC
B2466 Overheat counter overrun/system locked 07
B2467 AUX. heater cool down time exceeded
B2537 Water heater system does not start
B2538 Unstable flame
B2547 Flame prior to operation
DETECTION
• CPU detects malfunction in water heater unit
CONDITION
• Water heater unit malfunction
POSSIBLE — CPU malfunction
CAUSE — Glow plug malfunction
— Flame detection sensor malfunction

07–02–13
 ON-BOARD DIAGNOSTIC
Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT WATER HEATER UNIT Yes Go to the applicable DTC troubleshooting.
• Replace the water heater unit. (See 07–40–34 No Troubleshooting completed.
WATER HEATER UNIT REMOVAL/
INSTALLATION [MZR-CD (RF Turbo)])
• Perform the Combustion Test.
• Are any DTCs present?

End Of Sie
DTC B1947, B2014
DPE070200000W10

DTC B1947,
Evaporator temperature sensor system
B2014
POSSIBLE • Evaporator temperature sensor malfunction
CAUSE • Open or short circuit in wiring harness between climate control unit and evaporator temperature sensor

Diagnostic Procedure
STEP INSPECTION ACTION
1 • Inspect the evaporator temperature sensor. (See Yes Go to the next step.
07–40–31 EVAPORATOR TEMPERATURE No Replace the evaporator temperature sensor. (See 07–
SENSOR INSPECTION.) 40–31 EVAPORATOR TEMPERATURE SENSOR
• Is it normal? REMOVAL/INSTALLATION.)
2 • Disconnect the climate control unit connector and Yes Repair the wiring harness.
the evaporator temperature sensor connector. No Go to the next step.
• Is there an open circuit in the wiring harness
between the following terminals of the climate
control unit and the evaporator temperature
sensor?
— T—B
— U—A
3 • Is there a short circuit to ground in the wiring Yes Repair the wiring harness.
harness between climate control unit terminal T No Connect the climate control unit connector, then go to
and evaporator temperature sensor terminal B? the next step.
4 • Turn the ignition switch to the ON position. Yes The system is normal at present. (Clear the malfunction
• Inspect the voltage at the following climate control from the memory.)
unit terminal (wiring harness-side). No Inspect the connection of the climate control unit
— Terminal T (evaporator temperature sensor connector. (See 07–40–40 CLIMATE CONTROL UNIT
input signal) INSPECTION [FULL-AUTO AIR CONDITIONER].)
• Is the voltage normal? (Approx. 5 V)

CLIMATE CONTROL UNIT CONNECTOR

EVAPORATOR TEMPERATURE SENSOR CONNECTOR

W U S Q O M K I G E C A
B A
X V T R P N L J * F D B

End Of Sie
DTC B2456, B2457, B2458, B2459, B2460, B2461, B2462
DPE070200000W21

B2456 Coolant sensor short

B2457 Coolant sensor interrupted
B2458 Overheat sensor short
DTC B2459 Overheat sensor interrupted
B2460 Flame sensor short
B2461 Flame sensor interrupted
B2462 Flame off from max. power
DETECTION
• CPU detects malfunction in sensor (water heater unit)
CONDITION

07–02–14
 ON-BOARD DIAGNOSTIC
B2456 Coolant sensor short
B2457 Coolant sensor interrupted
B2458 Overheat sensor short
DTC B2459 Overheat sensor interrupted
B2460 Flame sensor short
B2461 Flame sensor interrupted
B2462 Flame off from max. power
POSSIBLE
• Water heater unit malfunction
CAUSE

Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT WATER HEATER UNIT Yes Go to the applicable DTC troubleshooting.
• Replace the water heater unit. (See 07–40–34 No Troubleshooting completed.
WATER HEATER UNIT REMOVAL/
INSTALLATION [MZR-CD (RF Turbo)])
• Perform the Combustion Test.
• Are any DTCs present?

End Of Sie
DTC B2832
DPE070200000W11

DTC B2832 Airflow mode actuator (motor lock) system

• Airflow mode actuator malfunction
POSSIBLE
• A/C unit (airflow mode link and airflow mode crank) malfunction
CAUSE
• Open or short circuit in wiring harness between climate control unit and airflow mode actuator

Diagnostic Procedure
STEP INSPECTION ACTION
1 • Disconnect the airflow mode actuator connector. Yes Connect the connector, then go to Step 3.
• Connect battery positive voltage to airflow mode No Go to the next step.
actuator terminal D (or terminal F) and terminal F
(or terminal D) to ground.
• Does the airflow mode actuator operate?
2 • Remove the airflow mode actuator. Yes Replace the airflow mode actuator. (See 07–40–9
• Operate the airflow mode main link manually. AIRFLOW MODE ACTUATOR REMOVAL/
• Does the airflow mode main link operate INSTALLATION.)
smoothly? No Replace the airflow mode main link, airflow mode sub
link, and the airflow mode crank.
3 • Disconnect the climate control unit connector. Yes Inspect the connection of the climate control unit
• Connect battery positive voltage to climate control connector. (See 07–40–40 CLIMATE CONTROL UNIT
unit terminal I (or terminal G) and terminal G (or INSPECTION [FULL-AUTO AIR CONDITIONER].)
terminal I) to ground. No Repair the wiring harness.
• Does the airflow mode actuator operate?
07
CLIMATE CONTROL UNIT CONNECTOR
AIRFLOW MODE ACTUATOR CONNECTOR

W U S Q O M K I G E C A
F * D C B A
X V T R P N L J * F D B

End Of Sie
DTC B2834
DPE070200000W12

DTC B2834 Air mix actuator (motor lock) system

• Air mix actuator malfunction
POSSIBLE
• A/C unit (air mix link and air mix crank) malfunction
CAUSE
• Open or short circuit in wiring harness between climate control unit and air mix actuator

07–02–15
 ON-BOARD DIAGNOSTIC
Diagnostic Procedure
STEP INSPECTION ACTION
1 • Disconnect the air mix actuator connector. Yes Connect the connector, then go to Step 3.
• Connect battery positive voltage to air mix actuator No Go to the next step.
terminal F (or terminal D) and terminal D (or
terminal F) to ground.
• Does the air mix actuator operate?
2 • Remove the air mix actuator. Yes Replace the air mix actuator. (See 07–40–7 AIR MIX
• Operate the air mix link manually. ACTUATOR REMOVAL/INSTALLATION.)
• Does the air mix link operate smoothly? No Replace the air mix link and the air mix crank.
3 • Disconnect the climate control unit connector. Yes Inspect the connection of the climate control unit
• Connect battery positive voltage to climate control connector. (See 07–40–40 CLIMATE CONTROL UNIT
unit terminal E (or terminal C) and terminal C (or INSPECTION [FULL-AUTO AIR CONDITIONER].)
terminal E) to ground. No Repair the wiring harness.
• Does the air mix actuator operate?

CLIMATE CONTROL UNIT CONNECTOR

AIR MIX ACTUATOR CONNECTOR

W U S Q O M K I G E C A
X V T R P N L J * F D B F * D C B A

End Of Sie

07–02–16
 SYMPTOM TROUBLESHOOTING

07–03 SYMPTOM TROUBLESHOOTING

HVAC SYSTEM WIRING DIAGRAM . . . . 07–03–1 NO.4 AIR INTAKE MODE DOES NOT
FOREWORD . . . . . . . . . . . . . . . . . . . . . . 07–03–3 CHANGE. . . . . . . . . . . . . . . . . . . . . . . . . 07–03–7
TROUBLESHOOTING INDEX. . . . . . . . . 07–03–3 NO.5 NO TEMPERATURE CONTROL WITH
NO.1 INSUFFICIENT AIR (OR NO AIR) BLOWN CLIMATE CONTROL UNIT . . . . . . . . . . 07–03–9
FROM VENTS . . . . . . . . . . . . . . . . . . . . 07–03–3 NO.6 WINDSHIELD FOGGED . . . . . . . . . 07–03–10
NO.2 AMOUNT OF AIR BLOWN FROM VENTS NO.7 AIR FROM VENTS NOT COLD
DOES NOT CHANGE . . . . . . . . . . . . . . 07–03–4 ENOUGH . . . . . . . . . . . . . . . . . . . . . . . . 07–03–12
NO.3 AMOUNT OF AIR BLOWN FROM VENTS NO.8 NO COOL AIR . . . . . . . . . . . . . . . . . 07–03–15
DOES NOT CHANGE . . . . . . . . . . . . . . 07–03–6 NO.9 NOISE WHILE OPERATING A/C
SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . 07–03–17

End of Toc
HVAC SYSTEM WIRING DIAGRAM
DPE070300000W12
Full-auto air conditioner
IG2 B+

13 14
K H
PCM
A

W 5
BCM 5V
X
6
5V
B
P
L
2 7
E M
R C

T
J
3 8
G M
N I
1 B A
U O
Q 9
M M 07
CPU
A

S
10
4
5V F M 11

15 A
D
12

16

DPE740ZT1101

1 Ambient temperature sensor 2 Cabin temperature sensor

07–03–1
 SYMPTOM TROUBLESHOOTING
3 Evaporator temperature sensor
4 Solar radiation sensor
5 Magnetic clutch
6 Refrigerant pressure switch
7 Air mix actuator
8 Airflow mode actuator
9 Air intake actuator
10 Blower motor
11 Blower relay
12 Power MOS FET
13 Climate control unit
14 A/C relay
15 TNS relay
16 Each switch

Manual air conditioner

IG2 B+ B+ IG2 IG2 IG1 B+

B A A B C A

1 11 6
D E E D D E
4

A
A M PCM
7
M 2 G E C

B
3
8
5
A

BCM
C

A D F E C T R P C V B M K X L E I G

9 CPU 10

DPE740ZT1102

1 Blower relay 3 Resistor

2 Blower motor 4 Air intake actuator

07–03–2
 SYMPTOM TROUBLESHOOTING
5 Evaporator temperature sensor
6 A/C relay
7 Magnetic clutch
8 Refrigerant pressure switch
9 Fan switch
10 Climate control unit
11 TNS relay

End Of Sie
FOREWORD
DPE070300000W01
• The areas for inspection (steps) are given according to various circuit malfunctions. Use the following chart to
verify the symptoms of the trouble in order to diagnose the appropriate area.
End Of Sie
TROUBLESHOOTING INDEX
DPE070300000W02

No. TROUBLESHOOTING ITEM DESCRIPTION

1 Insufficient air (or no air) blown from vents • Problem with each vent and/or duct
• Airflow mode does not change
2 Amount of air blown from vents does not change. (Full- • Malfunction in blower system
auto air conditioner)
3 Amount of air blown from vents does not change. (Manual • Malfunction in blower system
air conditioner)
4 Air intake mode does not change. • Air intake mode does not change when switching
REC/FRESH mode.
5 No temperature control with climate control unit • Malfunction in A/C unit and/or climate control unit
air mix system
6 Windshield fogged. • A/C compressor does not operate while airflow
mode is in DEFROSTER or HEAT/DEF modes.
• Air intake mode does not change to FRESH while
airflow mode is in DEFROSTER or HEAT/DEF
modes.
7 Air from vents not cold enough • Magnetic clutch operates but A/C system
malfunctions.
8 No cool air • Magnetic clutch does not operate.
9 Noise while operating A/C system • Noise from magnetic clutch, A/C compressor, hose
or refrigerant line

End Of Sie
NO.1 INSUFFICIENT AIR (OR NO AIR) BLOWN FROM VENTS
DPE070300000W03

1 Insufficient air (or no air) blown from vents

• Problem with each vent and/or duct.
DESCRIPTION
• Airflow mode does not change.
07
• Malfunction in airflow mode actuator
POSSIBLE • Malfunction in VENT mode system
CAUSE • Malfunction in HEAT mode system
• Malfunction in DEFROSTER mode system

07–03–3
 SYMPTOM TROUBLESHOOTING
Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT AIRFLOW MODE ACTUATOR Yes Go to the next step.
• Inspect airflow mode actuator. No Repair or replace malfunctioning part in accordance with
• Is it okay? inspection result.
2 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to Step 5.
IS IN VENT MODE OR OTHER MODES No Go to the next step.
• Does air blow out when in the VENT mode?
3 INSPECT VENT Yes Remove obstruction, then go to Step 9.
• Is the vent clogged? No Go to the next step.
4 VERIFY THAT DUCT IN DASHBOARD IS Yes Inspect the duct for clogging, deformation and air leakage,
INSTALLED then go to Step 9.
• Is the duct in the dashboard properly No Install the duct securely in the proper position, then go to
installed? Step 9.
5 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN HEAT MODE OR DEFROSTER MODE No Inspect the vent for clogging, then go to Step 9.
• Does air blow out when in the HEAT mode?
6 INSPECT DEFROSTER MODE Yes Operation is normal. Recheck malfunction symptoms.
• Does air blow out when in the DEFROSTER No Go to the next step.
mode?
7 INSPECT VENT Yes Remove obstruction, then go to Step 9.
• Is the vent clogged? No Go to the next step.
8 VERIFY THAT DEFROSTER DUCT IS Yes Inspect the duct for clogging, deformation, and air leakage,
INSTALLED then go to the next step.
• Is the defroster duct properly installed? No Install the duct securely in proper position, then go to the
next step.
9 CONFIRM THAT MALFUNCTION SYMPTOM Yes Troubleshooting completed.
DOES NOT RECUR AFTER REPAIR Explain repairs to customer.
• Does air blow out? No Recheck malfunction symptoms, then repeat from Step 1 if
the malfunction recurs.

End Of Sie
NO.2 AMOUNT OF AIR BLOWN FROM VENTS DOES NOT CHANGE
DPE070300000W04
Full-auto Air Conditioner
2 Amount of air blown from vents does not change.
DESCRIPTION • Malfunction in blower system
• A/C unit malfunction
POSSIBLE • Blower motor malfunction
CAUSE • Malfunction in power MOS FET system
• Climate control unit malfunction

• When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while
performing the inspection to discover whether poor contact points are the cause of any intermittent
malfunctions. If there is a problem, inspect make sure connectors, terminals and wiring harnesses are
connected correctly and undamaged.

07–03–4
 SYMPTOM TROUBLESHOOTING
Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT HEATER BLOWER 40 A FUSE Yes Go to the next step.
• Inspect the HEATER BLOWER 40 A fuse. No Replace the fuse, then go to Step 15. If the fuse burns out
• Is it normal? immediately, go to the next step.
2 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to Step 4.
IS IN A/C UNIT OR ELSEWHERE No Go to the next step.
• Turn the ignition switch to the ON position.
• Turn the fan switch to ON position.
• Recirculate air inside the vehicle.
• Does the blower motor rotate smoothly?
3 INSPECT A/C UNIT INTAKE VENT Yes Remove obstruction, then go to Step 15.
• Is A/C unit intake vent clogged? No Inspect if there are any obstruction in the A/C unit passage,
then go to Step 15.
4* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to Step 8.
IS IN BLOWER RELAY SYSTEM OR POWER No Go to the next step.
MOS FET SYSTEM
• Turn the ignition switch to ON position.
• Turn the fan switch to OFF position.
• Measure the voltage at the following blower
motor terminal.
— Terminal B (blower motor operation
signal)
• Is voltage approx. 12 V?
5* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN WIRING HARNESS (LACK OF No Repair the wiring harness between the blower relay and
CONTINUITY BETWEEN FUSE BLOCK AND HEATER BLOWER 40 A fuse, then go to Step 15.
BLOWER RELAY) OR ELSEWHERE
• Measure the voltage at the following blower
relay terminals.
— Terminal B (IG2 signal)
— Terminal A (B+ signal)
• Is the voltage approx. 12 V?
6* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN WIRING HARNESS (LACK OF No Repair the wiring harness between the blower relay and
CONTINUITY BETWEEN BLOWER RELAY ground, then go to Step 15.
AND GROUND) OR ELSEWHERE
• Measure the voltage at the following blower
relay terminal.
— Terminal D (GND signal)
• Is the voltage approx. 0 V?
7* INSPECT TO SEE WHETHER MALFUNCTION Yes Repair the wiring harness between the blower relay and
IS IN WIRING HARNESS (LACK OF blower motor, then go to Step 15.
CONTINUITY BETWEEN BLOWER RELAY No Replace the blower relay, then go to Step 15.
AND BLOWER MOTOR) OR BLOWER RELAY
• Measure the voltage at the following blower
relay terminal. 07
— Terminal E (blower motor operation
signal)
• Is the voltage approx. 12 V?
8* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN BLOWER MOTOR OR ELSEWHERE No Inspect the blower motor, then go to Step 15.
• Measure the voltage at the following blower
motor terminal.
— Terminal B (blower motor operation
signal)
• Is the voltage approx. 12 V?
9* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN WIRING HARNESS (LACK OF No Repair the wiring harness between the blower motor and
CONTINUITY BETWEEN BLOWER MOTOR power MOS FET, then go to Step 15.
AND POWER MOS FET) OR ELSEWHERE
• Measure the voltage at the following terminal
of power MOS FET.
— Terminal C (blower motor operation
signal)
• Is voltage approx. 12 V?

07–03–5
 SYMPTOM TROUBLESHOOTING
STEP INSPECTION ACTION
10* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN WIRING HARNESS (LACK OF No Repair the wiring harness between the power MOS FET
CONTINUITY BETWEEN POWER MOS FET and ground, then go to Step 15.
AND GROUND) OR ELSEWHERE
• Measure the voltage at the following power
MOS FET terminal.
— Terminal A (blower motor operation
signal)
• Is the voltage approx. 0 V?
11 INSPECT A/C UNIT Yes Go to the next step.
• Inspect the fan in A/C unit. No Remove obstruction, repair or replace the fan and A/C unit
— Is the fan free of interference with the A/C case, then go to Step 15.
unit case?
— Is the fan free of foreign material and
obstruction?
• Is the fan normal?
12* INSPECT TO SEE WHETHER MALFUNCTION Yes Replace the power MOS FET, then go to Step 15.
IS IN POWER MOS FET OR ELSEWHERE No Go to the next step.
• Disconnect power MOS FET connector.
• Turn the fun switch to 1st position from off.
• Measure the voltage at the following power
MOS FET terminal.
— Terminal B (blower motor control signal)
• Is voltage approx. 10 V?
13* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN WIRING HARNESS (LACK OF No Repair the wiring harness between the power MOS FET
CONTINUITY BETWEEN POWER MOS FET and climate control unit, then go to Step 15.
AND CLIMATE CONTROL UNIT) OR
ELSEWHERE
• Turn the ignition switch to the LOCK position.
• Disconnect climate control unit connector.
• Inspect for continuity at the following
terminals between the power MOS FET and
climate control unit.
— Terminal B—F (blower motor control
signal)
— Terminal C—D (blower motor feedback
signal)
• Is there continuity?
14* INSPECT TO SEE WHETHER MALFUNCTION Yes Repair the wiring harness between the power MOS FET
IS IN CLIMATE CONTROL UNIT OR WIRING and ground, then go to the next step.
HARNESS (SHORT TO GROUND IN WIRING No Replace the climate control unit, then go to the next step.
HARNESS BETWEEN POWER MOS FET AND
CLIMATE CONTROL UNIT)
• Inspect for continuity at the following terminal
between the power MOS FET and ground.
— Terminal A (blower motor control signal)—
ground
• Is there continuity?
15 CONFIRM THAT MALFUNCTION SYMPTOM Yes Troubleshooting completed.
DOES NOT RECUR AFTER REPAIR Explain repairs to customer.
• Is air discharged from vent? No Recheck malfunction symptoms, then repeat from Step 1 if
the malfunction recurs.

End Of Sie
NO.3 AMOUNT OF AIR BLOWN FROM VENTS DOES NOT CHANGE
DPE070300000W05
Manual Air Conditioner
3 Amount of air blown from vents does not change.
DESCRIPTION • Malfunction in blower system
POSSIBLE • Blower relay, blower motor, resistor, fan switch malfunction
CAUSE • A/C unit malfunction

07–03–6
 SYMPTOM TROUBLESHOOTING
Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT BLOWER SYSTEM Yes Go to the next step.
• Inspect the following systems and electrical No Repair or replace the malfunctioning part, then go to Step 5.
parts.
— Blower relay
— Blower motor
— Resistor
— Fan switch
— Related wiring harnesses
• Are they normal?
2 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to Step 4.
IS IN A/C UNIT OR ELSEWHERE No Go to the next step.
• Turn the ignition switch to the ON position.
• Turn the fan switch on.
• Recirculate air inside the vehicle.
• Does the blower motor rotate smoothly?
3 INSPECT A/C UNIT Yes Go to the next step.
• Inspect blower motor. No Remove obstruction, repair or replace the fan and A/C unit
— Is the fan free of interference from the A/C case, then go to Step 5.
unit case?
— Is the fan free of foreign material and
obstructions?
• Is the fan normal?
4 INSPECT A/C UNIT INTAKE VENT Yes Remove obstruction, then go to the next step.
• Is the A/C unit intake vent clogged? No Inspect if there are any obstructions in the A/C unit passage,
then go to the next step.
5 VERIFY THAT MALFUNCTION SYMPTOM Yes Troubleshooting completed.
OCCURS AFTER REPAIR Explain repairs to customer.
• Does air blow out? No Recheck malfunction symptoms, then repeat from Step 1 if
the malfunction recurs.

End Of Sie
NO.4 AIR INTAKE MODE DOES NOT CHANGE
DPE070300000W06

4 Air intake mode does not change.

DESCRIPTION • Air intake mode does not change when switching REC/FRESH mode.
POSSIBLE • Air intake actuator malfunction
CAUSE • Air intake door malfunction

• When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while
performing the inspection to discover whether poor contact points are the cause of any intermittent
malfunctions. If there is a problem, inspect to make sure connectors, terminals and wiring harnesses are
connected correctly and undamaged.

07

07–03–7
 SYMPTOM TROUBLESHOOTING
Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT AIR INTAKE ACTUATOR Yes Go to the next step.
(Auto A/C No Replace the air intake actuator, then go to Step 9.
• Inspect the following items using WDS or
equivalent simulation function.
— MIX-ACT (Air intake actuation)
• Is it okay?
(Manual A/C)
• Inspect air intake actuator.
• Is it okay?
2* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
(LACK OF CONTINUITY) IS IN AIR INTAKE No Go to Step 4.
ACTUATOR, WIRING HARNESS (BETWEEN
CLIMATE CONTROL UNIT AND AIR INTAKE
ACTUATOR) OR ELSEWHERE
• Turn the ignition switch to the ON position.
• Measure the voltages at the following climate
control unit terminals.
— Terminal O (24-pin, FRESH motor drive
signal)
— Terminal Q (24-pin, RECIRCULATE motor
drive signal)
(See 07–40–40 CLIMATE CONTROL
UNIT INSPECTION [FULL-AUTO AIR
CONDITIONER].)
• Are voltages normal?
3* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to Step 7.
(LACK OF CONTINUITY) IS IN AIR INTAKE No Repair the wiring harness between the climate control unit
ACTUATOR OR WIRING HARNESS and air intake actuator, then go to Step 9.
(BETWEEN CLIMATE CONTROL UNIT AND
AIR INTAKE ACTUATOR)
• Measure the voltages at the following air
intake actuator terminals.
— Terminal E (FRESH motor drive signal)
— Terminal C (RECIRCULATE motor drive
signal)
• Are voltages as shown below?
— Terminal E: approx. 0.5 V during
RECIRCULATE and approx. 10 V during
FRESH
— Terminal C: approx. 10 V during
RECIRCULATE and approx. 0.5 V during
FRESH
4 INSPECT TO SEE WHETHER MALFUNCTION Yes Inspect the air intake actuator, then go to Step 9.
IS IN AIR INTAKE ACTUATOR OR No Go to the next step.
ELSEWHERE
• Disconnect the air intake actuator connector.
• Measure the voltages at the following climate
control unit terminals.
— Terminal O (FRESH motor drive signal)
— Terminal Q (RECIRCULATE motor drive
signal)
(See 07–40–40 CLIMATE CONTROL
UNIT INSPECTION [FULL-AUTO AIR
CONDITIONER].)
• Are voltages normal?
5 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN WIRING HARNESS (SHORT TO B+ No Repair the wiring harness between the climate control unit
BETWEEN CLIMATE CONTROL UNIT AND and air intake actuator, then go to Step 9.
AIR INTAKE ACTUATOR) OR ELSEWHERE
• Disconnect the climate control unit
connector.
• Measure the voltages at the following climate
control unit terminals.
— Terminal O (FRESH motor drive signal)
— Terminal Q (RECIRCULATE motor drive
signal)
• Are voltages approx. 0 V?

07–03–8
 SYMPTOM TROUBLESHOOTING
STEP INSPECTION ACTION
6 INSPECT TO SEE WHETHER MALFUNCTION Yes Repair the wiring harness between the climate control unit
IS IN WIRING HARNESS (SHORT TO and air intake actuator, then go to Step 9.
GROUND BETWEEN CLIMATE CONTROL No Go to the next step.
UNIT AND AIR INTAKE ACTUATOR) OR
ELSEWHERE
• Turn the ignition switch to the LOCK position.
• Inspect for continuity at the following
terminals between the climate control unit
and ground.
— Terminal O (FRESH motor drive signal)
— Terminal Q (RECIRCULATE motor drive
signal)
• Is there continuity?
7 INSPECT AIR INTAKE LINK Yes Go to the next step.
• Inspect the air intake links. No Apply grease to the links. If any the links are damaged,
— Is there grease on link? replace the air intake actuator, then go to Step 9.
— Are the links securely and properly
installed?
— Are the links free of obstructions and
hindrances?
• Are the above items normal?
8 INSPECT TO SEE WHETHER MALFUNCTION Yes Replace the climate control unit, then go to the next step.
IS IN CLIMATE CONTROL UNIT OR AIR No Remove obstruction, or install the doors in the proper
INTAKE DOOR position. If any doors are cracked or damaged, replace
• Inspect the A/C unit air intake door. them, then go to the next step.
— Is the door free of obstructions, cracks,
and damage?
— Are the doors securely and properly
installed?
• Are the above items normal?
9 CONFIRM THAT MALFUNCTION SYMPTOMS Yes Troubleshooting completed. Explain repairs to customer.
DO NOT RECUR AFTER REPAIR No Recheck malfunction symptoms, then repeat from Step 1 if
• Does the air intake mode change smoothly? the malfunction recurs.

End Of Sie
NO.5 NO TEMPERATURE CONTROL WITH CLIMATE CONTROL UNIT
DPE070300000W07

5 No temperature control with climate control unit

DESCRIPTION • Malfunction in A/C unit and/or climate control unit air intake system
• A/C unit air intake link, air intake crank, air intake rod, air intake wire, wire clamp malfunction
POSSIBLE • Climate control unit rack-and-pinion, air intake wire malfunction
CAUSE • A/C unit air intake door malfunction
• Heater piping malfunction

07

07–03–9
 SYMPTOM TROUBLESHOOTING
Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT COOLANT TEMPERATURE Yes Go to the next step.
• Is the coolant sufficiently warmed up? No Warm up the engine, then go to Step 8.
2 INSPECT A/C UNIT AIR INTAKE SYSTEM Yes Go to the next step.
• Inspect the A/C unit air intake links, air intake No Apply grease or install the links, cranks, and rods securely in
cranks, air intake rods, air intake actuator, their proper positions, repair or replace the air intake
and wire clamp. actuator or wire clamp, then go to Step 8.
— Is there grease on links and cranks?
— Are links, cranks, and rods securely
installed in their proper positions?
— Is wire clamp free of deformation?
• Are the above items normal?
3 VERIFY THAT AIR INTAKE WIRE FROM A/C Yes Go to the next step.
UNIT IS POSITIONED SECURELY AND No Adjust the air intake wire or install securely in the correct
CORRECTLY (IF AVAILABLE) position, then go to Step 8.
• Is the air intake wire securely installed in the
correct position in relation to the A/C unit air
intake links?
4 INSPECT CLIMATE CONTROL UNIT Yes Go to the next step.
• Inspect the climate control unit. No Repair or replace the climate control unit, then go to Step 8.
• Is the climate control unit normal?
5 INSPECT A/C UNIT Yes Remove obstruction, then go to Step 8.
• Is there any foreign material or obstruction in No Go to the next step.
the A/C unit air intake doors?
6 INSPECT A/C UNIT AIR INTAKE DOOR Yes Inspect the air intake door for cracks or damage, then go to
• Is the A/C unit air intake door securely and the next step.
properly installed? No Install the air intake door securely in the proper position,
then go to the next step.
7 INSPECT HEATER LINE Yes Operation is normal. Recheck malfunction symptoms.
• Inspect the heater lines. No If heater piping connections are loose, tighten the
— Is the heater piping free of damage and connections to the specified torque.
cracks? Repair or replace the heater piping, then go to the next step.
— Are the heater piping connections free of
engine coolant leakage?
— Are the heater piping connections
securely tightened?
— Are the heater piping installation points on
A/C unit free of engine coolant leakage?
• Are the above items normal?
8 VERIFY THAT MALFUNCTION SYMPTOM Yes Troubleshooting completed.
OCCURS AFTER REPAIR Explain repairs to customer.
• Does the unit operate in every temperature No Recheck malfunction symptoms, then repeat from Step 1 if
setting? the malfunction recurs.

End Of Sie
NO.6 WINDSHIELD FOGGED
DPE070300000W08
• When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while
doing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If
there is a problem, inspect to make sure connectors, terminals and wiring harness are connected correctly and
undamaged.
6 Windshield fogged.
• A/C compressor does not operate while airflow mode is in DEFROSTER or HEAT/DEF modes.
DESCRIPTION • Air intake mode does not change to FRESH while airflow mode is in DEFROSTER or HEAT/DEF
modes.
• Climate control unit (B+ signal) system malfunction
POSSIBLE • Air intake actuator malfunction
CAUSE • Climate control unit (RECIRCULATE, FRESH signal) system malfunction
• A/C unit air intake door malfunction

07–03–10
 SYMPTOM TROUBLESHOOTING
Diagnostic procedure
STEP INSPECTION ACTION
1 COOL AIR BLOW OUT INSPECTION Yes Go to the next step.
• When both the A/C and fan switch in the No Go to Step 1 of troubleshooting index No.8.
climate control unit are on, does cool air blow
out from the front vent?
2 INSPECT CLIMATE CONTROL UNIT POWER Yes Go to the next step.
SUPPLY FUSE FOR B+ SIGNAL No Inspect for a short to ground on blown fuse circuit.
• Is the climate control unit power supply fuse • Repair or replace if necessary. Install appropriate
for B+ signal normal? amperage fuse.
3 INSPECT AIR INTAKE ACTUATOR Yes Go to the next step.
• Inspect the air intake actuator. No Apply grease or install the link properly and securely,
— Is there grease on the link? remove obstruction, then go to Step 14.
— Is the link securely and properly
positioned?
— Is the link free of obstructions?
• Are the above items normal?
*4 INSPECT WIRING HARNESS BETWEEN Yes Go to the next step.
FUSE BLOCK AND CLIMATE CONTROL UNIT No Repair the wiring harness between the fuse block and
FOR CONTINUITY climate control unit, then go to Step 14.
• Disconnect the climate control unit connector
(24-pin).
• Turn the ignition switch to the ON position.
• Measure the voltage at climate control unit
terminal H (B+ signal).
• Is the voltage approx. 12 V?
*5 INSPECT WIRING HARNESS BETWEEN Yes Go to the next step.
CLIMATE CONTROL UNIT AND GROUND No Repair the wiring harness between the climate control unit
FOR VOLTAGE and ground, then go to Step 14.
• Measure the voltage at climate control unit
terminal V (Ground).
• Is the voltage approx. 0V?
6 VERIFY WHETHER MALFUNCTION IS IN A/C Yes Go to the next step.
UNIT AIR INTAKE DOOR OR ELSEWHERE No Go to Step 12.
• Turn the ignition switch to the LOCK position.
• Connect the climate control unit connector
(24-pin).
• Remove the air intake actuator.
• Turn the ignition switch to the ON position.
• Set the fan switch to 4th position.
• Does the air intake mode (RECIRCULATE,
FRESH) change smoothly when the air
intake link is operated by hand?
7 INSPECT AIR INTAKE ACTUATOR Yes Go to the next step.
• Inspect the air intake actuator. No Replace the air intake actuator, go to Step 14.
(See 07–40–6 AIR INTAKE ACTUATOR
INSPECTION.) 07
• Is it normal?
8 INSPECT AIR INTAKE SELECTOR SWITCH Yes Go to the next step.
AND DEFROSTER SWITCH IN CLIMATE No Replace the climate control unit, then go to Step 14.
CONTROL UNIT
• Measure the voltage at climate control unit
connector (24-pin) terminals O and Q.
• Is it normal?
*9 INSPECT WIRING HARNESS BETWEEN Yes Go to the next step.
CLIMATE CONTROL UNIT AND AIR INTAKE No Repair the wiring harness between the climate control unit
ACTUATOR FOR CONTINUITY and air intake actuator, then go to Step 14.
• Turn the ignition switch to the LOCK position.
• Is there continuity between the following
climate control unit terminals and air intake
actuator terminals?
— Terminal E —Terminal O (FRESH signal)
— Terminal C —Terminal Q (RECIRCULATE
signal)

07–03–11
 SYMPTOM TROUBLESHOOTING
STEP INSPECTION ACTION
*10 INSPECT WIRING HARNESS BETWEEN Yes Repair the wiring harness between the climate control unit
CLIMATE CONTROL UNIT AND AIR INTAKE and air intake actuator, then go to Step 14.
ACTUATOR FOR SHORT TO GROUND No Go to the next step.
• Is there continuity between the following
climate control unit terminals and ground?
— Terminal O (FRESH signal)
— Terminal Q (RECIRCULATE signal)
*11 INSPECT WIRING HARNESS BETWEEN Yes Repair the wiring harness between the climate control unit
CLIMATE CONTROL UNIT AND AIR INTAKE and air intake actuator, then go to Step 14.
ACTUATOR FOR SHORT TO B+ No Replace the climate control unit, then go to Step 14.
• Turn the ignition switch to the ON position
• Measure the voltage at the following climate
control unit terminals.
— Terminal O (FRESH signal)
— Terminal Q (RECIRCULATE signal)
• Is the voltage approx. 12 V?
12 INSPECT A/C UNIT AIR INTAKE DOOR Yes Remove obstruction, then go to Step 14.
• Is there any foreign material or obstruction in No Go to the next step.
the A/C unit air intake door?
13 VERIFY THAT A/C UNIT AIR INTAKE DOOR IS Yes Inspect the air intake door for cracks or damage, then go to
POSITIONED SECURELY AND PROPERLY the next step.
• Is the A/C unit air intake door securely and No Install the air intake door securely in the proper position,
properly positioned? then go to the next step.
14 VERIFY THAT MALFUNCTION SYMPTOM Yes Troubleshooting completed.
OCCURS AFTER REPAIR Explain repairs to customer.
• Does the malfunction disappear? No Recheck malfunction symptoms, then repeat from Step 1 if
the malfunction recurs.

End Of Sie
NO.7 AIR FROM VENTS NOT COLD ENOUGH
DPE070300000W09

7 Air from vents not cold enough.

DESCRIPTION • Magnetic clutch operates but A/C system malfunctions.
• Drive belt malfunction
• A/C unit or condenser malfunction
POSSIBLE • Receiver/drier or expansion valve malfunction (valve closes too much)
CAUSE • Malfunction in refrigerant lines
• A/C compressor system malfunction, insufficient compressor oil
• Over filling of compressor oil, malfunction in expansion valve or A/C unit air mix link system

07–03–12
 SYMPTOM TROUBLESHOOTING
Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT DRIVE BELT Yes Go to the next step.
• Inspect the drive belt. No Adjust or replace the drive belt, then go to Step 20.
(See 01–10A–2 DRIVE BELT INSPECTION (See 01–10A–3 DRIVE BELT REPLACEMENT [L8, LF].)
[L8, LF].) (See 01–10B–3 DRIVE BELT (See 01–10B–3 DRIVE BELT REPLACEMENT [MZR-CD
INSPECTION [MZR-CD (RF Turbo)].) (RF Turbo)].)
• Is it normal?
2 INSPECT REFRIGERANT SYSTEM Yes Operation is normal. (Recheck malfunction symptoms.)
PERFORMANCE No Go to the next step.
• Perform refrigerant system performance test.
(See 07–10–6 REFRIGERANT SYSTEM
PERFORMANCE TEST.)
• Is the operation normal?
3 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN A/C UNIT INTAKE AND CONDENSER No Go to Step 6.
OR ELSEWHERE
• Are the refrigerant high-pressure and low-
pressure values both high?
4 INSPECT A/C UNIT INTAKE Yes Remove obstruction, then go to Step 20. (If air does not
• Is the A/C unit intake clogged? reach the evaporator in the A/C unit, heat exchange does
not occur and refrigerant pressure becomes high.
Therefore, removal of obstruction is necessary.)
No Go to the next step.
5 INSPECT CONDENSER Yes Adjust refrigerant to the specified amount, then go to Step
• Inspect the condenser. 20. (Excessive amount of refrigerant.)
(See 07–11–28 CONDENSER No Replace the condenser, or repair and clean the condenser
INSPECTION.) fins, then go to Step 20.
• Is it normal?
6 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN EXPANSION VALVE, RECEIVER/DRIER No Go to Step 14.
AND REFRIGERANT LINES OR ELSEWHERE
• Are the refrigerant high-pressure and low-
pressure values low?
7 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN EXPANSION VALVE AND RECEIVER/ No Go to Step 10.
DRIER OR ELSEWHERE
• Immediately after the A/C compressor
operates, does the refrigerant high-pressure
value momentarily rise to correct value, then
fall and stay below it? (Is there negative
pressure on low-pressure side?)
8 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN EXPANSION VALVE OR RECEIVER/ No Replace the condenser and vacuum the refrigerant line
DRIER more than 30 min by the vacuum pump, add refrigerant to
• Turn the A/C switch off and let the air the specified level, then go to Step 20. (Since water has
conditioner stop for 10 min. 07
intermixed in the receiver/drier and it is saturated,
• Start the engine. replacement is necessary.)
• Turn the both A/C switch and fan switch on.
• Does the malfunction occur after the A/C
compressor turns on?
9 VERIFY THAT EXPANSION VALVE HEAT- Yes Replace the expansion valve, then go to Step 20. (Since the
SENSING TUBE WITHIN A/C UNIT IS valve closes too much, replacement is necessary.)
POSITIONED SECURELY AND CORRECTLY No Install the heat-sensing tube securely in the proper position,
• Is the expansion valve heat-sensing tube in then go to Step 20.
the A/C unit securely installed in the proper
position?

07–03–13
 SYMPTOM TROUBLESHOOTING
STEP INSPECTION ACTION
10 INSPECT REFRIGERANT LINE Yes Go to the next step.
• Inspect the refrigerant lines. No If the piping or A/C component (s) are damaged or cracked,
— Is the piping free of damage and cracks? replace them.
— Are the piping connections free of oil Then go to Step 20.
grime? (Visual inspection) If there is no damage, go to Step 13.
— Are the piping connections free of gas
leakage?
— Are the piping installation points on the
condenser free of gas leakage?
— Are the piping installation points on the
receiver/drier free of gas leakage?
— Are the piping installation points on the A/
C compressor free of gas leakage?
— Are the piping installation points on the A/
C unit free of gas leakage?
— Perform gas leakage inspection using a
gas leak tester.
• Are the above items normal?
11 INSPECT EVAPORATOR PIPING Yes If the vane makes a noise, add 10 ml {10 cc, 0.34 fl oz} of
CONNECTION IN A/C UNIT FOR GAS compressor oil to the A/C compressor. Verify that the noise
LEAKAGE is no longer heard.
• Are piping the connections for the evaporator Adjust refrigerant to the specified amount, then go to Step
in the A/C unit free of gas leakage? 20.
No If the piping is damaged or cracked, replace it.
Then go to Step 20.
If there is no damage, go to the next step.
12 INSPECT EVAPORATOR PIPING Yes Tighten the connections to the specified torque, adjust both
CONNECTION IN A/C UNIT FOR LOOSE compressor oil and refrigerant to the specified amount, then
• Are the piping connections for the evaporator go to Step 20.
in the A/C unit loose? No If the vane makes a noise, add 10 ml {10 cc, 0.34 fl oz} of
compressor oil to the A/C compressor. Verify that the noise
is no longer heard.
Replace the O-ring on piping, adjust refrigerant to the
specified amount, then go to Step 20.
13 INSPECT PIPING CONNECTION FOR LOOSE Yes Tighten the connections to the specified torque, adjust both
• Are the piping connections loose? compressor oil and refrigerant to the specified amount, then
go to Step 20.
No If the vane makes a noise, add 10 ml {10 cc, 0.34 fl oz} of
compressor oil to the A/C compressor. Verify that the noise
is no longer heard.
Replace O-ring on piping, adjust refrigerant to specified
amount, then go to Step 20.
14 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to the next step. (Pressure hardly increases.)
IS IN EXPANSION VALVE, AIR MIX No Go to Step 17.
ACTUATOR AND COMPRESSOR OIL OR
ELSEWHERE
• Does the refrigerant high-pressure value
hardly increase?
15 INSPECT TO SEE WHETHER MALFUNCTION Yes Return to Step 3.
IS IN COMPRESSOR OIL AMOUNT AND A/C No Go to the next step.
COMPRESSOR OR ELSEWHERE
• When the engine is racing, does the high-
pressure value increase?
16 INSPECT TO SEE WHETHER MALFUNCTION Yes Troubleshooting completed. (Explain to customer that cause
IS IN COMPRESSOR OIL AMOUNT OR A/C was insufficient compressor oil.)
COMPRESSOR No Replace the A/C compressor, then go to Step 20. (Cause is
• After compressor oil is replenished each 10 defective A/C compressor.)
ml {10 cc, 0.34 fl oz}, does high-pressure
value increase?
17 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to Step 19.
IS IN EXPANSION VALVE OR ELSEWHERE No Go to the next step.
• Is only refrigerant low-pressure value high?

07–03–14
 SYMPTOM TROUBLESHOOTING
STEP INSPECTION ACTION
18 VERIFY THAT AIR MIX IS INSTALLED Yes Set the fan switch to 4th position.
SECURELY AND PROPERLY Turn the A/C switch on.
• Are the A/C unit air mix links, air mix cranks, Set FRESH mode.
and air mix rods securely and properly Set temperature control to MAX COLD.
installed? Set VENT mode.
(1)Start and run the engine at 1,500 rpm for 10 min.
(2)Run the engine at idle for 1 min.
(3)Within 12 s, idle → 4,000 rpm → idle. Perform cycle 5
times.
(4) Run the engine at idle for 30 s.
(5)Drain the compressor oil completely from the A/C
compressor and verify the amount.
• If there is approx. 90 ml {90 cc, 3.0 fl oz} of
compressor oil, go to Step 20.
• If there is more than 90 ml {90 cc, 3.0 fl oz} of
compressor oil, remove surplus oil and fill the A/C
compressor with 90 ml {90 cc, 3.0 fl oz} of
compressor oil. Repeat Steps (1) to (5).
(Cause is excessive amount of compressor oil.)
No Repair or install the links, cranks and rods securely in the
proper position, then go to Step 20.
19 VERIFY THAT EXPANSION VALVE HEAT- Yes Replace the expansion valve, then go to the next step.
SENSING TUBE WITHIN A/C UNIT IS (Since the valve opens too much, replacement is
POSITIONED SECURELY AND CORRECTLY necessary.)
• Is the expansion valve heat-sensing tube in No Install the heat-sensing tube securely in the proper position,
the A/C unit securely installed in the proper then go to the next step.
position?
20 VERIFY THAT MALFUNCTION SYMPTOM Yes Troubleshooting completed.
OCCURS AFTER REPAIR Explain repairs to customer.
• Does cool air blow out? (Are results of No Recheck malfunction symptoms, then repeat from Step 1 if
refrigerant system performance test the malfunction recurs.
normal?)

End Of Sie
NO.8 NO COOL AIR
DPE070300000W10

8 No cool air
DESCRIPTION • Magnetic clutch does not operate.
• Malfunction in PCM A/C cut control system
• Malfunction in climate control unit
• Malfunction in refrigerant pressure switch
• Malfunction in PCM (A/C signal)
POSSIBLE • Malfunction in PCM (IG1 signal)
CAUSE • Malfunction in A/C compressor
• Malfunction in A/C relay
• Malfunction in evaporator temperature sensor 07
• Malfunction in BCM unit
• Malfunction in CAN communication

• When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while
performing the inspection to discover whether poor contact points are the cause of any intermittent
malfunctions. If there is a problem, check to make sure connectors, terminals and wiring harnesses are
connected correctly and undamaged.

07–03–15
 SYMPTOM TROUBLESHOOTING
Diagnostic procedure
STEP INSPECTION ACTION
1 INSPECT AIR BLOW OUT Yes Go to the next step.
• Does air blow out? No Go to Step 1 of troubleshooting indexes No.1 and 2.
2 INSPECT A/C COMPRESSOR OPERATION Yes Go to Step 1 of troubleshooting index No.7.
• Start engine. No Go to the next step.
• Turn A/C switch and fan switch on.
• Does A/C compressor operate?
3 INSPECT FOR DTC IN PCM Yes Go to appropriate inspection procedure.
• Inspect for DTCs related to the PCM on- No (Auto A/C)
board diagnostic system. Go to the next step.
• Are any DTCs displayed? (Manual A/C)
Go to Step 5.
4 COMFIRM DTC U0073, U0140, U0166 AND Yes Network communication, for related system is malfunction.
U2516 USING WDS OR EQUIVALENT Go to appropriate inspection procedure.
• Retrieve DTC from EATC and BCM. No Go to Step 6.
• Are DTCs (U0073, U0140, U0166, U2516)
retrieved?
5 INSPECT TO SEE WHETHER MALFUNCTION Yes Replace climate control unit, then go to Step 18.
IS IN CLIMATE CONTROL UNIT OR No Release short, then go to the next step.
ELSEWHERE
• Does cool air blow out when terminal E of
climate control unit connector (24-pin, A/C
signal) is grounded?
6* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to Step 8.
IS IN A/C SIGNAL CIRCUIT (BETWEEN No Go to the next step.
REFRIGERANT PRESSURE SWITCH AND
PCM) OR ELSEWHERE
• Test voltage at following terminal of
refrigerant pressure switch.
— Terminal B (A/C signal)
• Is voltage approx. 12 V?
7* INSPECT TO SEE WHETHER MALFUNCTION Yes Repair wiring harness between PCM and refrigerant
(LACK OF CONTINUITY) IS IN WIRING pressure switch, then go to Step 18.
HARNESS (BETWEEN REFRIGERANT No Inspect PCM, then go to Step 18.
PRESSURE SWITCH AND PCM) OR PCM
• Test voltage at A/C signal terminal of PCM.
• Is voltage approx. 12 V?
8 INSPECT TO SEE WHETHER MALFUNCTION Yes Go to Step 10.
IS IN REFRIGERANT PRESSURE SWITCH, No (Auto A/C)
REFRIGERANT AMOUNT, OR ELSEWHERE Go to Step 11.
• Does cool air blow out when terminals A and (Manual A/C)
B of refrigerant pressure switch connector Go to the next step.
are shorted?
9* INSPECT TO SEE WHETHER MALFUNCTION Yes Go to Step 10.
IS IN WIRING HARNESS (BETWEEN No Repair wiring harness between refrigerant pressure switch
REFRIGERANT PRESSURE SWITCH AND and climate control unit, then go to Step 18.
CLIMATE CONTROL UNIT) OR ELSEWHERE
• Test voltage at following terminal of climate
control unit.
— Terminal E (24-pin, A/C signal)
• Is voltage approx. 12 V?
10 INSPECT TO SEE WHETHER MALFUNCTION Yes If refrigerant amount is empty, replace condenser, vaccum
IS IN REFRIGERANT PRESSURE SWITCH OR refrigerant line more than 30 min by vacuum pump, and
REFRIGERANT AMOUNT add refrigerant to specified level, then go to Step 18.
• Inspect refrigerant pressure switch. No Replace refrigerant pressure switch, then go to Step 18.
• Is it okay?
11 INSPECT TO SEE WHETHER MALFUNCTION Yes Release short, then go to the next step.
(LACK OF CONTINUITY) IS IN A/C CONTROL No Go to Step 13.
SIGNAL CIRCUIT (BETWEEN A/C RELAY
AND PCM) OR ELSEWHERE
• Does cool air blow out when terminal E of A/
C relay connector (A/C control signal) is
grounded?

07–03–16
 SYMPTOM TROUBLESHOOTING
STEP INSPECTION ACTION
12* INSPECT TO SEE WHETHER MALFUNCTION Yes Inspect PCM, then go to Step 18.
(LACK OF CONTINUITY) IS IN PCM OR No Repair wiring harness between A/C relay and PCM, then go
WIRING HARNESS (BETWEEN A/C RELAY to Step 18.
AND PCM)
• Test voltage at the A/C relay control signal
terminal of PCM.
• Is voltage approx. 12 V?
13* INSPECT TO SEE WHETHER MALFUNCTION Yes Inspect magnetic clutch, then go to Step 18.
IS IN MAGNETIC CLUTCH OR ELSEWHERE No Go to the next step.
• Test voltage at the following terminal of
magnetic clutch thermal protector.
— Terminal A (magnetic clutch operation
signal)
• Is voltage approx. 12 V?
14 INSPECT FUSE Yes Go to the next step.
• Are A/C relay power supply fuses okay? No Replace fuse, then go to Step 18. If fuse burns out
immediately, go to the next step.
15 INSPECT WIRING HARNESS BETWEEN Yes Go to the next step.
FUSE BLOCK AND A/C RELAY FOR LACK OF No Repair wiring harness between fuse block and A/C relay,
CONTINUITY then go to Step 18.
• Test voltages at following terminals of A/C
relay.
— Terminal A (A/C relay control signal)
— Terminal C (A/C control signal)
• Are voltages approx. 12 V?
16 INSPECT TO SEE WHETHER MALFUNCTION Yes Inspect wiring harness between A/C relay and magnetic
IS IN A/C RELAY OR WIRING HARNESS clutch.
(BETWEEN A/C RELAY AND MAGNETIC • If above wiring harness is OK, go to the next step.
CLUTCH) AND EVAPORATOR • If above wiring harness malfunctions, repair wiring
TEMPERATURE SENSOR harness, then go to Step 18.
• Test voltage at the following terminal of A/C No Replace A/C relay, then go to Step 18.
relay.
— Terminal D (magnetic clutch operation
signal)
• Is voltage approx. 12 V?
17 INSPECT EVAPORATOR TEMPERATURE Yes Go to the next step.
SENSOR No Replace evaporator temperature sensor, then go to the next
• Inspect evaporator temperature sensor. step.
• Is it okay?
18 CONFIRM THAT MALFUNCTION SYMPTOMS Yes Troubleshooting completed. Explain repairs to customer.
DO NOT RECUR AFTER REPAIR No Recheck malfunction symptoms, then repeat from Step 1 if
• Does cool air blow out? (Are the results of malfunction recurs.
refrigerant system performance test okay?)

End Of Sie
NO.9 NOISE WHILE OPERATING A/C SYSTEM 07
DPE070300000W11

9 Noise while operating A/C system.

DESCRIPTION • Noise from magnetic clutch, A/C compressor, hose or refrigerant line.
• Magnetic clutch operation noise
POSSIBLE • A/C compressor vane noise
CAUSE • A/C compressor slippage noise
• Hose or refrigerant line interference noise

07–03–17
 SYMPTOM TROUBLESHOOTING
Diagnostic procedure
STEP INSPECTION ACTION
1 CHECK A/C COMPRESSOR VANE NOISE Yes Go to Step 5.
• Is there a jingling, popping, beeping, or No Go to the next step.
buzzing sound (A/C compressor vane
noise)?
2 INSPECT A/C COMPRESSOR SLIPPAGE Yes Go to Step 14.
NOISE No Go to the next step.
• Is there a squeaking or whirling sound (A/C
compressor slippage noise)?
3 INSPECT A/C COMPRESSOR Yes Go to Step 18.
INTERFERENCE NOISE No Go to the next step.
• Is there a rattling or vibrating sound
(interference noise)?
4 INSPECT MAGNETIC CLUTCH OPERATION Yes Adjust clearance between pressure plate of magnetic clutch
NOISE and A/C compressor pulley, then go to Step 19.
• Is there a clicking sound (magnetic clutch (See 07–40–26 MAGNETIC CLUTCH ADJUSTMENT [LF,
operation noise)? L8].) (See 07–40–26 MAGNETIC CLUTCH ADJUSTMENT
[MZR-CD (RF Turbo)].)
No Condition is normal. (Recheck malfunction symptoms.)
5 INSPECT A/C COMPRESSOR NOISE TIME Yes Go to the next step.
• Is noise heard continuously for more than 3 No Condition is normal. (Noise occurs for 2—3 s immediately
s after A/C compressor comes on? after A/C compressor turns on.)
6 INSPECT IDLE SPEED Yes Go to the next step.
• Inspect idle speed. No Follow the repair instruction described in section 01, then go
(See 01–10A–30 ENGINE TUNE-UP [L8, to Step 19.
LF].) (See 01–10B–30 ENGINE TUNE-UP
[MZR-CD (RF Turbo)].)
• Is it okay?
7 INSPECT REFRIGERANT AMOUNT Yes Go to Step 10.
• Inspect refrigerant amount. No Go to the next step.
• Is it okay?
8 INSPECT REFRIGERANT LINES Yes Go to the next step.
• Inspect refrigerant lines. No If piping or A/C component(s) is damaged or cracked,
— Is piping free of damage and cracks? replace then go to Step 19.
— Are piping connections free of oil grime? If there is gas leakage, repair or replace connection and
(Visual inspection) replace condenser*, then go to Step 19.
— Are piping connections free of gas
leakage?
— Are piping installation points on
condenser free of gas leakage?
— Are piping installation points on receiver/
drier free of gas leakage?
— Are piping installation points on A/C
compressor free of gas leakage?
— Are piping installation points on A/C unit
free of gas leakage
— Perform gas leak inspection using gas
leak tester.
• Are above items okay?
9 INSPECT EVAPORATOR PIPING Yes Adjust refrigerant amount to specified level, then go to Step
CONNECTIONS IN A/C UNIT FOR GAS 19.
LEAKAGE No If piping is damaged or cracked, replace then go to Step 19.
• Are piping connections for evaporator in A/C If there is gas leakage, repair or replace connection and
unit free of gas leakage? replace condenser*, then go to Step 19.
10 CHECK TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN COMPRESSOR OIL OR ELSEWHERE No Troubleshooting completed.
• Add 20 ml {20 cc, 0.8 fl oz} of compressor Explain repair to customer.
oil.
• Is noise heard when racing engine?
11 CHECK TO SEE WHETHER MALFUNCTION Yes Go to the next step.
IS IN A/C COMPRESSOR OR ELSEWHERE No Replace A/C compressor, then go to Step 19.
• Drain compressor oil.
• Is it contaminated with metal particles?

07–03–18
 SYMPTOM TROUBLESHOOTING
STEP INSPECTION ACTION
12 CHECK TO SEE WHETHER MALFUNCTION Yes Replace entire A/C system (excluding heater), then go to
IS SOMEWHERE IN A/C SYSTEM OR Step 19.
ELSEWHERE No Go to the next step.
• Is compressor oil whitish and mixed with
water?
13 INSPECT A/C COMPRESSOR OIL Yes Replace A/C compressor and condenser, then go to Step
• Is compressor oil darker than normal and 19. (Since A/C compressor may be worn and receiver/drier
contaminated with aluminum chips? may be clogged, replacement of receiver/drier is necessary.)
No Condition is normal. Recheck malfunction symptoms.
14 CHECK TO SEE WHETHER MALFUNCTION Yes Replace A/C compressor, then go to Step 19. (A/C
IS IN A/C COMPRESSOR OR ELSEWHERE compressor discharge valve left open)
• Is noise heard immediately after A/C No Go to the next step.
compressor is stopped?
15 INSPECT DRIVE BELT Yes Go to the next step.
• Inspect drive belt. No Adjust or replace drive belt, then go to Step 19.
(See 01–10A–2 DRIVE BELT INSPECTION
[L8, LF].) (See 01–10B–3 DRIVE BELT
INSPECTION [MZR-CD (RF Turbo)].)
• Is it okay?
16 INSPECT DRIVE BELT CONDITION Yes Remove obstruction, remove oil, or replace drive belt, then
• Is drive belt worn? go to Step 19.
• Does it have foreign material imbedded in it, No Go to the next step.
or have oil on it?
17 INSPECT MAGNETIC CLUTCH Yes Replace A/C compressor (excluding pressure plate, A/C
• Inspect magnetic clutch. compressor pulley, and stator), then go to Step 19.
(See 07–40–27 MAGNETIC CLUTCH No Replace magnetic clutch, then go to Step 19.
INSPECTION [LF, L8].) (See 07–40–28
MAGNETIC CLUTCH INSPECTION [MZR-
CD (RF Turbo)].)
• Is it okay?
18 CHECK TO SEE WHETHER MALFUNCTION Yes Visually inspect A/C compressor, replace appropriate parts
IS IN A/C COMPRESSOR OR REFRIGERANT if necessary, then go to the next step.
LINES No If noise is due to refrigerant lines, repair detached or
• Is noise emitted from A/C compressor? missing clips, tighten loose bolts, then go to the next step.
19 VERIFY THAT MALFUNCTION SYMPTOM Yes Troubleshooting completed.
OCCURS AFTER REPAIR Explain repairs to customer.
• Has A/C compressor noise stopped? No Recheck malfunction symptoms, then repeat from Step 1 if
malfunction recurs.

* : If there is gas leakage, air enters into the A/C system. The desiccant within the receiver/drier absorbs the
moisture from the air and becomes saturated. If the A/C system is used in this condition, the inside of the A/C
compressor will begin to rust due to this moisture, which may cause lock up or noise to occur. Therefore,
replacement of the receiver/drier is necessary.
07
End Of Sie

07–03–19
 REFRIGERANT SYSTEM

07–10 REFRIGERANT SYSTEM

REFRIGERANT SYSTEM SERVICE REFRIGERANT CHARGING . . . . . . . . . . 07–10–2
WARNINGS . . . . . . . . . . . . . . . . . . . . . . 07–10–1 REFRIGERANT PRESSURE CHECK . . . 07–10–5
REFRIGERANT SYSTEM SERVICE REFRIGERANT SYSTEM PERFORMANCE
CAUTIONS . . . . . . . . . . . . . . . . . . . . . . 07–10–1 TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 07–10–6
REFRIGERANT SYSTEM GENERAL REFRIGERANT RECOVERY . . . . . . . . . . 07–10–7
PROCEDURES . . . . . . . . . . . . . . . . . . . 07–10–2

End of Toc
REFRIGERANT SYSTEM SERVICE WARNINGS
DPE071000000W01
Handling Refrigerant
• Avoid breathing air conditioning refrigerant or lubricant vapor. Exposure may irritate eyes, nose and
throat. Also, due to environmental concerns, we urge use of recovery/recycling/recharging equipment
when draining R-134a from the air conditioning system. If accidental system discharge occurs,
ventilate work area before resuming service.
• Do not perform pressure test or leak test for R-134a service equipment and/or vehicle air conditioning
system using compressed air. Some mixtures of air and R-134a have been shown to be combustible at
elevated pressures. These mixtures, if ignited, may cause injury or property damage. Additional health
and safety information may be obtained from refrigerant manufacturers.
• Do not allow the refrigerant to leak near fire or any kind of heat. A poisonous gas may be generated if
the refrigerant gas contacts fire or heat such as from cigarettes and heaters. When carrying out any
operation that can cause refrigerant leakage, extinguish or remove the above-mentioned heat sources
and maintain adequate ventilation.
• Handling liquid refrigerant is dangerous. A drop of it on the skin can result in localized frostbite. When
handling the refrigerant, wear gloves and safety goggles. If refrigerant splashes into the eyes,
immediately wash them with clean water and consult a doctor.

Storing Refrigerant
• The refrigerant container is highly pressurized. If it is subjected to high heat, it could explode,
scattering metal fragments and liquid refrigerant that can seriously injure you. Store the refrigerant at
temperatures below 40 °C {104 °F}.
End Of Sie
REFRIGERANT SYSTEM SERVICE CAUTIONS
DPE071000000W02
Handling Insufficient Refrigerant Level
• If an insufficient refrigerant level is detected at troubleshooting, do not charge (add) the refrigerant.
Because an accurate amount of refrigerant cannot be determined from the pressure indicated on the
manifold gauge, never charge the refrigerant. If there is too much or too little refrigerant from the
refilling, there may be secondary problems such as damage to the refrigerant cycle parts, or a decrease
of cooling performance. Therefore, if it is determined that the refrigerant level is insufficient,
completely remove refrigerant from the refrigerant cycle and refill with refrigerant to the specified
amount.

Handling Compressor Oil 07

• Use only ATMOS GU10 compressor oil for this vehicle. Using a PAG oil other than ATMOS GU10
compressor oil can damage the A/C compressor.
• Do not spill ATMOS GU10 compressor oil on the vehicle. A drop of compressor oil on the vehicle
surface can eat away at the paint. If oil gets on the vehicle, wipe it off immediately.
• ATMOS GU10 compressor oil (PAG oil) has a higher moisture absorption efficiency than the previously
used mineral oil. If moisture mixes with the compressor oil, the refrigerant system could be damaged.
Therefore, install caps immediately after using the compressor oil or removing refrigerant system parts
to prevent moisture absorption.

07–10–1
 REFRIGERANT SYSTEM
• If the refrigerant gas is completely discharged ATMOS GU10 COMPRESSOR OIL (PAG OIL)
from the system for reasons such as a

MOISTURE ABSORPTION
malfunction during A/C operation, repair or
replace the malfunctioning part, charge the
refrigerant to the specified amount and always
add 60 ml {60 cc, 2.03 fl oz} of compressor. If
the compressor oil is not adequately
replenished, the A/C compressor may quickly
deteriorate, abnormal noise may develop, MINERAL OIL
cooling performance may be affected or, in the
worst case, the A/C compressor may seize. 0
TIME
End Of Sie B3E0710W001

REFRIGERANT SYSTEM GENERAL PROCEDURES

DPE071000000W04
1. Fully close the valves of the SST (49 C061 001A).
2. Connect the SSTs (49 C061 002, 49 C061 003)
to the high- and low-pressure side joints of the 49 C061 001A
SST (49 C061 001A).
3. Connect the SSTs (49 C061 006A, 49 C061 007) 49 C061 002
to the ends of the SSTs (49 C061 002, 49 C061
003). 49 C061 003 49 C061 006A
4. Connect the SSTs (49 C061 006A, 49 C061 007) CAP
to the charging valves. 49 C061 007
End Of Sie CAP CHARGING
VALVE OF
CHARGING VALVE OF HIGH-PRESSURE
LOW-PRESSURE SIDE SIDE
BHE0710W001

REFRIGERANT CHARGING
DPE071078834W01

Caution
• Do not exceed the specification when charging the system with refrigerant. Doing so will decrease
the efficiency of the air conditioner or damage the refrigeration cycle parts.

Charging Recycled R-134a Refrigerant

1. Connect an R-134a recovery/recycling/recharging device to the vehicle and follow the device manufacturer's
instructions.

Charging Preparation
1. Install the SSTs (49 C061 0A0B).
2. Connect the tap pin side of the SST (49 C061 004) to the air purge valve of the SST (49 C061 001A).
3. Connect the SST (49 C061 005) to the center joint of the SST (49 C061 001A).
4. Connect the SST (49 C061 005) to the vacuum pump.
5. Connect the SST (49 C061 004) to the refrigerant tank.
6. Place the refrigerant tank on the scale.

Regular amount of refrigerant (approx. quantity)

500 g {17.65 oz}

TAP PIN SIDE AIR PURGE VALVE

49 C061 001A

49 C061 004
49 C061 005

REFRIGERANT
TANK

SCALE

VACUUM PUMP
DPE710ZW1104

Evacuation
1. Open all the valves of the SST (49 C061 001A).

07–10–2
 REFRIGERANT SYSTEM
Caution
• Close the SST (49 C061 001A) valve immediately after stopping the vacuum pump. If the valve is
left open, the vacuum pump oil will flow back into the refrigeration cycle and cause a decrease in
the efficiency of the air conditioner.

2. Start the vacuum pump and let it operate for 15

49 C061 001A
min.

CLOSE

DPE710ZW1105

3. Verify that high- and low-pressure side readings

of the SST (49 C061 001A) are at –101 kPa {–
760 mmHg, –29.9 inHg}. Close each valve of the 49 C061 001A
SST (49 C061 001A).

BHE0710W002

Airtightness Check
1. Stop the vacuum pump and wait for 5 min.
2. Check the high- and low-pressure side readings of the SST (49 C061 001A).
• If the reading has changed, inspect for leakage and go to Evacuation. (See 07–10–2 Evacuation.)
• If the reading has not changed, go to Charging New R-134a Refrigerant. (See 07–10–3 Charging New R-
134a Refrigerant.)

Charging New R-134a Refrigerant

1. Open the valve of the refrigerant tank.
2. Weigh the refrigerant tank to charge the suitable amount of refrigerant.

Warning
• If the refrigerant system is charged with a large amount of refrigerant when inspecting for gas 07
leakage, and if any leakage should occur, the refrigerant will be released into the atmosphere. In
order to prevent the accidental release of refrigerant which can destroy the ozone layer in the
stratosphere, follow the proper procedures and charge with only a small amount of refrigerant
when inspecting for gas leakage.
• If charging the system with refrigerant using service cans, running the engine with the high-
pressure side valve open is dangerous. Pressure within the service cans will increase and the
cans could explode, scattering metal fragments and liquid refrigerant that can seriously injure
you. Therefore, do not open the high-pressure side valve while the engine is running.

Caution
• Always being charging of refrigerant from the high-pressure side. If changing is begun from the
low-pressure side, the vanes of the A/C compressor will not be released and abnormal noise may
result.

07–10–3
 REFRIGERANT SYSTEM
3. Open the high-pressure side valve of the SST (49
C061 001A). 49 C061 001A

OPEN

DPE710ZW1106

4. When the low-pressure side reading increases to

0.098 MPa {1.0 kgf/cm2, 14 psi}, close the 49 C061 001A
high-pressure side valve of the SST (49 C061
001A).
5. Inspect for leakage from the cooler pipe/hose
connections using the SST (49 C061 013).
• If there is no leakage, go to Step 7.
• If leakage is found at a loose joint, tighten the
joint, then go to the next step.
6. Inspect for leakage again.
• If there is no leakage after tightening the joint,
go to the next step.
• If there is still a leakage at the same joint,
B3E0710W003

discharge the refrigerant and then repair the

joint. Repeat the charging procedure from evacuation.

Warning
• If charging the system with refrigerant using service cans, running the engine with the
high-pressure side valve open is dangerous. Pressure within the service cans will increase and
the cans could explode, scattering metal fragments and liquid refrigerant that can seriously injure
you. Therefore, do not open the high-pressure side valve while the engine is running.

7. Open the high-pressure side valve of the SST (49

C061 001A) and charge with refrigerant until the 49 C061 001A
weight of refrigerant tank has decreased 250 g
{8.83 oz} from the amount in Step 2.

OPEN

DPE710ZW1106

8. Close the low-pressure side valve of the SST (49

C061 001A).
49 C061 001A
Warning
• If charging the system with refrigerant
using service cans, running the engine
with the high-pressure side valve open is
dangerous. Pressure within the service
cans will increase and the cans could
explode, scattering metal fragments and
liquid refrigerant that can seriously injure
you. Therefore, do not open the
BHE0710W002
high-pressure side valve while the engine
is running.

9. Start the engine and actuate the A/C compressor.

07–10–4
 REFRIGERANT SYSTEM
10. Open the low-pressure side valve of the SST (49
C061 001A) and charge with refrigerant until the 49 C061 001A
weight of the refrigerant tank has decreased
regular amount from the amount in Step 2.
11. Close the low-pressure side valve of the SST (49
C061 001A) and the valve of the refrigerant tank. OPEN
12. Stop the engine and A/C compressor.

DPE710ZW1107

Leak Test
1. Inspect for leakage using the SST (49 C061 013).
• If there is no leakage, go to Step 3.
• If leakage is found at a loose joint, tighten the joint, then go to the next step.
2. Inspect for leakage again.
• If there is no leakage after tightening the joint, go to the next step.
• If there is still leakage at the same joint, discharge the refrigerant and then repair the joint. Repeat the
charging procedure from evacuation.
3. Disconnect the SSTs (49 C061 006A, 49 C061 007) from the charging valves.
4. Install the caps to the charging valves.
End Of Sie
49 C061 007
49 C061 006A

CAP
CAP

B3E0710W002

REFRIGERANT PRESSURE CHECK

DPE071078834W03
1. Install the SSTs (49 C061 0A0B). (See 07–10–2 REFRIGERANT SYSTEM GENERAL PROCEDURES.)
2. Start the engine and after it is warmed up, run it at a constant 1,500 rpm.
3. Set the fan speed MAX HI.
4. Turn the A/C switch on.
5. Set to RECIRCULATE mode.
6. Set the temperature control to MAX COLD.
7. Set to VENT mode.
8. Close all the doors and all the windows. 07
9. Measure the ambient temperature and high- and low- pressure side reading of the SST (49 C061 001A).
10. Verify that the intersection of the pressure reading of the SST (49 C061 001A) and ambient temperature is in
the shaded zone.
• If there is any malfunction, inspect the refrigerant system according to the troubleshooting chart.

07–10–5
 REFRIGERANT SYSTEM
LF, L8
MPa
{kgf/cm2, psi}

2.0

PRESSURE READING OF MANIHOLD GAUGE

{20, 284}

1.5
{15, 218}

0.15
{1.5, 22}

0.10
{1.0, 14}

15 20 25 30 35 40
{39} {68} {77} {86} {95} {104}
AMBIENT TEMPERATURE °C {°F}
DPE710ZW1108
MZR-CD (RF Turbo)
End Of Sie MPa
{kgf/cm2, psi}

2.0
{20, 284}
PRESSURE READING OF MANIHOLD GAUGE

1.5
{15, 218}

0.15
{1.5, 22}

0.10
{1.0, 14}

15 20 25 30 35 40
{39} {68} {77} {86} {95} {104}
AMBIENT TEMPERATURE °C {°F}
DPE710ZW1109

REFRIGERANT SYSTEM PERFORMANCE TEST

DPE071078834W05
1. Inspect the refrigerant pressure. (See 07–10–5 REFRIGERANT PRESSURE CHECK.)
2. Place a dry-bulb thermometer in the driver-side
center ventilator outlet.
DRY-BULB THERMOMETER
3. Start the engine and after it is warmed up, run it at
a constant 1,500 rpm.
4. Set the fan speed to MAX HI.
5. Turn the A/C switch on.
6. Set to RECIRCULATE mode.
7. Set the temperature control to MAX COLD.
8. Set to VENT mode.
9. Close all the doors and windows.
10. Wait until the air conditioner output temperature
stabilizes.
DPE710ZW1101

07–10–6
 REFRIGERANT SYSTEM
Stabilized condition
• The A/C compressor repeatedly turns on and off at regular intervals.
11. After the blower air is stabilized, read the dry-bulb thermometer.
12. Verify the ambient temperature.
13. Verify that the temperature reading is in the shaded zone.
• If the there is any malfunction, inspect the refrigerant system according to the troubleshooting chart.
LF, L8
°C {°F}
14 {57}

CENTER VENTILATOR
10 {50}

TEMPERATURE
6 {43}

2 {36}
15 20 25 30 35 40
{39} {68} {77} {86} {95} {95}
AMBIENT TEMPERATURE °C {°F}
DPE710ZW1110

MZR-CD (RF Turbo)

End Of Sie °C {°F}
14 {57}
CENTER VENTILATOR

10 {50}
TEMPERATURE

6 {43}

2 {36}
15 20 25 30 35 40
{39} {68} {77} {86} {95} {95}
AMBIENT TEMPERATURE °C {°F}
DPE710ZW1111

REFRIGERANT RECOVERY
DPE071078834W04
1. Connect an R-134a recovery/recycling/recharging device to the vehicle and follow the device manufacturer's
instructions.
End Of Sie

07

07–10–7
 BASIC SYSTEM

07–11 BASIC SYSTEM

HVAC BASIC SYSTEM LOCATION HEATER CORE INSPECTION . . . . . . . . . 07–11–22
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . 07–11–1 AIRFLOW MODE MAIN LINK REMOVAL/
A/C UNIT REMOVAL/INSTALLATION . . 07–11–4 INSTALLATION. . . . . . . . . . . . . . . . . . . . 07–11–23
A/C UNIT DISASSEMBLY/ASSEMBLY [FULL-AUTO REAR HEAT DUCT REMOVAL/
AIR CONDITIONER (LF, L8)] . . . . . . . . 07–11–7 INSTALLATION. . . . . . . . . . . . . . . . . . . . 07–11–24
A/C UNIT DISASSEMBLY/ASSEMBLY [FULL-AUTO A/C COMPRESSOR REMOVAL/
AIR CONDITIONER (MZR-CD INSTALLATION [LF, L8] . . . . . . . . . . . . . 07–11–25
(RF Turbo))]. . . . . . . . . . . . . . . . . . . . . . 07–11–10 A/C COMPRESSOR REMOVAL/INSTALLATION
A/C UNIT DISASSEMBLY/ASSEMBLY [MANUAL [MZR-CD (RF Turbo)]. . . . . . . . . . . . . . . 07–11–27
AIR CONDITIONER (LF, L8)] . . . . . . . . 07–11–14 CONDENSER REMOVAL/
A/C UNIT DISASSEMBLY/ASSEMBLY [MANUAL INSTALLATION. . . . . . . . . . . . . . . . . . . . 07–11–27
AIR CONDITIONER (MZR-CD CONDENSER INSPECTION . . . . . . . . . . 07–11–28
(RF Turbo))]. . . . . . . . . . . . . . . . . . . . . . 07–11–17 RECEIVER/DRIER REMOVAL/
AIR FILTER REMOVAL/ INSTALLATION. . . . . . . . . . . . . . . . . . . . 07–11–28
INSTALLATION . . . . . . . . . . . . . . . . . . . 07–11–20 REFRIGERANT LINES REMOVAL/
AIR FILTER INSPECTION. . . . . . . . . . . . 07–11–21 INSTALLATION [LF, L8] . . . . . . . . . . . . . 07–11–29
EXPANSION VALVE REMOVAL/ REFRIGERANT LINES REMOVAL/INSTALLATION
INSTALLATION . . . . . . . . . . . . . . . . . . . 07–11–21 [MZR-CD (RF Turbo)]. . . . . . . . . . . . . . . 07–11–32
EVAPORATOR INSPECTION . . . . . . . . . 07–11–22

End of Toc
HVAC BASIC SYSTEM LOCATION INDEX
DPE071100000W01
L.H.D.

LF, L8
8
1

4
07

DPE711ZW1001

07–11–1
 BASIC SYSTEM

MZR-CD (RF Turbo)

8 1

6
2

DPE711ZW1002

07–11–2
 BASIC SYSTEM
R.H.D.

LF, L8

8 1

7 4

6 2

DPE711ZW1110

07

07–11–3
 BASIC SYSTEM

MZR-CD (RF Turbo)

8
1

5
4

2
DPE711ZW1003

1 A/C unit 3 Airflow mode main link

(See 07–11–4 A/C UNIT REMOVAL/ (See 07–11–23 AIRFLOW MODE MAIN LINK
INSTALLATION.) REMOVAL/INSTALLATION.)
(See 07–11–7 A/C UNIT DISASSEMBLY/ 4 Rear heat duct
ASSEMBLY [FULL-AUTO AIR CONDITIONER (LF, (See 07–11–24 REAR HEAT DUCT REMOVAL/
L8)].) INSTALLATION.)
(See 07–11–10 A/C UNIT DISASSEMBLY/
ASSEMBLY [FULL-AUTO AIR CONDITIONER 5 A/C compressor
(MZR-CD (RF Turbo))].) (See 07–11–25 A/C COMPRESSOR REMOVAL/
(See 07–11–14 A/C UNIT DISASSEMBLY/ INSTALLATION [LF, L8].)
ASSEMBLY [MANUAL AIR CONDITIONER (LF, (See 07–11–27 A/C COMPRESSOR REMOVAL/
L8)].) INSTALLATION [MZR-CD (RF Turbo)].)
(See 07–11–17 A/C UNIT DISASSEMBLY/ 6 Condenser
ASSEMBLY [MANUAL AIR CONDITIONER (MZR- (See 07–11–27 CONDENSER REMOVAL/
CD (RF Turbo))].) INSTALLATION.)
(See 07–11–21 EXPANSION VALVE REMOVAL/ (See 07–11–28 CONDENSER INSPECTION.)
INSTALLATION.) 7 Heater hose
(See 07–11–22 EVAPORATOR INSPECTION.) 8 Refrigerant line
(See 07–11–22 HEATER CORE INSPECTION.) (See 07–11–29 REFRIGERANT LINES REMOVAL/
2 Air filter INSTALLATION [LF, L8].)
(See 07–11–20 AIR FILTER REMOVAL/ (See 07–11–32 REFRIGERANT LINES REMOVAL/
INSTALLATION.) INSTALLATION [MZR-CD (RF Turbo)].)
(See 07–11–21 AIR FILTER INSPECTION.)

End Of Sie
A/C UNIT REMOVAL/INSTALLATION
DPE071161132W01
1. Disconnect the negative battery cable.

07–11–4
 BASIC SYSTEM
2. Discharge the refrigerant. (See 07–10–2 REFRIGERANT CHARGING.)
3. Drain the engine coolant. (See 01–12A–3 ENGINE COOLANT REPLACEMENT [L8, LF].) (See 01–12B–3
ENGINE COOLANT REPLACEMENT [MZR-CD (RF Turbo)].)
4. Disconnect from the A/C unit in the order indicated in the table.

Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise or other malfunction could occur. Always plug open fittings immediately after
removing any refrigeration cycle parts.

LF, L8
6.86—9.80 N·m
{70.0—99.9 kgf·cm, 3
60.8—86.7 in·lbf}

R 1
SST

SST 2
DPE711ZW1101

MZR-CD (RF Turbo)

A: 6.86—9.80 N·m {70.0—99.9 kgf·cm, 60.8—86.7 in·lbf}
1 Cooler hose (LO) (LF, L8), cooler pipe No.2 (MZR- 3
CD (RF Turbo))
(See 07–11–30 Refrigerant Line Removal Note.) A
(See 07–11–31 Refrigerant Line Installation Note.)
2 Cooler pipe No.1
(See 07–11–30 Refrigerant Line Removal Note.) R
(See 07–11–31 Refrigerant Line Installation Note.) R
3 Heater hose
SST 1
5. Remove the following parts: A
(1) Front doors (See 09–11–2 FRONT DOOR SST 2
REMOVAL/INSTALLATION.) DPE711ZW1004

(2) Front scuff plate inner (See 09–17–19

FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(3) Front side trim (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(4) Side panel (passenger’s side) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(5) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(6) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(7) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/ 07
INSTALLATION.)
(8) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(9) Glove compartment (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
(10)Lower panel (See 09–17–8 LOWER PANEL REMOVAL/INSTALLATION.)
(11)Center panel module (vehicles with audio unit) (See 09–20–6 CENTER PANEL MODULE REMOVAL/
INSTALLATION.)
(12)Center panel (vehicles without audio unit) (See 09–17–15 CENTER PANEL REMOVAL/INSTALLATION.)
(13)Driver-side air bag module (See 08–10–5 DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION.)
(14)Meter hood (See 09–17–7 METER HOOD REMOVAL/INSTALLATION.)
(15)Lower column cover (See 09–17–7 COLUMN COVER REMOVAL/INSTALLATION.)
(16) Instrument cluster (See 09–22–1 INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
(17)Steering shaft (See 06-14–7 STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
(18)A-pillar trim (See 09–17–15 A-PILLAR TRIM REMOVAL/INSTALLATION.)
(19)Air mix wire (Manual air conditioner)
(20)Airflow mode wire (Manual air conditioner)
(21)Climate control unit (See 07–40–35 CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO
AIR CONDITIONER].) (See 07–40–36 CLIMATE CONTROL UNIT REMOVAL [MANUAL AIR
CONDITIONER].) (See 07–40–37 CLIMATE CONTROL UNIT INSTALLATION [MANUAL AIR
CONDITIONER].)
(22)Windshield wiper arm and blade (See 09–19–3 WINDSHIELD WIPER ARM AND BLADE REMOVAL/

07–11–5
 BASIC SYSTEM
INSTALLATION.)
(23)Cowl grille (See 09–16–2 COWL GRILLE REMOVAL/INSTALLATION.)
(24)Cowl panel (See 09–10–11 COWL PANEL REMOVAL/INSTALLATION.)
(25)Engine cover (MZR-CD (RF Turbo)
6. Remove the A/C unit installation nut from the
engine compartment, then remove the A/C unit. A/C UNIT INSTALLATION NUT
(See 07–11–6 A/C Unit Installation Nut Removal
Note.)
7. Remove the rear heat duct (1). (See 07–11–24
REAR HEAT DUCT REMOVAL/INSTALLATION.)
8. Disconnect the drain hose connected to the A/C
unit.
9. Remove the dashboard with A/C unit. (See 09–
17–4 DASHBOARD REMOVAL/INSTALLATION.)

Caution
• If moisture or foreign material enters the
DPE711ZW1102

refrigeration cycle, cooling ability will be

lowered and abnormal noise or other malfunction could occur. Always plug open fittings
immediately after removing any refrigeration cycle parts.

10. Disconnect the following connectors:

— Blower motor connector
— Power MOS FET connector (Full-auto air conditioner)
— Evaporator temperature sensor connector
— Air intake actuator connector
— Air mix actuator connector (Full-auto air conditioner)
— Airflow mode actuator connector (Full-auto air conditioner)
— Resistor connector. (Manual air conditioner)
11. Remove the heater case.
1. Remove the screws.
2. Pull up tab A in the direction shown by the arrow in the figure and remove it from the A/C unit.
3. Pull up tabs B in the direction shown by the
arrow in the figure and remove it from the A/C
unit. TAB B
12. Remove the front heat ducts.
13. Remove the nuts and bolts for installing the A/C
unit to the dashboard. A/C UNIT
14. Remove the A/C unit. TAB B
HEATER
CASE
TAB A
A/C UNIT

SCREW
A/C UNIT

DPE711ZW1103

A/C Unit Installation Nut Removal Note

Note
• If the adjusting bolt rotates when removing the A/C unit nut, keep rotating the nut. The adjusting bolt stops
rotating when it contacts the A/C unit and the nut can be removed.

07–11–6
 BASIC SYSTEM

A/C UNIT
A/C UNIT INSTALLATION NUT

ADJUSTING BOLT

DPE711ZW1104

A/C Unit Installation Note

1. When replacing the A/C unit or evaporator, add compressor oil to the refrigerant cycle.

Supplemental oil amount (approx. quantity)

25 ml {25 cc, 0.8 fl oz}

2. Tighten the A/C unit adjusting bolt until it lightly FRONT VIEW SIDE VIEW
touches the A/C unit.
ADJUSTING BOLT
End Of Sie TIGHTENING
DIRECTION

CONTACT SURFACE
(A/C UNIT)
DPE711ZW1105

A/C UNIT DISASSEMBLY/ASSEMBLY [FULL-AUTO AIR CONDITIONER (LF, L8)]

DPE071161132W03
1. Disassemble in the order indicated in the table.

Caution
• If a non-specified grease is used, it may result in abnormal noise or improper operation of the
links. Apply only the specified grease to each link.

2. Assemble in the reverse order of disassembly.

07

07–11–7
 BASIC SYSTEM
L.H.D.

5
2

4
3

8
9
6
1

20

18 14
A

19
R

R
B 16 21
R
24
R
13 15
12

22
17

23

7
25
A: 3.5—5.5 N·m {36—56 kgf·cm, 31—48 in·lbf} 11
B: 6.8—9.8 N·m {70—99 kgf·cm, 61—86 in·lbf}
10
DPE711ZW1005

07–11–8
 BASIC SYSTEM
R.H.D.

8
3
9

20
5
4

A
14
B 19

R 16 21
R
R
24
R
13 15
12
22

17

23

07
25 18
7
10
A: 3.5—5.5 N·m {36—56 kgf·cm, 31—48 in·lbf}
B: 6.8—9.8 N·m {70—99 kgf·cm, 61—86 in·lbf}
11

DPE711ZW1006

1 Adhesive polyurethane (1) 9 Air mix link set

2 Blower case (1) 10 Airflow mode link set
3 Blower case (2) 11 Airflow mode actuator
4 Air intake actuator 12 Polyurethane foam
5 Air intake link set 13 Adhesive polyurethane (2)
6 Blower motor 14 Adhesive polyurethane (3)
(See 07–40–10 BLOWER MOTOR REMOVAL.) (See 07–11–13 Adhesive Polyurethane Assembly
(See 07–40–16 BLOWER MOTOR Note.)
INSTALLATION.) 15 Evaporator pipe
7 Power MOS FET 16 Expansion valve
8 Air mix actuator 17 Heater core

07–11–9
 BASIC SYSTEM
18 Air filter
19 A/C case (1)
20 A/C case (2)
21 Adjusting bolt
(See 07–11–7 A/C Unit Installation Note.)
22 Evaporator temperature sensor
(See 07–11–10 Evaporator Temperature Sensor
Assembly Note.)
23 Sensor clamp
(See 07–11–10 Sensor Clamp Assembly Note.)
24 Evaporator
25 A/C case (3)

Sensor Clamp Assembly Note

1. Attach the sensor clamp as shown in the figure.
SENSOR PART
SECURE AT END LOCK SECURELY
OF CLAMP

RIGHT WRONG
B3E0711W010

Evaporator Temperature Sensor Assembly Note

1. Assemble the evaporator temperature sensor as
shown in the figure.
End Of Sie 1
2
3
4
5

105—115 mm
{4.14—4.52 in}

B3E0711W009

A/C UNIT DISASSEMBLY/ASSEMBLY [FULL-AUTO AIR CONDITIONER (MZR-CD (RF TURBO))]

DPE071161132W04
1. Disassemble in the order indicated in the table.

Caution
• If a non-specified grease is used, it may result in abnormal noise or improper operation of the
links. Apply only the specified grease to each link.

2. Assemble in the reverse order of disassembly.

07–11–10
 BASIC SYSTEM
L.H.D.

5
2

4
3

8
9
6
1

22

15
20 A
21

A
R
R 25
B
17
R
R 26
R
13 16
12
18

23
19
07
24

7
27
A: 3.5—5.5 N·m {36—56 kgf·cm, 31—48 in·lbf} 11 10
B: 6.8—9.8 N·m {70—99 kgf·cm, 61—86 in·lbf}
DPE711ZW1007

07–11–11
 BASIC SYSTEM
R.H.D.
6

8
9
2

22
5
4

R
14 A
15
B
21
R
17 25
R
R
26
R
13 16
12 18
23
19

24
20

27
7
10
11
A: 3.5—5.5 N·m {36—56 kgf·cm, 31—48 in·lbf}
B: 6.8—9.8 N·m {70—99 kgf·cm, 61—86 in·lbf}

DPE711ZW1008

1 Adhesive polyurethane (1) 8 Air mix actuator

2 Blower case (1) 9 Air mix link set
3 Blower case (2) 10 Airflow mode link set
4 Air intake actuator 11 Airflow mode actuator
5 Air intake link set 12 Polyurethane foam
6 Blower motor 13 Adhesive polyurethane (2)
(See 07–40–10 BLOWER MOTOR REMOVAL.) 14 Adhesive polyurethane (4) (R.H.D.)
(See 07–40–16 BLOWER MOTOR (See 07–11–13 Adhesive Polyurethane Assembly
INSTALLATION.) Note.)
7 Power MOS FET

07–11–12
 BASIC SYSTEM
15 Adhesive polyurethane (3)
(See 07–11–13 Adhesive Polyurethane Assembly
Note.)
16 Evaporator pipe
17 Expansion valve
18 Adhesive polyurethane (5)
(See 07–11–13 Adhesive Polyurethane Assembly
Note.)
19 Heater core
20 Air filter
21 A/C case (1)
22 A/C case (2)
23 Evaporator temperature sensor
(See 07–11–10 Evaporator Temperature Sensor
Assembly Note.)
24 Sensor clamp
(See 07–11–10 Sensor Clamp Assembly Note.)
25 Adjusting bolt
(See 07–11–7 A/C Unit Installation Note.)
26 Evaporator
27 A/C case (3)

Adhesive Polyurethane Assembly Note

1. Assemble the adhesive polyurethane as shown in the figure.
Adhesive polyurethane (5)
ALLOW NO PROJECTION FROM BLOCK

ADHESIVE
POLYURETHANE
ALIGN WITHIN AREA OF ARROWS

ALIGN WITHIN AREA OF ARROWS

B3E0711W415

Adhesive polyurethane (4)

CLEARANCE WITIN 10 mm

A 07

ALLOW NO
PROJECTION

HEATER PIPE

A-A

DPE711ZW1111

07–11–13
 BASIC SYSTEM
Adhesive polyurethane (3)
L.H.D. R.H.D.
ALIGN ADHESIVE
POLYURETHANE
NOTCH WITH PREVENT PINCHING OF
CENTER OF BLOCK FOLD BACK AND ADHERE FOLD BACK AND ADHERE ADHESIVE POLYURETHANE
AND ADHERE IN THE ORDER OF (1), (2) IN BOLT TIGHTENING AREAS

(2)

(1)

OVERLAP AND
ADHERE A
PRESS FIRMLY AROUND ENTIRE ALIGN ADHESIVE
CIRCUMFERENCE AND POLYURETHANE NOTCH
ADHERE WITHOUT ANY GAPS WITH CENTER OF BLOCK
AND ADHERE
A-A

DPE711ZW1017

End Of Sie
A/C UNIT DISASSEMBLY/ASSEMBLY [MANUAL AIR CONDITIONER (LF, L8)]
DPE071161132W05
1. Disassemble in the order indicated in the table.

Caution
• If a non-specified grease is used, it may result in abnormal noise or improper operation of the
links. Apply only the specified grease to each link.

2. Assemble in the reverse order of disassembly.

07–11–14
 BASIC SYSTEM
L.H.D.

6
2

5
3

4
1
8 9

20

14
18 A
19

R
B 16 21
R
24
R
13 15
12

22
17
07
23 10

25 7
A: 3.5—5.5 N·m {36—56 kgf·cm, 31—48 in·lbf} 11
B: 6.8—9.8 N·m {70—99 kgf·cm, 61—86 in·lbf}

DPE711ZW1009

07–11–15
 BASIC SYSTEM
R.H.D.

8 9 2

20
6 5

14
19
B
R
21
16
R
R
24

13 15 R
12

22

17

23 10

18
25
7
11
A: 3.5—5.5 N·m {36—56 kgf·cm, 31—48 in·lbf}
B: 6.8—9.8 N·m {70—99 kgf·cm, 61—86 in·lbf}

DPE711ZW1010

1 Adhesive polyurethane (1) 9 Wire clamp

2 Blower case (1) 10 Airflow mode link set
3 Blower case (2) 11 Wire clamp
4 Blower motor 12 Polyurethane foam
(See 07–40–10 BLOWER MOTOR REMOVAL.) 13 Adhesive polyurethane (2)
(See 07–40–16 BLOWER MOTOR
INSTALLATION.) 14 Adhesive polyurethane (3)
(See 07–11–13 Adhesive Polyurethane Assembly
5 Air intake actuator Note.)
6 Air intake link set 15 Evaporator pipe
7 Resistor 16 Expansion valve
8 Air mix link set

07–11–16
 BASIC SYSTEM
17 Heater core
18 Air filter
19 A/C case (1)
20 A/C case (2)
21 Adjusting bolt
(See 07–11–7 A/C Unit Installation Note.)
22 Evaporator temperature sensor
(See 07–11–10 Evaporator Temperature Sensor
Assembly Note.)
23 Sensor clamp
(See 07–11–10 Sensor Clamp Assembly Note.)
24 Evaporator
25 A/C case (3)

End Of Sie
A/C UNIT DISASSEMBLY/ASSEMBLY [MANUAL AIR CONDITIONER (MZR-CD (RF TURBO))]
DPE071161132W06
1. Disassemble in the order indicated in the table.

Caution
• If a non-specified grease is used, it may result in abnormal noise or improper operation of the
links. Apply only the specified grease to each link.

2. Assemble in the reverse order of disassembly.

07

07–11–17
 BASIC SYSTEM
L.H.D.

6
2

5
3

4
1
8 9

22

15
20 A 21

R
R 25
B 17
R
R 26
R
13 16
12
18
23

19

24 10

27 7
A: 3.5—5.5 N·m {36—56 kgf·cm, 31—48 in·lbf}
11
B: 6.8—9.8 N·m {70—99 kgf·cm, 61—86 in·lbf}

DPE711ZW1011

07–11–18
 BASIC SYSTEM
R.H.D.
4

8 9 2

22
6 5

14
A
20 R
15
21
R
B 25
17
R
R
26
R
13 16 R
12

18
23

19
10
24

07
27
7
11
A: 3.5—5.5 N·m {36—56 kgf·cm, 31—48 in·lbf}
B: 6.8—9.8 N·m {70—99 kgf·cm, 61—86 in·lbf}
DPE711ZW1012

1 Adhesive polyurethane (1) 10 Airflow mode link set

2 Blower case (1) 11 Wire clamp
3 Blower case (2) 12 Polyurethane foam
4 Blower motor 13 Adhesive polyurethane (2)
(See 07–40–10 BLOWER MOTOR REMOVAL.) 14 Adhesive polyurethane (4) (R.H.D.)
(See 07–40–16 BLOWER MOTOR (See 07–11–13 Adhesive Polyurethane Assembly
INSTALLATION.) Note.)
5 Air intake actuator 15 Adhesive polyurethane (3)
6 Air intake link set (See 07–11–13 Adhesive Polyurethane Assembly
7 Resistor Note.)
8 Air mix link set 16 Evaporator pipe
9 Wire clamp 17 Expansion valve

07–11–19
 BASIC SYSTEM
18 Adhesive polyurethane (5)
(See 07–11–13 Adhesive Polyurethane Assembly
Note.)
19 Heater core
20 Air filter
21 A/C case (1)
22 A/C case (2)
23 Evaporator temperature sensor
(See 07–11–10 Evaporator Temperature Sensor
Assembly Note.)
24 Sensor clamp
(See 07–11–10 Sensor Clamp Assembly Note.)
25 Adjusting bolt
(See 07–11–7 A/C Unit Installation Note.)
26 Evaporator
27 A/C case (3)

End Of Sie
AIR FILTER REMOVAL/INSTALLATION
DPE071161142W01
1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Partially open the floor mat and slide the BCM bracket. (R.H.D.)
4. Disconnect the evaporator temperature sensor connector. (L.H.D.)
5. Disconnect the power MOS FET connector. (L.H.D. Full-auto air conditioner)
6. Remove in the order indicated in the table.
L.H.D.

AIR FILTER
3 ATTACHMENT
DIRECTION

AIR FILTER
ATTACHMENT
DIRECTION

B3E0711W401
R.H.D.
1 Air filter cover AIR FILTER
2 Air filter (1) (L.H.D.), (2) (R.H.D.) ATTACHMENT
3 Air filter (2) (L.H.D.), (1) (R.H.D.) DIRECTION

7. Install in the reverse order of removal. 2

End Of Sie
1

AIR FILTER
ATTACHMENT
DIRECTION
DPE711ZW1112

07–11–20
 BASIC SYSTEM
AIR FILTER INSPECTION
DPE071161142W03
1. Verify that there is no damage, excessive dirt, or abnormal odor on the air filter.
• If there is any malfunction, replace the air filter.

Note
• The air filter cannot be reused by cleaning it with water or compressed air.

End Of Sie
EXPANSION VALVE REMOVAL/INSTALLATION
DPE071161014W01
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See 07–10–7 REFRIGERANT RECOVERY.) (See 07–10–2
REFRIGERANT CHARGING.)

Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise will occur. Always immediately plug all open fittings after removing any
refrigeration cycle parts to keep moisture or foreign material out of the cycle.

3. Remove the engine cover. (MZR-CD (RF Turbo)

4. Disconnect the cooler hose (LO) (LF, L8) or cooler pipe No.2 (MZR-CD (RF Turbo)) and cooler pipe No.1. Do
not allow compressor oil to spill. (See 07–11–29 REFRIGERANT LINES REMOVAL/INSTALLATION [LF, L8].)
(See 07–11–32 REFRIGERANT LINES REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
5. Remove the following parts:
(1) Front scuff plate inner (RH) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(2) Front side trim (RH) (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(3) Side panel (RH) (L.H.D.) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(4) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(5) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(6) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(7) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(8) Glove compartment (L.H.D.) (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.) (L.H.D.)
(9) Lower panel (R.H.D.) (See 09–17–8 LOWER PANEL REMOVAL/INSTALLATION.) (R.H.D.)
6. Remove the adhesive polyurethane covering the evaporator pipe.

Caution
• Being careful not to damage the adhesive sponge rubber, remove adhesive polyurethane
completely.

7. Remove the bolt and shift the evaporator pipe. Do not allow compressor oil to spill.
8. Remove the expansion valve. Do not allow compressor oil to spill.

07

07–11–21
 BASIC SYSTEM
LF, L8, MZR-CD (RF Turbo) (L.H.D.)
EVAPORATOR PIPE

ADHESIVE
SPONGE
RUBBER

6.8—9.8 N·m
{70—99 kgf·cm,
R 61—87 in·lbf}

EXPANSION
VALVE R
R ADHESIVE
R POLYURETHANE (3)
ADHESIVE
POLYURETHANE (5) 3.5—5.5 N·m
(MZR-CD (RF Turbo)) {36—56 kgf·cm,
31—48 in·lbf}

DPE711ZW1113
MZR-CD (RF Turbo) (R.H.D.)
9. Install in the reverse order of removal. ADHESIVE POLYURETHANE (4)
10. Perform the refrigerant system performance test. EVAPORATOR PIPE
(See 07–10–6 REFRIGERANT SYSTEM R
PERFORMANCE TEST.)
End Of Sie

ADHESIVE
SPONGE
RUBBER

6.8—9.8 N·m
{70—99 kgf·cm,
R 61—87 in·lbf}

EXPANSION
VALVE R
R ADHESIVE
R POLYURETHANE (3)
ADHESIVE
POLYURETHANE (5) 3.5—5.5 N·m
(MZR-CD (RF Turbo)) {36—56 kgf·cm,
31—48 in·lbf}
DPE711ZW1114

EVAPORATOR INSPECTION
DPE071161810W01
1. Inspect the evaporator for damage, cracks, and oil leakage.
• If there is any malfunction, replace the evaporator.
2. Visually inspect the fins for bending.
• If there is any bending, use the end of a flathead screwdriver to straighten the fins.
End Of Sie
HEATER CORE INSPECTION
DPE071161910W01
1. Inspect the heater core for damage, cracks, and water leakage.
• If there is any malfunction, replace the heater core.
2. Visually inspect the fins for bending.
• If there is any bending, use the end of a flathead screwdriver to straighten the fins.
3. Visually inspect the heater hose for deformation.
• Repair with pliers if there is deformation. If there is any malfunction, replace the heater core.
End Of Sie

07–11–22
 BASIC SYSTEM
AIRFLOW MODE MAIN LINK REMOVAL/INSTALLATION
DPE071161030W01
L.H.D.
1. Disconnect the negative battery cable.
2. Removal the following parts.
(1) Side wall. (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(2) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(3) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(4) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
3. Detach the bonnet release lever from the lower panel. (See09–14–5 BONNET LATCH AND RELEASE LEVER
REMOVAL/INSTALLATION.)
4. Remove the front scuff plate (LH). (See09–17–19 FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
5. Remove the front side trim (LH). (See09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
6. Remove the lower panel. (See 09–17–8 LOWER PANEL REMOVAL/INSTALLATION.)
7. Remove the column cover (See 09–17–7 COLUMN COVER REMOVAL/INSTALLATION.)
8. Remove the front heat duct (LH).
9. Remove the airflow mode rod (1).
10. Remove the airflow mode actuator. (full-auto air conditioner) (See 07–40–9 AIRFLOW MODE ACTUATOR
REMOVAL/INSTALLATION.)
11. Remove the airflow mode main link.
12. Install in the reverse order of removal.
AIRFLOW MODE
13. Adjust the airflow mode wire. (See 07–40–40 MAIN LINK
CLIMATE CONTROL UNIT WIRE
ADJUSTMENT.)

B3E0711W013

R.H.D.
1. Disconnect the negative battery cable.
2. Removal the following parts.
(1) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(2) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(3) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(4) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(5) Front scuff plate inner (passenger’s side) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/
INSTALLATION.) 07
(6) Front side trim (passenger’s side) (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(7) Side panel. (passenger’s side) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(8) Glove compartment (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
3. Remove the airflow mode rod (1).
4. Remove the air mix actuator. (full-auto air conditioner)
5. Remove the airflow mode main rink.
6. Install in the reverse order of removal.
7. Adjust the airflow mode wire. (See 07–40–40
CLIMATE CONTROL UNIT WIRE
ADJUSTMENT.) AIRFLOW MODE
MAIN LINK

B3E0711W413

07–11–23
 BASIC SYSTEM
Airflow Mode Main Link Installation Note

Caution
• Apply only the specified grease to links. Otherwise abnormal noise or improper operation may
result.

1. Push and hold each airflow mode sub link in the

direction of the arrow. AIRFLOW MODE
2. Set the airflow mode main link to the A/C unit as SUB LINK
shown in the figure.
3. Press the airflow mode main link lightly to the A/C
unit it in the direction shown by the arrow, then set
the projections of each airflow mode sub link into
the grooves of the airflow mode main link.

AIRFLOW MODE
SUB LINK
B3E0711W014

4. Rotate airflow mode main link and verify that each

mode is accessed properly. AIRFLOW MODE
MAIN LINK
End Of Sie

B3E0711W015

REAR HEAT DUCT REMOVAL/INSTALLATION

DPE071161273W01
1. Disconnect the negative battery cable.
2. Remove the following parts:
(1) Front seat (See 09–13–1 FRONT SEAT REMOVAL/INSTALLATION.)
(2) Center console (See 09–17–14 CENTER CONSOLE REMOVAL/INSTALLATION.)
(3) Front scuff plate inner (See 09–17–19 FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(4) Front side trim (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(5) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(6) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(7) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(8) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(9) Dust cover (See 06-14–7 STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
3. Partially open the floor mat. (See 09–17–23 FLOOR COVERING REMOVAL/INSTALLATION.)

07–11–24
 BASIC SYSTEM
4. Remove in the order indicated in the table.
1 Rear heat duct (1)
2 Rear heat duct (2)
3 Rear heat duct (3)
4 Rear heat duct (4)

5. Install in the reverse order of removal. 4

End Of Sie

DPE711ZW1013

A/C COMPRESSOR REMOVAL/INSTALLATION [LF, L8]

DPE071161450W02
1. Disconnect the negative battery cable.
2. Discharge the refrigerant. (See 07–10–2 REFRIGERANT CHARGING.)
3. Remove the splash shield.
4. Remove the A/C drive belt. (See 01–10A–3 DRIVE BELT REPLACEMENT [L8, LF].)
5. Detach the two wiring harness clamps.
6. Disconnect the magnetic clutch connector.
7. Remove the A/C compressor protector.
8. Disconnect the cooler hose (LO) and cooler hose (HI). Do not allow remaining compressor oil in the refrigerant
line to spill. (See 07–11–30 Refrigerant Line Removal Note.) (See 07–11–31 Refrigerant Line Installation
Note.)

Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise or other malfunction could occur. Always plug open fittings immediately after
removing any refrigeration cycle parts.

9. Remove the compressor protector.

10. Remove in the A/C compressor. Do not allow remaining compressor oil in the A/C compressor to spill.
07
Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise or other malfunction could occur. Always plug open fittings immediately after
removing any refrigeration cycle parts.

07–11–25
 BASIC SYSTEM
11. Install in the reverse order of removal. A
12. Perform the refrigerant system performance test. R A
(See 07–10–6 REFRIGERANT SYSTEM
PERFORMANCE TEST.) R

COOLER
HOSE
COOLER (LO)
HOSE (HI)
A/C
COMPRESSOR

B B
A/C COMPRESSOR
PROTECTOR
A: 6.86—9.80 N·m {70.0—99.9 kgf·cm, 60.8—86.7 in·lbf}
B: 17.6—26.5 N·m {1.80—2.70 kgf·m, 13.0—19.5 ft·lbf}
DPE711ZW1107

A/C Compressor Installation Note

Caution
• Due to the high moisture-absorption characteristics of the compressor oil, it may absorb moisture
if left over a long period of time thereby negatively affecting A/C operation. Drain the compressor
oil and refill within 10 min. of each other.

1. Rotate new A/C compressor shaft six to eight revolutions while collecting refrigerant oil in a clean measuring
device. Use this refrigerant oil to refill new compressor. Do not allow refrigerant oil to become contaminated.
2. Rotate old A/C compressor shaft six to eight revolutions while collecting refrigerant oil in a separate, clean
measuring device.
3. Compare those oil amounts. The amount of the oil drained from the new A/C compressor should be greater
than the old one.
4. Pour the same amount oil of drained from the old A/C compressor back into the new A/C compressor.

A/C compressor oil type

• ATMOS GU10

A/C compressor oil sealed volume (approx. quantity)

• 150 ml {150 cc, 5.07 fl oz}

End Of Sie NEW A/C COMPRESSOR OLD A/C COMPRESSOR

SAME
AMOUNT

DPE711ZW1106

07–11–26
 BASIC SYSTEM
A/C COMPRESSOR REMOVAL/INSTALLATION [MZR-CD (RF TURBO)]
DPE071161450W03
1. Disconnect the negative battery cable.
2. Discharge the refrigerant. (See 07–10–2 REFRIGERANT CHARGING.)
3. Remove the splash shield.
4. Remove the drive belt. (See 01–10B–3 DRIVE BELT REPLACEMENT [MZR-CD (RF Turbo)].)
5. Detach the wiring harness clamp and disconnect the magnetic clutch connector.
6. Remove in the order indicated in the table. Do not allow remaining compressor oil in the refrigerant line and A/
C compressor to spill.

Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise or other malfunction could occur. Always plug open fittings immediately after
removing any refrigeration cycle parts.

1 Cooler hose (HI) A

(See 07–11–33 Refrigerant Line Removal Note.)
(See 07–11–34 Refrigerant Line Installation Note.)
1
A
2 Cooler hose (LO) R
(See 07–11–33 Refrigerant Line Removal Note.)
(See 07–11–34 Refrigerant Line Installation Note.)
2
3 A/C compressor B
(See 07–11–26 A/C Compressor Installation Note.)

7. Install in the reverse order of removal. R

8. Perform the refrigerant system performance test.
(See 07–10–6 REFRIGERANT SYSTEM
PERFORMANCE TEST.) 3
End Of Sie

A: 6.86—9.80 N·m {70.0—99.9 kgf·cm, 60.8—86.7 in·lbf}

B: 17.6—26.5 N·m {1.80—2.70 kgf·m, 13.0—19.5 ft·lbf}
DPE711ZW1014

CONDENSER REMOVAL/INSTALLATION
DPE071161480W01
1. Disconnect the negative battery cable.
2. Discharge the refrigerant. (See 07–10–2 REFRIGERANT CHARGING.)
3. Drain the engine coolant. (See 01–12A–3 ENGINE COOLANT REPLACEMENT [L8, LF].) (See 01–12B–3
ENGINE COOLANT REPLACEMENT [MZR-CD (RF Turbo)].)
4. Remove the battery cover. (LF, L8)
5. Remove the battery air duct. (LF, L8)
6. Remove the splash shield.
7. Remove the radiator grill (normal bumper), front bumper (sports bumper).
8. Remove the radiator upper mount.
9. Remove the rubber plate between radiator and shroud.
10. Disconnect the cooler hose (HI) and cooler pipe No.1. Do not allow remaining compressor oil in the refrigerant 07
line to spill.
11. Remove the cooling fan.
12. Disconnect the water hose from radiator.
13. Remove the radiator with the condenser installed. (See 01–12A–6 RADIATOR REMOVAL/INSTALLATION [L8,
LF].) (See 01–12B–6 RADIATOR REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
14. Release the radiator hook and pull the condenser up, being careful not to allow remaining compressor oil in the
condenser to spill. (See 07–11–28 Condenser Installation Note.)

Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise or other malfunction could occur. Always plug open fittings immediately after
removing any refrigeration cycle parts.

07–11–27
 BASIC SYSTEM
15. Install in the reverse order of removal.
16. Perform the refrigerant system performance test.
(See 07–10–6 REFRIGERANT SYSTEM 6.86—9.80 N·m
PERFORMANCE TEST.) {70.0—99.9 kgf·cm,
60.8—86.7 in·lbf}

R
RADIATOR

CONDENSER
DPE711ZW1108

Condenser Installation Note

1. After replacing the condenser, add compressor oil to the refrigeration cycle.

Supplemental oil amount (approx. quantity)

20 ml {20 cc, 0.7 fl oz}

End Of Sie
CONDENSER INSPECTION
DPE071161480W03
1. Inspect the condenser for cracks, damage, and oil leakage.
• If there is any malfunction, replace the condenser.
2. Visually inspect the fins for clogging of foreign material.
• If any fins are clogged, remove the foreign material.
3. Visually inspect the fins for bending.
• If there is any bending, use the end of a flathead screwdriver to straighten fins.
End Of Sie
RECEIVER/DRIER REMOVAL/INSTALLATION
DPE071161501W01
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See 07–10–7 REFRIGERANT RECOVERY.) (See 07–10–2
REFRIGERANT CHARGING.)
3. Remove the under cover.

Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise will occur. Always immediately plug all open fittings after removing any
refrigeration cycle parts to keep moisture or foreign material out of the cycle.

07–11–28
 BASIC SYSTEM
4. Remove the receiver/drier. Do not allow
compressor oil to spill.
5. Install in the reverse order of removal.
6. Perform the refrigerant system performance test.
(See 07–10–6 REFRIGERANT SYSTEM
PERFORMANCE TEST.) R
RECEIVER/DRIER
End Of Sie

6.86—9.80 N·m
{70.0—99.9 kgf·cm,
60.8—86.7 in·lbf}

6.86—9.80 N·m
{70.0—99.9 kgf·cm,
60.8—86.7 in·lbf}

DPE711ZW1109

REFRIGERANT LINES REMOVAL/INSTALLATION [LF, L8]

DPE071161460W01
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See 07–10–7 REFRIGERANT RECOVERY.) (See 07–10–2
REFRIGERANT CHARGING.)
3. Remove the coolant reserve tank. (See 01–12A–5 COOLANT RESERVE TANK REMOVAL/INSTALLATION
[L8, LF].)
4. Remove the splash shield.
5. Remove in the order indicated in the table. Do not allow compressor oil to spill.

Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise will occur. Always immediately plug all open fittings after removing any
refrigeration cycle parts to keep moisture or foreign material out of the cycle.

6. Install in the reverse order of removal.

07

07–11–29
 BASIC SYSTEM
7. Perform the refrigerant system performance test. (See 07–10–6 REFRIGERANT SYSTEM PERFORMANCE
TEST.) .

R
A
2

B R 3 SST
A
A A

R
R A

A B
D

C
A
D
C

B R

1 SST
A

A: 6.86—9.80 N·m {70.0—99.9 kgf·cm, 60.8—86.7 in·lbf}

DPE711ZW1015

1 Cooler hose (LO) 3 Cooler pipe No.1

(See 07–11–30 Refrigerant Line Removal Note.) (See 07–11–30 Refrigerant Line Removal Note.)
(See 07–11–31 Refrigerant Line Installation Note.) (See 07–11–31 Refrigerant Line Installation Note.)
2 Cooler hose (HI)
(See 07–11–30 Refrigerant Line Removal Note.)
(See 07–11–31 Refrigerant Line Installation Note.)

Refrigerant Line Removal Note

Block joint type
1. Disconnect the block joint type pipes by grasping female side of the block with pliers or similar tool and holding
firmly, then remove the connection bolt or nut.

07–11–30
 BASIC SYSTEM

MALE SIDE BLOCK HOLD FIRMLY THE

FEMALE SIDE FEMALE SIDE OF THE
BLOCK BLOCK BY PLIERS OR
EQUIVALANT.

B3E0711W024

Spring-lock coupling type (LF, L8)

1. Set the SST.

LOW: 49 B061 014

HIGH: 49 G061 001

ADA8516W022

2. While looking through the inspection hole of the

SST, insert the protruding part of the SST until it PROTRUDING
makes contact with the cage section. FEMALE MALE PIPE
3. Use the SST to disconnect the male pipe or hose PIPE OR HOSE PRESS
from the female by pulling the male pipe or hose.

Note
• The male pipe or hose can be disconnected
easily from the female pipe by pulling from
the male pipe or hose while maintaining the
pressure of the protruding part of the SST. CAGE SECTION INSPECTION HOLE
07
A6E8516W015

MALE PIPE OR HOSE

LOW: 49 B061 014

HIGH: 49 G061 001
ADA8516W021

Refrigerant Line Installation Note

1. Apply compressor oil to the O-rings and connect the joints.
2. Tighten the joints.

07–11–31
 BASIC SYSTEM
Block joint type
1. Tighten the bolt of joint by hand.
2. Connect the block joint type pipes by grasping the
female side of the block with pliers or similar tool
and holding firmly, then tighten the connection FEMALE SIDE BLOCK HOLD FIRMLY THE
bolt or nut with a torque wrench. MALE SIDE BLOCK FEMALE SIDE OF THE
BLOCK BY PLIERS OR
EQUIVALANT.

TORQUE WRENCH

B3E0711W023

Spring-lock coupling type

1. Connect the male pipe or hose by twisting it onto female pipe until the garter spring at the male pipe or hose is
over the flared end of female pipe.

Note
• When the male pipe or hose is replaced, the indicator ring comes out after connecting to indicate that it is
locked.

End Of Sie
MALE PIPE OR HOSE
SLIGHTLY TWISTING
FLARED END

FEMALE PIPE

PUSHING
GARTER SPRING

SPRING IS OVER
CAGE GARTER SPRING THE FLARED END
SECTION

FLARED
END

WRONG RIGHT
C3U0711W011

REFRIGERANT LINES REMOVAL/INSTALLATION [MZR-CD (RF TURBO)]

DPE071161460W03
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See 07–10–7 REFRIGERANT RECOVERY.) (See 07–10–2
REFRIGERANT CHARGING.)
3. Remove the coolant reserve tank. (See 01–12B–5 COOLANT RESERVE TANK REMOVAL/INSTALLATION
[MZR-CD (RF Turbo)].)
4. Remove the fuel filter. (L.H.D.)
5. Remove the splash shield.
6. Remove in the order indicated in the table. Do not allow compressor oil to spill.

07–11–32
 BASIC SYSTEM
Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise will occur. Always immediately plug all open fittings after removing any
refrigeration cycle parts to keep moisture or foreign material out of the cycle.

7. Install in the reverse order of removal.

8. Perform the refrigerant system performance test. (See 07–10–6 REFRIGERANT SYSTEM PERFORMANCE
TEST.) .

A A R

A
4
1 R

R A

A
A B

A
3

B
B
R

A
R

2
A: 6.86—9.80 N·m {70.0—99.9 kgf·cm, 60.8—86.7 in·lbf}
B: 19.6—29.4 N·m {2.00—2.99 kgf·m, 14.5—21.6 ft·lbf}

DPE711ZW1016

1 Cooler hose (HI) 3 Cooler pipe No.2 07

(See 07–11–33 Refrigerant Line Removal Note.) (See 07–11–33 Refrigerant Line Removal Note.)
(See 07–11–34 Refrigerant Line Installation Note.) (See 07–11–34 Refrigerant Line Installation Note.)
2 Cooler hose (LO) 4 Cooler pipe No.1
(See 07–11–33 Refrigerant Line Removal Note.) (See 07–11–33 Refrigerant Line Removal Note.)
(See 07–11–34 Refrigerant Line Installation Note.) (See 07–11–34 Refrigerant Line Installation Note.)

Refrigerant Line Removal Note

Nut joint type
1. Loose the nut using two spanners and remove the pipe.

Block joint type

1. Disconnect the block joint type pipes by grasping female side of the block with pliers or similar tool and holding
firmly, then remove the connection bolt or nut.

07–11–33
 BASIC SYSTEM

MALE SIDE BLOCK HOLD FIRMLY THE

FEMALE SIDE FEMALE SIDE OF THE
BLOCK BLOCK BY PLIERS OR
EQUIVALANT.

B3E0711W024

Refrigerant Line Installation Note

1. Apply compressor oil to the O-rings and connect the joints.
2. Tighten the joints.

Nut or Block joint type

1. Temporarily tighten the nut or bolt at the connection as much as possible by hand.
2. Tighten to the specified torque using a torque wrench. Tighten the nut joint using a double spanner.
• Connect the block joints by grasping the female side of the block with pliers or similar tool and holding
firmly, then tighten the connection bolt or nut using a torque wrench.
End Of Sie
FEMALE SIDE BLOCK HOLD FIRMLY THE
MALE SIDE BLOCK FEMALE SIDE OF THE
BLOCK BY PLIERS OR
EQUIVALANT.

TORQUE WRENCH

B3E0711W023

07–11–34
 CONTROL SYSTEM

07–40 CONTROL SYSTEM

HVAC CONTROL SYSTEM LOCATION INDEX AMBIENT TEMPERATURE SENSOR
[FULL-AUTO AIR CONDITIONER] . . . . 07–40–2 INSPECTION . . . . . . . . . . . . . . . . . . . . . 07–40–29
HVAC CONTROL SYSTEM LOCATION INDEX CABIN TEMPERATURE SENSOR REMOVAL/
[MANUAL AIR CONDITIONER] . . . . . . 07–40–4 INSTALLATION. . . . . . . . . . . . . . . . . . . . 07–40–29
AIR INTAKE ACTUATOR REMOVAL/INSTALLATION CABIN TEMPERATURE SENSOR
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 07–40–5 INSPECTION . . . . . . . . . . . . . . . . . . . . . 07–40–30
AIR INTAKE ACTUATOR EVAPORATOR TEMPERATURE SENSOR
INSPECTION . . . . . . . . . . . . . . . . . . . . . 07–40–6 REMOVAL/INSTALLATION . . . . . . . . . . 07–40–31
AIR MIX ACTUATOR REMOVAL/ EVAPORATOR TEMPERATURE SENSOR
INSTALLATION . . . . . . . . . . . . . . . . . . . 07–40–7 INSPECTION . . . . . . . . . . . . . . . . . . . . . 07–40–31
AIR MIX ACTUATOR INSPECTION . . . . 07–40–8 REFRIGERANT PRESSURE SWITCH REMOVAL/
AIRFLOW MODE ACTUATOR REMOVAL/ INSTALLATION. . . . . . . . . . . . . . . . . . . . 07–40–32
INSTALLATION . . . . . . . . . . . . . . . . . . . 07–40–9 REFRIGERANT PRESSURE SWITCH
AIRFLOW MODE ACTUATOR INSPECTION . . . . . . . . . . . . . . . . . . . . . 07–40–33
INSPECTION . . . . . . . . . . . . . . . . . . . . . 07–40–9 WATER HEATER UNIT REMOVAL/INSTALLATION
BLOWER MOTOR REMOVAL. . . . . . . . . 07–40–10 [MZR-CD (RF Turbo)]. . . . . . . . . . . . . . . 07–40–34
BLOWER MOTOR INSTALLATION . . . . 07–40–16 WATER HEATER SYSTEM INITIAL SETTING [MZR-
BLOWER MOTOR INSPECTION . . . . . . 07–40–20 CD (RF Turbo)]. . . . . . . . . . . . . . . . . . . . 07–40–34
POWER MOS FET REMOVAL/ FUEL PUMP (WATER HEATER SYSTEM)
INSTALLATION . . . . . . . . . . . . . . . . . . . 07–40–21 REMOVAL/INSTALLATION [MZR-CD
POWER MOS FET INSPECTION . . . . . . 07–40–21 (RF TURBO)] . . . . . . . . . . . . . . . . . . . . . 07–40–35
RESISTOR REMOVAL/ FUEL PUMP (WATER HEATER SYSTEM)
INSTALLATION . . . . . . . . . . . . . . . . . . . 07–40–22 INSPECTION [MZR-CD (RF Turbo)] . . . 07–40–35
RESISTOR INSPECTION . . . . . . . . . . . . 07–40–23 CLIMATE CONTROL UNIT REMOVAL/
MAGNETIC CLUTCH DISASSEMBLY/ INSTALLATION [FULL-AUTO AIR
ASSEMBLY [LF, L8] . . . . . . . . . . . . . . . 07–40–24 CONDITIONER] . . . . . . . . . . . . . . . . . . . 07–40–35
MAGNETIC CLUTCH DISASSEMBLY/ASSEMBLY CLIMATE CONTROL UNIT REMOVAL [MANUAL AIR
[MZR-CD (RF Turbo)] . . . . . . . . . . . . . . 07–40–25 CONDITIONER] . . . . . . . . . . . . . . . . . . . 07–40–36
MAGNETIC CLUTCH ADJUSTMENT CLIMATE CONTROL UNIT INSTALLATION
[LF, L8] . . . . . . . . . . . . . . . . . . . . . . . . . 07–40–26 [MANUAL AIR CONDITIONER] . . . . . . . 07–40–37
MAGNETIC CLUTCH ADJUSTMENT [MZR-CD (RF CLIMATE CONTROL UNIT DISASSEMBLY/
Turbo)]. . . . . . . . . . . . . . . . . . . . . . . . . . 07–40–26 ASSEMBLY [FULL-AUTO AIR
MAGNETIC CLUTCH INSPECTION CONDITIONER] . . . . . . . . . . . . . . . . . . . 07–40–38
[LF, L8] . . . . . . . . . . . . . . . . . . . . . . . . . 07–40–27 CLIMATE CONTROL UNIT DISASSEMBLY/
MAGNETIC CLUTCH INSPECTION [MZR-CD (RF ASSEMBLY [MANUAL AIR
Turbo)]. . . . . . . . . . . . . . . . . . . . . . . . . . 07–40–28 CONDITIONER] . . . . . . . . . . . . . . . . . . . 07–40–38
SOLAR RADIATION SENSOR REMOVAL/ CLIMATE CONTROL UNIT WIRE
INSTALLATION . . . . . . . . . . . . . . . . . . . 07–40–28 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 07–40–40
SOLAR RADIATION SENSOR CLIMATE CONTROL UNIT INSPECTION
INSPECTION . . . . . . . . . . . . . . . . . . . . . 07–40–28 [FULL-AUTO AIR CONDITIONER] . . . . 07–40–40 07
AMBIENT TEMPERATURE SENSOR REMOVAL/ CLIMATE CONTROL UNIT INSPECTION [MANUAL
INSTALLATION . . . . . . . . . . . . . . . . . . . 07–40–29 AIR CONDITIONER]. . . . . . . . . . . . . . . . 07–40–44
FAN SWITCH INSPECTION . . . . . . . . . . . 07–40–46

End of Toc

07–40–1
 CONTROL SYSTEM
HVAC CONTROL SYSTEM LOCATION INDEX [FULL-AUTO AIR CONDITIONER]
DPE074000000W01
L.H.D.
4 16
14

8 9
3
1
15 5
12

13
6
10
2
11 18
17
19

DPE740ZW1001

R.H.D.
4 16
14

1 9
8
15 17 3
18
12

13
6
5

2
11
10

DPE740ZW1002

07–40–2
 CONTROL SYSTEM
1 Air intake actuator 9 Ambient temperature sensor
(See 07–40–5 AIR INTAKE ACTUATOR REMOVAL/ (See 07–40–29 AMBIENT TEMPERATURE
INSTALLATION.) SENSOR REMOVAL/INSTALLATION.)
(See 07–40–6 AIR INTAKE ACTUATOR (See 07–40–29 AMBIENT TEMPERATURE
INSPECTION.) SENSOR INSPECTION.)
2 Air mix actuator 10 Cabin temperature sensor
(See 07–40–7 AIR MIX ACTUATOR REMOVAL/ (See 07–40–29 CABIN TEMPERATURE SENSOR
INSTALLATION.) REMOVAL/INSTALLATION.)
(See 07–40–8 AIR MIX ACTUATOR INSPECTION.) (See 07–40–30 CABIN TEMPERATURE SENSOR
3 Airflow mode actuator INSPECTION.)
(See 07–40–9 AIRFLOW MODE ACTUATOR 11 Evaporator temperature sensor
REMOVAL/INSTALLATION.) (See 07–40–31 EVAPORATOR TEMPERATURE
(See 07–40–9 AIRFLOW MODE ACTUATOR SENSOR REMOVAL/INSTALLATION.)
INSPECTION.) (See 07–40–31 EVAPORATOR TEMPERATURE
4 Blower motor SENSOR INSPECTION.)
(See 07–40–10 BLOWER MOTOR REMOVAL.) 12 Refrigerant pressure switch
(See 07–40–16 BLOWER MOTOR (See 07–40–32 REFRIGERANT PRESSURE
INSTALLATION.) SWITCH REMOVAL/INSTALLATION.)
(See 07–40–20 BLOWER MOTOR INSPECTION.) (See 07–40–33 REFRIGERANT PRESSURE
5 Power MOS FET SWITCH INSPECTION.)
(See 07–40–21 POWER MOS FET REMOVAL/ 13 Climate control unit
INSTALLATION.) (See 07–40–35 CLIMATE CONTROL UNIT
(See 07–40–21 POWER MOS FET INSPECTION.) REMOVAL/INSTALLATION [FULL-AUTO AIR
6 Magnetic clutch (LF, L8) CONDITIONER].)
(See 07–40–24 MAGNETIC CLUTCH (See 07–40–40 CLIMATE CONTROL UNIT
DISASSEMBLY/ASSEMBLY [LF, L8].) INSPECTION [FULL-AUTO AIR CONDITIONER].)
(See 07–40–26 MAGNETIC CLUTCH 14 A/C relay
ADJUSTMENT [LF, L8].) (See 09–21–3 RELAY INSPECTION.)
(See 07–40–27 MAGNETIC CLUTCH 15 Blower relay
INSPECTION [LF, L8].) (See 09–21–3 RELAY INSPECTION.)
7 Magnetic clutch (MZR-CD (RF Turbo)) 16 PCM (LF, L8)
(See 07–40–25 MAGNETIC CLUTCH (See 01–40A–7 PCM INSPECTION [L8, LF].)
DISASSEMBLY/ASSEMBLY [MZR-CD (RF Turbo)].)
(See 07–40–26 MAGNETIC CLUTCH 17 PCM (MZR-CD (RF Turbo))
ADJUSTMENT [MZR-CD (RF Turbo)].) (See 01–40B–10 PCM INSPECTION [MZR-CD (RF
(See 07–40–28 MAGNETIC CLUTCH Turbo)].)
INSPECTION [MZR-CD (RF Turbo)].) 18 BCM
8 Solar radiation sensor (See 09–40–1 BODY CONTROL MODULE (BCM)
(See 07–40–28 SOLAR RADIATION SENSOR REMOVAL/INSTALLATION.)
REMOVAL/INSTALLATION.) (See 09–40–1 BODY CONTROL MODULE (BCM)
(See 07–40–28 SOLAR RADIATION SENSOR INSPECTION.)
INSPECTION.) 19 Water heater unit (MZR-CD (RF Turbo))
(See 07–40–34 WATER HEATER UNIT REMOVAL/
INSTALLATION [MZR-CD (RF Turbo)].)

07

End Of Sie

07–40–3
 CONTROL SYSTEM
HVAC CONTROL SYSTEM LOCATION INDEX [MANUAL AIR CONDITIONER]
DPE074000000W03
L.H.D.
9
2
3
1

10
7

4
8
11

6
12

DPE740ZW1003

R.H.D.
9
1
3
2

10
11 7

8 4

DPE740ZW1004

07–40–4
 CONTROL SYSTEM
1 Air intake actuator 6 Evaporator temperature sensor
(See 07–40–5 AIR INTAKE ACTUATOR REMOVAL/ (See 07–40–31 EVAPORATOR TEMPERATURE
INSTALLATION.) SENSOR REMOVAL/INSTALLATION.)
(See 07–40–6 AIR INTAKE ACTUATOR (See 07–40–31 EVAPORATOR TEMPERATURE
INSPECTION.) SENSOR INSPECTION.)
2 Blower motor 7 Refrigerant pressure switch
(See 07–40–10 BLOWER MOTOR REMOVAL.) (See 07–40–32 REFRIGERANT PRESSURE
(See 07–40–16 BLOWER MOTOR SWITCH REMOVAL/INSTALLATION.)
INSTALLATION.) (See 07–40–33 REFRIGERANT PRESSURE
(See 07–40–20 BLOWER MOTOR INSPECTION.) SWITCH INSPECTION.)
3 Resistor 8 Climate control unit
(See 07–40–22 RESISTOR REMOVAL/ (See 07–40–36 CLIMATE CONTROL UNIT
INSTALLATION.) REMOVAL [MANUAL AIR CONDITIONER].)
(See 07–40–23 RESISTOR INSPECTION.) (See 07–40–37 CLIMATE CONTROL UNIT
4 Magnetic clutch (LF, L8) INSTALLATION [MANUAL AIR CONDITIONER].)
(See 07–40–24 MAGNETIC CLUTCH (See 07–40–38 CLIMATE CONTROL UNIT
DISASSEMBLY/ASSEMBLY [LF, L8].) DISASSEMBLY/ASSEMBLY [MANUAL AIR
(See 07–40–26 MAGNETIC CLUTCH CONDITIONER].)
ADJUSTMENT [LF, L8].) (See 07–40–44 CLIMATE CONTROL UNIT
(See 07–40–27 MAGNETIC CLUTCH INSPECTION [MANUAL AIR CONDITIONER].)
INSPECTION [LF, L8].) 9 A/C relay
5 Magnetic clutch (MZR-CD (RF Turbo)) (See 09–21–3 RELAY INSPECTION.)
(See 07–40–25 MAGNETIC CLUTCH 10 Blower relay
DISASSEMBLY/ASSEMBLY [MZR-CD (RF Turbo)].) (See 09–21–3 RELAY INSPECTION.)
(See 07–40–26 MAGNETIC CLUTCH 11 BCM
ADJUSTMENT [MZR-CD (RF Turbo)].) (See 09–40–1 BODY CONTROL MODULE (BCM)
(See 07–40–28 MAGNETIC CLUTCH REMOVAL/INSTALLATION.)
INSPECTION [MZR-CD (RF Turbo)].) (See 09–40–1 BODY CONTROL MODULE (BCM)
INSPECTION.)
12 Water heater unit (MZR-CD (RF Turbo))
(See 07–40–34 WATER HEATER UNIT REMOVAL/
INSTALLATION [MZR-CD (RF Turbo)].)

End Of Sie
AIR INTAKE ACTUATOR REMOVAL/INSTALLATION
DPE074061060W01
1. Disconnect the negative battery cable.
2. Remove the following parts:
(1) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(2) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(3) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(4) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(5) Front scuff plate inner (passenger’s side) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/
INSTALLATION.) 07
(6) Front side trim (passenger’s side) (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(7) Side panel. (passenger’s side) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(8) Glove compartment (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
(9) Car-navigation unit (See 09–20–8 CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
3. Slide the blower case to the position shown in the figure. (See 07–40–10 BLOWER MOTOR REMOVAL.)
(R.H.D.)
4. Remove in the order indicated in the table.

07–40–5
 CONTROL SYSTEM
L.H.D.

CONNECTOR
LOCK
POSITION

1
B3E0740W003
R.H.D.
1 Air intake actuator connector CONNECTOR
LOCK
2 Air intake actuator POSITION AIR INTAKE ACTUATOR
CONNECTOR
5. Install in the reverse order of removal.
End Of Sie

AIR INTAKE ACTUATOR

BLOWER CASE
DPE740ZW1101

AIR INTAKE ACTUATOR INSPECTION

DPE074061060W02
1. Connect battery positive voltage to air intake actuator terminal C (or G), connect terminal G (or E) to ground,
and then verify that the air intake actuator operates as shown in the table.
• If the operation condition is not normal, replace the air intake actuator.

07–40–6
 CONTROL SYSTEM
L.H.D.
FRESH

* G * E * C * *
86.8°

3.2°
RECIRCULATE

M G

B3E0740W409

R.H.D.
Terminal Air intake actuator FRESH
C E G operation G E C
* * * * *
B+ – Ground FRESH→RECIRCULATE
– Ground B+ RECIRCULATE→FRESH 86.8°

End Of Sie
3.2°
RECIRCULATE

07

M G

DPE740ZW1102

AIR MIX ACTUATOR REMOVAL/INSTALLATION

DPE074061415W01
1. Disconnect the negative battery cable.
2. Remove the following parts:
(1) Side wall (L.H.D.) (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(2) Front console (L.H.D.) (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(3) Front scuff plate inner (passenger’s side) (L.H.D.) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/
INSTALLATION.)
(4) Front side trim (passenger’s side) (L.H.D.) (See 09–17–15 FRONT SIDE TRIM REMOVAL/
INSTALLATION.)
(5) Side panel. (passenger’s side) (L.H.D.) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(6) Glove compartment (L.H.D.) (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
(7) Column cover (R.H.D.) (See 09–17–7 COLUMN COVER REMOVAL/INSTALLATION.)
(8) Front heat duct (driver’s side) (R.H.D.)

07–40–7
 CONTROL SYSTEM
3. Remove in the order indicated in the table.
CONNECTOR LOCK
1 air mix actuator POSITION
2 Air mix actuator connector
2
4. Install in the reverse order of removal.
End Of Sie

TO FRONT

DPE740ZW1103

AIR MIX ACTUATOR INSPECTION

DPE074061415W03

Caution
• If the lever position exceeds the operation range shown in the figure, the circuit in the actuator
could be damaged. Always perform an actuator operation inspection with the lever movement
within the range shown in the figure.

1. Connect battery positive voltage to air mix actuator terminal D (or F), connect terminal F (or D) to ground, and
then verify that the air mix actuator operates as shown in the table.
• If the operation condition is not normal, replace the air mix actuator.
Terminal MAX
Air mix actuator operation
D F COLD
B+ Ground HOT→COLD 90˚
Ground B+ COLD→HOT

2. Verify that the resistance between terminals B F * D C B A

and C, and C and A matches the air mix actuator
19.2˚
operation as shown in the graph.
MAX
• If the operation condition and resistance are HOT
not normal, replace the air mix actuator.

F
M
D
MAX HOT MAX COLD
B
C
A

DPE740ZW1104

07–40–8
 CONTROL SYSTEM
End Of Sie BETWEEN B—C
KILOHM BETWEEN C—A
TERMINALS WIRE TERMINALS WIRE
3.5

RESISTANCE
0.5

MAX MAX MAX MAX

HOT COLD HOT COLD
AIR MIX ACTUATOR POSITION
B3E0740W007

AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION

DPE074061070W01
1. Disconnect the negative battery cable.
2. Remove the following parts:
(1) Side wall (R.H.D.) (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(2) Front console (R.H.D.) (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(3) Front scuff plate inner (passenger’s side) (R.H.D.) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/
INSTALLATION.)
(4) Front side trim (passenger’s side) (R.H.D.) (See 09–17–15 FRONT SIDE TRIM REMOVAL/
INSTALLATION.)
(5) Side panel. (passenger’s side) (R.H.D.) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(6) Glove compartment (R.H.D.) (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
(7) Column cover (L.H.D.) (See 09–17–7 COLUMN COVER REMOVAL/INSTALLATION.)
(8) Front heat duct (driver’s side) (L.H.D.)
3. Remove in the order indicated in the table.
CONNECTOR LOCK
1 Airflow mode actuator POSITION
2 Airflow mode actuator connector

4. Install in the reverse order of removal.

End Of Sie

2
TO FRONT

07
1

DPE740ZW1105

AIRFLOW MODE ACTUATOR INSPECTION

DPE074061070W03

Caution
• If the lever position exceeds the operation range shown in the figure, the circuit in the actuator
could be damaged. Always perform an actuator operation inspection with the lever movement
within the range shown in the figure.

1. Connect battery positive voltage to airflow mode actuator terminal D (or F), connect terminal F (or D) to ground,
and then verify that the airflow mode actuator operates as shown in the table.
• If the operation condition is not normal, replace the airflow mode actuator.

07–40–9
 CONTROL SYSTEM

Terminal Airflow mode actuator

D F operation
B+ Ground VENT → DEFROSTER VENT
F * D C B A
Ground B+ DEFROSTER → VENT 4.1˚

2. Verify that the resistance between terminals A

and C, and C and B matches the airflow mode
actuator operation as shown in the graph.
• If the operation condition and resistance are 85.9˚
not normal, replace the airflow mode actuator.
DEFROSTER

F
M
D
DEFROSTER VENT
A
C
B

DPE740ZW1106

End Of Sie
BETWEEN A—C BETWEEN C—B
KILOHM
TERMINALS WIRE TERMINALS WIRE
3.5
RESISTANCE

0.5

VENT DEFROSTER VENT DEFROSTER

AIRFLOW MODE ACTUATOR POSITION
DPE740ZW1127

BLOWER MOTOR REMOVAL

DPE074061020W01

Note
• The blower motor is located on the A/C unit as shown in the figure.

07–40–10
 CONTROL SYSTEM
L.H.D.
BLOWER MOTOR
BLOWER CASE

BLOWER MOTOR CONNECTOR

BLOWER MOTOR
COOLING PIPE

C3U0740W004
R.H.D.
1. Set the air intake mode to FRESH.
BLOWER MOTOR
2. Disconnect the negative battery cable. BLOWER CASE
3. Remove the following parts: BLOWER MOTOR
(1) Side wall (See 09–17–11 SIDE WALL CONNECTOR
REMOVAL/INSTALLATION.)
(2) Selector lever component (ATX) (See 05–18–
5 SELECTOR LEVER COMPONENT
REMOVAL/INSTALLATION.)
(3) Shift lever component (MTX) (See 05–16–1
MANUAL TRANSAXLE SHIFT MECHANISM
REMOVAL/INSTALLATION.)
(4) Front console (See 09–17–13 FRONT
CONSOLE REMOVAL/INSTALLATION.)
(5) Front scuff plate inner (passenger’s side)
(See 09–17–19 FRONT SCUFF PLATE
REMOVAL/INSTALLATION.)
(6) Front side trim (passenger’s side) (See 09–
17–15 FRONT SIDE TRIM REMOVAL/
INSTALLATION.)
(7) Side panel. (passenger’s side) (See 09–17– 07
11 SIDE PANEL REMOVAL/INSTALLATION.) BLOWER MOTOR
(8) Glove compartment (See 09–17–7 GLOVE COOLING PIPE
COMPARTMENT REMOVAL/
B3E0740W402
INSTALLATION.)
(9) Car-navigation unit (See 09–20–8 CAR-
NAVIGATION UNIT REMOVAL/INSTALLATION.)
(10)Bonnet release lever (See 09–14–5 BONNET LATCH AND RELEASE LEVER REMOVAL/INSTALLATION.)
(11)Lower panel (See 09–17–8 LOWER PANEL REMOVAL/INSTALLATION.)
(12)Airflow mode actuator (L.H.D.) (See 07–40–9 AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION.)
4. Remove the BCM wiring harness grommets.
5. Set the car-navigation unit wiring harness out of the way to secure the operation space.
6. Disconnect the airflow mode main link side airflow mode rod. (R.H.D.)
7. Remove the screws shown in the figure and slide the blower case.

Caution
• Slide the blower case while pressing the dashboard insulator, otherwise the blower case could be
damaged.

07–40–11
 CONTROL SYSTEM
L.H.D.

SCREW

SCREW

SCREW
B3E0740W012

R.H.D.
8. Disconnect the air intake actuator connector.
9. Remove the blower case shown in the figure. SCREW

SCREW

SCREW

B3E0740W413

L.H.D.

BLOWER CASE
DPE740ZW1005
R.H.D.
10. Remove the air guide.

BLOWER CASE

DPE740ZW1107

07–40–12
 CONTROL SYSTEM
L.H.D.
AIR GUIDE

C3U0740W002
R.H.D.
11. Install the SST (49 B061 015) to the blower motor.
(See 07–40–14 SST Installation Note.) AIR GUIDE
12. Disconnect the blower motor cooling pipe
connected to the blower motor.

B3E0740W415

L.H.D.

BLOWER MOTOR
COOLING PIPE

B3E0740W017
R.H.D.
13. Disconnect the blower motor connector as shown
in the figure.
BLOWER MOTOR
COOLING PIPE
07

B3E0740W432

07–40–13
 CONTROL SYSTEM
L.H.D.
BLOWER MOTOR
CONNECTOR

B3E0740W433
R.H.D.
14. Remove the blower motor cover. (See 07–40–15
Blower Motor Cover Removal Note.) BLOWER MOTOR
CONNECTOR
Caution
• When the blower motor cover is removed,
the blower motor could fall in the A/C unit
case causing the sirocco fan to be
damaged. Therefore another person must
hold the blower motor at the installation
position.

15. Remove the blower motor by pulling it out. (See B3E0740W404

07–40–15 Blower Motor Removal Note.)

SST Installation Note

1. Align the SST guide with the sirocco fan clip position and press the SST tabs (3) into the three set holes on the
blower motor until they are inserted.
L.H.D.

SET HOLE

SET HOLE

B3E0740W015
R.H.D.

SET HOLE
SET HOLE

B3E0740W417

07–40–14
 CONTROL SYSTEM

49 B061 015

SET HOLE
DPE740ZW1108

2. Rotate the SST (49 B061 015) clockwise to lock

the SST and blower motor.

49 B061 015
B3E0740W016

Blower Motor Cover Removal Note

1. Pull the lock on the top of the blower motor cover and rotate the blower motor cover .
L.H.D.
LOCK PART

B3E0740W018
R.H.D.

LOCK PART 07

B3E0740W418

Blower Motor Removal Note

Caution
• To prevent damage to the sirocco fan, pull the blower motor out being careful that the blower
motor does not interfere with the A/C unit.

07–40–15
 CONTROL SYSTEM
L.H.D.

B3E0740W019

R.H.D.
End Of Sie

B3E0740W405

BLOWER MOTOR INSTALLATION

DPE074061020W02
1. Install the SST to the blower motor. (See 07–40–14 SST Installation Note.)
2. Install the blower motor with the SST (49 B061 015) installed, to the A/C unit. (See 07–40–17 Blower Motor
Installation Note.)
3. Install the blower motor cover from the driver’s side. (See 07–40–18 Blower Motor Cover Installation Note.)
4. Connect the blower motor connector as shown in the figure.
L.H.D.
BLOWER MOTOR
CONNECTOR

B3E0740W435
R.H.D.
5. Install the blower motor cooling pipe.
BLOWER MOTOR
CONNECTOR

B3E0740W436

07–40–16
 CONTROL SYSTEM
L.H.D.

BLOWER MOTOR
COOLING PIPE

B3E0740W024
R.H.D.
6. Remove the SST (49 B061 015) from the blower
motor.
7. Install the air guide. BLOWER MOTOR
COOLING PIPE
Caution
• Install the blower case while pressing the
dashboard insulator, otherwise the
blower case could be damaged.

8. Temporatily install the blower case.

9. Connect the air intake actuator connector.
10. Install the blower case. B3E0740W419
11. Install the airflow mode rod. (R.H.D.)
12. Install the following parts:
(1) Airflow mode actuator (L.H.D.) (See 07–40–9 AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION.)
(2) Lower panel (See 09–17–8 LOWER PANEL REMOVAL/INSTALLATION.)
(3) Bonnet release lever (See 09–14–5 BONNET LATCH AND RELEASE LEVER REMOVAL/INSTALLATION.)
(4) BCM harness grommet
(5) Car-navigation unit (See 09–20–8 CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
(6) Glove compartment (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
(7) Side panel. (passenger’s side) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(8) Front side trim (passenger’s side) (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(9) Front scuff plate inner (passenger’s side) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/
INSTALLATION.)
(10)Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(11)Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(12)Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(13)Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
07
Blower Motor Installation Note
1. Position the blower motor projection upward and install the blower motor to the A/C unit.

Caution
• To prevent damage to the sirocco fan, install the blower motor being careful that the blower motor
does not interfere with the A/C unit. Also, another person must hold the blower motor at the
installation position.

07–40–17
 CONTROL SYSTEM

BLOWER MOTOR
PROJECTION

B3E0740W022

Blower Motor Cover Installation Note

1. To install, rotate the blower motor cover until a click is heard.
L.H.D.
BLOWER MOTOR
COVER

B3E0740W023
R.H.D.

BLOWER MOTOR
COVER

B3E0740W420

Blower Case Installation Note

1. If not replacing the blower case, replace the adhesive polyurethane on the fresh-air inlet of the blower case.

Caution
• To adhere new polyurethane properly, be sure to remove the adhesive agent and adhesive
polyurethane completely.

Note
• If the blower case is removed or installed, the adhesive polyurethane can be damaged. Damaged
adhesive polyurethane could cause abnormal noise or other malfunctions, therefore replace it.

07–40–18
 CONTROL SYSTEM

2. Insert the screw into the blower case.

ADHESIVE
POLYURETHANE

B3E0740W025

L.H.D.

DPE740ZW1006
R.H.D.
3. Insert the blower case in the direction shown in
the figure.

CPJ740ZWB036

L.H.D.

07

BLOWER CASE
DPE740ZW1128

07–40–19
 CONTROL SYSTEM
R.H.D.
4. Insert and rotating it in the directions of the
arrows shown in the figure.

BLOWER CASE

DPE740ZW1107

L.H.D.

B3E0740W437
R.H.D.
End Of Sie

B3E0740W438

BLOWER MOTOR INSPECTION

DPE074061020W03
Connect battery positive voltage to blower motor terminal A, connect terminal B to ground, and then verify its
07–40–20
 CONTROL SYSTEM
operation.
• If there is any malfunction, replace the blower
motor.
End Of Sie A
A

M B

ADJ8540W108

POWER MOS FET REMOVAL/INSTALLATION

DPE074000116W01
1. Disconnect the negative battery cable.
2. Remove the side wall. (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
3. Remove the under cover. (L.H.D.)
4. Remove in the order indicated in the table.
L.H.D.

B3E0740W027
R.H.D.
1 Power MOS FET connector
2 Power MOS FET

5. Install in the reverse order of removal.

End Of Sie

2
07

B3J0740W029

POWER MOS FET INSPECTION

DPE074000116W02
1. Verify that the continuity between the power MOS FET terminals is as indicated in the table.
• If there is any malfunction, replace the power MOS FET.
• If the blower motor operation is not normal even though no malfunction can be verified, inspect the climate
control unit. (See 07–40–40 CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER].)

07–40–21
 CONTROL SYSTEM

Tester lead
Resistance (kilohm) 1 kΩ
+ - B
A B ∞
A C 6.9 2.2 kΩ * C B A
B A Continuity detected C
B C Continuity detected
C A 6.9 A
C B ∞
4.7 kΩ
End Of Sie
CPJ740ZWB110

RESISTOR REMOVAL/INSTALLATION
DPE074061015W01
L.H.D.
1. Disconnect the negative battery cable.
2. Remove the following parts:
(1) Front scuff plate inner (driver’s side) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(2) Front side trim (driver’s side) (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(3) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(4) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(5) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(6) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(7) Bonnet release lever (See 09–14–5 BONNET LATCH AND RELEASE LEVER REMOVAL/INSTALLATION.)
(8) Lower panel (See 09–17–8 LOWER PANEL REMOVAL/INSTALLATION.)
3. Disconnect the blower motor cooling pipe connected to the blower motor.
4. Disconnect the resistor connector.
5. Remove the resistor.
6. Affix the gummed tape to the thread hole area as
shown in the figure. (Do not wrap the gummed RESISTOR
tape around the backside of the resistor.)

GUMMED TAPE

DPE740ZW1007

7. Stick the screw into the thread hole.

8. Set the resistor to the A/C unit and temporarily HEXAGON
tighten the hexagon head screw. HEAD SCREW

Caution RESISTOR
• While setting the resistor, be careful not
to damage the pattern surface. Otherwise CONECTOR
it could cause a resistor operation
malfunction.
SCREW
9. Tighten the lower screw.
10. Tighten the hexagon head screw.
DPE740ZW1008
11. Connect the resistor connector.
12. Connect the blower motor cooling pipe.
13. Install the following parts:
(1) Accelerator pedal
(2) Lower panel (See 09–17–8 LOWER PANEL REMOVAL/INSTALLATION.)
(3) Bonnet release lever (See 09–14–5 BONNET LATCH AND RELEASE LEVER REMOVAL/INSTALLATION.)
(4) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(5) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(6) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/

07–40–22
 CONTROL SYSTEM
INSTALLATION.)
(7) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(8) Front side trim (driver’s side) (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(9) Front scuff plate inner (driver’s side) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
14. Connect the negative battery cable.

R.H.D.
1. Disconnect the negative battery cable.
2. Remove the following parts:
(1) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(2) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(3) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(4) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(5) Front scuff plate inner (passenger’s side) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/
INSTALLATION.)
(6) Front side trim (passenger’s side) (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(7) Side panel. (passenger’s side) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(8) Glove compartment (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
3. Remove in the order indicated in the table.

Caution
• While setting the resistor, be careful not to damage the pattern surface. Otherwise it could cause a
resistor operation malfunction.
.

2
1
B3J0740W033

1 Resister connector
2 Resister

4. Install in the reverse order of removal.

End Of Sie
RESISTOR INSPECTION 07
DPE074061015W02
1. Verify that the resistance between the resistor terminals is as shown in the table.
• If there is any malfunction, replace the resistor.
Terminal Resistance (ohm)
A—D 0.27—0.30
A—B 0.77—0.87
A—C 3.05—3.49

07–40–23
 CONTROL SYSTEM
End Of Sie

D C B A

A D B C

B3E0740W030

MAGNETIC CLUTCH DISASSEMBLY/ASSEMBLY [LF, L8]

DPE074061010W02
1. Disassemble in the order indicated in the table.
13.7—15.7 N·m 5
1 Bolt {1.4—1.6 kgf·m,
(See 07–40–25 Bolt Removal/Installation Note.) 9.4—11.5 ft·lbf}
4
2 Pressure plate
3 Shim 2 3
4 Snap ring
(See 07–40–26 Snap Ring Installation Note.)
5 A/C compressor pulley
6 Screw
(See 07–40–25 Screw Installation Note.)
6
7 Clamp
(See 07–40–26 Clamp Installation Note.)
8 Snap ring 1
(See 07–40–26 Snap Ring Installation Note.) 7
9 Stator and thermal protector
(See 07–40–25 Stator and Thermal Protector
Removal Note.)
8 10
(See 07–40–25 Stator and Thermal Protector
Installation Note.)
10 A/C compressor body

2. Assemble in the reverse order of disassembly. 9

3. Adjust the magnetic clutch clearance. (See 07– DPE740ZW1133
40–26 MAGNETIC CLUTCH ADJUSTMENT [LF,
L8].)
End Of Sie

07–40–24
 CONTROL SYSTEM
MAGNETIC CLUTCH DISASSEMBLY/ASSEMBLY [MZR-CD (RF TURBO)]
DPE074061010W01
1. Disassemble in the order indicated in the table.
1 Bolt 13.7—15.7 N·m 5
{1.4—1.6 kgf·m,
(See 07–40–25 Bolt Removal/Installation Note.)
9.4—11.5 ft·lbf}
2 Pressure plate 4
3 Shim 2 3
4 Snap ring
(See 07–40–26 Snap Ring Installation Note.)
5 A/C compressor pulley
6 Screw
(See 07–40–25 Screw Installation Note.)
7 Clamp 6
(See 07–40–26 Clamp Installation Note.)
8 Screw 1
(See 07–40–25 Screw Installation Note.)
9 Stator and thermal protector 7
(See 07–40–25 Stator and Thermal Protector
Removal Note.) 8
(See 07–40–25 Stator and Thermal Protector 10
Installation Note.)
10 A/C compressor body

2. Assemble in the reverse order of disassembly. 9

3. Adjust the magnetic clutch clearance. (See 07– DPE740ZW1009
40–26 MAGNETIC CLUTCH ADJUSTMENT
[MZR-CD (RF Turbo)].)

Bolt Removal/Installation Note

1. When removing or installing the bolt, hold the
pressure plate in place as shown in the figure. BOLT A/C COMPRESSOR
2. When installing a new A/C compressor body,
replace the recommended bolt.

A6E8540W048

Stator and Thermal Protector Removal Note

1. After removing the stator and thermal protector, completely remove the silicone adhering to the A/C 07
compressor side.

Stator and Thermal Protector Installation Note

1. Apply approx. 1 g {0.04 oz} of silicone (Shin-Etsu
Silicone KE-347W or similar) to the contact SILICONE
surface of the thermal protector, then thoroughly
install it onto the A/C compressor, leaving no SEALANT

gaps.

A6E8540W049

Screw Installation Note

1. When installing a new stator and thermal protector, replace the screw.

07–40–25
 CONTROL SYSTEM
Clamp Installation Note
1. When installing a new stator and thermal protector, replace the clamp.

Snap Ring Installation Note

1. When installing a new pressure plate, A/C
compressor pulley, stator, or A/C compressor SNAP RING
body, replace the snap ring.
A/C COMPRESSOR
End Of Sie PULLEY

SHAFT

A6E8540W050

MAGNETIC CLUTCH ADJUSTMENT [LF, L8]

DPE074061010W04
1. Measure the clearance around the entire
circumference between the pressure plate and A/
C compressor pulley using a thickness gauge.
2. Verify that the clearance.
• If not within the specification, remove the A/C COMPRESSOR
pressure plate and adjust the clearance by PULLEY
changing the shim (0.2 mm {0.008 in}, 0.5
mm {0.02 in}) or the number of shims.

Magnetic clutch clearance PRESSURE PLATE

0.3—0.5 mm {0.012—0.019 in}
A6E8540W051

End Of Sie
SHIM

A/C COMPRESSOR

DPE740ZW1109

MAGNETIC CLUTCH ADJUSTMENT [MZR-CD (RF TURBO)]

DPE074061010W05
1. Set the A/C compressor on a level block.
2. Turn on the magnetic clutch by connecting the battery positive voltage to the magnetic clutch connector
terminal and ground to the A/C compressor body.
3. Fix a dial gauge on a magnetic base and sent the MEASURE PROBE DIAL GAUGE
measuring probe onto point A on the pressure
plate surface.

MAGNETIC
BASE
LEVEL
BLOCK

A/C COMPRESSOR
DPE740ZW1016

07–40–26
 CONTROL SYSTEM
4. Turn off the magnetic clutch by disconnecting the MEASURING POINT
ground from the A/C compressor body, then
measure the dial gauge readings. 1 2
5. Measure the clearance for points B and C on the
pressure plate surface by repeating the above
Step 2 through 4.
6. Verify that the clearance.
• If not within the specification, remove the
pressure plate and adjust the clearance by
changing the shim (0.2 mm {0.008 in}, 0.5
mm {0.02 in}) or the number of shims.
3
DPE740ZW1017
Magnetic clutch clearance
0.3—0.5 mm {0.012—0.019 in}

End Of Sie
SHIM

A/C COMPRESSOR

DPE740ZW1109

MAGNETIC CLUTCH INSPECTION [LF, L8]

DPE074061010W07
1. Connect battery positive voltage to magnetic
clutch terminal A and the A/C compressor body to
ground.

+ -

B3E0740W064

2. Verify that the magnetic clutch operates.

• If there is any malfunction, replace the stator
and thermal protector. A
07
End Of Sie
A

B3E0740W034

07–40–27
 CONTROL SYSTEM
MAGNETIC CLUTCH INSPECTION [MZR-CD (RF TURBO)]
DPE074061010W06
1. Connect battery positive voltage to magnetic
clutch terminal A and the A/C compressor body to
ground.

- +

DPE740ZW1010

2. Verify that the magnetic clutch operates.

• If there is any malfunction, replace the stator
and thermal protector. A
End Of Sie
A

CPJ740ZWB117

SOLAR RADIATION SENSOR REMOVAL/INSTALLATION

DPE074061751W01
1. Disconnect the negative battery cable.
2. Pry the solar radiation sensor from the dashboard using a flathead screwdriver wrapped with protective tape.
3. Remove in the order indicated in the table.

Caution
• After the solar radiation sensor removal, the sensor connector could fall in the dashboard making
the installation difficult. Therefore, hold the rooted end of the sensor connector using a clip or
similar tool to prevent it from falling.

1 Solar radiation sensor connector

2 Solar radiation sensor
2
4. Install in the reverse order of removal.
End Of Sie 1

CPJ740ZWB007

SOLAR RADIATION SENSOR INSPECTION

DPE074061751W02
1. Shine an incandescent light (approx. 60 W) directly on the solar radiation sensor from approx. 100 mm {3.9
in}.
2. Using a tester, connect the positive (+) lead to solar radiation sensor terminal A, the negative (-) lead to
terminal B and verify that the output voltage is approx. 0.45 V.
• If the voltage is not normal, replace the solar radiation sensor.

07–40–28
 CONTROL SYSTEM
End Of Sie
A

B A

B3E0740W062

AMBIENT TEMPERATURE SENSOR REMOVAL/INSTALLATION

DPE074061764W01
1. Disconnect the negative battery cable.
2. Remove the radiator grille. (normal bumper)
3. Remove the under cover. (sport bumper)
4. Remove in the order indicated in the table.
1 Ambient temperature sensor connector
2 Ambient temperature sensor

5. Install in the reverse order of removal.

End Of Sie

2
1
CPJ740ZWB008

AMBIENT TEMPERATURE SENSOR INSPECTION

DPE074061764W02
1. Measure the temperature around the ambient temperature sensor and measure the resistance between the
ambient temperature sensor terminal.
• If the characteristics of the ambient temperature sensor are not as shown in the graph, replace the ambient
temperature sensor.
End Of Sie KILOHM
16

14

12
RESISTANCE

10
07
8

0
-10 0 10 20 30 40 50
{14} {32} {50} {68} {86} {104} {122}
TEMPERATURE °C {°F}
B3E0740W037

CABIN TEMPERATURE SENSOR REMOVAL/INSTALLATION

DPE074061758W01
1. Disconnect the negative battery cable.
2. Remove the following parts: (L.H.D.)
(1) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(2) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
07–40–29
 CONTROL SYSTEM
INSTALLATION.)
(3) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(4) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(5) Front scuff plate inner (passenger’s side) (See 09–17–19 FRONT SCUFF PLATE REMOVAL/
INSTALLATION.)
(6) Front side trim (passenger’s side) (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(7) Side panel. (passenger’s side) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(8) Glove compartment (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
3. Remove the column cover. (R.H.D.) (See 09–17–7 COLUMN COVER REMOVAL/INSTALLATION.)
4. Remove the air hose.
5. Disconnect the cabin temperature sensor connector.
6. Insert a tape-wrapped flathead screwdriver into the convex part of the cabin temperature sensor and pry it to
remove the cabin temperature sensor together with cabin temperature sensor holder. (L.H.D.)
7. Remove the cabin temperature sensor.
L.H.D.
CONNECTOR
CABIN TEMPERATURE SENSOR

AIR HOSE
HOLDER

DPE740ZW1011
R.H.D.
8. Install in the reverse order of removal. CONNECTOR
End Of Sie

AIR HOSE
CABIN TEMPERATURE SENSOR

DPE740ZW1110

CABIN TEMPERATURE SENSOR INSPECTION

DPE074061758W02
1. Measure the temperature around the cabin temperature sensor and measure the resistance between cabin
temperature sensor terminals A and B.
• If the characteristics of the cabin temperature sensor are not as shown in the graph, replace the cabin
temperature sensor.

07–40–30
 CONTROL SYSTEM
End Of Sie KILOHM
20

18

16

14

12

RESISTANCE
10

0
-10 0 10 20 30 40 50
{14} {32} {50} {68}
{86} {104} {122}
TEMPERATURE °C {°F}
DPE740ZW1111

EVAPORATOR TEMPERATURE SENSOR REMOVAL/INSTALLATION

DPE074061022W01
1. Remove the evaporator temperature sensor from the A/C unit. (See 07–11–7 A/C UNIT DISASSEMBLY/
ASSEMBLY [FULL-AUTO AIR CONDITIONER (LF, L8)].) (See 07–11–10 A/C UNIT DISASSEMBLY/
ASSEMBLY [FULL-AUTO AIR CONDITIONER (MZR-CD (RF Turbo))].) (See 07–11–14 A/C UNIT
DISASSEMBLY/ASSEMBLY [MANUAL AIR CONDITIONER (LF, L8)].) (See 07–11–17 A/C UNIT
DISASSEMBLY/ASSEMBLY [MANUAL AIR CONDITIONER (MZR-CD (RF Turbo))].)
End Of Sie
EVAPORATOR TEMPERATURE SENSOR INSPECTION
DPE074061022W02

Note
• Inspect the evaporator temperature sensor when it is installed to the A/C unit.

1. Set the fan speed MAX HI.

2. Set the temperature control at MAX COLD.
3. Set the RECIRCULATE mode.
4. Turn the A/C switch off.
5. Close all doors and windows.
6. Wait for 5 min.
7. Disconnect the evaporator temperature sensor connector.
8. Measure the temperature at the blower inlet. 07
9. Measure the resistance between the evaporator temperature sensor terminals.
• If the resistance is not as shown in the graph, replace the evaporator temperature sensor.

07–40–31
 CONTROL SYSTEM
End Of Sie KILOHM
16

14

12

RESISTANCE
10

0
-10 0 10 20 30 40 50
{14} {32} {50} {68} {86} {104} {122}
TEMPERATURE °C {°F}
B3E0740W041

REFRIGERANT PRESSURE SWITCH REMOVAL/INSTALLATION

DPE074061503W01
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See 07–10–7 REFRIGERANT RECOVERY.) (See 07–10–2
REFRIGERANT CHARGING.)
3. Remove the clip and bracket.
4. Disconnect the refrigerant pressure switch connector.
5. Remove the cooler pipe No.1. Do not allow compressor oil to spill. (See 07–11–29 REFRIGERANT LINES
REMOVAL/INSTALLATION [LF, L8].) (See 07–11–32 REFRIGERANT LINES REMOVAL/INSTALLATION
[MZR-CD (RF Turbo)].)

Caution
• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and
abnormal noise will occur. Always immediately plug all open fittings after removing any
refrigeration cycle parts to keep moisture or foreign material out of the cycle.

6. Loosen the refrigerant pressure switch using two spanners.

7. Remove in the order indicated in the table.
L.H.D.

R
8.8—10.8 N·m
COOLER PIPE No.1
{90—110 kgf·cm,
78—95 in·lbf}

REFRIGERANT PRESSURE SWITCH

DPE740ZW1012

07–40–32
 CONTROL SYSTEM
R.H.D.
8. Install in the reverse order of removal.
9. Perform the refrigerant system performance test.

8.8—10.8 N·m COOLER PIPE No.1

{90—110 kgf·cm,
78—95 in·lbf}

REFRIGERANT PRESSURE SWITCH

DPE740ZW1112

Refrigerant Pressure Switch Installation Note

1. Apply compressor oil to O-ring and connect the joint.
End Of Sie
REFRIGERANT PRESSURE SWITCH INSPECTION
DPE074061503W03
1. Install the SST (gas charging set).
2. Disconnect the refrigerant pressure switch connector.
3. Verify the high-pressure side reading of the SST (manifold gauge) and continuity between the refrigerant
pressure switch terminals.
• If there is any malfunction, replace the refrigerant pressure switch.
HI AND LO PRESSURE
0.176—0.216 2.94—3.34
{1.795—2.202, 25.53—31.31} {30.0—34.0, 427—483}
ON

OFF
0.195—0.250
0.02 {1.989—2.549, 0.39—0.79
{0.20, 2.84} 28.30—36.24} {3.98—8.05, 57—114}
or less
MPa {kgf/cm2, psi}
DPE740ZW1129

MEDIUM PRESSURE

1.08—1.38
{11.1—14.0, 158—199}
ON

07
OFF
1.39—1.65
{14.2—16.8, 202—238}
MPa {kgf/cm2, psi}
B3E0740W044

End Of Sie

HI AND LO
B
PRESSURE D A
C B C

D A

MEDIUM PRESSURE

B3E0740W045

07–40–33
 CONTROL SYSTEM
WATER HEATER UNIT REMOVAL/INSTALLATION [MZR-CD (RF TURBO)]
DPE074000170W01

Caution
• If the negative battery cable is disconnected during the purge cycle of the water heater unit, the
gas in the unit may not be properly scavenged, causing white smoke (unburnt gas) to emit from
the exhaust pipe. Before disconnecting the negative battery cable, verify that the water heater unit
is not operating (no blower fan operation noise).

1. Disconnect the negative battery cable.

2. Drain the engine coolant.
3. Remove the under cover.
4. Remove the oxidation catalytic converter. (See 01–15B–1 EXHAUST SYSTEM REMOVAL/INSTALLATION
[MZR-CD (RF Turbo)].)
5. Remove the front pipe bracket.
6. Remove the engine cover.
7. Remove the exhaust manifold insulator (upper).
8. Remove the exhaust pipe. (See 01–15B–1 EXHAUST SYSTEM REMOVAL/INSTALLATION [MZR-CD (RF
Turbo)].)
9. Disconnect the air intake hose.
10. Remove the bolts.
11. Disconnect the fuel hose.
12. Remove in the order indicated in the table.
.

3
2

4
1
DPE740ZW1014

1 Connector
2 Heater hose No.1
3 Heater hose No.3
4 Water heater unit

13. Install in the reverse order of removal.

14. Refill the engine coolant.
15. Perform water heater system initial setting. (See 07–40–34 WATER HEATER SYSTEM INITIAL SETTING
[MZR-CD (RF Turbo)].)
End Of Sie
WATER HEATER SYSTEM INITIAL SETTING [MZR-CD (RF TURBO)]
DPE074000170W02
Unlock Utility
1. Connect the WDS or equivalent to the DLC-2.
2. Select “Electrical” from the menu.
3. Select “Supplemental Heater”.
4. Select “FFH”.
5. Select “FFH Unlock Utility” and perform
procedure according to the directions on the WDS
or equivalent screen.

DLC-2
DPE702ZW1103

07–40–34
 CONTROL SYSTEM
Selftest and Prefilling Utility
1. Connect the WDS or equivalent to the DLC-2.
2. Select “Electrical” from the menu.
3. Select “Supplemental Heater”.
4. Select “FFH”.
5. Select “FFH SelfTest and Prefill Utility” and
perform procedure according to the directions on
the WDS or equivalent screen.
End Of Sie

DLC-2
DPE702ZW1103

FUEL PUMP (WATER HEATER SYSTEM) REMOVAL/INSTALLATION [MZR-CD (RF TURBO)]

DPE074013350W02
1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Disconnect the fuel hose.
4. Slide the water heater unit to the left.
5. Disconnect the fuel pump connector.
6. Remove the fuel pump.
FUEL PUMP
7. Install in the reverse order of removal. CONNECTOR
8. Perform water heater system initial setting. (See
07–40–34 WATER HEATER SYSTEM INITIAL
SETTING [MZR-CD (RF Turbo)].)
End Of Sie FUEL PUMP

FUEL HOSE

DPE740ZW1015

FUEL PUMP (WATER HEATER SYSTEM) INSPECTION [MZR-CD (RF TURBO)]

DPE074013350W01
1. Inspect for continuity between fuel pump terminal A and B using a tester.
• If there is any malfunction, replace the fuel pump (water heater system).
End Of Sie
A

B A
M
07
B

DPE740ZW1113

CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER]

DPE074061190W01
1. Disconnect the negative battery cable.
2. Remove the following parts:
(1) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(2) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(3) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(4) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(5) Center panel module. (See 09–20–6 CENTER PANEL MODULE REMOVAL/INSTALLATION.)

07–40–35
 CONTROL SYSTEM
3. Release the left and right tabs and remove as shown in the figure.
.

1
A/C

DPE740ZW1115

A/C

TAB

2
DPE740ZW1114

1 Climate control unit connector

2 Climate control unit

4. Install in the reverse order of removal.

End Of Sie
CLIMATE CONTROL UNIT REMOVAL [MANUAL AIR CONDITIONER]
DPE074061190W02
1. Disconnect the negative battery cable.
2. Remove the following parts:
(1) Front scuff plate inner (See 09–17–19 FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(2) Front side trim (See 09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(3) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(4) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(5) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(6) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(7) Bonnet release lever (See 09–14A–5 BONNET LATCH AND RELEASE LEVER REMOVAL/
INSTALLATION.)
(8) Lower panel (See 09–17–8 LOWER PANEL REMOVAL/INSTALLATION.)
(9) Side panel. (passenger’s side) (See 09–17–11 SIDE PANEL REMOVAL/INSTALLATION.)
(10)Glove compartment (See 09–17–7 GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
(11)Column cover (See 09–17–7 COLUMN COVER REMOVAL/INSTALLATION.)
3. Remove the clamp.
4. Remove the center panel module. (See 09–20–7
CENTER PANEL MODULE REMOVAL/
INSTALLATION.) CLAMP
5. Remove the wire clamp with air mix wire and
airflow mode wire from the A/C unit.

DPE740ZW1130

07–40–36
 CONTROL SYSTEM
6. Release the left and right tabs and remove in the order indicated in the table..

2
3

TAB

DPE740ZW1115

1 Fan switch connector 3 Climate control unit

2 Climate control unit connector

Wire Removal Note

1. Remove the E-ring from wire clamp.
2. Slide the wire clamp in the direction shown in the
WIRE CLAMP
figure and remove it.
End Of Sie

E-RING
DPE740ZW1116

CLIMATE CONTROL UNIT INSTALLATION [MANUAL AIR CONDITIONER]

DPE074061190W03 07
1. Install the wire clamp to A/C unit.
2. Install E-ring to each wire. (See 07–40–38 E-ring Installation Note.)
3. Pass each wire through the following routes and
connect to A/C unit.
4. Connect the climate control unit connector, fan AIRFLOW MODE WIRE
switch connector.
5. Install the climate control unit.
6. Connect each wire to A/C unit.
7. Install the center panel module. (See 09–20–6
CENTER PANEL MODULE REMOVAL/
INSTALLATION.)
8. Install the following parts:
(1) Column cover (See 09–17–7 COLUMN
COVER REMOVAL/INSTALLATION.)
(2) Glove compartment (See 09–17–7 GLOVE
COMPARTMENT REMOVAL/ AIR MIX WIRE
INSTALLATION.)
(3) Side panel. (passenger’s side) (See 09–17–
11 SIDE PANEL REMOVAL/INSTALLATION.)
(4) Lower panel (See 09–17–8 LOWER PANEL DPE740ZW1117

07–40–37
 CONTROL SYSTEM
REMOVAL/INSTALLATION.)
(5) Bonnet release lever (See 09–14–5 BONNET LATCH AND RELEASE LEVER REMOVAL/INSTALLATION.)
(6) Front console (See 09–17–13 FRONT CONSOLE REMOVAL/INSTALLATION.)
(7) Selector lever component (ATX) (See 05–18–5 SELECTOR LEVER COMPONENT REMOVAL/
INSTALLATION.)
(8) Shift lever component (MTX) (See 05–16–1 MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/
INSTALLATION.)
(9) Side wall (See 09–17–11 SIDE WALL REMOVAL/INSTALLATION.)
(10)Front side trim (See09–17–15 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(11)Front scuff plate (See09–17–19 FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
9. Connect the negative battery cable.

E-ring Installation Note

1. Install the wires as shown in the figure.
End Of Sie AIR MIX WIRE AIRFLOW MODE WIRE

77.1—78.1 mm 80.2—81.2 mm
{3.04—3.07 in} {3.16—3.19 in}

E-RING

REMOVE THE E-RING AT THE END

OF THE WIRE AND REUSE IT.

DPE740ZW1118

CLIMATE CONTROL UNIT DISASSEMBLY/ASSEMBLY [FULL-AUTO AIR CONDITIONER]

DPE074061190W04
1. Disassemble in the order indicated in the table.
1
1 Bulb
2 Body

2. Assemble in the reverse order of disassembly.

End Of Sie

CPJ740ZWB018

CLIMATE CONTROL UNIT DISASSEMBLY/ASSEMBLY [MANUAL AIR CONDITIONER]

DPE074061190W05
1. Set the airflow mode selector dial at defroster.
2. Set the temperature control dial at MAX COLD.

07–40–38
 CONTROL SYSTEM
3. Disassemble in the order indicated in the table. .

A
1 5
B
3
6
B 3 2

CPJ740ZWB019

1 Airflow mode wire 3 Illumination bulb

(See 07–40–39 Wire Disassembly Note.) 4 Knob
(See 07–40–40 Wire Assembly Note.)
5 Fan switch
2 Air mix wire
(See 07–40–39 Wire Disassembly Note.) 6 Body
(See 07–40–40 Wire Assembly Note.)

4. Assemble in the reverse order of disassembly.

Wire Disassembly Note

1. Disassemble the wires as shown in the figure.
1
2

WIRE
1

07

DPE740ZW1119

07–40–39
 CONTROL SYSTEM
Wire Assembly Note
1. Assemble the wires at the positions shown in the
figure.
End Of Sie

AIR MIX WIRE AIEFLOW MODE WIRE

DPE740ZW1120

CLIMATE CONTROL UNIT WIRE ADJUSTMENT

DPE074061190W06
Air Mix Wire
1. Set the temperature control dial at middle position (MAX HOT—MAX COLD).

Caution
• If the air mix wire is set without first fixing the air mix link position, it is possible that the air mix
door cannot be switched normally.

2. Install the wire clamp as it was originally installed.

3. Connect the air mix wire to air mix link. A/C UNIT
MIDDLE POSITION
4. Clamp the air mix wire to wire clamp.
5. Verify that the temperature control dial can move
its full stroke.
WIRE CLAMP

SET HOLE

AIR MIX SUB LINK

TEMPERATURE
CONTROL DIAL

DPE740ZW1131

Airflow Mode Wire

1. Set the airflow mode selector dial at defroster.

Caution
• If the airflow mode wire is set without first fixing the airflow mode main link position, it is possible
that the airflow mode door cannot be switched normally.

2. Install the wire clamp as it was originally installed. A/C UNIT AIRFLOW
3. Connect the airflow mode wire to airflow mode MODE MAIN
main link. DEFROSTER
LINK
4. Clamp the airflow mode wire to wire clamp.
5. Verify that the airflow mode selector dial can
move its full stroke.
End Of Sie WIRE CLAMP

SET HOLE
AIRFLOW MODE
SELECTOR DIAL
DPE740ZW1132

CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER]

DPE074061190W07
1. Install the audio.
2. Connect the climate control unit.
3. Turn the ignition switch to the ON position.
4. Connect the negative (-) lead of the tester to body ground.
5. By inserting the positive (+) lead of the tester into each climate control unit terminal, measure the voltage
according to the terminal voltage table.
• If there is any malfunction, inspect the parts under “Inspection item (s)”.
— If the parts under “Inspection item (s)” are found to be normal (except for terminal F), replace the
07–40–40
 CONTROL SYSTEM
climate control unit.
— For terminal F, first try replacing the power MOS FET. If there is still any malfunction, replace the climate
control unit.

Terminal Voltage Table (Reference)

W U S Q O M K I G E C A
X V T R P N L J H F D B

B3E0740W055

Term Signal Measurement

Connected to Voltage (V) Inspection item (s)
inal name condition
• Wiring harness: short circuit (Climate
control unit—BCM: A—4C)
Headlight switch OFF 1.0 or less
• BCM
• Headlight switch
A TNS signal BCM
• Wiring harness: continuity, short circuit
(Climate control unit—BCM: A—4C)
Headlight switch ON B+
• BCM
• Headlight switch
Headlight switch ON • Wiring harness: continuity (Climate
and panel light control control unit—instrument cluster: B—1F)
1.0 or less
switch at max. • Instrument cluster
Panel light illumination
B Instrument cluster
control Headlight switch ON • Wiring harness: short circuit (Climate
and panel light control control unit—instrument cluster: B—1F)
12
switch at min.
illumination
Moving towards COLD 12 • Wiring harness: continuity, short circuit
Motor (Climate control unit—air mix actuator:
C Air mix actuator
operation Moving towards HOT 1.0 or less C—D, E—F)
• Air mix actuator
Blower fan Fan stopped 1.0 or less • Climate control unit: terminal voltage (F)
D speed Power MOS FET Fan: manual LO 2.9
control Fan: manual HI 9.7
Moving towards COLD 1.0 or less • Wiring harness: continuity, short circuit
Motor (Climate control unit—air mix actuator:
E Air mix actuator
operation Moving towards HOT 12 E—F, C—D)
• Air mix actuator
Fan stopped B+ 1. Wiring harness: continuity, short circuit
(Climate control unit—blower motor:
07
Fan: manual LO 9.8
F—B) (Climate control unit—power
MOS FET: F—B, D—C) (Blower
motor—blower relay: A—D) (Blower
relay—fuse: A—BLOWER 40 A)
Blower • Blower motor
2. Wiring harness: continuity (Power MOS
F motor • Power MOS
FET—body ground: A—GND) (Blower
feedback FET Fan: manual HI 0.4 relay—body ground: —GND)
3. Power MOS FET
4. Blower motor
5. Blower relay
6. BLOWER 40 A fuse
7. Power MOS FET replacement
Switched to • Wiring harness: continuity, short circuit
12
Motor Airflow mode DEFROSTER (Climate control unit—airflow mode
G
operation actuator actuator: G—D, I—F)
Switched to VENT 1.0 or less • Airflow mode actuator
• Wiring harness: continuity, short circuit
(Climate control unit— fuse: H—ROOM
H B+ ROOM 15 A fuse Under any condition B+
15 A)
• ROOM 15 A fuse

07–40–41
 CONTROL SYSTEM
Term Signal Measurement
Connected to Voltage (V) Inspection item (s)
inal name condition
Switched to • Wiring harness: continuity, short circuit
1.0 or less
Motor Airflow mode DEFROSTER (Climate control unit—airflow mode
I
operation actuator actuator: I—F, G—D)
Switched to VENT 12 • Airflow mode actuator
VENT 4.5 • Wiring harness: continuity, short circuit
BI-LEVEL 3.6 (Climate control unit—airflow mode
Potentiomet Airflow mode actuator: J—C)
J HEAT 2.6 • Airflow mode actuator
er input actuator
HEAT/DEF 1.7 • Climate control unit: terminal voltage (P)
DEFROSTER 0.7
• Wiring harness: continuity, short circuit
(Climate control unit— fuse: K—A/C 10
IG SW ON B+
A)
K IG2 A/C 10 A fuse • A/C 10 A fuse
• Wiring harness: continuity, short circuit
IG SW LOCK 1.0 or less (Climate control unit— fuse: K—A/C 10
A)
Set temperature at • Wiring harness: continuity, short circuit
0.7
MAX COLD (Climate control unit—air mix actuator:
Potentiomet
L Air mix actuator L—C)
er input Set temperature at
4.5 • Air mix actuator
MAX HOT • Climate control unit: terminal voltage (P)
Switched to • Wiring harness: continuity, short circuit
1.0 or less
Motor RECIRCULATE (Climate control unit—air intake
M Air intake actuator
operation actuator: M—G, O—E, Q—C)
Switched to FRESH 12 • Air intake actuator
• Wiring harness: continuity (Climate
control unit—ambient temperature
sensor: U—A, N—B)
Compared with
Ambient • Wiring harness: short circuit (Climate
Ambient temperature detected Refer to
N temperature control unit—ambient temperature
temperature sensor by ambient graph 1
sensor input sensor: N—B)
temperature sensor
• Ambient temperature sensor
• Climate control unit: terminal voltage (K,
V)
Switched to • Wiring harness: continuity, short circuit
12
Motor RECIRCULATE (Climate control unit—air intake
O Air intake actuator
operation actuator: M—G, O—E)
Switched to FRESH 1.0 or less • Air intake actuator
• Wiring harness: short circuit (Climate
control unit—air mix actuator, airflow
mode actuator, solar radiation sensor:
• Air mix actuator P—A, A, A)
• Airflow mode IG SW ON 5.2 • Air mix actuator
P +5 V actuator • Airflow mode actuator
• Solar radiation • Solar radiation sensor
sensor • Climate control unit: terminal voltage (K,
V)
IG SW LOCK 0 • Climate control unit replacement
Switched to • Wiring harness: continuity, short circuit
1.0 or less
Motor RECIRCULATE (Climate control unit—air intake
Q Air intake actuator
operation actuator: Q—C, M—G)
Switched to FRESH 12 • Air intake actuator
• Wiring harness: continuity (Climate
control unit—cabin temperature sensor:
R—B, U—A)
Compared with
Cabin • Wiring harness: short circuit (Climate
Cabin temperature temperature detected Refer to
R temperature control unit—cabin temperature sensor:
sensor by cabin temperature graph 2
sensor input R—B)
sensor
• Cabin temperature sensor
• Climate control unit: terminal voltage (K,
V)

07–40–42
 CONTROL SYSTEM
Term Signal Measurement
Connected to Voltage (V) Inspection item (s)
inal name condition
Incandescent light • Wiring harness: continuity (Climate
(approx. 60 W) shined control unit—solar radiation sensor: S—
directly on the solar B, P—A)
Solar 4.0
Solar radiation radiation sensor from a • Climate control unit: terminal voltage (P)
S radiation distance of approx. • Solar radiation sensor
sensor
sensor input 100 mm {3.9 in}
Blocking light to solar
1.0 or less
radiation sensor
• Wiring harness: continuity (Climate
control unit—evaporator temperature
sensor: T—B, U—A)
Compared with
Evaporator • Wiring harness: short circuit (Climate
Evaporator temperature detected Refer to
T temperature control unit—evaporator temperature
temperature sensor by evaporator graph 3
sensor input sensor: T—B)
temperature sensor
• Evaporator temperature sensor
• Climate control unit: terminal voltage (K,
V)
• Ambient • Climate control unit: terminal voltage (V)
temperature
sensor
• Cabin
temperature
sensor
U Sensor GND Under any condition 1.0 or less
• Evaporator
temperature
sensor
• Air mix actuator
• Airflow mode
actuator
• Wiring harness: continuity (Climate
V GND Body ground Under any condition 1.0 or less
control unit—GND: V—GND)
W Signal — — — —
X Signal — — — —

GRAPH 1 (AMBIENT TEMPERATURE SENSOR) GRAPH 2 (CABIN TEMPERATURE SENSOR)

(V) 5 (V) 5

4 4

3 3
VOLTAGE
VOLTAGE

2 2 07

1 1

0 0
-20 0 20 40 °C {°F} -20 0 20 40 °C {°F}
{-4} {32} {68} {104} {-4} {32} {68} {104}
TEMPERATURE TEMPERATURE

07–40–43
 CONTROL SYSTEM

GRAPH 3 (EVAPORATOR TEMPERATURE SENSOR)

(V) 5

3
VOLTAGE

—
2

0
-20 0 20 40 °C {°F}
{-4} {32} {68} {104}
TEMPERATURE

End Of Sie
CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER]
DPE074061190W09
1. Connect the climate control unit connector.
2. Turn the ignition switch to the ON position.
3. Connect the negative (-) lead of the tester to body ground.
4. By inserting the positive (+) lead of the tester into each climate control unit terminal, measure the voltage
according to the terminal voltage table.
• If there is any malfunction, inspect the parts under “Inspection item (s)”.
— If the parts under “Inspection item (s)” are found to be normal, replace the climate control unit.

Terminal Voltage Table (Reference)

W U S Q O M K I G E C A
X V T R P N L J H F D B

B3E0740W058

Term Signal Measurement

Connected to Voltage (V) Inspection item (s)
inal name condition
A — — — — —
• Wiring harness: short circuit (Climate
control unit—BCM: B—4C)
Headlight switch OFF 1.0 or less
• BCM
• Headlight switch
B TNS signal BCM
• Wiring harness: continuity, short circuit
(Climate control unit—BCM: B—4C)
Headlight switch ON B+
• BCM
• Headlight switch
• Wiring harness: continuity (Climate
FAN switch ON 1.0 or less control unit—fan switch: C—C)
• Fan switch
FAN ON/
C
OFF
Fan switch • Wiring harness: continuity (Climate
control unit—fan switch: C—C)
FAN switch OFF 12
• Climate control unit: terminal voltage (X)
• Fan switch
D — — — — —
• Wiring harness: continuity (Climate
A/C switch ON, fan
1.0 or less control unit—BCM: E—3S)
switch at 1st
E A/C BCM • BCM
• Wiring harness: continuity, short circuit
A/C switch OFF B+
(Climate control unit—BCM: E—3S)

07–40–44
 CONTROL SYSTEM
Term Signal Measurement
Connected to Voltage (V) Inspection item (s)
inal name condition
Headlight switch ON • Wiring harness: continuity (Climate
and panel light control control unit—instrument cluster: F—1F)
1.0 or less
switch at max. • Instrument cluster
Panel light illumination
F Instrument cluster
control Headlight switch ON • Wiring harness: short circuit (Climate
and panel light control control unit—instrument cluster: F—1F)
12
switch at min.
illumination
Rear • Wiring harness: continuity (Climate
Rear window defroster
window 1.0 or less control unit—BCM: G—3P)
switch ONt
defroster • BCM
G BCM
switch • Wiring harness: short circuit (Climate
indicator Rear window defroster
B+ control unit—BCM: G—3P)
switch OFF
light • BCM
H — — — — —
Rear Rear window defroster • Wiring harness: continuity, short circuit
window switch ONt 1.0 or more (Climate control unit—BCM: I—3V)
I BCM • Climate control unit: terminal voltage (L)
defroster Rear window defroster → 5.04
switch switch OFF • BCM
J — — — — —
Evaporator • Climate control unit: terminal voltage (L)
K Sensor GND Under any condition 1.0 or less
temperature sensor
• Wiring harness: continuity (Climate
L GND Body ground Under any condition 1.0 or less
control unit—GND: L—GND)
• Wiring harness: continuity (Climate
control unit—evaporator temperature
sensor: M—B, K—A)
Compared with
Evaporator • Wiring harness: short circuit (Climate
Evaporator temperature detected Refer to
M temperature control unit—evaporator temperature
temperature sensor by evaporator graph 1
sensor input sensor: M—B)
temperature sensor
• Evaporator temperature sensor
• Climate control unit: terminal voltage (L,
X)
N — — — — —
O — — — — —
Switched to • Wiring harness: continuity, short circuit
10.9
Motor RECIRCULATE (Climate control unit—air intake
P Air intake actuator
operation actuator: P—C, T—G)
Switched to FRESH 1.41 • Air intake actuator
Q — — — — —
Switched to • Wiring harness: continuity, short circuit
9.90
Motor RECIRCULATE (Climate control unit—air intake
R Air intake actuator 07
operation actuator: T—G, R—E)
Switched to FRESH 1.39 • Air intake actuator
S — — — — —
Switched to • Wiring harness: continuity, short circuit
1.0 or less
Motor RECIRCULATE (Climate control unit—air intake
T Air intake actuator
operation actuator: T—G, R—E, P—C)
Switched to FRESH 10.63 • Air intake actuator
U — — — — —
• Wiring harness: continuity, short circuit
(Climate control unit— fuse: V—ROOM
V B+ ROOM 15 A fuse Under any condition B+
15 A)
• ROOM 15 A fuse
W — — — — —
• Wiring harness: continuity, short circuit
(Climate control unit— fuse: X—A/C 10
IG SW ON B+
A)
X IG2 A/C 10 A fuse • A/C 10 A fuse
• Wiring harness: continuity, short circuit
IG SW LOCK 1.0 or less (Climate control unit— fuse: X—A/C 10
A)

07–40–45
 CONTROL SYSTEM

GRAPH 1 (EVAPORATOR TEMPERATURE SENSOR)

(V) 5

3
VOLTAGE

2
—

0
-20 0 20 40 °C {°F}
{-4} {32} {68} {104}
TEMPERATURE

End Of Sie
FAN SWITCH INSPECTION
DPE074061050W01
1. Remove the climate control unit.
2. Verify that the continuity between the fan switch terminals is as indicated in the table.
• If there is any malfunction, replace the fan
switch.
A D F E C
E C A
4 3 2 1 D
OFF F *

DPE740ZW1125

End Of Sie
: Continuity
Switch Terminal
position A C D E F
0
1
2
3
4

DPE740ZW1126

07–40–46
 TECHNICAL DATA

07–50 TECHNICAL DATA

HVAC TECHNICAL DATA . . . . . . . . . . . . 07–50–1

End of Toc
HVAC TECHNICAL DATA
DPE075000000W01

Item Specification
REFRIGERANT SYSTEM
Type R-134a
Refrigerant
Regular amount (approx. quantity) (g {oz}) 500 {17.65}
BASIC SYSTEM
Type ATMOS GU10
A/C compressor Lubrication oil Sealed volume
(approx. (ml {cc, fl oz}) 150 {150, 5.07}
quantity)
CONTROL SYSTEM
A/C compressor Magnetic clutch clearance (mm {in}) 0.30—0.50 {0.012—0.019}

End Of Sie

07

07–50–1
 SERVICE TOOLS

07–60 SERVICE TOOLS

HEATER, VENTILATION & AIR CONDITIONING
(HVAC) SST . . . . . . . . . . . . . . . . . . . . . . 07–60–1

End of Toc
HEATER, VENTILATION & AIR CONDITIONING (HVAC) SST
DPE076000000W01

49 B061 014 49 G061 001 49 B061 015

Spring Lock Spring Lock Holder

Coupling Coupling
Disconnect Tool Disconnect Tool

49 C061 0A0B 49 C061 013 WDS

Gas Charge Set Gas Leak Tester

End Of Sie

07

07–60–1