Power Supply and Circuit
Power Supply and Circuit
K ELECTRICAL
B
SECTION
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS C
E
CONTENTS
PRECAUTIONS .......................................................... 3 INSPECTION IN AUTO ACTIVE TEST MODE ... 30 F
Precautions for Supplemental Restraint System CONCEPT OF AUTO ACTIVE TEST .................. 31
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN- Schematic ............................................................... 33
SIONER” .................................................................. 3 IPDM E/R Terminal Arrangement ........................... 34 G
Maintenance Information .......................................... 3 Inspection With CONSULT-II (Self-Diagnosis) ....... 35
RHD MODELS ...................................................... 3 IPDM E/R Terminal Inspection ................................ 37
LHD MODELS ....................................................... 3 IPDM E/R Power Supply and Ground Circuit Check... 38
H
POWER SUPPLY ROUTING ...................................... 4 Diagnosis of IPDM E/R Integrated Relay ............... 39
Schematic ................................................................ 4 Removal and Installation of IPDM E/R ................... 41
Wiring Diagram — POWER — ................................. 5 REMOVAL ........................................................... 41
BATTERY POWER SUPPLY — IGNITION SW. INSTALLATION ................................................... 41 I
IN ANY POSITION ................................................ 5 GROUND ................................................................... 42
ACCESSORY POWER SUPPLY — IGNITION Ground Distribution ................................................. 42
SW. IN “ACC” OR “ON” ........................................11 MAIN HARNESS ................................................. 42 J
IGNITION POWER SUPPLY — IGNITION SW. ENGINE ROOM HARNESS ................................ 46
IN “ON” AND/OR “START” .................................. 12 ENGINE CONTROL HARNESS/QR ENGINE
Fuse ....................................................................... 17 MODELS ............................................................. 49
PG
Fusible Link ............................................................ 17 BODY HARNESS ................................................ 50
Circuit Breaker ....................................................... 17 HARNESS ................................................................. 54
IPDM E/R (INTELLIGENT POWER DISTRIBUTION Harness Layout ...................................................... 54
MODULE ENGINE ROOM) ...................................... 18 HOW TO READ HARNESS LAYOUTS ............... 54 L
System Description ................................................ 18 OUTLINE/LHD MODELS .................................... 55
SYSTEMS CONTROLLED BY IPDM E/R ........... 18 OUTLINE/RHD MODELS .................................... 56
FAIL-SAFE FUNCTION ....................................... 19 MAIN HARNESS/LHD MODELS ......................... 57 M
IPDM E/R STATUS CONTROL ........................... 19 MAIN HARNESS/RHD MODELS ........................ 59
FUNCTION OF IPDM E/R ................................... 19 ENGINE ROOM HARNESS ................................ 61
CAN Communication .............................................. 20 ENGINE CONTROL HARNESS .......................... 63
A/T MODELS ...................................................... 20 BODY HARNESS ................................................ 65
M/T MODELS ...................................................... 23 ROOM LAMP HARNESS .................................... 68
Function of Detecting Ignition Relay Malfunction ... 25 FRONT DOOR HARNESS LH SIDE/LHD MOD-
CONSULT-II Functions ........................................... 25 ELS ...................................................................... 69
CONSULT-II BASIC OPERATION ....................... 25 FRONT DOOR HARNESS LH SIDE/RHD MOD-
SELF-DIAG RESULTS ........................................ 26 ELS ...................................................................... 70
DATA MONITOR ................................................. 27 FRONT DOOR HARNESS RH SIDE/LHD MOD-
CAN TROUBLE DIAGNOSIS SUPPORT MON- ELS ...................................................................... 71
ITOR .................................................................... 28 FRONT DOOR HARNESS RH SIDE/RHD MOD-
ACTIVE TEST ..................................................... 28 ELS ...................................................................... 72
Auto Active Test ..................................................... 29 REAR DOOR HARNESS LH ............................... 73
DESCRIPTION .................................................... 29 REAR DOOR HARNESS RH .............................. 74
OPERATION PROCEDURE ............................... 29 Wiring Diagram Codes (Cell Codes) ...................... 75
PG-1
ELECTRICAL UNITS LOCATION ............................. 78 SMJ (SUPER MULTIPLE JUNCTION) ......................84
Electrical Units Location ......................................... 78 Terminal Arrangement .............................................84
ENGINE COMPARTMENT .................................. 78 STANDARDIZED RELAY ..........................................85
PASSENGER COMPARTMENT/LHD MODELS... 79 Description ..............................................................85
HARNESS CONNECTOR ......................................... 81 NORMAL OPEN, NORMAL CLOSED AND
Description .............................................................. 81 MIXED TYPE RELAYS ........................................85
HARNESS CONNECTOR (TAB-LOCKING TYPE OF STANDARDIZED RELAYS ..................85
TYPE) .................................................................. 81 FUSE BLOCK - JUNCTION BOX (J/B) ....................87
HARNESS CONNECTOR (SLIDE-LOCKING Terminal Arrangement .............................................87
TYPE) .................................................................. 82 FUSE AND FUSIBLE LINK BOX ..............................88
ELECTRICAL UNITS ................................................ 83 Terminal Arrangement .............................................88
Terminal Arrangement ............................................ 83
PG-2
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER” EKS008IN
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual. C
WARNING:
● To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer. D
● Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section. E
● Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness connec-
tors. F
Maintenance Information EKS008IP
PG-3
POWER SUPPLY ROUTING
Schematic EKS00795
MKWA1359E
PG-4
POWER SUPPLY ROUTING
PG
MKWA1324E
PG-5
POWER SUPPLY ROUTING
MKWA1325E
PG-6
POWER SUPPLY ROUTING
PG
MKWA1326E
PG-7
POWER SUPPLY ROUTING
MKWA1327E
PG-8
POWER SUPPLY ROUTING
PG
MKWA1328E
PG-9
POWER SUPPLY ROUTING
MKWA1329E
PG-10
POWER SUPPLY ROUTING
PG
MKWA1330E
PG-11
POWER SUPPLY ROUTING
MKWA1331E
PG-12
POWER SUPPLY ROUTING
PG
MKWA1332E
PG-13
POWER SUPPLY ROUTING
MKWA1333E
PG-14
POWER SUPPLY ROUTING
PG
MKWA1334E
PG-15
POWER SUPPLY ROUTING
MKWA1335E
PG-16
POWER SUPPLY ROUTING
Fuse EKS00797
A
● If fuse is blown, be sure to eliminate cause of incident before
installing new fuse.
● Use fuse of specified rating. Never use fuse of more than speci-
fied rating. B
● Do not partially install fuse; always insert it into fuse holder prop-
erly.
C
● Remove fuse for “ELECTRICAL PARTS (BAT)” if vehicle is not
used for a long period of time.
D
CEL083
E
A melted fusible link can be detected either by visual inspection or by
feeling with finger tip. If its condition is questionable, use circuit
tester or test lamp.
CAUTION: F
● If fusible link should melt, it is possible that critical circuit
(power supply or large current carrying circuit) is shorted.
In such a case, carefully check and eliminate cause of inci- G
dent.
● Never wrap outside of fusible link with vinyl tape. Important:
Never let fusible link touch any other wiring harness, vinyl H
or rubber parts. CKWA0098E
L
SEL109W
PG-17
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
● IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) integrates the relay box
and the fuse box which has been conventionally placed in the engine room. It controls the built-in relay
with the control circuit in IPDM E/R.
● IPDM E/R integrated control circuit performs ON-OFF control of the relay and transmission of various sig-
nals (oil pressure switch, park/neutral position switch, reverse switch) through CAN communication with
BCM and ECM.
NOTE:
All IPDM E/R integrated relays can never be removed.
SYSTEMS CONTROLLED BY IPDM E/R
1. Lamp control
Using the CAN communication line, it receives signals from BCM and controls following lamps:
– Headlamps (Hi, Lo)
– Parking lamps, tail lamps and license plate lamp
– Front fog lamps
2. Front wiper control
Using the CAN communication line, it receives signals from BCM and controls front wiper.
3. Headlamp washer control
Using the CAN communication line, it receives signals from BCM and controls headlamp washer.
4. Rear window defogger control
Using the CAN communication line, it receives signals from BCM and controls rear window defogger.
5. A/C compressor control
Using the CAN communication line, it receives signals from ECM and controls A/C compressor.
6. Cooling fan control
Using the CAN communication line, it receives signals from ECM and controls cooling fan.
PG-18
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
FAIL-SAFE FUNCTION
● When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control. A
After CAN communication recovers normally, it also returns to normal control.
● Operation of control parts by IPDM E/R during fail-safe mode is as follows:
B
Controlled parts Fail-safe mode
With the ignition switch ON, the headlamp (low) is ON.
Headlamp
With the ignition switch OFF, the headlamp (low) is OFF.
C
With the ignition switch ON, the tail lamp is ON.
Parking lamp/ license plate lamp/ tail lamp
With the ignition switch OFF, the tail lamp is OFF.
With the ignition switch ON, the cooling fan HI operates. D
Cooling fan
With the ignition switch OFF, the cooling fan stops.
Until the ignition switch is turned off, the front wiper LO and HI remains in
Front wiper
the same status it was in just before fail-safe control was initiated.
E
Rear window defogger Rear window defogger is OFF
Front fog lamp Front fog lamp is OFF
Headlamp washer Headlamp washer is OFF F
A/C compressor A/C compressor is OFF
● When the IPDM E/R is not controlling any load, a sleep request signal is received from the BCM and
the mode is switched to sleep waiting status. I
2. Sleep waiting status
● Process to stop CAN communication is activated.
● All systems controlled by IPDM E/R are stopped. When 1 second has elapsed after CAN communica-
J
tion with other control units is stopped, mode switches to sleep status.
3. Sleep status
● The IPDM E/R operates in low current consumption mode.
PG
● CAN communication is not active.
● When a change in the CAN communication line or ignition switch ON is detected, the mode switches to
L
CAN communication status.
FUNCTION OF IPDM E/R
● Park/neutral position switch signal output function M
The signal (ON/OFF) input from the Park/neutral position is output to ECM.
● Oil pressure switch output function
The signal (ON/OFF) input from the oil pressure switch is output to the combination meter using the CAN
communication line.
● Reverse switch signal output function
The signal (ON/OFF) input from the reverse switch is output to BCM using the CAN communication line.
PG-19
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. A modern
vehicle is equipped with many electronic control units, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, two control units are connected
with two communication lines (CAN H-line, L-line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
A/T MODELS
System diagram
● With intelligent key unit
MKIB0273E
MKIB0274E
PG-20
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-21
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
ABS
actuator
Combi- Intelli- Drive EPS and
IPDM E/
Signals ECM nation gent Key com- control BCM electric TCM
R
meter. unit puter unit unit
(control
unit)
Rear window defogger control
R T
signal
Drive computer signal T R
EPS warning lamp signal R R T
ABS warning lamp signal R R T
ABS operation signal R T
Brake warning lamp signal R R T
Buck-up lamp signal R T
Fuel low warning signal T R
Battery charge malfunction sig-
T R
nal
Air bag system warning signal T R
Brake fluid level warning signal T R
Engine coolant temperature
T R
warning signal
Front fog lamp request signal R T R
Rear fog lamp status signal R T
Headlamp washer request signal T R
Door lock/unlock request signal R T
Door lock/unlock status signal R T
KEY indicator signal R T
LOCK indicator signal R T
PG-22
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
M/T MODELS
System diagram A
● With intelligent key unit
MKIB0275E
PG
L
MKIB0276E
PG-23
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
ABS
actuator
Combina- Intelli-
Drive EPS con- and elec- IPDM E/
Signals ECM tion gent Key BCM
computer trol unit tric unit R
meter. unit
(control
unit)
Position light status signal R T
Low beam request signal T R
Low beam status signal R T
High beam request signal R T R
High beam status signal R T
Day time light request signal T R
R R R T
Vehicle speed signal
R T R R R R
Sleep/wake up signal R R T R
Door switch signal R R R T R
Turn indicator signal R T
R T
Buzzer output signal
R T
MI signal T R R
Front wiper request signal T R
Front wiper stop position signal R T
Rear window defogger switch signal T R
Rear window defogger control sig-
R T
nal
Drive computer signal T R
EPS warning indicator signal R R T
ABS warning lamp signal R R T
ABS operation signal R R T
Brake warning lamp signal R T
Buck-up lamp signal R T
Fuel low warning signal T R
Battery charge malfunction signal T R
Air bag system warning signal T R
Brake fluid level warning signal T R
Engine coolant temperature warn-
T R
ing signal
Front fog lamp request signal R T R
Rear fog lamp status signal R T
Headlamp washer request signal T R
Door lock/unlock request signal R T
Door lock/unlock status signal R T
KEY indicator signal R T
LOCK indicator signal R T
PG-24
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
A
● When a contact point of the integrated ignition relay is stuck and cannot be turned OFF, the IPDM E/R
turns ON tail lamp relay for 10 minutes to indicate IPDM E/R malfunction.
NOTE:
When the ignition switch is turned ON, the tail lamp is off. B
CONSULT-II performs the following functions with combination of data receiving, command and transmission C
using the CAN communication line from the IPDM E/R.
Inspection Item, Diagnosis Mode Description
D
SELF-DIAG RESULTS The IPDM E/R performs diagnosis of the CAN communication and self-diagnosis.
DATA MONITOR The input/output data of the IPDM E/R is displayed in real time.
ACTIVE TEST The IPDM E/R sends a drive signal to electronic components to check their operation. E
PBIA3525E
I
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “IPDM E/R” on “SELECT SYSTEM” screen.
J
● If “IPDM E/R” is not displayed, print “SELECT SYSTEM”
screen, then refer to GI-36, "CONSULT-II Data Link Connec-
tor (DLC) Circuit" .
PG
MKIB0521E
MKIB0522E
PG-25
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
SELF-DIAG RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Check display content in self-diagnostic results.
Display Item List
TIME
Display Items Malfunction Return Condition Possible causes
CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING — — — —
MAY BE REQUIRED.
Any of or several items below
have malfunctions.
● If CAN communication reception/transmission data
● CAN CIRC 1
has an malfunction, or if any of the control units
malfunction, data reception/transmission cannot be ● CAN CIRC 2
CAN COMM CIRCUIT confirmed. × ×
● CAN CIRC 3
● When the data in CAN communication is not ● CAN1 STAT
received before the specified time ● CAN2 STAT
● CAN3 STAT
When the ignition switch is not ON position, the igni- Ignition relay (integrated in
IGN RELAY ON × ×
tion relay in the IPDM E/R is ON. IPDM E/R)
When the ignition switch is ON position, the ignition Ignition relay (integrated in
IGN RELAY OFF × ×
relay in the IPDM E/R is OFF. IPDM E/R)
Malfunction is detected with the integrated EEPROM
EEPROM × × IPDM E/R
memory diagnosis.
×:Applicable
NOTE:
The details for display of the period are as follows:
● CRNT: Error currently detected with IPDM E/R.
● PAST: Error detected in the past and memorized with IPDM E/R.
PG-26
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
DATA MONITOR
Operation Procedure A
1. Touch “DATA MONITOR” on “SELECT MONITOR ITEM ” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECT FROM MENU” on the “DATA MONITOR” screen.
B
ALL SIGNALS All items will be monitored.
MAIN SIGNALS Monitor the predetermined item.
C
SELECT FROM MENU Select any item for monitoring.
3. Touch “START”.
4. Touch the required monitoring item on “SELECT ITEM MENU”. In “ALL SIGNALS”, all items are moni- D
tored. In “MAIN SIGNALS”, predetermined items are monitored.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”. E
All Items, Main Items, Select Item Menu
Monitor item selection
F
Item name Display or unit SELECT Description
MAIN
ALL SIGNALS FROM
SIGNALS
MENU
MOTOR FAN REQ 1/2/3/4 × × × Signal status input from ECM G
A/C COMP REQ ON/OFF × × × Signal status input from ECM
TAIL & CLR REQ ON/OFF × × × Signal status input from BCM
H
HL LO REQ ON/OFF × × × Signal status input from BCM
HL HI REQ ON/OFF × × × Signal status input from BCM
FR FOG REQ ON/OFF × × × Signal status input from BCM I
This item cannot be monitored.
HL WASHER REQ ON/OFF × ×
(No change of display)
FR WIP REQ OFF/1LO/LO/HI × × × Signal status input from BCM J
WIP AUTO STOP ON/OFF × × × Output status of IPDM E/R
WIP PROTECTION OFF/LS/HS/Block × × Control status of IPDM E/R
PG
ST RLY REQ ON/OFF × × Status of input signal CAUTION
Ignition relay status monitored with IPDM
IGN RLY STATUS ON/OFF × × ×
E/R L
RR DEF REQ ON/OFF × × × Signal status input from BCM
RR DEF STOP REQ ON/OFF × × Input signal status
M
ALT LOAD % × ×
This item cannot be monitored.
ALT CRNT A × ×
(No change of display)
ALT NO ## × ×
BAT VOLT V × × Value measured with IPDM E/R
ENG COOL TEMP °C × × Signal status input from ECM
OIL P SW OPEN/CLOSE × × Signal status input in IPDM E/R
REV SW OPEN/CLOSE × × Signal status input in IPDM E/R
×:applicable
NOTE:
● Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the
display may not be correct.
● The vehicle without the intelligent key system displays only ON without change.
PG-27
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
ACTIVE TEST
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG–MODE” screen.
2. Touch item to be tested, and check operation.
3. Touch “START”.
4. Touch “STOP” while testing to stop the operation.
Test item CONSULT-II screen display Description
With a certain operation (OFF, HI ON, LO ON), the head-
Headlamp (HI, LO) output HEADLAMP
lamp relay (Lo, Hi) can be operated.
With a certain ON-OFF operation, the fog lamp relay can
Front fog lamp output FRONT FOG LAMP
be operated.
With a certain ON-OFF operation, the tail lamp relay can
Tail lamp output TAIL LAMP
be operated.
With a certain ON-OFF operation, the rear window defog-
Rear window defogger output REAR DEFOGGER
ger relay can be operated.
With a certain operation (OFF, HI ON, LO ON), the front
Front wiper (HI, LO) output FRONT WIPER
wiper relay (Lo, Hi) can be operated.
With a certain operation (OFF, Status 1, Status 2, Status 3),
Cooling fan output MOTOR FAN
the cooling fan can be operated.
With a certain ON-OFF operation, the headlamp washer
Headlamp washer output HEADLAMP WASHER
can be operated.
PG-28
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
DESCRIPTION A
● In the auto active test, the IPDM E/R sends a drive signal to the following systems to check operation.
– Rear window defogger
B
– Front wiper (Low, High)
– Parking lamps, license lamps, tail lamps
– Front fog lamp
C
– Headlamp (Low, High)
– Headlamp washer
– A/C compressor (magnetic clutch) D
– Cooling fan
OPERATION PROCEDURE
1. Close hood, and keep wiper arms off the windshield (to prevent glass damage by wiper operation). E
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF. F
3. Turn ignition switch ON, and within 20 seconds, press the driver's seat door switch 10 times. Then turn
ignition switch OFF.
G
CAUTION:
Keep passenger's the seat door closed.
4. Turn ignition switch ON within 10 seconds.
H
5. When auto active test mode is actuated, oil pressure warning lamp starts blinking.
6. After a series of operations is repeated 3 times, auto active test is completed.
NOTE: I
When the auto active test mode has to be cancelled halfway, turn ignition switch OFF.
CAUTION:
When the auto active test cannot be started, check the oil pressure switch system DI-54, "Oil Pressure
J
Warning Lamp Stays Off (Ignition Switch ON)" and the BL-48, "Check Door Switch" .
PG
PG-29
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MKIB0523E
*1: Step 4 will be skipped, if the front fog lamp is not equipped. (In the case, next step will be start after 10 sec-
onds.)
*2: Step 7 will be skipped, if the headlamp washer is not equipped. (In the case, next step will be start after 10
seconds.)
PG-30
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-31
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Reference
Symptom Inspection Contents Possible causes
page
● CAN communication signal between BCM and ECM*.
● CAN communication signal between ECM and IPDM E/R*.
Perform auto YES
● BCM signal input system
The A/C com- active test.
pressor is inop- Does mag- ● Signal input system of ECM. ATC-39
erative. netic clutch
● Magnetic clutch inoperative.
operate?
NO ● Harness for open or short between IPDM E/R and magnetic clutch.
● IPDM E/R (integrated relay) malfunction
Perform auto ● Harness for open or short between IPDM E/R and oil pressure switch.
Oil pressure YES
active test. ● Oil pressure switch malfunction
warning lamp
Does oil pres- DI-48
does not oper- ● CAN communication signal between IPDM E/R and combination meter*.
sure warning
ate. NO
lamp blink? ● Combination meter
*: Perform IPDM E/R self-diagnosis with CONSULT-II. Refer to PG-35, "Inspection With CONSULT-II (Self-Diagnosis)"
PG-32
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Schematic EKS0080U
PG
MKWA1360E
NOTE:
Refer to each control system for details of connecting parts.
PG-33
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MKWA1370E
PG-34
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
1. Connect CONSULT-II and select “IPDM E/R” on the Diagnosis System Selection screen.
2. Select “SELF-DIAG RESULTS” on the diagnosis mode selection screen. B
3. Check display content in self-diagnostic results.
TIME C
CONSULT-II display CONSULT-II display code CRN PAS Details of diagnosis result
T T
NO DTC IS DETECTED. D
FURTHER TESTING MAY BE — — — —
REQUIRED.
IGN RELAY ON B2098 × × Ignition relay malfunction (integrated in IPDM E/R)
E
IGN RELAY OFF B2099 × × Ignition relay malfunction (integrated in IPDM E/R)
EEPROM B2100 × × IPDM E/R malfunction
Any of or several items below have malfunction. F
● CAN CIRC 1
● CAN CIRC 2
CAN COMM CIRCUIT U1000 × × ● CAN CIRC 3 G
● CAN1 STAT
● CAN2 STAT
H
● CAN3 STAT
×: Applicable
CAUTION: I
If errors of the CAN communication system and the ignition relay ON or OFF are displayed at the same
time after the self-diagnostic result, replace the IPDM E/R and perform the self-diagnosis again.
NOTE: J
The details for display of the period are as follows:
● CRNT: Malfunction currently detected with IPDM E/R.
● PAST: Malfunction detected in the past and memorized with IPDM E/R. PG
Contents displayed
NO DTC IS DETECTED. FURTHER TESTING MAY BE REQUIRED.>>INSPECTION END.
CAN COMM CIRCUIT>>Print out the self-diagnostic result and go to 2. L
IGN RELAY ON>>Replace IPDM E/R.
IGN RELAY OFF>>Replace IPDM E/R.
EEPROM>>Replace IPDM E/R. M
PG-35
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
2. SYMPTOM CHECK
1. Select “CAN DIAG SUPPORT MNTR” on the DATA MONITOR.
2. Select “START” and check display contents.
Data monitor display contents
Diagnosis item
Normal conditions Malfunction conditions (example)
CAN CIRC 1 OK UNKWN
CAN CIRC 2 OK UNKWN
CAN CIRC 3 OK UNKWN
CAN1 STAT 0.00 1.00
CAN2 STAT 0.00 1.00
CAN3 STAT 0.00 1.00
NOTE:
● 0.00: Normally
>> After print-out of the monitor items, refer to LAN-3, "Precautions When Using CONSULT-II" .
PG-36
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
A
CAUTION:
This is performed when the IPDM E/R is checked without removing the battery.
1. Remove the headlamp (LH).
B
2. Remove tabs of the IPDM E/R and place the IPDM E/R with its
connector facing upward. Check each terminal.
E
SKIA2151E
SKIA2152E
I
PG
PG-37
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
OK or NG
OK >> GO TO 2.
NG >> Replace fuse or fusible link.
SKIA3144E
PG-38
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
1. CHECK SYMPTOM A
3. CHECK RELAY
H
Send an operation signal to the relay using a diagnosis tool. Check the voltage at the input and output termi-
nals of inoperative relays according to the table below or check for continuity between input and output termi-
nals. Refer to PG-28, "ACTIVE TEST" or PG-29, "Auto Active Test" .
I
IPDM E/R terminal num-
Diagnosis tool
ber
Relay name Voltage [V]
CONSULT-II Auto J
Input side Output side
ACTIVE TEST ACTIVE TEST
Front fog lamp relay 43, 44 × ×
Headlamp Hi relay 46, 47 × × PG
Headlamp Lo relay 48, 50 × ×
Tail lamp relay 1 15, 16, 45, 49 × ×
L
Front wiper main relay 23 Battery × ×
Front wiper HI/LO relay 24 voltage × ×
A/C relay 41 × M
Rear windows defogger relay 2 8 × ×
Cooling fan Lo relay 1 10 × ×
14
Cooling fan Hi relay 2 12 × ×
×: Applicable
OK or NG
OK >> Check the control unit that controls the inoperative relay. (system)
NG >> Replace the IPDM E/R. (malfunction of relay)
PG-39
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-40
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
A
CAUTION:
Always replace with new* IPDM E/R when the IPDM E/R replacement is required.
*: New one means virgin control unit that has never been energized on-board.
B
REMOVAL
1. Remove battery. Refer to SC-13, "Removal and Installation" in SC section.
2. Pull out IPDM E/R cover A from IPDM cover B. C
SKIA2153E
F
SKIA2154E
J
3. Disconnect harness connector from IPDM E/R.
4. Remove IPDM E/R from IPDM E/R cover A.
PG
M
SKIA2155E
INSTALLATION
● Install in the reverse order of removal.
PG-41
GROUND
GROUND PFP:00011
MAIN HARNESS
MKWA1312E
PG-42
GROUND
PG
MKWA1313E
PG-43
GROUND
MKWA1314E
PG-44
GROUND
PG
MKWA1315E
PG-45
GROUND
MKWA1316E
PG-46
GROUND
PG
MKWA1317E
PG-47
GROUND
MKWA1318E
PG-48
GROUND
PG
MKWA1319E
PG-49
GROUND
BODY HARNESS
MKWA1320E
PG-50
GROUND
PG
MKWA1321E
PG-51
GROUND
MKWA1322E
PG-52
GROUND
PG
MKWA1323E
PG-53
HARNESS
HARNESS PFP:00011
SKIA0404E
PG-54
HARNESS
OUTLINE/LHD MODELS
A
PG
MKWA1354E
PG-55
HARNESS
OUTLINE/RHD MODELS
MKWA1355E
PG-56
HARNESS
PG
MKWA1336E
PG-57
HARNESS
MKWA1337E
PG-58
HARNESS
PG
MKWA1338E
PG-59
HARNESS
MKWA1339E
PG-60
HARNESS
PG
MKWA1340E
PG-61
HARNESS
MKWA1341E
PG-62
HARNESS
PG
MKWA1342E
PG-63
HARNESS
MKWA1343E
PG-64
HARNESS
BODY HARNESS
A
PG
MKWA1344E
PG-65
HARNESS
MKWA1346E
PG-66
HARNESS
PG
MKWA1345E
PG-67
HARNESS
MKWA1347E
PG-68
HARNESS
J
MKWA1348E
PG
PG-69
HARNESS
MKWA1349E
PG-70
HARNESS
J
MKWA1350E
PG
PG-71
HARNESS
MKWA1351E
PG-72
HARNESS
J
MKWA1352E
PG
PG-73
HARNESS
MKWA1353E
PG-74
HARNESS
A
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
B
Code Section Wiring Diagram Name
1STSIG AT A/T 1ST Signal
2NDSIG AT A/T 2ND Signal C
3RDSIG AT A/T 3RD Signal
4THSIG AT A/T 4TH Signal
A/C ATC Auto Air Conditioner
D
A/C MTC Manual Air Conditioner
A/WIP WW Front Wiper and Washer System (With Rain Sensor) E
ABS BRC Anti-lock Brake System
AP/SEN EC Manifold Absolute Pressure Sensor
APPS1 EC Accelerator pedal position Sensor 1 F
APPS2 EC Accelerator pedal position Sensor 2
APPS3 EC Accelerator pedal position Sensor
G
AUDIO AV Audio
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
BACK/L LT Back-up Lamp H
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
I
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System J
CHIME DI Warning Chime
CIGAR WW Cigarette Lighter
PG
COMBSW LT Combination Switch
COOL/F EC Cooling Fan Control
D/COMP DI Drive Computer L
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System M
ECM/PW EC ECM Power Supply
ECTS EC Engine Coolant Temperature Sensor
ENGSS AT Engine Speed Signal
EPS STC Electric Power Steering System
ETC1 EC Electrical Throttle Control Function
ETC2 EC Electrical Throttle Control Motor Relay
ETC3 EC Electrical Throttle Control Motor
F/FOG LT Front Fog Lamp
F/FUMP EC Fuel Pump
FTS AT A/T Fluid Temperature Sensor
FUEL EC Fuel Injection System Function
H/AIM LT Headlamp Aiming Control System
H/LAMP LT Headlamp
PG-75
HARNESS
PG-76
HARNESS
PG
PG-77
ELECTRICAL UNITS LOCATION
ENGINE COMPARTMENT
MKWA1356E
PG-78
ELECTRICAL UNITS LOCATION
PG
MKWA1357E
PG-79
ELECTRICAL UNITS LOCATION
MKWA1358E
PG-80
HARNESS CONNECTOR
PG
SEL769DA
PG-81
HARNESS CONNECTOR
[Example]
SEL769V
PG-82
ELECTRICAL UNITS
PG
MKWA1364E
PG-83
SMJ (SUPER MULTIPLE JUNCTION)
MKWA1361E
PG-84
STANDARDIZED RELAY
SEL881H
H
TYPE OF STANDARDIZED RELAYS
1M ···················· 1 Make 2M ···················· 2 Make
I
1T ···················· 1 Transfer 1M·1B ···················· 1 Make 1 Break
PG
SEL882H
PG-85
STANDARDIZED RELAY
SEL188W
PG-86
FUSE BLOCK - JUNCTION BOX (J/B)
PG
MKWA1362E
PG-87
FUSE AND FUSIBLE LINK BOX
MKWA1363E
PG-88