wiring diagram INFINITI QX56 2010 Factory Service Manual

PCS-18
< COMPONENT DIAGNOSIS >[IPDM E/R]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000005146511
Regarding Wiring Diagram information, refer to
PCS-27, "Wiring Diagram".
1. CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible link are not blown.
Is the fuse blown?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2
2. CHECK BATTERY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R.
3. Check voltage between IPDM E/R harness connectors and ground.
Is the measurement value normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between IPDM E/R harness connectors and ground.
Does continuity exist?
YES >> Inspection End.
NO >> Repair or replace harness.
Terminal No. Signal nameFuses and fusible link No.
1 Battery A, D
2 Battery C
12 Ignition switch ON or START 59
TerminalsIgnition switch position
(+) (−) OFF ON START
Connector Terminal
E118 (A) 1
Ground Battery
voltage Battery
voltage Battery
voltage
2 Battery
voltage Battery
voltage Battery
voltage
E119 (B) 12 0VBattery
voltage Battery
voltage
AWMIA0023ZZ
IPDM E/R
GroundContinuity
Connector Terminal
E122 (A) 38
Ye s
E124 (B) 59
AWMIA0024ZZ
Revision: April 20092010 QX56

PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-27
< ECU DIAGNOSIS > [IPDM E/R]
C
D
E
F
G H
I
J
K L
B A
O P
N
Wiring DiagramINFOID:0000000005146515
ABMWA0362GB
Revision: April 20092010 QX56

PG
PG-1
ELECTRICAL & POWER CONTROL
C
DE
F
G H
I
J
K L
B
SECTION PG
A
O P
N
CONTENTS
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
PRECAUTION .......
........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution for Power Generation Variable Voltage
Control System ..........................................................
3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
BASIC INSPECTION ....................................5
BATTERY ....................................................... .....5
How to Handle Battery ........................................ ......5
Work Flow ........................................................... ......7
INSPECTION AND ADJUSTMENT .....................8
ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL ............................... ......
8
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Special Re-
pair Requirement ................................................. ......
8
COMPONENT DIAGNOSIS ..........................9
POWER SUPPLY ROUTING CIRCUIT .......... .....9
Wiring Diagram — Battery Power Supply — ....... ......9
Wiring Diagram — Accessory Power Supply — .....18
Wiring Diagram — Ignition Power Supply — ..........22
Fuse ........................................................................30
Fusible Link .............................................................30
GROUND ...........................................................31
Ground Distribution .............................................. ....31
HARNESS .........................................................41
Harness Layout ................................................... ....41
ELECTRICAL UNITS LOCATION ....................61
Electrical Units Location ..........................................61
HARNESS CONNECTOR .................................64
Description ...............................................................64
STANDARDIZED RELAY .................................67
Description ...............................................................67
FUSE BLOCK - JUNCTION BOX (J/B) ............69
Terminal Arrangement .............................................69
FUSE, FUSIBLE LINK AND RELAY BOX ........70
Terminal Arrangement .............................................70
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) ................
72
IPDM E/R Terminal Arrangement - Type A .............72
IPDM E/R Terminal Arrangement - Type B .............73
ON-VEHICLE REPAIR .................................74
BATTERY ..........................................................74
Removal and Installation ..................................... ....74
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... ...
75
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
75
Battery ................................................................. ....75
Revision: April 20092010 QX56

PG
POWER SUPPLY ROUTING CIRCUITPG-9
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K L
B A
O P
N
COMPONENT DIAGNOSIS
POWER SUPPLY ROUTING CIRCUIT
Wiring Diagram —Battery Power Supply —INFOID:0000000005146576
ABMWA0428GB
Revision: April 20092010 QX56

PG-18
< COMPONENT DIAGNOSIS >
POWER SUPPLY ROUTING CIRCUIT
Wiring Diagram —Accessory Power Supply —
INFOID:0000000005146577
ABMWA0433GB
Revision: April 20092010 QX56

PG-22
< COMPONENT DIAGNOSIS >
POWER SUPPLY ROUTING CIRCUIT
Wiring Diagram —Igniti on Power Supply —
INFOID:0000000005146578
ABMWA0066GB
Revision: April 20092010 QX56

PG
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-73
< COMPONENT DIAGNOSIS >
C
D E
F
G H
I
J
K L
B A
O P
N
IPDM E/R Terminal Ar
rangement - Type BINFOID:0000000005370328
NOTE:
Numbers preceded by an "F" represent the fuse number s imprinted on the IPDM E/R. The other numbers
represent the fuse numbers as they appear in the wiring diagrams.
AAMIA0364GB
Revision: April 20092010 QX56

PWC-2
PASSENGER SIDE : Description ...........................25
PASSENGER SIDE : Compo nent Function Check
...
25
PASSENGER SIDE : Diagnosis Procedure ........ ...25
REAR LH ................................................................ ...28
REAR LH : Description ...........................................28
REAR LH : Component Function Check ................28
REAR LH : Diagnosis Procedure ............................28
REAR RH ............................................................... ...30
REAR RH : Description ..........................................31
REAR RH : Component Function Check ................31
REAR RH : Diagnosis Procedure ...........................31
DOOR SWITCH .................................................34
Description ..............................................................34
Component Function Check ...................................34
Diagnosis Procedure ..............................................34
Component Inspection ............................................35
DOOR KEY CYLINDER SWITCH ......................36
Description ........................................................... ...36
Component Function Check ...................................36
Diagnosis Procedure ..............................................36
Component Inspection ............................................37
POWER WINDOW SERIAL LINK .....................39
POWER WINDOW MAIN SWITCH ........................ ...39
POWER WINDOW MAIN SWITCH : Description ...39
POWER WINDOW MAIN SWITCH : Component
Function Check .......................................................
39
POWER WINDOW MAIN SWITCH : Diagnosis
Procedure ...............................................................
39
FRONT POWER WINDOW SWITCH ..................... ...40
FRONT POWER WINDOW SWITCH : Descrip-
tion ..........................................................................
40
FRONT POWER WINDOW SWITCH : Compo-
nent Function Check ...............................................
40
FRONT POWER WINDOW SWITCH : Diagnosis
Procedure ...............................................................
41
REAR POWER WINDOW SWITCH ....................... ...42
REAR POWER WINDOW SWITCH : Power Win-
dow Serial Link Check Rear LH or RH ...................
42
POWER WINDOW LOCK SWITCH ...................43
Description ........................................................... ...43
Component Function Check ...................................43
REAR POWER VENT WINDOW SWITCH
CIRCUIT CHECK ...............................................
44
Description ........................................................... ...44
Diagnosis Procedure ..............................................44
REAR POWER VENT WINDOW MOTOR LH
CIRCUIT CHECK ...............................................
45
Description ........................................................... ...45
Diagnosis Procedure ..............................................45
REAR POWER VENT WINDOW MOTOR RH
CIRCUIT CHECK ...............................................
46
Description ........................................................... ...46
Diagnosis Procedure ...............................................46
REAR POWER VENT WINDOW RELAY
(OPEN) CHECK .................................................
47
Description ........................................................... ...47
Diagnosis Procedure ...............................................47
REAR POWER VENT WINDOW RELAY
(CLOSE) CHECK ...............................................
49
Description ........................................................... ...49
Diagnosis Procedure ...............................................49
ECU DIAGNOSIS .......................................51
POWER WINDOW MAIN SWITCH ................ ...51
Reference Value .................................................. ...51
Wiring Diagram .......................................................53
Fail Safe .................................................................64
FRONT POWER WINDOW SWITCH ................66
Reference Value .................................................. ...66
Wiring Diagram .......................................................68
Fail Safe .................................................................79
BCM (BODY CONTROL MODULE) ..................81
Reference Value .................................................. ...81
Terminal Layout ......................................................84
Physical Values .......................................................84
Wiring Diagram .......................................................90
Fail Safe .................................................................94
DTC Inspection Priority Chart ...............................95
DTC Index ..............................................................95
SYMPTOM DIAGNOSIS ............................97
NONE OF THE POWER WINDOWS CAN BE
OPERATED USING ANY SWITCH ................ ...
97
Diagnosis Procedure ............................................ ...97
DRIVER SIDE POWER WINDOW ALONE
DOES NOT OPERATE ......................................
98
Diagnosis Procedure ............................................ ...98
FRONT PASSENGER SIDE POWER WIN-
DOW ALONE DOES NOT OPERATE ...............
99
Diagnosis Procedure ............................................ ...99
REAR LH SIDE POWER WINDOW ALONE
DOES NOT OPERATE .....................................
100
Diagnosis Procedure ............................................ .100
REAR RH SIDE POWER WINDOW ALONE
DOES NOT OPERATE .....................................
101
Diagnosis Procedure ............................................ .101
ANTI-PINCH SYSTEM DOES NOT OPERATE
NORMALLY (DRIVER SIDE) ...........................
102
Diagnosis Procedure ............................................ .102
Revision: April 20092010 QX56

PWC-12
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : DescriptionINFOID:0000000005147171
• BCM supplies power.
• It operates each power window motor via corresponding power window switch and makes window move up/down when main power window and door lock/unlock switch is operated.
POWER WINDOW MAIN SWITCH : Component Function CheckINFOID:0000000005147172
Main Power Window And Door Lock/Unlock Switch
1. CHECK MAIN POWER WINDOW AND DO OR LOCK/UNLOCK SWITCH FUNCTION
Does power window motor operate with main power window and door lock/unlock switch operation?
Is the inspection result normal?
YES >> Main power window and door lock/unlock switch power supply and ground circuit are OK.
NO >> Refer to PWC-12, "
POWER WINDOW MAIN SWITCH : Diagnosis Procedure".
POWER WINDOW MAIN SWITCH : Diagnosis ProcedureINFOID:0000000005147173
Regarding Wiring Diagram information, refer to PWC-53, "Wiring Diagram".
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/ unlock switch connectors and ground.
Is the measurement value within the specification?
YES >> GO TO 3
NO >> GO TO 2
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and main power window and door lock/unlock switch.
3. Check continuity between BCM connector and main power win- dow and door lock/unlock switch connectors.
Te r m i n a l
Voltage (V)(Approx.)
(+)
(–)
Main power window and
door lock/unlock switch
connector Te r m i n a l
D7 (A) 10
Ground Battery voltage
D8 (B) 19
ALKIA0273ZZ
BCM connector Terminal Main power window and
door lock/unlock switch connector Terminal Continuity
M20 (A) 68
D7 (B) 10
Ye s
69 D8 (C) 19
LIIA2215E
Revision: April 20092010 QX56

PWC-14
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
FRONT POWER WINDOW SWIT CH : Diagnosis Procedure
INFOID:0000000005147176
Regarding Wiring Diagram information, refer to PWC-68, "Wiring Diagram".
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between power window and door lock/unlock switch RH connector and ground.
Is the measurement value within the specification?
YES >> GO TO 3
NO >> GO TO 2
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and power window and door lock/unlock switch RH.
3. Check continuity between BCM connector and power window and door lock/unlock switch RH connector.
4. Check continuity between BCM connector and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window and door lock/unlock switch RH.
3. Check continuity between power window and door lock/unlock switch RH connector and ground.
Is the inspection result normal?
YES >> Replace power window and door lock/unlock switch RH. Refer to PWC-118, "
Removal and Installation".
NO >> Repair or replace harness.
Te r m i n a l
Voltage (V)(Approx.)
(+)
(–)
Power window and door lock/
unlock
switch RH connector Te r m i n a l
D105 10Ground Battery voltage
ALKIA0301ZZ
BCM connector Terminal Power window and
door lock/unlock
switch RH connector Terminal Continuity
M20 (A) 69 D105 (B)10 Yes
BCM connector Terminal
GroundContinuity
M20 (A) 69 No
LIIA2364E
Power window and door
lock/unlock switch RH Te r m i n a l
Ground Continuity
D105 11 Yes
ALKIA0303ZZ
Revision: April 20092010 QX56