2007 INFINITI QX56 wiring diagram

DI-38
< SERVICE INFORMATION >
WARNING CHIME
Wiring Diagram - CHIME -
INFOID:0000000003533513
WKWA3627E

DI-42
< SERVICE INFORMATION >
WARNING CHIME
1. Turn ignition switch OFF.
2. Disconnect BCM connector M19 and front door switch LH con-
nector B8.
3. Check continuity between BCM harness connector M19 terminal
47 and front door switch LH harness connector B8 terminal 2.
4. Check continuity between BCM harness connector M19 terminal
47 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK FRONT DOOR SWITCH LH
Check continuity between front door switch LH terminal 2 and
exposed metal of switch while pressing and releasing switch.
OK or NG
OK >> Replace the BCM. Refer to BCS-24, "BCM".
NG >> Replace the front door switch LH.
Key Warning Chime Does Not OperateINFOID:0000000003533521
1.CHECK FUSE
Check if the key switch fuse [No. 19, located in the fuse block (J/B)] is blown. Refer to DI-38, "
Wiring Diagram
- CHIME -".
Is the fuse blown?
YES >> Replace the fuse. Be sure to repair the cause of malfunction before installing new fuse.
NO >> GO TO 2.
2.CHECK WARNING CHIME OPERATION
With key removed from the ignition key cylinder and the front door LH open, turn the lighting switch to 1st or
2nd position.
Does warning chime sound?
YES >> GO TO 3.
NO >> Go to DI-41, "
All Warning Chimes Do Not Operate" or DI-41, "Key Warning Chime and Light
Warning Chime Do Not Operate (Seat Belt Warning Chime Does Operate)".
3.CHECK BCM INPUT SIGNAL
With CONSULT-IIContinuity should exist.
Continuity should not exist.
WKIA1516E
When front door switch
LH is released: Continuity should exist.
When front door switch
LH is pressed: Continuity should not exist.
WKIA2023E

DI-48
< SERVICE INFORMATION >
REAR SONAR SYSTEM
Wiring Diagram - SONAR -
INFOID:0000000003533526
WKWA5294E

REAR SONAR SYSTEM
DI-53
< SERVICE INFORMATION >
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1. Push and hold rear sonar system OFF switch for three seconds
to reset time-out counter.
2. Push and hold rear sonar system OFF switch for three seconds
to clear codes.
Preliminary CheckINFOID:0000000003533532
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSE
Check for blown rear sonar system fuse.
Refer to DI-48, "
Wiring Diagram - SONAR -".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-3
.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect sonar control unit connector.
2. Check voltage between sonar control unit connector B56 termi-
nal 8 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between sonar control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between sonar control unit B56 terminal 6 and
ground.
OK or NG
OK >> Inspection End.
NG >> Check harness ground circuit.
LKIA0391E
Unit Power Source Fuse
Sonar control unit ON or START 12
Terminals Ignition switch position
(+)
(-) ON or START
Connector Terminal
B56 8 Ground Battery voltage
WKIA1145E
Te r m i n a l s
Continuity (+)
(–)
Connector Terminal
B56 6 Ground Yes
WKIA1146E

DI-56
< SERVICE INFORMATION >
CLOCK
CLOCK
Wiring Diagram - CLOCK -INFOID:0000000003533536
Removal and Installation of ClockINFOID:0000000003533537
REMOVAL
WKWA1178E

REAR VIEW MONITOR
DI-61
< SERVICE INFORMATION >
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Wiring Diagram - R/VIEW -INFOID:0000000003533541
WKWA1180E

EC-2
CONSULT-II Function (ENGINE) ..........................111
Generic Scan Tool (GST) Function .......................122
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
124
Major Sensor Reference Graph in Data Monitor
Mode ......................................................................
127
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE .............................................................
129
Description .............................................................129
Testing Condition ...................................................129
Inspection Procedure .............................................129
Diagnosis Procedure .............................................130
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT ........................................................
138
Description .............................................................138
Diagnosis Procedure .............................................138
POWER SUPPLY AND GROUND CIRCUIT ...139
Wiring Diagram ......................................................139
Diagnosis Procedure .............................................140
Ground Inspection .................................................143
DTC U1000, U1001 CAN COMMUNICATION
LINE .................................................................
145
Description .............................................................145
On Board Diagnosis Logic .....................................145
DTC Confirmation Procedure ................................145
Wiring Diagram ......................................................146
Diagnosis Procedure .............................................146
DTC U1010 CAN COMMUNICATION .............147
Description .............................................................147
On Board Diagnosis Logic .....................................147
DTC Confirmation Procedure ................................147
Diagnosis Procedure .............................................147
DTC P0011, P0021 IVT CONTROL .................149
Description .............................................................149
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
150
On Board Diagnosis Logic .....................................150
DTC Confirmation Procedure ................................150
Wiring Diagram ......................................................152
Diagnosis Procedure .............................................155
Component Inspection ...........................................159
Removal and Installation .......................................160
DTC P0031, P0032, P0051, P0052 A/F SEN-
SOR 1 HEATER ...............................................
163
Description .............................................................163
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
163
On Board Diagnosis Logic .....................................163
DTC Confirmation Procedure ................................163
Wiring Diagram ......................................................164
Diagnosis Procedure .............................................167
Component Inspection ...........................................168
Removal and Installation .......................................169
DTC P0037, P0038, P0057, P0058 HO2S2
HEATER ...........................................................
170
Description ............................................................170
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
170
On Board Diagnosis Logic ....................................170
DTC Confirmation Procedure ................................170
Wiring Diagram .....................................................172
Diagnosis Procedure .............................................175
Component Inspection ..........................................176
Removal and Installation .......................................177
DTC P0075, P0081 IVT CONTROL SOLE-
NOID VALVE ....................................................
178
Component Description ........................................178
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
178
On Board Diagnosis Logic ....................................178
DTC Confirmation Procedure ................................178
Wiring Diagram .....................................................179
Diagnosis Procedure .............................................182
Component Inspection ..........................................183
Removal and Installation .......................................184
DTC P0101 MAF SENSOR ..............................186
Component Description ........................................186
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
186
On Board Diagnosis Logic ....................................186
DTC Confirmation Procedure ................................186
Overall Function Check .........................................188
Wiring Diagram .....................................................189
Diagnosis Procedure .............................................190
Component Inspection ..........................................192
Removal and Installation .......................................193
DTC P0102, P0103 MAF SENSOR ..................194
Component Description ........................................194
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
194
On Board Diagnosis Logic ....................................194
DTC Confirmation Procedure ................................194
Wiring Diagram .....................................................196
Diagnosis Procedure .............................................197
Component Inspection ..........................................199
Removal and Installation .......................................200
DTC P0112, P0113 IAT SENSOR ....................201
Component Description ........................................201
On Board Diagnosis Logic ....................................201
DTC Confirmation Procedure ................................201
Wiring Diagram .....................................................202
Diagnosis Procedure .............................................202
Component Inspection ..........................................204
Removal and Installation .......................................204
DTC P0117, P0118 ECT SENSOR ...................205
Component Description ........................................205
On Board Diagnosis Logic ....................................205
DTC Confirmation Procedure ................................206

EC-3
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P Wiring Diagram .....................................................
207
Diagnosis Procedure .............................................207
Component Inspection ..........................................209
Removal and Installation .......................................209
DTC P0122, P0123 TP SENSOR .....................210
Component Description .........................................210
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
210
On Board Diagnosis Logic ....................................210
DTC Confirmation Procedure ................................210
Wiring Diagram .....................................................212
Diagnosis Procedure .............................................213
Component Inspection ..........................................215
Removal and Installation .......................................216
DTC P0125 ECT SENSOR ...............................217
Component Description .........................................217
On Board Diagnosis Logic ....................................217
DTC Confirmation Procedure ................................217
Diagnosis Procedure .............................................218
Component Inspection ..........................................218
Removal and Installation .......................................219
DTC P0127 IAT SENSOR ................................220
Component Description .........................................220
On Board Diagnosis Logic ....................................220
DTC Confirmation Procedure ................................220
Diagnosis Procedure .............................................221
Component Inspection ..........................................221
Removal and Installation .......................................222
DTC P0128 THERMOSTAT FUNCTION ..........223
On Board Diagnosis Logic ....................................223
DTC Confirmation Procedure ................................223
Diagnosis Procedure .............................................223
Component Inspection ..........................................223
Removal and Installation .......................................224
DTC P0130, P0150 A/F SENSOR 1 .................225
Component Description .........................................225
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
225
On Board Diagnosis Logic ....................................225
DTC Confirmation Procedure ................................225
Overall Function Check .........................................227
Wiring Diagram .....................................................228
Diagnosis Procedure .............................................231
Removal and Installation .......................................233
DTC P0131, P0151 A/F SENSOR 1 .................234
Component Description .........................................234
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
234
On Board Diagnosis Logic ....................................234
DTC Confirmation Procedure ................................234
Wiring Diagram .....................................................236
Diagnosis Procedure .............................................239
Removal and Installation .......................................241
DTC P0132, P0152 A/F SENSOR 1 ................242
Component Description .........................................242
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
242
On Board Diagnosis Logic .....................................242
DTC Confirmation Procedure ................................242
Wiring Diagram ......................................................244
Diagnosis Procedure .............................................247
Removal and Installation .......................................249
DTC P0133, P0153 A/F SENSOR 1 ................250
Component Description .........................................250
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
250
On Board Diagnosis Logic .....................................250
DTC Confirmation Procedure ................................250
Wiring Diagram ......................................................253
Diagnosis Procedure .............................................256
Removal and Installation .......................................259
DTC P0137, P0157 HO2S2 .............................260
Component Description .........................................260
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
260
On Board Diagnosis Logic .....................................260
DTC Confirmation Procedure ................................260
Overall Function Check .........................................261
Wiring Diagram ......................................................262
Diagnosis Procedure .............................................265
Component Inspection ...........................................267
Removal and Installation .......................................269
DTC P0138, P0158 HO2S2 .............................270
Component Description .........................................270
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
270
On Board Diagnosis Logic .....................................270
DTC Confirmation Procedure ................................271
Overall Function Check .........................................272
Wiring Diagram ......................................................273
Diagnosis Procedure .............................................276
Component Inspection ...........................................280
Removal and Installation .......................................281
DTC P0139, P0159 HO2S2 .............................282
Component Description .........................................282
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
282
On Board Diagnosis Logic .....................................282
DTC Confirmation Procedure ................................282
Overall Function Check .........................................283
Wiring Diagram ......................................................284
Diagnosis Procedure .............................................287
Component Inspection ...........................................289
Removal and Installation .......................................291
DTC P0171, P0174 FUEL INJECTION SYS-
TEM FUNCTION ..............................................
292
On Board Diagnosis Logic .....................................292
DTC Confirmation Procedure ................................292