diagram INFINITI QX56 2011 Factory Service Manual

CHG
SYSTEMCHG-7
< SYSTEM DESCRIPTION >
C
DE
F
G H
I
J
K L
B A
O P
N
SYSTEM
CHARGING SYSTEM
CHARGING SYSTEM : System DiagramINFOID:0000000006274860
CHARGING SYSTEM : System DescriptionINFOID:0000000006274861
The alternator provides DC voltage to operate the vehi
cle's electrical system and to keep the battery charged.
The voltage output is controlled by the IC voltage regulator.
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
POWER GENERATION VOLTAGE VARIABL E CONTROL SYSTEM : System Dia-
gram
INFOID:0000000006274862
POWER GENERATION VOLTAGE VARIABL E CONTROL SYSTEM : System De-
JPMIA0633GB
JPMIA0632GB
Revision: 2010 May2011 QX56

CHG
CHARGING SYSTEMCHG-9
< WIRING DIAGRAM >
C
DE
F
G H
I
J
K L
B A
O P
N
WIRING DIAGRAM
CHARGING SYSTEM
Wiring DiagramINFOID:0000000006274864
JCMWM8336GB
Revision: 2010 May2011 QX56

CHG-10
< WIRING DIAGRAM >
CHARGING SYSTEM
JCMWM8337GB
Revision: 2010 May2011 QX56

CHG
CHARGING SYSTEMCHG-11
< WIRING DIAGRAM >
C
DE
F
G H
I
J
K L
B A
O P
N
JCMWM8338GB
Revision: 2010 May2011 QX56

CHG-12
< WIRING DIAGRAM >
CHARGING SYSTEM
JCMWM8339GB
Revision: 2010 May2011 QX56

CHG
L TERMINAL CIRCUIT (OPEN)CHG-21
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
K L
B A
O P
N
1. Connect the battery cable to the negative terminal.
2. Check voltage between combination meter harness connector and ground.
Is the inspection result normal?
YES >> Replace combination meter.
NO >> Inspect the power supply circuit. Refer to
PG-89, "
Wiring Diagram - IGNITION POWER SUPPLY -
".
(+)
(–) Condition Voltage
Combination meter
Connector Terminal M34 2 Ground Ignition switch ON Battery voltage
Revision: 2010 May2011 QX56

DAS-1
CRUISE CONTROL & DRIVER ASSISTANCE
C
DE
F
G H
I
J
K L
M B
DAS
SECTION DAS
N
P A
CONTENTS
DRIVER ASSISTANCE SYSTEM
ADAS CONTROL UNIT
PRECAUTION ................ ..............................
12
PRECAUTIONS .............................................. ....12
Precautions For Harness Repair ......................... ....12
SYSTEM DESCRIPTION .............................13
COMPONENT PARTS ................................... ....13
Component Parts Location .................................. ....13
Component Description ...........................................13
SYSTEM .............................................................14
System Description ............................................. ....14
Fail-safe ..................................................................18
DIAGNOSIS SYSTEM (ADAS CONTROL
UNIT) ..................................................................
20
On Board Diagnosis Function ............................. ....20
CONSULT-III Function (ICC/ADAS) ........................21
ECU DIAGNOSIS INFORMATION ..............31
ADAS CONTROL UNIT .................................. ....31
Reference Value ................................................. ....31
Fail-safe ..................................................................36
DTC Inspection Priority Chart .................................37
DTC Index ...............................................................38
WIRING DIAGRAM ......................................42
DRIVER ASSISTANCE SYSTEMS ................ ....42
Wiring Diagram ................................................... ....42
DTC/CIRCUIT DIAGNOSIS .........................57
C1A00 CONTROL UNIT ................................. ....57
DTC Logic ........................................................... ....57
Diagnosis Procedure ...............................................57
C1A01 POWER SUPPLY CIRCUIT 1, C1A02
POWER SUPPLY CIRCUIT 2 ............................
58
DTC Logic ............................................................ ....58
Diagnosis Procedure ...............................................58
U1000 CAN COMM CIRCUIT ...........................59
Description ...............................................................59
DTC Logic ................................................................59
Diagnosis Procedure ...............................................59
U1010 CONTROL UNIT (CAN) .........................60
Description ...............................................................60
DTC Logic ................................................................60
Diagnosis Procedure ...............................................60
U150F AV CAN 3 ..............................................61
DTC Logic ................................................................61
Diagnosis Procedure ...............................................61
POWER SUPPLY AND GROUND CIRCUIT ....62
Diagnosis Procedure ...............................................62
REMOVAL AND INSTALLATION ...............63
ADAS CONTROL UNIT ....................................63
Removal and Installation ..................................... ....63
DCA
PRECAUTION ............... ...............................
64
PRECAUTIONS .................................................64
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
64
Precautions For Harness Repair .............................64
DCA System Service ...............................................65
SYSTEM DESCRIPTION .............................66
COMPONENT PARTS ......................................66
Component Parts Location .................................. ....66
Component Description ...........................................67
SYSTEM ............................................................68
System Description .............................................. ....68
Revision: 2010 May2011 QX56

DAS-2
Fail-safe (ADAS Control Unit) .................................72
Fail-safe (ICC Sensor) ............................................72
OPERATION ......................................................73
Switch Name and Function .................................. ...73
Menu Displayed by Pressing Each Switch .............73
HANDLING PRECAUTION ................................76
Precautions for Distance Control Assist .............. ...76
DIAGNOSIS SYSTEM (ADAS CONTROL
UNIT) ............................................................... ...
78
On Board Diagnosis Function .............................. ...78
CONSULT-III Function (ICC/ADAS) .......................79
DIAGNOSIS SYSTEM (ICC SENSOR) ..............89
CONSULT-III Function (LASER) ............................89
DIAGNOSIS SYSTEM (ACCELERATOR
PEDAL ACTUATOR) ...................................... ...
91
CONSULT-III Function (ACCELERATOR PEDAL
ACT) .................................................................... ...
91
ECU DIAGNOSIS INFORMATION ..............93
ADAS CONTROL UNIT .................................. ...93
Reference Value .................................................. ...93
Fail-safe ..................................................................98
DTC Inspection Priority Chart .................................99
DTC Index .............................................................100
ICC SENSOR ...................................................104
Reference Value .................................................. ..104
Fail-safe .................................................................105
DTC Inspection Priority Chart ................................105
DTC Index .............................................................105
ACCELERATOR PEDAL ACTUATOR ...........107
Reference Value .................................................. ..107
DTC Inspection Priority Chart ................................108
DTC Index .............................................................108
WIRING DIAGRAM ....................................109
DRIVER ASSISTANCE SYSTEMS ................ .109
Wiring Diagram .................................................... ..109
BASIC INSPECTION ..................................124
DIAGNOSIS AND REPAIR WORK FLOW ..... .124
Work Flow ............................................................ ..124
ADDITIONAL SERVICE WHEN REPLACING
ICC SENSOR ...................................................
126
Description ........................................................... ..126
Work Procedure .....................................................126
ADDITIONAL SERVICE WHEN REPLACING
ACCELERATOR PEDAL ASSEMBLY ............
127
Description ........................................................... ..127
Work Procedure .....................................................127
ACTION TEST ..................................................128
Description ........................................................... .128
Work Procedure ....................................................128
DTC/CIRCUIT DIAGNOSIS .......................129
C1A00 CONTROL UNIT ................................. ..129
DTC Logic ............................................................ .129
Diagnosis Procedure .............................................129
C1A01 POWER SUPPLY CIRCUIT 1, C1A02
POWER SUPPLY CIRCUIT 2 ...........................
130
DTC Logic ............................................................ .130
Diagnosis Procedure .............................................130
C1A03 VEHICLE SPEED SENSOR .................131
DTC Logic ............................................................ .131
Diagnosis Procedure .............................................131
C1A04 ABS/TCS/VDC SYSTEM ......................133
DTC Logic ............................................................ .133
Diagnosis Procedure .............................................133
C1A05 BRAKE SW/STOP LAMP SW ..............134
DTC Logic ............................................................ .134
Diagnosis Procedure .............................................134
Component Inspection (ICC Brake Switch) ..........137
Component Inspection (Stop Lamp Switch) ..........137
C1A06 OPERATION SW ..................................138
DTC Logic ............................................................ .138
Diagnosis Procedure .............................................138
Component Inspection ..........................................139
C1A12 LASER BEAM OFF CENTER ..............140
DTC Logic ............................................................ .140
Diagnosis Procedure .............................................140
C1A13 STOP LAMP RELAY ............................141
DTC Logic ............................................................ .141
Diagnosis Procedure .............................................141
Component Inspection ..........................................146
C1A14 ECM ......................................................147
DTC Logic ............................................................ .147
Diagnosis Procedure .............................................147
C1A15 GEAR POSITION .................................148
Description ........................................................... .148
DTC Logic .............................................................148
Diagnosis Procedure .............................................148
C1A16 RADAR STAIN ................................... ..150
DTC Logic ............................................................ .150
Diagnosis Procedure .............................................150
C1A17 ICC SENSOR ........................................151
DTC Logic ............................................................ .151
Diagnosis Procedure .............................................151
C1A18 LASER AIMING INCMP .......................152
DTC Logic ............................................................ .152
Revision: 2010 May2011 QX56

DAS-5
C
DE
F
G H
I
J
K L
M B
DAS
N
P A
Description ..........................................................
..
208
Diagnosis Procedure .............................................208
NORMAL OPERATING CONDITION ...............210
Description .......................................................... ..210
REMOVAL AND INSTALLATION .............212
ICC SENSOR .................................................. ..212
Exploded View .................................................... ..212
Removal and Installation .......................................212
ACCELERATOR PEDAL ASSEMBLY ............213
Exploded View .................................................... ..213
DYNAMIC DRIVER ASSISTANCE SWITCH ...214
Exploded View .................................................... ..214
FCW
PRECAUTION ................ ............................
215
PRECAUTIONS .............................................. ..215
Precaution for FCW System Service ................... ..215
SYSTEM DESCRIPTION ...........................216
COMPONENT PARTS ................................... ..216
Component Parts Location .................................. ..216
Component Description .........................................216
SYSTEM ...........................................................218
System Description ............................................. ..218
Fail-safe (ADAS Control Unit) ...............................219
Fail-safe (ICC Sensor) ..........................................220
OPERATION .....................................................221
Switch Name and Function ................................. ..221
Menu Displayed by Pressing Each Switch ............221
HANDLING PRECAUTION ..............................223
Precautions for Forward Collision Warning ......... ..223
DIAGNOSIS SYSTEM (ADAS CONTROL
UNIT) ................................................................
224
On Board Diagnosis Function ............................. ..224
CONSULT-III Function (ICC/ADAS) ......................225
DIAGNOSIS SYSTEM (ICC SENSOR) ............235
CONSULT-III Function (LASER) ...........................235
ECU DIAGNOSIS INFO RMATION ............237
ADAS CONTROL UNIT .................................. ..237
Reference Value ................................................. ..237
Fail-safe ................................................................242
DTC Inspection Priority Chart ...............................243
DTC Index .............................................................244
ICC SENSOR ....................................................248
Reference Value ................................................. ..248
Fail-safe ................................................................249
DTC Inspection Priority Chart ...............................249
DTC Index ........................................................... ..249
WIRING DIAGRAM ....................................251
DRIVER ASSISTANCE SYSTEMS .................251
Wiring Diagram .................................................... ..251
BASIC INSPECTION .................................266
DIAGNOSIS AND REPAIR WORK FLOW .....266
Work Flow ............................................................ ..266
SYMPTOM DIAGNOSIS ............................268
FORWARD COLLISION WARNING SYSTEM
SYMPTOMS ....................................................
268
Symptom Table ................................................... ..268
FCW SYSTEM IS NOT ACTIVATED ..............269
Description .............................................................269
Diagnosis Procedure .............................................269
NORMAL OPERATING CONDITION .............270
Description .............................................................270
REMOVAL AND INSTALLATION .............271
WARNING SYSTEMS SWITCH ......................271
Removal and Installation ..................................... ..271
LDW & LDP
PRECAUTION ............... .............................
272
PRECAUTIONS ...............................................272
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
272
Precautions For Harness Repair ...........................272
Precaution for LDW/LDP System Service .............273
SYSTEM DESCRIPTION ...........................274
COMPONENT PARTS ....................................274
LANE DEPARTURE WARNING (LDW) SYSTEM ..274
LANE DEPARTURE WARNING (LDW) SYSTEM
: Component Parts Location ................................ ..
274
LANE DEPARTURE WARNING (LDW) SYSTEM
: Component Description .......................................
274
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM ........................................................................ ..
275
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM : Component Parts Location .........................
275
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM : Component Description ..............................
276
SYSTEM ..........................................................277
LANE DEPARTURE WARNING (LDW) SYSTEM ..277
LANE DEPARTURE WARNING (LDW) SYSTEM
: System Description ............................................ ..
277
Revision: 2010 May2011 QX56

DAS-6
LANE DEPARTURE WARNING (LDW) SYSTEM
: Fail-safe (ADAS Control Unit) ..............................
279
LANE DEPARTURE WARNING (LDW) SYSTEM
: Fail-safe (Lane Camera Unit) ..............................
280
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM ........................................................................ ..
280
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM : System Description .....................................
280
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM : Fail-safe (ADAS Control Unit) .....................
283
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM : Fail-safe (Lane Camera Unit) ......................
284
OPERATION ....................................................285
LANE DEPARTURE WARNING (LDW) SYSTEM . ..285
LANE DEPARTURE WARNING (LDW) SYSTEM
: Switch Name and Function ..................................
285
LANE DEPARTURE WARNING (LDW) SYSTEM
: Menu Displayed by Pressing Each Switch ..........
285
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM ........................................................................ ..
286
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM : Switch Name and Function .........................
286
LANE DEPARTURE PREVENTION (LDP) SYS-
TEM : Menu Displayed by Pressing Each Switch ..
286
HANDLING PRECAUTION ..............................288
Precautions for Lane Departure Warning/Lane
Departure Prevention .......................................... ..
288
DIAGNOSIS SYSTEM (ADAS CONTROL
UNIT) ............................................................... .
290
On Board Diagnosis Function .............................. ..290
CONSULT-III Function (ICC/ADAS) ......................291
DIAGNOSIS SYSTEM (LANE CAMERA
UNIT) ................................................................
301
CONSULT-III Function (LANE CAMERA) ........... ..301
ECU DIAGNOSIS INFORMATION .............303
ADAS CONTROL UNIT .................................. .303
Reference Value .................................................. ..303
Fail-safe .................................................................308
DTC Inspection Priority Chart ................................309
DTC Index .............................................................310
LANE CAMERA UNIT .....................................314
Reference Value .................................................. ..314
Fail-safe .................................................................315
DTC Inspection Priority Chart ................................316
DTC Index .............................................................316
WIRING DIAGRAM ....................................317
DRIVER ASSISTANCE SYSTEMS ................ .317
Wiring Diagram .................................................... ..317
BASIC INSPECTION ..................................332
DIAGNOSIS AND REPAIR WORK FLOW ..... ..332
Work Flow ............................................................ .332
Diagnostic Work Sheet .........................................333
PRE-INSPECTION FOR DIAGNOSIS ..............335
Inspection Procedure ........................................... .335
ACTION TEST ..................................................336
Description ........................................................... .336
Inspection Procedure ............................................336
ADDITIONAL SERVICE WHEN REPLACING
LANE CAMERA UNIT ......................................
339
Description ........................................................... .339
Work Procedure ....................................................339
CAMERA AIMING ADJUSTMENT ...................340
Description ........................................................... .340
Work Procedure (Preparation) ..............................340
Work Procedure (Target Setting) ..........................341
Work Procedure (Camera Aiming Adjustment) .....342
Work Procedure (Target Mark Sample) ................343
DTC/CIRCUIT DIAGNOSIS .......................345
C1A00 CONTROL UNIT ................................. ..345
DTC Logic ............................................................ .345
Diagnosis Procedure .............................................345
C1A01 POWER SUPPLY CIRCUIT 1, C1A02
POWER SUPPLY CIRCUIT 2 ...........................
346
DTC Logic ............................................................ .346
Diagnosis Procedure .............................................346
C1A03 VEHICLE SPEED SENSOR .................347
DTC Logic ............................................................ .347
Diagnosis Procedure .............................................347
C1A04 ABS/TCS/VDC SYSTEM ......................348
DTC Logic ............................................................ .348
Diagnosis Procedure .............................................348
C1A05 BRAKE SW/STOP LAMP SW ..............349
DTC Logic ............................................................ .349
Diagnosis Procedure .............................................349
Component Inspection (ICC Brake Switch) ..........352
Component Inspection (Stop Lamp Switch) ..........352
C1A06 OPERATION SW ..................................353
DTC Logic ............................................................ .353
Diagnosis Procedure .............................................353
Component Inspection ..........................................354
C1A14 ECM ......................................................355
DTC Logic ............................................................ .355
Diagnosis Procedure .............................................355
C1A15 GEAR POSITION .................................356
Description ........................................................... .356
DTC Logic .............................................................356
Diagnosis Procedure .............................................356
Revision: 2010 May2011 QX56