2011 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2011 Factory Service Manual
DAS-4
DTC Logic ..............................................................180
Diagnosis Procedure .............................................180
U0428 STRG SEN CAN 2 ..........................

DAS-4
DTC Logic ..............................................................180
Diagnosis Procedure .............................................180
U0428 STRG SEN CAN 2 ................................181
DTC Logic ............................................................ ..181
Diagnosis Procedure .............................................181
U1000 CAN COMM CIRCUIT ..........................182
ADAS CONTROL UNIT ......................................... ..182
ADAS CONTROL UNIT : Description ....................182
ADAS CONTROL UNIT : DTC Logic .....................182
ADAS CONTROL UNIT : Diagnosis Procedure .....182
ACCELERATOR PEDAL ACTUATOR .................. ..182
ACCELERATOR PEDAL ACTUATOR : Descrip-
tion .........................................................................
182
ACCELERATOR PEDAL ACTUATOR : DTC Log-
ic ............................................................................
182
ACCELERATOR PEDAL ACTUATOR : Diagnosis
Procedure ..............................................................
183
U1010 CONTROL UNIT (CAN) .......................184
ADAS CONTROL UNIT ......................................... ..184
ADAS CONTROL UNIT : Description ....................184
ADAS CONTROL UNIT : DTC Logic .....................184
ADAS CONTROL UNIT : Diagnosis Procedure .....184
ACCELERATOR PEDAL ACTUATOR .................. ..184
ACCELERATOR PEDAL ACTUATOR : Descrip-
tion .........................................................................
184
ACCELERATOR PEDAL ACTUATOR : DTC Log-
ic ............................................................................
184
ACCELERATOR PEDAL ACTUATOR : Diagnosis
Procedure ..............................................................
184
U150B ECM CAN 3 .........................................185
DTC Logic ............................................................ ..185
Diagnosis Procedure .............................................185
U150C VDC CAN 3 ..........................................186
DTC Logic ............................................................ ..186
Diagnosis Procedure .............................................186
U150D TCM CAN 3 ..........................................187
DTC Logic ............................................................ ..187
Diagnosis Procedure .............................................187
U150E BCM CAN 3 .........................................188
DTC Logic ............................................................ ..188
Diagnosis Procedure .............................................188
U1502 ICC SENSOR CAN COMM CIRC ........189
DTC Logic ............................................................ ..189
Diagnosis Procedure .............................................189
U1513 METER CAN 3 .....................................190
DTC Logic ............................................................ ..190
Diagnosis Procedure .............................................190
U1514 STRG SEN CAN 3 ................................191
DTC Logic ............................................................ ..191
Diagnosis Procedure ............................................ .191
U1515 ICC SENSOR CAN 3 ............................192
DTC Logic ............................................................ .192
Diagnosis Procedure .............................................192
U1517 ACCELERATOR PEDAL ACTUATOR
CAN 3 ...............................................................
193
DTC Logic ............................................................ .193
Diagnosis Procedure .............................................193
U1520 4WD CAN 3 ...........................................194
DTC Logic ............................................................ .194
Diagnosis Procedure .............................................194
POWER SUPPLY AND GROUND CIRCUIT ....195
ADAS CONTROL UNIT .......................................... .195
ADAS CONTROL UNIT : Diagnosis Procedure ....195
ACCELERATOR PEDAL ACTUATOR .................. .195
ACCELERATOR PEDAL ACTUATOR : Diagnosis
Procedure .............................................................
195
SYMPTOM DIAGNOSIS ...........................197
DISTANCE CONTROL ASSIST SYSTEM
SYMPTOMS .................................................... ..
197
Symptom Table .................................................... .197
SWITCH DOES NOT TURN ON / SWITCH
DOES NOT TURN OFF .................................. ..
198
Description ........................................................... .198
Diagnosis Procedure .............................................198
DCA SYSTEM SETTINGS CANNOT BE
TURNED ON/OFF ON THE NAVIGATION
SCREEN ...........................................................
200
Description ........................................................... .200
Diagnosis Procedure .............................................200
DCA SYSTEM NOT ACTIVATED (SWITCH IS
ON) ....................................................................
201
Description ........................................................... .201
Diagnosis Procedure .............................................201
CHIME DOES NOT SOUND .............................203
Description ........................................................... .203
Diagnosis Procedure .............................................203
NO FORCE GENERATED FOR PUTTING
BACK THE ACCELERATOR PEDAL ..............
205
Description ........................................................... .205
Diagnosis Procedure .............................................205
FREQUENTLY CANNOT DETECT THE VEHI-
CLE AHEAD / DETECTION ZONE IS SHORT ..
206
Description ........................................................... .206
Diagnosis Procedure .............................................206
THE SYSTEM DOES NOT DETECT THE VE-
HICLE AHEAD AT ALL ....................................
208
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Description ..........................................................
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208
Diagnosis Procedure .............................................208
NORMAL OPERA

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Description ..........................................................
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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
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DAS-6
LANE DEPARTURE WARNING (LDW) SYSTEM
: Fail-safe (ADAS Control Unit) ..............................
279
LANE DEPARTURE WARNING (LDW) SYSTEM
: Fail-safe (Lane Camera Unit) ...................

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
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C1A24 NP RANGE ......................................... ..358
DTC Logic ........................................................... ..358
Diagnosis Procedure

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C1A24 NP RANGE ......................................... ..358
DTC Logic ........................................................... ..358
Diagnosis Procedure .............................................358
C1A50 ADAS CONTROL UNIT .......................360
DTC Logic ........................................................... ..360
Diagnosis Procedure .............................................360
C1B00 CAMERA UNIT MALF ..........................361
ADAS CONTROL UNIT ......................................... ..361
ADAS CONTROL UNIT : DTC Logic ....................361
ADAS CONTROL UNIT : Diagnosis Procedure ....361
LANE CAMERA UNIT ........................................... ..361
LANE CAMERA UNIT : DTC Logic .......................361
LANE CAMERA UNIT : Diagnosis Procedure .......361
C1B01 CAM AIMING INCMP ...........................363
ADAS CONTROL UNIT ......................................... ..363
ADAS CONTROL UNIT : DTC Logic ....................363
ADAS CONTROL UNIT : Diagnosis Procedure ....363
LANE CAMERA UNIT ........................................... ..363
LANE CAMERA UNIT : DTC Logic .......................363
LANE CAMERA UNIT : Diagnosis Procedure .......364
C1B03 ABNRML TEMP DETECT ....................365
ADAS CONTROL UNIT ......................................... ..365
ADAS CONTROL UNIT : DTC Logic ....................365
ADAS CONTROL UNIT : Diagnosis Procedure ....365
LANE CAMERA UNIT ........................................... ..365
LANE CAMERA UNIT : DTC Logic .......................365
LANE CAMERA UNIT : Diagnosis Procedure .......365
U0104 ADAS CAN 1 ........................................366
DTC Logic ........................................................... ..366
Diagnosis Procedure .............................................366
U0121 VDC CAN 2 ...........................................367
DTC Logic ........................................................... ..367
Diagnosis Procedure .............................................367
U0126 STRG SEN CAN 1 ................................368
DTC Logic ........................................................... ..368
Diagnosis Procedure .............................................368
U0401 ECM CAN 1 ...........................................369
DTC Logic ........................................................... ..369
Diagnosis Procedure .............................................369
U0402 TCM CAN 1 ...........................................370
DTC Logic ........................................................... ..370
Diagnosis Procedure .............................................370
U0405 ADAS CAN 2 ........................................371
DTC Logic ........................................................... ..371
Diagnosis Procedure .............................................371
U0415 VDC CAN 1 ...........................................372
DTC Logic ............................................................ ..372
Diagnosis Procedure .............................................372
U0428 STRG SEN CAN 2 ...............................373
DTC Logic ..............................................................373
Diagnosis Procedure .............................................373
U1000 CAN COMM CIRCUIT .........................374
ADAS CONTROL UNIT ......................................... ..374
ADAS CONTROL UNIT : Description ....................374
ADAS CONTROL UNIT : DTC Logic .....................374
ADAS CONTROL UNIT : Diagnosis Procedure ....374
LANE CAMERA UNIT ............................................ ..374
LANE CAMERA UNIT : Description ......................374
LANE CAMERA UNIT : DTC Logic .......................374
LANE CAMERA UNIT : Diagnosis Procedure .......375
U1010 CONTROL UNIT (CAN) .......................376
ADAS CONTROL UNIT ......................................... ..376
ADAS CONTROL UNIT : Description ....................376
ADAS CONTROL UNIT : DTC Logic .....................376
ADAS CONTROL UNIT : Diagnosis Procedure ....376
LANE CAMERA UNIT ............................................ ..376
LANE CAMERA UNIT : Description ......................376
LANE CAMERA UNIT : DTC Logic .......................376
LANE CAMERA UNIT : Diagnosis Procedure .......376
U150B ECM CAN 3 .........................................377
DTC Logic ............................................................ ..377
Diagnosis Procedure .............................................377
U150C VDC CAN 3 .........................................378
DTC Logic ..............................................................378
Diagnosis Procedure .............................................378
U150D TCM CAN 3 .........................................379
DTC Logic ..............................................................379
Diagnosis Procedure .............................................379
U150E BCM CAN 3 .........................................380
DTC Logic ..............................................................380
Diagnosis Procedure .............................................380
U1500 CAM CAN 2 .........................................381
DTC Logic ..............................................................381
Diagnosis Procedure .............................................381
U1501 CAM CAN 1 .........................................382
DTC Logic ..............................................................382
Diagnosis Procedure .............................................382
U1512 HVAC CAN 3 .......................................383
DTC Logic ............................................................ ..383
Diagnosis Procedure .............................................383
U1513 METER CAN 3 .....................................384
DTC Logic ..............................................................384
Diagnosis Procedure .............................................384
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DAS-8
U1516 CAM CAN 3 ..........................................385
DTC Logic ............................................................ ..385
Diagnosis Procedure ................................

DAS-8
U1516 CAM CAN 3 ..........................................385
DTC Logic ............................................................ ..385
Diagnosis Procedure .............................................385
U1520 4WD CAN 3 ..........................................386
DTC Logic ............................................................ ..386
Diagnosis Procedure .............................................386
POWER SUPPLY AND GROUND CIRCUIT ...387
ADAS CONTROL UNIT ......................................... ..387
ADAS CONTROL UNIT : Diagnosis Procedure .....387
LANE CAMERA UNIT ............................................ ..387
LANE CAMERA UNIT : Diagnosis Procedure .......387
WARNING SYSTEMS SWITCH CIRCUIT .......389
Component Function Check ................................ ..389
Diagnosis Procedure .............................................389
Component Inspection ...........................................390
WARNING SYSTEMS ON INDICATOR CIR-
CUIT .................................................................
391
Component Function Check ................................ ..391
Diagnosis Procedure .............................................391
Component Inspection ...........................................392
WARNING BUZZER CIRCUIT .........................393
Component Function Check ................................ ..393
Diagnosis Procedure .............................................393
SYMPTOM DIAGNOSIS ............................395
LDW & LDP SYSTEM SYMPTOMS ............... .395
Symptom Table ................................................... ..395
LANE DEPARTURE WARNING LAMP DOES
NOT TURNED ON ...........................................
397
Description ........................................................... ..397
Diagnosis Procedure .............................................397
LDP ON INDICATOR LAMP DOES NOT
TURNED ON ....................................................
398
Description ........................................................... ..398
Diagnosis Procedure .............................................398
THE SYSTEM OPERATES EVEN WHEN US-
ING TURN SIGNAL .........................................
399
Description ........................................................... ..399
Diagnosis Procedure .............................................399
LDP SYSTEM SETTINGS CANNOT BE
TURNED ON/OFF ON THE NAVIGATION
SCREEN ..........................................................
400
Description ........................................................... ..400
Diagnosis Procedure .............................................400
NORMAL OPERATING CONDITION ..............401
Description ........................................................... ..401
REMOVAL AND INSTALLATION ..............403
LANE CAMERA UNIT .................................... ..403
Removal and Installation ...................................... .403
WARNING SYSTEMS SWITCH .......................404
Removal and Installation ...................................... .404
DYNAMIC DRIVER ASSISTANCE SWITCH ...405
Exploded View ..................................................... .405
WARNING BUZZER .........................................406
Removal and Installation ...................................... .406
BSW
PRECAUTION ............... ............................
407
PRECAUTIONS .............................................. ..407
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
407
Precaution for BSW System Service ....................407
SYSTEM DESCRIPTION ..........................408
COMPONENT PARTS .................................... ..408
Component Parts Location .................................. .408
Component Description ........................................409
SYSTEM ...........................................................410
System Description .............................................. .410
Fail-safe (ADAS Control Unit) ...............................413
Fail-safe (Side Radar) ...........................................414
OPERATION .....................................................415
Switch Name and Function .................................. .415
System Display and Warning ................................415
HANDLING PRECAUTION ............................ ..417
Precautions for Blind Spot Warning ..................... .417
DIAGNOSIS SYSTEM (ADAS CONTROL
UNIT) .................................................................
418
On Board Diagnosis Function .............................. .418
CONSULT-III Function (ICC/ADAS) .....................419
DIAGNOSIS SYSTEM (SIDE RADAR LH) .......429
CONSULT-III Function (SIDE RADAR LEFT) ...... .429
DIAGNOSIS SYSTEM (SIDE RADAR RH) ......431
CONSULT-III Function (SIDE RADAR RIGHT) ... .431
ECU DIAGNOSIS INFORMATION ............433
ADAS CONTROL UNIT .................................. ..433
Reference Value .................................................. .433
Fail-safe ................................................................438
DTC Inspection Priority Chart ...............................439
DTC Index .............................................................440
SIDE RADAR LH ............................................ ..444
Reference Value .................................................. .444
Fail-safe ................................................................444
DTC Inspection Priority Chart ...............................445
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DTC Index ...........................................................
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SIDE RADAR RH .............................................446
Reference Value .

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DTC Index ...........................................................
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445
SIDE RADAR RH .............................................446
Reference Value ................................................. ..446
Fail-safe ................................................................446
DTC Inspection Priority Chart ...............................447
DTC Index .............................................................447
WIRING DIAGRAM ....................................448
DRIVER ASSISTANCE SYSTEMS ................ ..448
Wiring Diagram ................................................... ..448
BASIC INSPECTION .................................463
DIAGNOSIS AND REPAIR WORK FLOW .... ..463
Work Flow ........................................................... ..463
PRE-INSPECTION FOR DIAGNOSIS ..............466
Inspection Procedure .......................................... ..466
ADDITIONAL SERVICE WHEN REPLACING
SIDE RADAR .................................................. ..
467
Description .......................................................... ..467
Work Procedure ....................................................467
ACTION TEST ..................................................468
Description .......................................................... ..468
Work Procedure ....................................................468
DTC/CIRCUIT DIAGNOSIS .......................470
C1A00 CONTROL UNIT ................................. ..470
DTC Logic ........................................................... ..470
Diagnosis Procedure .............................................470
C1A01 POWER SUPPLY CIRCUIT 1, C1A02
POWER SUPPLY CIRCUIT 2 ..........................
471
DTC Logic ........................................................... ..471
Diagnosis Procedure .............................................471
C1A03 VEHICLE SPEED SENSOR .................472
DTC Logic ........................................................... ..472
Diagnosis Procedure .............................................472
C1A15 GEAR POSITION .................................473
Description .......................................................... ..473
DTC Logic .............................................................473
Diagnosis Procedure .............................................473
C1A24 NP RANGE ...........................................475
DTC Logic ........................................................... ..475
Diagnosis Procedure .............................................475
C1A39 STEERING ANGLE SENSOR ..............477
DTC Logic ........................................................... ..477
Diagnosis Procedure .............................................477
C1B50 SIDE RADAR MALFUNCTION ............478
DTC LOGIC ......................................................... ..478
Diagnosis Procedure .............................................478
C1B51 BSW/BSI INDICATOR SHORT CIR-
CUIT ................................................................
479
DTC Logic ............................................................ ..479
Diagnosis Procedure .............................................479
C1B52 BSW/BSI INDICATOR OPEN CIR-
CUIT ................................................................
480
DTC Logic ..............................................................480
Diagnosis Procedure .............................................480
C1B53 SIDE RADAR RIGHT MALFUNCTION .482
DTC Logic ............................................................ ..482
Diagnosis Procedure .............................................482
C1B54 SIDE RADAR LEFT MALFUNCTION .483
DTC Logic ..............................................................483
Diagnosis Procedure .............................................483
C1B55 RADAR BLOCKAGE ..........................484
DTC Logic ..............................................................484
Diagnosis Procedure .............................................484
U1000 CAN COMM CIRCUIT .........................485
SIDE RADAR LH ................................................... ..485
SIDE RADAR LH : Description ..............................485
SIDE RADAR LH : DTC Logic ...............................485
SIDE RADAR LH : Diagnosis Procedure ...............485
SIDE RADAR RH ................................................... ..485
SIDE RADAR RH : Description .............................485
SIDE RADAR RH : DTC Logic ..............................486
SIDE RADAR RH : Diagnosis Procedure ..............486
ADAS CONTROL UNIT ......................................... ..486
ADAS CONTROL UNIT : Description ....................486
ADAS CONTROL UNIT : DTC Logic .....................486
ADAS CONTROL UNIT : Diagnosis Procedure ....486
U1010 CONTROL UNIT (CAN) .......................488
SIDE RADAR LH ................................................... ..488
SIDE RADAR LH : Description ..............................488
SIDE RADAR LH : DTC Logic ...............................488
SIDE RADAR LH : Diagnosis Procedure ...............488
SIDE RADAR RH ................................................... ..488
SIDE RADAR RH : Description .............................488
SIDE RADAR RH : DTC Logic ..............................488
SIDE RADAR RH : Diagnosis Procedure ..............488
ADAS CONTROL UNIT ......................................... ..488
ADAS CONTROL UNIT : Description ....................488
ADAS CONTROL UNIT : DTC Logic .....................489
ADAS CONTROL UNIT : Diagnosis Procedure ....489
U0104 ADAS CAN 1 .......................................490
DTC Logic ............................................................ ..490
Diagnosis Procedure .............................................490
U0121 VDC CAN 2 ..........................................491
DTC Logic ............................................................ ..491
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DAS-10
Diagnosis Procedure .............................................491
U0126 STRG SEN CAN 1 ................................492
DTC Logic .......................................................

DAS-10
Diagnosis Procedure .............................................491
U0126 STRG SEN CAN 1 ................................492
DTC Logic ............................................................ ..492
Diagnosis Procedure .............................................492
U0401 ECM CAN 1 ..........................................493
DTC Logic ............................................................ ..493
Diagnosis Procedure .............................................493
U0402 TCM CAN 1 ..........................................494
DTC Logic ............................................................ ..494
Diagnosis Procedure .............................................494
U0405 ADAS CAN 2 ........................................495
DTC Logic ............................................................ ..495
Diagnosis Procedure .............................................495
U0415 VDC CAN 1 ..........................................496
DTC Logic ............................................................ ..496
Diagnosis Procedure .............................................496
U0428 STRG SEN CAN 2 ................................497
DTC Logic ............................................................ ..497
Diagnosis Procedure .............................................497
U150B ECM CAN 3 .........................................498
DTC Logic ............................................................ ..498
Diagnosis Procedure .............................................498
U150C VDC CAN 3 ..........................................499
DTC Logic ............................................................ ..499
Diagnosis Procedure .............................................499
U150D TCM CAN 3 ..........................................500
DTC Logic ............................................................ ..500
Diagnosis Procedure .............................................500
U150E BCM CAN 3 .........................................501
DTC Logic ............................................................ ..501
Diagnosis Procedure .............................................501
U1503 SIDE RDR L CAN 2 ..............................502
DTC Logic ............................................................ ..502
Diagnosis Procedure .............................................502
U1504 SIDE RDR L CAN 1 ..............................503
DTC Logic ............................................................ ..503
Diagnosis Procedure .............................................503
U1505 SIDE RDR R CAN 2 .............................504
DTC Logic ............................................................ ..504
Diagnosis Procedure .............................................504
U1506 SIDE RDR R CAN 1 .............................505
DTC Logic ............................................................ ..505
Diagnosis Procedure .............................................505
U1507 LOST COMM(SIDE RDR R) .................506
DTC Logic ............................................................ ..506
Diagnosis Procedure .............................................506
U1508 LOST COMM(SIDE RDR L) .................507
DTC Logic ............................................................ .507
Diagnosis Procedure .............................................507
U1513 METER CAN 3 ......................................508
DTC Logic ............................................................ .508
Diagnosis Procedure .............................................508
U1514 STRG SEN CAN 3 ................................509
DTC Logic ............................................................ .509
Diagnosis Procedure .............................................509
U1518 SIDE RDR L CAN 3 ..............................510
DTC Logic ............................................................ .510
Diagnosis Procedure .............................................510
U1519 SIDE RDR R CAN 3 ..............................511
DTC Logic ............................................................ .511
Diagnosis Procedure .............................................511
POWER SUPPLY AND GROUND CIRCUIT ....512
ADAS CONTROL UNIT .......................................... .512
ADAS CONTROL UNIT : Diagnosis Procedure ....512
SIDE RADAR LH .................................................... .512
SIDE RADAR LH : Diagnosis Procedure ..............512
SIDE RADAR RH ................................................... .513
SIDE RADAR RH : Diagnosis Procedure .............513
RIGHT/LEFT SWITCHING SIGNAL CIRCUIT ..514
Diagnosis Procedure ............................................ .514
WARNING SYSTEMS SWITCH CIRCUIT ........515
Component Function Check ................................ .515
Diagnosis Procedure .............................................515
Component Inspection ..........................................516
WARNING SYSTEMS ON INDICATOR CIR-
CUIT ..................................................................
517
Component Function Check ................................ .517
Diagnosis Procedure .............................................517
Component Inspection ..........................................518
WARNING BUZZER CIRCUIT .........................519
Component Function Check ................................ .519
Diagnosis Procedure .............................................519
SYMPTOM DIAGNOSIS ...........................521
BSW SYSTEM SYMPTOMS .......................... ..521
Symptom Table .................................................... .521
NORMAL OPERATING CONDITION ...............522
Description ........................................................... .522
REMOVAL AND INSTALLATION .............523
SIDE RADAR .................................................. ..523
Removal and Installation ...................................... .523
BSW INDICATOR .............................................525
Removal and Installation ...................................... .525
Revision: 2010 May2011 QX56

Page 976 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS-11
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WARNING BUZZER ....................................... ..526
Removal and Installation ..................................... ..526
WARNING SYSTEMS SWITCH ...

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