diagram NISSAN TEANA 2008 User Guide

DRIVER SEAT CONTROL UNIT
ADP-117
< ECU DIAGNOSIS >
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Wiring Diagram - AUTOMATIC DRIVE POSITIONER CONTROL SYSTEM -
INFOID:0000000003759212
JCJWM0303GB

AV
AV-1
DRIVER INFORMATION & MULTIMEDIA
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SECTION AV
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CONTENTS
AUDIO, VISUAL & NAVIGATION SYSTEM
AUDIO SYSTEM
BASIC INSPECTION ...................................
11
DIAGNOSIS AND REPAIR WORKFLOW .........11
Work Flow ...............................................................11
FUNCTION DIAGNOSIS ..............................13
AUDIO SYSTEM .................................................13
System Diagram ......................................................13
System Description .................................................13
Component Parts Location ......................................14
Component Description ...........................................14
DIAGNOSIS SYSTEM (AUDIO UNIT) ................15
Diagnosis Description .............................................15
COMPONENT DIAGNOSIS .........................19
POWER SUPPLY AND GROUND CIRCUIT ......19
AUDIO UNIT ..............................................................19
AUDIO UNIT : Diagnosis Procedure .......................19
STEERING SWITCH SIGNAL A CIRCUIT .........20
Description ..............................................................20
Diagnosis Procedure ...............................................20
Component Inspection ............................................21
STEERING SWITCH SIGNAL B CIRCUIT .........22
Description ..............................................................22
Diagnosis Procedure ...............................................22
Component Inspection ............................................23
STEERING SWITCH SIGNAL GND CIRCUIT ....24
Description ..............................................................24
Diagnosis Procedure ...............................................24
Component Inspection ............................................25
ECU DIAGNOSIS .........................................26
AUDIO UNIT .......................................................26
Reference Values ....................................................26
Wiring Diagram — BASE AUDIO — ........................28
SYMPTOM DIAGNOSIS ..............................34
AUDIO SYSTEM SYMPTOMS ..........................34
Symptom Table .......................................................34
NORMAL OPERATING CONDITION ...............35
Description ...............................................................35
PRECAUTION ..............................................36
PRECAUTIONS .................................................36
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
36
Precaution for Trouble Diagnosis ............................36
Precaution for Harness Repair ................................36
ON-VEHICLE REPAIR .................................37
AUDIO UNIT ......................................................37
Exploded View .........................................................37
Removal and Installation .........................................37
AUDIO DISPLAY ...............................................38
Exploded View .........................................................38
Removal and Installation .........................................38
FRONT DOOR SPEAKER ................................39
Exploded View .........................................................39
Removal and Installation .........................................39
REAR DOOR SPEAKER ..................................40
Exploded View .........................................................40
Removal and Installation .........................................40
FRONT SQUAWKER ........................................41
Exploded View .........................................................41
Removal and Installation .........................................41
STEERING SWITCH .........................................42

AV-2
Exploded View ........................................................42
Removal and Installation ........................................42
ANTENNA AMP. ................................................43
Exploded View ........................................................43
Removal and Installation ........................................43
ANTENNA FEEDER (RADIO) ...........................44
Harness Layout ......................................................44
BASE AUDIO AND DISPLAY SYSTEM
BASIC INSPECTION ...................................
45
DIAGNOSIS AND REPAIR WORKFLOW .........45
Work Flow ...............................................................45
INSPECTION AND ADJUSTMENT ...................47
ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL ..................................
47
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Description ....
47
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Special Re-
pair Requirement ....................................................
47
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT ........................................................
47
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ................................
47
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .....
47
PREDICTED COURSE LINE CENTER POSITION
ADJUSTMENT ..........................................................
47
PREDICTED COURSE LINE CENTER POSI-
TION ADJUSTMENT : Description .........................
47
PREDICTED COURSE LINE CENTER POSI-
TION ADJUSTMENT : Special Repair Require-
ment ........................................................................
47
FUNCTION DIAGNOSIS .............................48
MULTI AV SYSTEM ...........................................48
System Diagram .....................................................48
System Description .................................................48
Component Parts Location .....................................50
Component Description ..........................................51
AUDIO SYSTEM ................................................53
System Diagram .....................................................53
System Description .................................................53
Component Parts Location .....................................54
Component Description ..........................................55
REAR VIEW MONITOR SYSTEM .....................56
System Diagram .....................................................56
System Description .................................................56
Component Parts Location .....................................58
Component Description ..........................................59
DIAGNOSIS SYSTEM (AV CONTROL UNIT) ...60
Diagnosis Description .............................................60
CONSULT-III Function (MULTI AV) ........................68
COMPONENT DIAGNOSIS .......................72
U1000 CAN COMM CIRCUIT ............................72
Description ..............................................................72
DTC Logic ...............................................................72
Diagnosis Procedure ..............................................72
U1010 CONTROL UNIT (CAN) .........................73
Description ..............................................................73
DTC Logic ...............................................................73
Diagnosis Procedure ...............................................73
U1310 AV CONTROL UNIT ..............................74
Description ..............................................................74
DTC Logic ...............................................................74
U1200 AV CONTROL UNIT ..............................75
Description ..............................................................75
DTC Logic ...............................................................75
U1216 AV CONTROL UNIT ..............................76
Description ..............................................................76
DTC Logic ...............................................................76
U1243 DISPLAY UNIT .......................................77
Description ..............................................................77
DTC Logic ...............................................................77
Diagnosis Procedure ...............................................77
U1250 CAMERA CONTROL UNIT ....................79
Description ..............................................................79
DTC Logic ...............................................................79
Diagnosis Procedure ...............................................79
U1300 AV COMM CIRCUIT ...............................81
Description ..............................................................81
POWER SUPPLY AND GROUND CIRCUIT .....82
AV CONTROL UNIT ..................................................82
AV CONTROL UNIT : Diagnosis Procedure ...........82
DISPLAY UNIT ..........................................................82
DISPLAY UNIT : Diagnosis Procedure ...................82
MULTIFUNCTION SWITCH ......................................83
MULTIFUNCTION SWITCH : Diagnosis Proce-
dure .........................................................................
83
CAMERA CONTROL UNIT .......................................84
CAMERA CONTROL UNIT : Diagnosis Procedure
...
84
RGB (R: RED) SIGNAL CIRCUIT (AV CON-
TROL UNIT TO DISPLAY UNIT) .......................
86
Description ..............................................................86
Diagnosis Procedure ...............................................86
RGB (G: GREEN) SIGNAL CIRCUIT (AV
CONTROL UNIT TO DISPLAY UNIT) ...............
87

AV
AV-3
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Diagnosis Procedure ...............................................87
RGB (B: BLUE) SIGNAL CIRCUIT (AV CON-
TROL UNIT TO DISPLAY UNIT) ........................
88
Description ..............................................................88
Diagnosis Procedure ...............................................88
RGB SYNCHRONIZING SIGNAL CIRCUIT
(AV CONTROL UNIT TO DISPLAY UNIT) ........
89
Description ..............................................................89
Diagnosis Procedure ...............................................89
RGB AREA (YS) SIGNAL CIRCUIT ..................90
Description ..............................................................90
Diagnosis Procedure ...............................................90
HORIZONTAL SYNCHRONIZING (HP) SIG-
NAL CIRCUIT .....................................................
91
Description ..............................................................91
Diagnosis Procedure ...............................................91
VERTICAL SYNCHRONIZING (VP) SIGNAL
CIRCUIT .............................................................
92
Description ..............................................................92
Diagnosis Procedure ...............................................92
AUX IMAGE SIGNAL CIRCUIT .........................93
Description ..............................................................93
Diagnosis Procedure ...............................................93
DISK EJECT SIGNAL CIRCUIT .........................94
Description ..............................................................94
Diagnosis Procedure ...............................................94
REAR VIEW CAMERA POWER SUPPLY .........95
Description ..............................................................95
Diagnosis Procedure ...............................................95
CAMERA IMAGE SIGNAL CIRCUIT .................96
Description ..............................................................96
Diagnosis Procedure ...............................................96
COMPOSITE IMAGE SIGNAL CIRCUIT ...........97
Description ..............................................................97
Diagnosis Procedure ...............................................97
STEERING ANGLE SENSOR SIGNAL CIR-
CUIT ....................................................................
98
Description ..............................................................98
Diagnosis Procedure ...............................................98
STEERING SWITCH SIGNAL A CIRCUIT .......100
Description ............................................................100
Diagnosis Procedure .............................................100
Component Inspection ..........................................101
STEERING SWITCH SIGNAL B CIRCUIT .......102
Description ............................................................102
Diagnosis Procedure .............................................102
Component Inspection ..........................................103
STEERING SWITCH SIGNAL GND CIRCUIT .104
Description .............................................................104
Diagnosis Procedure .............................................104
Component Inspection ...........................................105
ECU DIAGNOSIS .......................................106
AV CONTROL UNIT ........................................106
Reference Value ....................................................106
Wiring Diagram — BASE AUDIO AND DISPLAY
SYSTEM — ...........................................................
112
DTC Index .............................................................126
DISPLAY UNIT ................................................128
Reference Value ....................................................128
Wiring Diagram — BASE AUDIO AND DISPLAY
SYSTEM — ...........................................................
131
CAMERA CONTROL UNIT .............................146
Reference Values ..................................................146
Wiring Diagram — BASE AUDIO AND DISPLAY
SYSTEM — ...........................................................
149
SYMPTOM DIAGNOSIS ............................164
MULTI AV SYSTEM SYMPTOMS ..................164
Symptom Table .....................................................164
NORMAL OPERATING CONDITION .............167
Description .............................................................167
PRECAUTION ............................................169
PRECAUTIONS ...............................................169
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
169
Precaution for Trouble Diagnosis ..........................169
Precaution for Harness Repair ..............................169
ON-VEHICLE REPAIR ...............................170
AV CONTROL UNIT ........................................170
Exploded View .......................................................170
Removal and Installation .......................................170
DISPLAY UNIT ................................................171
Exploded View .......................................................171
Removal and Installation .......................................171
FRONT DOOR SPEAKER ..............................172
Exploded View .......................................................172
Removal and Installation .......................................172
REAR DOOR SPEAKER ................................173
Exploded View .......................................................173
Removal and Installation .......................................173
FRONT SQUAWKER ......................................174
Exploded View .......................................................174
Removal and Installation .......................................174

AV-4
ANTENNA AMP. ..............................................175
Exploded View .......................................................175
Removal and Installation .......................................175
MULTIFUNCTION SWITCH .............................176
Exploded View .......................................................176
Removal and Installation .......................................176
PRESET SWITCH ............................................177
Exploded View .......................................................177
Removal and Installation .......................................177
REAR CONTROL SWITCH .............................178
Exploded View .......................................................178
Removal and Installation .......................................178
AUXILIARY INPUT JACKS .............................179
Exploded View .......................................................179
Removal and Installation .......................................179
CAMERA CONTROL UNIT .............................180
Exploded View .......................................................180
Removal and Installation .......................................180
REAR VIEW CAMERA ....................................181
Exploded View .......................................................181
Removal and Installation .......................................181
Adjustment .............................................................181
STEERING ANGLE SENSOR .........................183
Exploded View .......................................................183
Removal and Installation .......................................183
ANTENNA FEEDER (RADIO) .........................184
Harness Layout .....................................................184
BOSE AUDIO WITHOUT NAVIGATION
BASIC INSPECTION ..................................
185
DIAGNOSIS AND REPAIR WORKFLOW .......185
Work Flow ..............................................................185
INSPECTION AND ADJUSTMENT .................187
ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL .................................
187
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Description ...
187
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Special Re-
pair Requirement ...................................................
187
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .......................................................
187
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ...............................
187
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement ....
187
PREDICTED COURSE LINE CENTER POSITION
ADJUSTMENT .........................................................
187
PREDICTED COURSE LINE CENTER POSI-
TION ADJUSTMENT : Description .......................
187
PREDICTED COURSE LINE CENTER POSI-
TION ADJUSTMENT : Special Repair Require-
ment ......................................................................
187
FUNCTION DIAGNOSIS ...........................188
MULTI AV SYSTEM .........................................188
System Diagram ...................................................188
System Description ...............................................188
Component Parts Location ...................................190
Component Description ........................................191
AUDIO SYSTEM ...............................................193
System Diagram ...................................................193
System Description ...............................................193
Component Parts Location ...................................194
Component Description ........................................195
REAR VIEW MONITOR SYSTEM ....................196
System Diagram ...................................................196
System Description ...............................................196
Component Parts Location ...................................198
Component Description ........................................199
DIAGNOSIS SYSTEM (AV CONTROL UNIT) ..200
Diagnosis Description ...........................................200
CONSULT-III Function (MULTI AV) ......................211
COMPONENT DIAGNOSIS ......................216
U1000 CAN COMM CIRCUIT ...........................216
Description ............................................................216
DTC Logic .............................................................216
Diagnosis Procedure ............................................216
U1010 CONTROL UNIT (CAN) ........................217
Description ............................................................217
DTC Logic .............................................................217
Diagnosis Procedure .............................................217
U1310 AV CONTROL UNIT .............................218
Description ............................................................218
DTC Logic .............................................................218
U1200 AV CONTROL UNIT .............................219
Description ............................................................219
DTC Logic .............................................................219
U1216 AV CONTROL UNIT .............................220
Description ............................................................220
DTC Logic .............................................................220
U1231 BOSE AMP. ..........................................221
Description ............................................................221
DTC Logic .............................................................221
U1243 DISPLAY UNIT ......................................222
Description ............................................................222
DTC Logic .............................................................222
Diagnosis Procedure .............................................222

AV-6
Description .............................................................249
Diagnosis Procedure .............................................249
REAR VIEW CAMERA POWER SUPPLY ......250
Description .............................................................250
Diagnosis Procedure .............................................250
CAMERA IMAGE SIGNAL CIRCUIT ...............251
Description .............................................................251
Diagnosis Procedure .............................................251
COMPOSITE IMAGE SIGNAL CIRCUIT .........252
Description .............................................................252
Diagnosis Procedure .............................................252
STEERING ANGLE SENSOR SIGNAL CIR-
CUIT .................................................................
253
Description .............................................................253
Diagnosis Procedure .............................................253
STEERING SWITCH SIGNAL A CIRCUIT ......255
Description .............................................................255
Diagnosis Procedure .............................................255
Component Inspection ...........................................256
STEERING SWITCH SIGNAL B CIRCUIT ......257
Description .............................................................257
Diagnosis Procedure .............................................257
Component Inspection ...........................................258
STEERING SWITCH SIGNAL GND CIRCUIT .259
Description .............................................................259
Diagnosis Procedure .............................................259
Component Inspection ...........................................260
ECU DIAGNOSIS .......................................261
AV CONTROL UNIT ........................................261
Reference Value ....................................................261
Wiring Diagram — BOSE AUDIO WITHOUT NAV-
IGATION SYSTEM — ...........................................
267
DTC Index .............................................................284
DISPLAY UNIT ................................................287
Reference Value ....................................................287
Wiring Diagram — BOSE AUDIO WITHOUT NAV-
IGATION SYSTEM — ...........................................
290
BOSE AMP. .....................................................308
Reference Value ....................................................308
Wiring Diagram — BOSE AUDIO WITHOUT NAV-
IGATION SYSTEM — ...........................................
312
DVD PLAYER ..................................................330
Reference Values ..................................................330
Wiring Diagram — BOSE AUDIO WITHOUT NAV-
IGATION SYSTEM — ...........................................
333
CAMERA CONTROL UNIT .............................351
Reference Values ..................................................351
Wiring Diagram — BOSE AUDIO WITHOUT NAV-
IGATION SYSTEM — ...........................................
354
SYMPTOM DIAGNOSIS ...........................372
MULTI AV SYSTEM SYMPTOMS ....................372
Symptom Table .....................................................372
NORMAL OPERATING CONDITION ...............375
Description ............................................................375
PRECAUTION ...........................................377
PRECAUTIONS ................................................377
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
377
Precaution for Trouble Diagnosis ..........................377
Precaution for Harness Repair ..............................377
ON-VEHICLE REPAIR ..............................378
AV CONTROL UNIT .........................................378
Exploded View ......................................................378
Removal and Installation .......................................378
DISPLAY UNIT .................................................379
Exploded View ......................................................379
Removal and Installation .......................................379
FRONT DOOR SPEAKER ................................380
Exploded View ......................................................380
Removal and Installation .......................................380
REAR DOOR SPEAKER ..................................381
Exploded View ......................................................381
Removal and Installation .......................................381
FRONT SQUAWKER .......................................382
Exploded View ......................................................382
Removal and Installation .......................................382
REAR SQUAWKER ..........................................383
Exploded View ......................................................383
Removal and Installation .......................................383
CENTER SPEAKER .........................................384
Exploded View ......................................................384
Removal and Installation .......................................384
WOOFER ..........................................................385
Exploded View ......................................................385
Removal and Installation .......................................385
BOSE AMP. ......................................................386
Exploded View ......................................................386
Removal and Installation .......................................386
ANTENNA AMP. ...............................................387
Exploded View ......................................................387
Removal and Installation .......................................387
MULTIFUNCTION SWITCH .............................388
Exploded View ......................................................388
Removal and Installation .......................................388

AV
AV-7
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PRESET SWITCH ............................................389
Exploded View ......................................................389
Removal and Installation .......................................389
REAR CONTROL SWITCH ..............................390
Exploded View ......................................................390
Removal and Installation .......................................390
DVD PLAYER ...................................................391
Exploded View ......................................................391
Removal and Installation .......................................391
AUXILIARY INPUT JACKS ..............................392
Exploded View ......................................................392
Removal and Installation .......................................392
CAMERA CONTROL UNIT ..............................393
Exploded View ......................................................393
Removal and Installation .......................................393
REAR VIEW CAMERA .....................................394
Exploded View ......................................................394
Removal and Installation .......................................394
Adjustment ............................................................394
STEERING ANGLE SENSOR ..........................396
Exploded View ......................................................396
Removal and Installation .......................................396
ANTENNA FEEDER (RADIO) ..........................397
Harness Layout .....................................................397
BOSE AUDIO WITH NAVIGATION
BASIC INSPECTION .................................
398
DIAGNOSIS AND REPAIR WORKFLOW .......398
Work Flow .............................................................398
INSPECTION AND ADJUSTMENT ..................400
ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL .................................
400
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Description ..
400
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Special Re-
pair Requirement ...................................................
400
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT ......................................................
400
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ..............................
400
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement ...
400
PREDICTED COURSE LINE CENTER POSITION
ADJUSTMENT .........................................................
400
PREDICTED COURSE LINE CENTER POSI-
TION ADJUSTMENT : Description .......................
400
PREDICTED COURSE LINE CENTER POSI-
TION ADJUSTMENT : Special Repair Require-
ment ......................................................................
400
FUNCTION DIAGNOSIS ............................401
MULTI AV SYSTEM ........................................401
System Diagram ....................................................401
System Description ................................................401
Component Parts Location ....................................404
Component Description .........................................405
AUDIO SYSTEM .............................................407
System Diagram ....................................................407
System Description ................................................407
Component Parts Location ....................................408
Component Description .........................................409
NAVIGATION SYSTEM ..................................410
System Diagram ....................................................410
System Description ................................................410
Component Parts Location ....................................413
Component Description .........................................414
REAR VIEW MONITOR SYSTEM ...................415
System Diagram ....................................................415
System Description ................................................415
Component Parts Location ....................................417
Component Description .........................................418
DIAGNOSIS SYSTEM (AV CONTROL UNIT) .419
Diagnosis Description ............................................419
CONSULT-III Function (MULTI AV) ......................434
COMPONENT DIAGNOSIS .......................440
U1000 CAN COMM CIRCUIT .........................440
Description .............................................................440
DTC Logic ..............................................................440
Diagnosis Procedure ............................................440
U1010 CONTROL UNIT (CAN) .......................441
Description .............................................................441
DTC Logic ..............................................................441
Diagnosis Procedure .............................................441
U1310 AV CONTROL UNIT ............................442
Description .............................................................442
DTC Logic ..............................................................442
U1200 AV CONTROL UNIT ............................443
Description .............................................................443
DTC Logic ..............................................................443
U1216 AV CONTROL UNIT ............................444
Description .............................................................444
DTC Logic ..............................................................444
U1231 BOSE AMP. .........................................445
Description .............................................................445
DTC Logic ..............................................................445
U1243 DISPLAY UNIT ....................................446
Description .............................................................446
DTC Logic ..............................................................446
Diagnosis Procedure .............................................446

AV
AV-9
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473
HORIZONTAL SYNCHRONIZING (HP) SIG-
NAL CIRCUIT ...................................................
474
Description ............................................................474
Diagnosis Procedure .............................................474
VERTICAL SYNCHRONIZING (VP) SIGNAL
CIRCUIT ...........................................................
475
Description ............................................................475
Diagnosis Procedure .............................................475
RGB (R: RED) SIGNAL CIRCUIT (NAVI CON-
TROL UNIT TO AV CONTROL UNIT) .............
476
Description ............................................................476
Diagnosis Procedure .............................................476
RGB (G: GREEN) SIGNAL CIRCUIT (NAVI
CONTROL UNIT TO AV CONTROL UNIT) .....
477
Description ............................................................477
Diagnosis Procedure .............................................477
RGB (B: BLUE) SIGNAL CIRCUIT (NAVI
CONTROL UNIT TO AV CONTROL UNIT) .....
478
Description ............................................................478
Diagnosis Procedure .............................................478
RGB SYNCHRONIZING SIGNAL CIRCUIT
(NAVI CONTROL UNIT TO AV CONTROL
UNIT) ................................................................
479
Description ............................................................479
Diagnosis Procedure .............................................479
AUX IMAGE SIGNAL CIRCUIT .......................480
Description ............................................................480
Diagnosis Procedure .............................................480
DISK EJECT SIGNAL CIRCUIT .......................481
Description ............................................................481
Diagnosis Procedure .............................................481
MICROPHONE SIGNAL CIRCUIT ...................482
Description ............................................................482
Diagnosis Procedure .............................................482
REAR VIEW CAMERA POWER SUPPLY .......484
Description ............................................................484
Diagnosis Procedure .............................................484
CAMERA IMAGE SIGNAL CIRCUIT ...............485
Description ............................................................485
Diagnosis Procedure .............................................485
COMPOSITE IMAGE SIGNAL CIRCUIT .........486
Description ............................................................486
Diagnosis Procedure .............................................486
STEERING ANGLE SENSOR SIGNAL CIR-
CUIT ..................................................................
487
Description ............................................................487
Diagnosis Procedure .............................................487
STEERING SWITCH SIGNAL A CIRCUIT .....489
Description .............................................................489
Diagnosis Procedure .............................................489
Component Inspection ...........................................490
STEERING SWITCH SIGNAL B CIRCUIT .....491
Description .............................................................491
Diagnosis Procedure .............................................491
Component Inspection ...........................................492
STEERING SWITCH SIGNAL GND CIRCUIT .493
Description .............................................................493
Diagnosis Procedure .............................................493
Component Inspection ...........................................494
ECU DIAGNOSIS .......................................495
AV CONTROL UNIT ........................................495
Reference Value ....................................................495
Wiring Diagram — BOSE AUDIO WITH NAVIGA-
TION SYSTEM — ..................................................
502
DTC Index .............................................................521
NAVI CONTROL UNIT ....................................524
Reference Value ....................................................524
Wiring Diagram — BOSE AUDIO WITH NAVIGA-
TION SYSTEM — ..................................................
527
DISPLAY UNIT ................................................547
Reference Value ....................................................547
Wiring Diagram — BOSE AUDIO WITH NAVIGA-
TION SYSTEM — ..................................................
550
BOSE AMP. .....................................................570
Reference Value ....................................................570
Wiring Diagram — BOSE AUDIO WITH NAVIGA-
TION SYSTEM — ..................................................
574
DVD PLAYER ..................................................594
Reference Values ..................................................594
Wiring Diagram — BOSE AUDIO WITH NAVIGA-
TION SYSTEM — ..................................................
597
CAMERA CONTROL UNIT .............................617
Reference Values ..................................................617
Wiring Diagram — BOSE AUDIO WITH NAVIGA-
TION SYSTEM — ..................................................
620
SYMPTOM DIAGNOSIS ............................640
MULTI AV SYSTEM SYMPTOMS ..................640
Symptom Table .....................................................640
NORMAL OPERATING CONDITION .............645
Description .............................................................645
PRECAUTION ............................................647
PRECAUTIONS ...............................................647
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
647

AV
AUDIO SYSTEM
AV-13
< FUNCTION DIAGNOSIS >[AUDIO SYSTEM]
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FUNCTION DIAGNOSIS
AUDIO SYSTEM
System DiagramINFOID:0000000003765588
System DescriptionINFOID:0000000003765589
AUDIO SYSTEM
The audio system consists of the following components.
 Audio unit
 Antenna amp.
 Glass antenna
 Steering switch
 Front door speakers
 Rear door speakers
 Front squawkers
 Audio display unit
AM/FM Radio Mode
 AM/FM radio tuner is integrated into audio unit.
 When AM/FM radio waves are received by rear window glass antenna, the radio waves are amplified by an
antenna amp. to input them to audio unit. Sound signals are output to each speaker for the audio unit. The
FM sub antenna is installed on the rear window glass and the audio unit is received.
CD Mode
 The audio unit has CD function.
 The audio unit outputs sound signals to each speaker when CD is inserted into the audio unit.
JSNIA1295GB

AV-28
< ECU DIAGNOSIS >[AUDIO SYSTEM]
AUDIO UNIT
Wiring Diagram — BASE AUDIO —
INFOID:0000000003765604
JCNWM0876GB