ad blue NISSAN TEANA 2008 Service Manual

AV
AV-3
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87
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
AV-5
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U1250 CAMERA CONTROL UNIT ..................224
Description ............................................................224
DTC Logic .............................................................224
Diagnosis Procedure .............................................224
U1260, U1261, U1262, U1263 CENTER
SPEAKER .........................................................
226
Description ............................................................226
DTC Logic .............................................................226
Diagnosis Procedure .............................................226
U1264, U1265, U1266, U1267 FRONT RIGHT
DOOR SPEAKER .............................................
227
Description ............................................................227
DTC Logic .............................................................227
Diagnosis Procedure .............................................227
U1268, U1269, U126A, U126B REAR RIGHT
DOOR SPEAKER .............................................
228
Description ............................................................228
DTC Logic .............................................................228
Diagnosis Procedure .............................................228
U126C, U126D, U126E, U126F REAR RIGHT
SQUAWKER/ RIGHT WOOFER ......................
229
Description ............................................................229
DTC Logic .............................................................229
Diagnosis Procedure .............................................229
U1274, U1275, U1276, U1277 REAR LEFT
SQUAWKER/LEFT WOOFER .........................
230
Description ............................................................230
DTC Logic .............................................................230
Diagnosis Procedure .............................................230
U1278, U1279, U127A, U127B REAR LEFT
DOOR SPEAKER .............................................
231
Description ............................................................231
DTC Logic .............................................................231
Diagnosis Procedure .............................................231
U127C, U127D, U127E, U127F FRONT LEFT
DOOR SPEAKER .............................................
232
Description ............................................................232
DTC Logic .............................................................232
Diagnosis Procedure .............................................232
U1294, U1295, U1296, U1297 FRONT RIGHT
SQUAWKER .....................................................
233
Description ............................................................233
DTC Logic .............................................................233
Diagnosis Procedure .............................................233
U1298, U1299, U129A, U129B FRONT LEFT
SQUAWKER .....................................................
234
Description ............................................................234
DTC Logic .............................................................234
Diagnosis Procedure .............................................234
U1300 AV COMM CIRCUIT .............................235
Description .............................................................235
POWER SUPPLY AND GROUND CIRCUIT ..236
AV CONTROL UNIT ................................................236
AV CONTROL UNIT : Diagnosis Procedure .........236
DISPLAY UNIT .........................................................236
DISPLAY UNIT : Diagnosis Procedure ..................236
MULTIFUNCTION SWITCH .....................................237
MULTIFUNCTION SWITCH : Diagnosis Proce-
dure .......................................................................
237
BOSE AMP. .............................................................238
BOSE AMP. : Diagnosis Procedure ......................238
CAMERA CONTROL UNIT ......................................239
CAMERA CONTROL UNIT : Diagnosis Procedure
..
239
DVD PLAYER ..........................................................239
DVD PLAYER : Diagnosis Procedure ...................239
RGB (R: RED) SIGNAL CIRCUIT (AV CON-
TROL UNIT TO DISPLAY UNIT) ....................
241
Description .............................................................241
Diagnosis Procedure .............................................241
RGB (G: GREEN) SIGNAL CIRCUIT (AV
CONTROL UNIT TO DISPLAY UNIT) ............
242
Description .............................................................242
Diagnosis Procedure .............................................242
RGB (B: BLUE) SIGNAL CIRCUIT (AV CON-
TROL UNIT TO DISPLAY UNIT) ....................
243
Description .............................................................243
Diagnosis Procedure .............................................243
RGB SYNCHRONIZING SIGNAL CIRCUIT
(AV CONTROL UNIT TO DISPLAY UNIT) .....
244
Description .............................................................244
Diagnosis Procedure .............................................244
RGB AREA (YS) SIGNAL CIRCUIT ...............245
Description .............................................................245
Diagnosis Procedure .............................................245
HORIZONTAL SYNCHRONIZING (HP) SIG-
NAL CIRCUIT ..................................................
246
Description .............................................................246
Diagnosis Procedure .............................................246
VERTICAL SYNCHRONIZING (VP) SIGNAL
CIRCUIT ..........................................................
247
Description .............................................................247
Diagnosis Procedure .............................................247
AUX IMAGE SIGNAL CIRCUIT ......................248
Description .............................................................248
Diagnosis Procedure .............................................248
DISK EJECT SIGNAL CIRCUIT .....................249

AV-8
U1250 CAMERA CONTROL UNIT ..................448
Description .............................................................448
DTC Logic ..............................................................448
Diagnosis Procedure .............................................448
U1260, U1261, U1262, U1263 CENTER
SPEAKER ........................................................
450
Description .............................................................450
DTC Logic ..............................................................450
Diagnosis Procedure .............................................450
U1264, U1265, U1266, U1267 FRONT RIGHT
DOOR SPEAKER ............................................
451
Description .............................................................451
DTC Logic ..............................................................451
Diagnosis Procedure .............................................451
U1268, U1269, U126A, U126B REAR RIGHT
DOOR SPEAKER ............................................
452
Description .............................................................452
DTC Logic ..............................................................452
Diagnosis Procedure .............................................452
U126C, U126D, U126E, U126F REAR RIGHT
SQUAWKER/ RIGHT WOOFER ......................
453
Description .............................................................453
DTC Logic ..............................................................453
Diagnosis Procedure .............................................453
U1274, U1275, U1276, U1277 REAR LEFT
SQUAWKER/LEFT WOOFER .........................
454
Description .............................................................454
DTC Logic ..............................................................454
Diagnosis Procedure .............................................454
U1278, U1279, U127A, U127B REAR LEFT
DOOR SPEAKER ............................................
455
Description .............................................................455
DTC Logic ..............................................................455
Diagnosis Procedure .............................................455
U127C, U127D, U127E, U127F FRONT LEFT
DOOR SPEAKER ............................................
456
Description .............................................................456
DTC Logic ..............................................................456
Diagnosis Procedure .............................................456
U1294, U1295, U1296, U1297 FRONT RIGHT
SQUAWKER ....................................................
457
Description .............................................................457
DTC Logic ..............................................................457
Diagnosis Procedure .............................................457
U1298, U1299, U129A, U129B FRONT LEFT
SQUAWKER ....................................................
458
Description .............................................................458
DTC Logic ..............................................................458
Diagnosis Procedure .............................................458
U12A0 GPS ANTENNA ...................................459
Description ............................................................459
DTC Logic .............................................................459
Diagnosis Procedure .............................................459
U12A1 NAVI CONTROL UNIT .........................460
Description ............................................................460
DTC Logic .............................................................460
U12A2 TEL ANTENNA .....................................461
Description ............................................................461
DTC Logic .............................................................461
Diagnosis Procedure .............................................461
U1300 AV COMM CIRCUIT ..............................462
Description ............................................................462
POWER SUPPLY AND GROUND CIRCUIT ....464
AV CONTROL UNIT ................................................464
AV CONTROL UNIT : Diagnosis Procedure .........464
NAVI CONTROL UNIT ............................................464
NAVI CONTROL UNIT : Diagnosis Procedure .....464
DISPLAY UNIT ........................................................465
DISPLAY UNIT : Diagnosis Procedure .................465
MULTIFUNCTION SWITCH ....................................466
MULTIFUNCTION SWITCH : Diagnosis Proce-
dure .......................................................................
466
BOSE AMP. .............................................................466
BOSE AMP. : Diagnosis Procedure ......................466
CAMERA CONTROL UNIT .....................................467
CAMERA CONTROL UNIT : Diagnosis Procedure
.
467
DVD PLAYER ..........................................................468
DVD PLAYER : Diagnosis Procedure ...................468
RGB (R: RED) SIGNAL CIRCUIT (AV CON-
TROL UNIT TO DISPLAY UNIT) ......................
469
Description ............................................................469
Diagnosis Procedure .............................................469
RGB (G: GREEN) SIGNAL CIRCUIT (AV
CONTROL UNIT TO DISPLAY UNIT) ..............
470
Description ............................................................470
Diagnosis Procedure .............................................470
RGB (B: BLUE) SIGNAL CIRCUIT (AV CON-
TROL UNIT TO DISPLAY UNIT) ......................
471
Description ............................................................471
Diagnosis Procedure .............................................471
RGB SYNCHRONIZING SIGNAL CIRCUIT
(AV CONTROL UNIT TO DISPLAY UNIT) .......
472
Description ............................................................472
Diagnosis Procedure .............................................472
RGB AREA (YS) SIGNAL CIRCUIT .................473
Description ............................................................473

AV
AV-9
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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-64
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
The tint of the color bar indication is as per the following list if RGB signal error is detected.
Vehicle Signals
A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
Speaker Test
Select “SPEAKER DIAGNOSIS” to display the Speaker Diagnosis
screen. Press “START and NEXT” to generate a test tone in a
speaker. Press “Start” to generate a test tone in the next speaker.
Press “End” to stop the test tones.
NOTE:
The frequency of test tone emitted from each speaker is as follows.
Climate Control
On-board self-diagnosis is not supported. Only CONSULT-III is supported.
Refer to HAC-156, "
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : CONSULT-III Function"for
details.
Camera Cont.
Refer to AV-56, "System Description".
Error History
R (red) signal error : Light blue (Cyan) tint
G (green) signal error : Purple (Magenta) tint
B (blue) signal error : Yellow tint
JSNIA0149GB
Diagnosis item Display Vehicle status Remarks
Vehicle speedON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed by approximately
1.5 seconds. This is normal. OFF Vehicle speed = 0 km/h (0 MPH)
Parking brakeON Parking brake is applied.
OFF Parking brake is released.
LightsON Light switch ON
Block the light beam from the auto light optical sensor.
OFF Light switch OFF
IgnitionON Ignition switch ON
—
OFF Ignition switch in ACC position
ReverseONShift the selector lever to “R” posi-
tion
Changes in indication may be delayed by approximately
1.5 seconds. This is normal.
OFFShift the selector lever other than
“R” position
Squawker : 3 kHz
Front speaker : 300 Hz
Rear speaker : 1 kHz
JSNIA0150GB

AV-88
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
RGB (B: BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
RGB (B: BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
DescriptionINFOID:0000000003882743
Transmit the image displayed with AV control unit or NAVI control unit with RGB signal to the display unit.
Diagnosis ProcedureINFOID:0000000003901208
1.CHECK CONTINUITY RGB (B: BLUE) SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector and AV control unit connector.
3. Check continuity between display unit harness connector and AV control unit harness connector.
4. Check continuity between display unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK RGB (B: BLUE) SIGNAL
1. Connect display unit connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector terminal and ground using an oscilloscope.
Is inspection result normal?
YES >> Replace display unit.
NO >> Replace AV control unit.
Display unit AV control unit
Continuity
Connector Terminal Connector Terminal
M49 18M12938 Existed
Display unit
GroundContinuity
Connector Terminal
M49 18 Not existed
(+)
(−) Condition Reference value Display unit
Connector Terminal
M49 18 GroundStart Confirmation / Adjustment
mode, and then display color bar
by selecting “Color Spectrum Bar”
on DISPLAY DIAGNOSIS screen.
SKIB2237J

AV-108
< ECU DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
AV CONTROL UNIT
19
(Y)Ground Battery power supply InputIgnition
switch
OFF— Battery voltage
20
(B/W)Ground Ground —Ignition
switch
ON—0 V
33 — FM sub Input — — —
34 — AM–FM main Input — — —
35 Ground Antenna amp. ON signal OutputIgnition
switch
ACC— 12.0 V
36
(B)Ground Composite image signal OutputIgnition
switch
ONWhen camera image or
AUX image is displayed.
37
(W)GroundComposite image signal
ground—Ignition
switch
ON—0 V
38
(B)Ground RGB image signal (B: blue) OutputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
39
(R)GroundRGB image signal (G:
green)OutputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
40
(W)Ground RGB image signal (R: red) OutputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
41
(G)Ground RGB synchronizing signal OutputIgnition
switch
ON— Terminal
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB2251J
SKIB2237J
SKIB2236J
SKIB2238J
SKIB3603E

AV
DISPLAY UNIT
AV-129
< ECU DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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(B)Ground RGB area (YS) signal InputIgnition
switch
ONWhen RGB image is dis-
played.5.0 V
When camera image, DVD
image or AUX image is dis-
played.
11
(R)GroundCommunication signal
(CONT→DISP)InputIgnition
switch
ONWhen adjusting display
brightness.
13
(BR)Ground Inverter ground —Ignition
switch
ON —0 V
14
(LG)Ground Signal ground —Ignition
switch
ON—0 V
15
(B)Ground Composite image signal InputIgnition
switch
ONWhen rear view camera im-
age, DVD image or AUX
image is displayed.
17
(W)Ground RGB image signal (R: red) InputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
18
(B)Ground RGB image signal (B: blue) InputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by
selecting“Color Spectrum
Bar” on DISPLAY DIAGNO-
SIS screen. Te r m i n a l
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
PKIB4948J
PKIB5039J
SKIB2251J
SKIB2238J
SKIB2237J

AV
MULTI AV SYSTEM SYMPTOMS
AV-165
< SYMPTOM DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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RELATED TO AUDIO
RELATED TO STEERING SWITCH
Trouble diagnosis chart by symptom
RELATED TO AUXILIARY INPUT
NOTE:
Symptoms Check items Possible malfunction location / Action to take
RGB image is not shown. All RGB images are not shown.
 Composite images are not dis-
played.(camera and AUX image)  Display unit power supply and ground circuit malfunc-
tion.
Refer to AV- 8 2 , "
DISPLAY UNIT : Diagnosis Proce-
dure".
 Communication Circuit malfunction between AV control
unit and display unit.
Perform CONSULT-III self-diagnosis.
Refer to AV- 6 8 , "
CONSULT-III Function (MULTI AV)".
 All RGB images are not shown.
 Camera image is normal.
 AUX images are not displayed. Perform CONSULT-III self-diagnosis.
Refer to AV- 6 8 , "
CONSULT-III Function (MULTI AV)".
 All RGB images are not shown.
 “Multi AV” is not displayed on system
selection screen when the CONSULT-
III is initialized.AV control unit power supply and ground circuit malfunc-
tion.
Refer to AV- 8 2 , "
AV CONTROL UNIT : Diagnosis Proce-
dure".
 All RGB images are not shown.
 Composite images are normal. (cam-
era and AUX image) RGB area (YS) signal circuit malfunction.
Refer to AV- 9 0 , "
Diagnosis Procedure".
Color of RGB image is not
proper. (All RGB image)Light blue (Cyan) tint.RGB signal (R: red) circuit malfunction between AV con-
trol unit and display unit.
Refer to AV- 8 6 , "
Diagnosis Procedure".
Purple (Magenta) tint.RGB signal (G: green) circuit malfunction between AV
control unit and display unit.
Refer to AV- 8 7 , "
Diagnosis Procedure".
Screen looks yellowish.RGB signal (B: blue) circuit malfunction between AV con-
trol unit and display unit.
Refer to AV- 8 8 , "
Diagnosis Procedure".
RGB screen is rolling. All RGB screen is rolling.RGB synchronizing signal circuit malfunction between AV
control unit and display unit.
Refer to AV- 8 9 , "
Diagnosis Procedure".
Symptoms Check items Possible malfunction location / Action to take
The CD cannot be removed. —Disk eject signal circuit.
Refer to AV- 9 4 , "
Diagnosis Procedure".
Audio sound is not heard.No sound from all speakers.Perform CONSULT-III self-diagnosis.
Refer to AV- 6 8 , "
CONSULT-III Function (MULTI AV)"
Sound is not heard only from the specific
places (RH front, RH rear, LH front and
LH rear).Sound signal circuit of suspect system
AM/FM radio is not received. Other audio sounds are normal. Antenna amp. ON signal circuit.
Symptoms Probable malfunction location
None of the steering switch operations work.Steering switch signal GND circuit. Refer toAV- 1 0 5 , "
Component In-
spection".
Only specified switch cannot be operated Replace steering switch. Refer to ST-12, "
Exploded View".
Steering switch's “SOURCE”, “MENU UP”, “MENU DOWN”
switches do not work.Steering switch signal A circuit. Refer to AV- 1 0 0 , "
Diagnosis Procedure".
Steering switch's “VOL UP”, “VOL DOWN” switches do not
work.Steering switch signal B circuit. Refer to AV- 1 0 2 , "
Diagnosis Procedure".

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-205
< FUNCTION DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
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The tint of the color bar indication is as per the following list if RGB signal error is detected.
Vehicle Signals
A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
Sp ea ke r Tes t
JSNIA0688GB
R (red) signal error : Light blue (Cyan) tint
G (green) signal error : Purple (Magenta) tint
B (blue) signal error : Yellow tint
JSNIA0149GB
Diagnosis item Display Vehicle status Remarks
Vehicle speedON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed by approximately
1.5 seconds. This is normal. OFF Vehicle speed = 0 km/h (0 MPH)
Parking brakeON Parking brake is applied.
OFF Parking brake is released.
LightsON Light switch ON
Block the light beam from the auto light optical sensor.
OFF Light switch OFF
IgnitionON Ignition switch ON
—
OFF Ignition switch in ACC position
ReverseONShift the selector lever to “R” posi-
tion
Changes in indication may be delayed by approximately
1.5 seconds. This is normal.
OFFShift the selector lever other than
“R” position