Nissan GT-R. Manual — part 37
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-143
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009163404
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connectors and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between AV control unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connectors.
3.
Check continuity between AV control unit harness connectors and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
DISPLAY UNIT
DISPLAY UNIT : Diagnosis Procedure
INFOID:0000000009163405
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between display unit harness connector and ground.
Power source
Fuse No.
Battery
34
Ignition switch ACC or ON
19
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
M201
19
OFF
Battery voltage
ACC power supply
7
ACC
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M201
20
OFF
Existed
Power source
Fuse No.
Battery
34
Ignition switch ACC or ON
19
AV-144
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between Display unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector.
3.
Check continuity between display unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
BOSE AMP.
BOSE AMP. : Diagnosis Procedure
INFOID:0000000009163406
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between BOSE amp. and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BOSE amp. connector.
3.
Check continuity between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
M93
11
OFF
Battery voltage
ACC power supply
23
ACC
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M93
12
OFF
Existed
Power source
Fuse No.
Battery
8
Signal name
Connector No.
Terminal No.
Ignition switch position
Voltage
(Approx.)
Battery power supply
B16
11
OFF
Battery voltage
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
B16
12
OFF
Existed
AV
RGB DIGITAL IMAGE SIGNAL CIRCUIT
AV-145
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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RGB DIGITAL IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009163407
Transmit the image displayed with AV control unit with RGB digital image signal to the display unit.
Diagnosis Procedure
INFOID:0000000009163408
1.
CHECK CONTINUITY RGB DIGITAL IMAGE 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 the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK RGB DIGITAL IMAGE SIGNAL
1.
Connect AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace display unit.
NO
>> Replace AV control unit.
Display unit
AV control unit
Continuity
Connector
Terminals
Connector
Terminals
M397
27
M396
157
Existed
28
158
Display unit
Ground
Continuity
Connector
Terminals
M397
27
Not existed
28
(+)
(
−
)
Condition
Voltage
(Approx.)
Display unit
Connector
Terminal
M397
27
Ground
—
3.3 V
28
AV-146
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
COMPOSITE IMAGE SIGNAL CIRCUIT
COMPOSITE IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009163409
AV control unit transmits the playback DVD image signal to the display unit.
Diagnosis Procedure
INFOID:0000000009163410
1.
CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and display unit connector.
3.
Check continuity between AV control unit harness connector and display unit harness connector.
4.
Check continuity between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK COMPOSITE IMAGE SIGNAL
1.
Connect AV control unit connector and display unit connector.
2.
Turn ignition switch ON.
3.
Check signal between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace display unit.
NO
>> Replace AV control unit.
AV control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
M203
68
M93
18
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M203
68
Not existed
(+)
(
−
)
Condition
Reference value
AV control unit
Connector
Terminal
M203
68
Ground
At DVD image is displayed.
SKIB2251J
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