Nissan GT-R. Manual — part 16
AV
CAMERA IMAGE SIGNAL CIRCUIT
AV-59
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
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CAMERA IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009163281
• The AV control unit supplies power to the rear view camera when receiving a reverse signal.
• The rear view camera transmits camera images to the display unit when power is supplied from the AV con-
trol unit.
Diagnosis Procedure
INFOID:0000000009163282
1.
CHECK CONTINUITY CAMERA POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and rear view camera connector.
3.
Check continuity between AV control unit harness connector and rear view camera harness connector.
4.
Check continuity between AV control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VOLTAGE CAMERA POWER SUPPLY
1.
Connect AV control unit connector and rear view camera connector.
2.
Turn ignition switch ON.
3.
Shift the selector lever to “R”.
4.
Check voltage between AV control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Replace AV control unit. Refer to
AV-77, "Removal and Installation"
.
3.
CHECK CONTINUITY CAMERA IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and rear view camera connector.
3.
Check continuity between display unit harness connector and rear view camera harness connector.
4.
Check continuity between display unit harness connector and ground.
AV control unit
Rear view camera
Continuity
Connector
Terminal
Connector
Terminal
M202
22
B156
1
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M202
22
Not existed
(+)
(
−
)
Condition
Voltage
(Approx.)
AV control unit
Connector
Terminal
M202
22
Ground
Shift position is “R”.
6.0 V
Display unit
Rear view camera
Continuity
Connector
Terminal
Connector
Terminal
M93
8
B156
3
Existed
AV-60
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
CAMERA IMAGE SIGNAL CIRCUIT
Is inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK CAMERA IMAGE SIGNAL
1.
Connect display unit connector and rear view camera connector.
2.
Turn ignition switch ON.
3.
Shift the selector lever to “R”.
4.
Check signal between display unit harness connector and ground.
Is inspection result normal?
YES
>> Replace display unit. Refer to
AV-79, "Removal and Installation"
NO
>> Replace rear view camera. Refer to
AV-95, "Removal and Installation"
Display unit
Ground
Continuity
Connector
Terminal
M93
8
Not existed
(+)
(
−
)
Condition
Reference value
Display unit
Connector
Terminal
M93
8
Ground
At rear view camera im-
age is displayed.
SKIB2251J
AV
STEERING SWITCH SIGNAL A CIRCUIT
AV-61
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
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STEERING SWITCH SIGNAL A CIRCUIT
Description
INFOID:0000000009163283
Transmits the steering switch signal to AV control unit.
Diagnosis Procedure
INFOID:0000000009163284
1.
CHECK STEERING SWITCH SIGNAL A CIRCUIT
1.
Disconnect AV control unit connector and spiral cable connector.
2.
Check continuity between AV control unit harness connector and spiral cable harness connector.
3.
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 SPIRAL CABLE
Check spiral cable.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace spiral cable.
3.
CHECK AV CONTROL UNIT VOLTAGE
1.
Connect AV control unit connector and spiral cable connector.
2.
Turn ignition switch ON.
3.
Check voltage between AV control unit harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace AV control unit.
4.
CHECK STEERING SWITCH
1.
Turn ignition switch OFF.
2.
Check steering switch. Refer to
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace steering switch.
AV control unit
Spiral cable
Continuity
Connector
Terminal
Connector
Terminal
M201
6
M36
24
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M201
6
Not existed
(+)
(
−
)
Voltage
(Approx.)
AV control unit
AV control unit
Connector
Terminal
Connector
Terminal
M201
6
M201
15
5.0 V
AV-62
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
STEERING SWITCH SIGNAL A CIRCUIT
Component Inspection
INFOID:0000000009163285
Measure the resistance between the steering switch connector ter-
minals 14 to 17 and 15 to 17.
Standard
JPNIA1238GB
Steering switch
Condition
Resistance
Ω
Connector
Terminals
M303
14
17
START / STOP switch ON
1982 – 2063
switch ON
708 – 737
SEEK DOWN switch ON
314 – 327
SEEK UP switch ON
118 – 123
SOURCE switch ON
1
Ω
or less
15
MRK switch ON
708 – 737
switch ON
314 – 327
VOL UP switch ON
118 – 123
VOL DOWN switch ON
1
Ω
or less
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