Nissan GT-R. Manual — part 17
AV
STEERING SWITCH SIGNAL B CIRCUIT
AV-63
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
C
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B
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STEERING SWITCH SIGNAL B CIRCUIT
Description
INFOID:0000000009163286
Transmits the steering switch signal to AV control unit.
Diagnosis Procedure
INFOID:0000000009163287
1.
CHECK STEERING SWITCH SIGNAL B 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
16
M36
31
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M201
16
Not existed
(+)
(
−
)
Voltage
(Approx.)
AV control unit
AV control unit
Connector
Terminal
Connector
Terminal
M201
16
M201
15
5.0 V
AV-64
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
STEERING SWITCH SIGNAL B CIRCUIT
Component Inspection
INFOID:0000000009163288
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
AV
STEERING SWITCH GROUND CIRCUIT
AV-65
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
STEERING SWITCH GROUND CIRCUIT
Description
INFOID:0000000009163289
Transmits the steering switch signal to AV control unit.
Diagnosis Procedure
INFOID:0000000009163290
1.
CHECK STEERING SWITCH SIGNAL GND 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.
Connect AV control unit connector.
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 GROUND CIRCUIT
1.
Connect AV control unit connector.
2.
Check continuity between AV control unit harness connector and ground.
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
15
M36
33
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M201
15
Existed
AV-66
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
STEERING SWITCH GROUND CIRCUIT
Component Inspection
INFOID:0000000009163291
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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