Infiniti G37 Coupe. Manual — part 102
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-161
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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2.
CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
1.
Turn ignition switch OFF.
2.
Disconnect the harness connector between display unit and AV control unit.
3.
Check continuity between display unit harness connector M71 and AV control unit harness connector
M83.
4.
Check continuity between display unit harness connector M71 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK POWER SUPPLY CIRCUIT (AV CONTROL UNIT SIDE)
1.
Connect the AV control unit harness connector.
2.
Turn ignition switch ACC.
3.
Check voltage between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replacement of AV control unit.
4.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector.
3.
Check continuity between display unit harness connectors and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
MULTIFUNCTION SWITCH
MULTIFUNCTION SWITCH : Diagnosis Procedure
INFOID:0000000001559287
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.
Signal name
Display unit (M71)
AV control unit (M83)
Continuity
Inverter VCC
2
59
Existed
Signal VCC
3
47
Existed
Signal name
Display unit (M71)
—
Continuity
Inverter VCC
2
Ground
Not existed
Signal VCC
3
Ground
Not existed
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Inverter VCC
M83
59
ACC
9 V
Signal VCC
47
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M71
1
OFF
Existed
Power source
Fuse No.
Ignition switch ACC or ON
19
AV-162
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between multifunction switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between multifunction switch and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect multifunction switch connector.
3.
Check continuity between multifunction switch harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
BOSE AMP.
BOSE AMP. : Diagnosis Procedure
INFOID:0000000001559289
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.)
ACC power supply
M72
3
ACC
12 V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M72
1
OFF
Existed
Power source
Fuse No.
Battery
5, 8
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
B42
10
OFF
12 V
11
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
B42
7
OFF
Existed
12
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-163
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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WOOFER AMP.
WOOFER AMP. : Diagnosis Procedure
INFOID:0000000001678966
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 woofer amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between woofer amp. and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect woofer amp. connector.
3.
Check continuity between woofer amp. harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
iPod ADAPTER
iPod ADAPTER : Diagnosis Procedure
INFOID:0000000001678969
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 iPod adapter harness connector and ground.
Is the inspection result normal?
Power source
Fuse No.
Battery
34
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
B43
7
OFF
12 V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
B43
10
OFF
Existed
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
M111
5
OFF
12 V
ACC power supply
M111
3
ACC
12 V
AV-164
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
YES
>> INSPECTION END
NO
>> Check harness between iPod adapter and fuse.
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Diagnosis Procedure
INFOID:0000000001559290
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 satellite radio tuner harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between satellite radio tuner and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect satellite radio tuner.
3.
Check continuity between satellite radio tuner harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
TEL ADAPTER UNIT
TEL ADAPTER UNIT : Diagnosis Procedure
INFOID:0000000001559021
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 TEL adapter 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
B236
12
OFF
12 V
ACC power supply
B236
16
ACC
12 V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
B236
15
OFF
Existed
Power source
Fuse No.
Battery
34
Ignition switch ACC or ON
19
Ignition switch ON or START
3
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