Infiniti G37 Coupe. Manual — part 170
![](/vehicles/zatt/keash/veak/oleril.png)
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-433
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure
INFOID:0000000001558851
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:0000000001558852
1.
CHECK FUSE
Check for blown fuses.
Power source
Fuse No.
Battery
34
Ignition switch ACC or ON
19
Ignition switch ON or START
3
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
M80
19
OFF
12 V
M87
22
24
ACC power supply
M80
7
ACC
12 V
M87
25
Ignition signal
M87
35
ON
12 V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M87
21
OFF
Existed
23
Power source
Fuse No.
Battery
34
Ignition switch ACC or ON
19
![](/vehicles/zatt/keash/veak/esoukin.png)
AV-434
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
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.
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.
MULTIFUNCTION SWITCH
MULTIFUNCTION SWITCH : Diagnosis Procedure
INFOID:0000000001558853
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 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.
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
M75
2
OFF
12 V
ACC power supply
M75
3
ACC
12 V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M75
1
OFF
Existed
13
Power source
Fuse No.
Ignition switch ACC or ON
19
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
![](/vehicles/zatt/keash/veak/everb.png)
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-435
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
CAMERA CONTROL UNIT
CAMERA CONTROL UNIT : Diagnosis Procedure
INFOID:0000000001558854
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 camera control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between camera control unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect camera control unit connector.
3.
Check continuity between camera control 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:0000000001558855
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.
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
B241
32
OFF
12 V
ACC power supply
B241
30
ACC
12 V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
B241
31
OFF
Existed
Power source
Fuse No.
Battery
5, 8
![](/vehicles/zatt/keash/veak/fiod.png)
AV-436
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
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.
WOOFER AMP.
WOOFER AMP. : Diagnosis Procedure
INFOID:0000000001678960
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
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
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
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