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