Nissan GT-R. Manual - part 14

 

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Nissan GT-R. Manual - part 14

 

 

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-51

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH NAVIGATION]

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DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT

AV CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009163269

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:0000000009163270

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 display 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

M201

19

OFF

Battery voltage

ACC power supply

7

ACC

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

M201

20

OFF

Existed

Power source

Fuse No.

Battery

34

Ignition switch ACC or ON

19

AV-52

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

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.

AUDIO AMP. LH

AUDIO AMP. LH : Diagnosis Procedure

INFOID:0000000009163271

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 harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Check harness between audio amp. and fuse.

AUDIO AMP. RH

AUDIO AMP. RH : Diagnosis Procedure

INFOID:0000000009163272

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

Signal name

Connector No.

Terminal No.

Ignition switch position

Value (Approx.)

Battery power supply

M93

11

OFF

Battery voltage

ACC power supply

23

ACC

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

M93

12

OFF

Existed

Power source

Fuse No.

Battery

8

Signal name

Connector No.

Terminal No.

Ignition switch position

Voltage

(Approx.)

Battery power supply

B18

9

OFF

Battery  voltage

Power source

Fuse No.

Battery

8

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-53

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH NAVIGATION]

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Check voltage between woofer harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Check harness between audio amp. and fuse.

Signal name

Connector No.

Terminal No.

Ignition switch position

Voltage

(Approx.)

Battery power supply

B19

9

OFF

Battery voltage

AV-54

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH NAVIGATION]

RGB DIGITAL IMAGE SIGNAL CIRCUIT

RGB DIGITAL IMAGE SIGNAL CIRCUIT

Description

INFOID:0000000009163273

Transmit the image displayed with AV control unit with RGB digital image signal to the display unit.

Diagnosis Procedure

INFOID:0000000009163274

1.

CHECK CONTINUITY RGB DIGITAL IMAGE SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect display unit connector and AV control unit connector.

3.

Check continuity between display unit harness connector and AV control unit harness connector.

4.

Check continuity between display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB DIGITAL IMAGE SIGNAL

1.

Connect AV control unit connector.

2.

Turn ignition switch ON.

3.

Check signal between display unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace display unit.

NO

>> Replace AV control unit.

Display unit

AV control unit

Continuity

Connector

Terminals

Connector

Terminals

M397

27

M396

157

Existed

28

158

Display unit

Ground

Continuity

Connector

Terminals

M397

27

Not existed

28

(+)

(

)

Condition

Voltage

(Approx.)

Display unit

Connector

Terminal

M397

27

Ground

3.3 V

28

 

 

 

 

 

 

 

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