Nissan Quest E52. Manual - part 122

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-367

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT

AV CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009652170

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.

FRONT DISPLAY UNIT

FRONT DISPLAY UNIT : Diagnosis Procedure

INFOID:0000000009652171

1.

CHECK POWER SUPPLY CIRCUIT (DISPLAY SIDE)

Check voltage between display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

Power source

Fuse No.

Battery

35

Ignition switch ACC or ON

19

Signal name

AV control unit

Probe

Condition

Standard

Reference value

Terminal

Connector

(+)

(

−

)

Ignition switch

Battery power supply

M171

19

20

OFF

9.0 - 15.6 V

Battery voltage

ACC power supply

7

ACC

9.0 - 16.0 V

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

M171

20

OFF

Existed

Signal name

Front display 

unit

Probe

Condition

Standard

Voltage

(Approx.)

Terminal

Connector

(+)

(

−

)

Ignition switch

Inverter VCC

M156

2

13

OFF

8.0 - 9.5 V

8.8 V

Signal VCC

3

14

ACC

AV-368

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

2.

CHECK POWER SUPPLY CIRCUIT (CONTINUITY)

1.

Turn ignition switch OFF.

2.

Disconnect the harness connector between front display unit and AV control unit.

3.

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

4.

Check continuity between front display unit harness connector 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

>> Replace AV control unit. Refer to 

AV-404, "Removal and Installation"

.

4.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front display unit connector.

3.

Check continuity between front display unit harness connectors and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

REAR DISPLAY UNIT

REAR DISPLAY UNIT : Diagnosis Procedure

INFOID:0000000009652172

1.

CHECK FUSE

Check for blown fuses.

Front display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M156

2

M172

48

Existed

3

36

Front display unit

Ground

Continuity

Connector

Terminal

M156

2

Not existed

3

Probe

Standard

Voltage

(Approx.)

(+)

(

−

)

AV control unit

Connector

Terminal

Connector

Terminal

M172

48

M172

49

8.0 - 9.5 V

8.8 V

36

37

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

M156

1

OFF

Existed

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-369

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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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 rear display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between rear display unit and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear display unit connector.

3.

Check continuity between rear display 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:0000000009652173

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

35

Ignition switch ACC or ON

19

Signal name

Rear display unit

Probe

Condition

Standard

Reference value

Terminal

Connector

(+)

(

−

)

Ignition switch

Battery power supply

R36

29

31
32

OFF

9.0 - 16.0 V

Battery voltage

30

ACC power supply

28

ACC

7.6 V - Battery 

voltage

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

R36

31

OFF

Existed

32

Power source

Fuse No.

Battery

26

27, 28

AV-370

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT 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.

SATELLITE RADIO TUNER

SATELLITE RADIO TUNER : Diagnosis Procedure

INFOID:0000000009652174

1.

CHECK FUSES

Check that the following fuses of the satellite radio tuner are not blown.

Is inspection result OK?

YES

>> GO TO 2.

NO

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between the satellite radio tuner and ground.

Is inspection result OK?

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 connector.

3.

Check continuity between satellite radio tuner harness connector and ground.

Signal name

BOSE amp.

Probe

Condition

Standard

Reference value

Terminal

Connector

(+)

(

−

)

Ignition switch

Battery power supply

B251

10

7

12

OFF

9.0 - 16.0 V

Battery voltage

11

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

B251

7

OFF

Existed

12

Power source

Fuse No.

Battery

35

Ignition switch ACC or ON

19

Signal name

Satellite radio 

tuner

Probe

Condition

Standard

Reference value

Terminal

Connector

(+)

(

−

)

Ignition switch

Battery power supply

B49

12

15

OFF

10.8 - 15.6 V

Battery voltage

ACC power supply

16

ACC

7.0 - 16.0 V