Nissan Quest E52. Manual - part 175

AV

U1310 AV CONTROL UNIT

AV-579

< DTC/CIRCUIT DIAGNOSIS >

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U1310 AV CONTROL UNIT

DTC Logic

INFOID:0000000009652373

DTC

Display contents of 

CONSULT

DTC detection condition

Possible malfunction factor

U1310

CONTROL UNIT (AV)
[U1310]

An initial diagnosis error is detected in AV communication 
circuit.

Replace the AV control unit if the mal-
function occurs constantly.
Refer to 

AV-610, "Removal and In-

stallation"

.

AV-580

< DTC/CIRCUIT DIAGNOSIS >

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POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT

AV CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009652374

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:0000000009652375

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

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

M178

19

20

OFF

9.0 - 15.6 V

Battery voltage

ACC power supply

7

ACC

7.0 V - Battery 

voltage

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

M178

20

OFF

Existed

Power source

Fuse No.

Battery

35

Ignition switch ACC or ON

19

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-581

< DTC/CIRCUIT DIAGNOSIS >

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Check voltage between front display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between front display unit and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front display unit connector.

3.

Check continuity between front display unit harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

REAR DISPLAY UNIT

REAR DISPLAY UNIT : Diagnosis Procedure

INFOID:0000000009652376

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 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.

Signal name

Front display 

unit

Probe

Condition

Standard

Reference value

Terminal

Connector

(+)

(

−

)

Ignition switch

Battery power supply

M155

11

12

OFF

9.0 - 16.0 V

Battery voltage

ACC power supply

23

ACC

6.0 - 16.0 V

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

M155

12

OFF

Existed

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

AV-582

< DTC/CIRCUIT DIAGNOSIS >

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POWER SUPPLY AND GROUND CIRCUIT

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

BOSE AMP.

BOSE AMP. : Diagnosis Procedure

INFOID:0000000009652377

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.

AROUND VIEW MONITOR CONTROL UNIT

AROUND VIEW MONITOR CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009942968

1.

CHECK FUSE

Check for blown fuses.

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

R36

31

OFF

Existed

32

Power source

Fuse No.

Battery

26

27

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