Infiniti QX56 (Z62). Manual - part 77

AV-162

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

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.

HEADREST DISPLAY UNIT

HEADREST DISPLAY UNIT : Diagnosis Procedure

INFOID:0000000006216321

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 headrest display unit harness connector and ground.

• *1: Headrest display unit LH
• *2: Headrest display unit RH

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between headrest display unit and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect headrest display unit connector.

3.

Check continuity between headrest display unit harness connector and ground.

• *1: Headrest display unit LH
• *2: Headrest display unit RH

Signal name

Connector

Terminal

Ignition switch position

Value (Approx.)

Battery power supply

M215

11

OFF

Battery voltage

ACC power supply

M215

23

ACC

Battery voltage

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

M215

12

OFF

Existed

Power source

Fuse No.

Battery

35

Signal name

Connector

Terminal

Ignition switch position

Value (Approx.)

Battery power supply

B554

*1

B574

*2

2

OFF

Battery voltage

4

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

B554

*1

B574

*2

1

OFF

Existed

3

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-163

< DTC/CIRCUIT DIAGNOSIS >

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Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

VIDEO DISTRIBUTOR

VIDEO DISTRIBUTOR : Diagnosis Procedure

INFOID:0000000006216322

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 video distributor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between video distributor and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect video distributor connector.

3.

Check continuity between video distributor harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

BOSE AMP.

BOSE AMP. : Diagnosis Procedure

INFOID:0000000006216323

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

Connector

Terminal

Ignition switch position

Value (Approx.)

Battery power supply

M217

2

OFF

Battery voltage

ACC power supply

M217

4

ACC

Battery voltage

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

M217

1

OFF

Existed

Ground

M217

3

OFF

Existed

Power source

Fuse No.

Battery

5

Battery

8

AV-164

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND 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:0000000006216324

1.

CHECK FUSE

Check for blown fuses.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK POWER SUPPLY CIRCUITS

Check voltage between around view monitor control unit harness connector and ground.

Is inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between around view monitor control unit and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect around view monitor control unit connector.

3.

Check continuity between around view monitor control unit harness connector and ground.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Signal name

Connector

Terminal

Ignition switch position

Value (Approx.)

Battery power supply

B229

10

OFF

Battery voltage

Battery power supply

B229

11

OFF

Battery voltage

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

B229

12

OFF

Existed

Power source

Fuse No.

Battery

9

Ignition switch ACC

19

Signal name

Connector

Terminal

Ignition switch position

Value (Approx.)

Battery power supply

M48

2

OFF

Battery  voltage

ACC power supply

M48

4

ACC

Battery voltage

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

M48

1

OFF

Existed

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-165

< DTC/CIRCUIT DIAGNOSIS >

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SONAR CONTROL UNIT (WITH AROUND VIEW MONITOR)

SONAR CONTROL UNIT (WITH AROUND VIEW MONITOR) : Diagnosis Procedure

INFOID:0000000006216325

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

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace sonar control unit power supply harness.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector.

3.

Check continuity between sonar control unit harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace sonar control unit ground harness.

Power source

Fuse No.

Ignition switch ACC or ON

19

Signal name

Connector

Terminal

Ignition switch position

Value (Approx.)

Battery power supply

M47

13

ACC

Battery voltage

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

M47

24

OFF

Existed