Nissan Teana J32. Manual - part 57

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-83

< COMPONENT DIAGNOSIS >

[BASE AUDIO AND DISPLAY SYSTEM]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

2.

CHECK GROUND CIRCUIT

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 and AV control unit harness connector.

4.

Check continuity between display unit harness connector and ground.

Is 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 inspection result normal?

YES

>> INSPECTED END.

NO

>> Replace AV control unit.

4.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect display unit connector.

3.

Check continuity between display unit harness connector and ground.

Is inspection result normal?

YES

>> INSPECTED END.

NO

>> Repair harness or connector.

MULTIFUNCTION SWITCH

MULTIFUNCTION SWITCH : Diagnosis Procedure

INFOID:0000000003901204

1.

CHECK FUSE

Check for blown fuses.

Is inspection result normal?

Signal name

Display unit

AV control unit

Continuity 

Connector No.

Terminal No.

Connector No.

Terminal No.

Ground

M49

2

M129

59

Existed

3

47

Signal name

Display unit

Ground

Continuity

Connector No.

Terminal No.

Inverter VCC

M49

2

Not existed

Signal VCC

3

Signal name

Connector No.

Terminal No.

Ignition switch position

Voltage (Approx.)

Inverter VCC

M129

59

ACC

9 V

Signal VCC

47

Signal name

Display unit

Ground

Continuity

Connector No.

Terminal No.

Ground

M49

1

Existed

Power source

Fuse No.

Ignition switch ACC or ON

19

AV-84

< COMPONENT DIAGNOSIS >

[BASE AUDIO AND DISPLAY SYSTEM]

POWER SUPPLY AND GROUND CIRCUIT

YES

>> GO TO 2.

NO

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

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between multifunction switch harness connector and ground.

Is 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 inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

CAMERA CONTROL UNIT

CAMERA CONTROL UNIT : Diagnosis Procedure

INFOID:0000000003901205

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 camera control unit harness connector and ground.

Is inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between camera control unit and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect camera control unit connector.

3.

Check continuity between camera control unit harness connector and ground.

Is inspection result normal?

Signal name

Connector No.

Terminal No.

Ignition switch position

Voltage (Approx.)

ACC power supply

M125

3

ACC

Battery voltage

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

M125

1

OFF

Existed

Power source

Fuse No.

Battery

31

Ignition switch ACC

19

Signal name

Connector No.

Terminal No.

Ignition switch position

Voltage (Approx.)

Battery power supply

B251

32

OFF

Battery voltage

ACC power supply

30

ACC

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

B251

31

OFF

Existed

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-85

< COMPONENT DIAGNOSIS >

[BASE AUDIO AND DISPLAY SYSTEM]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

YES

>> INSPECTION END

NO

>> Repair harness or connector.

AV-86

< COMPONENT DIAGNOSIS >

[BASE AUDIO AND DISPLAY SYSTEM]

RGB (R: RED) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)

RGB (R: RED) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)

Description

INFOID:0000000003882739

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

Diagnosis Procedure

INFOID:0000000003901206

1.

CHECK CONTINUITY RGB (R: RED) 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 inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB (R: RED) SIGNAL

1.

Connect display unit connector and AV control unit connector.

2.

Turn ignition switch ON.

3.

Check signal between display unit harness connector terminal and ground using an oscilloscope.

Is inspection result normal?

YES

>> Replace display unit.

NO

>> Replace AV control unit.

Display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M49

17

M129

40

Existed

Display unit

Ground

Continuity

Connector

Terminal

M49

17

Not existed

(+)

(

−

)

Condition

Reference value

Display unit

Connector

Terminal

M49

17

Ground

Start Confirmation / Adjustment 
mode, and then display color bar 
by selecting “Color Spectrum Bar” 
on DISPLAY DIAGNOSIS screen.

SKIB2238J