Nissan Murano. Manual - part 88

AV-130

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH COLOR DISPLAY]

CAMERA IMAGE SIGNAL CIRCUIT

CAMERA IMAGE SIGNAL CIRCUIT

Description

INFOID:0000000009721654

• AV control unit outputs camera power supply to rear view camera and inputs camera image signal from rear

view camera when the reverse signal is input.

• AV control unit transmits the camera image signal to the display unit.

Diagnosis Procedure

INFOID:0000000009721655

1.

CHECK CONTINUITY CAMERA POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connector and rear view camera connector.

3.

Check continuity between AV control unit harness connector and rear view camera harness connector.

4.

Check continuity between AV control unit harness connector and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK VOLTAGE CAMERA POWER SUPPLY

1.

Connect AV control unit connector and rear view camera connector.

2.

Turn ignition switch ON.

3.

Shift the selector lever to “R”.

4.

Check voltage between AV control unit harness connector and ground.

Is inspection result normal?

YES

>> GO TO 3.

NO

>> Replace AV control unit. Refer to 

AV-149, "Exploded View"

.

3.

CHECK CONTINUITY CAMERA IMAGE SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connector and rear view camera connector.

3.

Check continuity between AV control unit harness connector and rear view camera harness connector.

4.

Check continuity between AV control unit harness connector and ground.

AV control unit

Rear view camera

Continuity

Connector

Terminal

Connector

Terminal

M173

73

D192

1

Existed

AV control unit

Ground

Continuity

Connector

Terminal

M173

73

Not existed

(+)

(

−

)

Condition

Voltage

(Approx.)

AV control unit

Connector

Terminal

M173

73

Ground

Selector lever is in “R”.

6.0 V

AV control unit

Rear view camera

Continuity

Connector

Terminal

Connector

Terminal

M173

62

D192

3

Existed

AV

CAMERA IMAGE SIGNAL CIRCUIT

AV-131

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH COLOR DISPLAY]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK CAMERA IMAGE SIGNAL

1.

Connect AV control unit connector and rear view camera connector.

2.

Turn ignition switch ON.

3.

Shift the selector lever to “R”.

4.

Check signal between AV control unit harness connector and ground.

Is inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-149, "Exploded View"

.

NO

>> Replace rear view camera. Refer to 

AV-159, "Exploded View"

.

AV control unit

Ground

Continuity

Connector

Terminal

M173

62

Not existed

(+)

(

−

)

Condition

Reference value

AV control unit

Connector

Terminal

M173

62

Ground

At camera image is dis-
played.

SKIB2251J

AV-132

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH COLOR DISPLAY]

DISK EJECT SIGNAL CIRCUIT

DISK EJECT SIGNAL CIRCUIT

Description

INFOID:0000000009721656

The eject signal is output to AV control unit when the eject switch of multifunction switch is pressed.

Diagnosis Procedure

INFOID:0000000009721657

1.

CHECK CONTINUITY DISK EJECT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect multifunction switch connector and AV control unit connector.

3.

Check continuity between multifunction switch harness connector and AV control unit harness connector.

4.

Check continuity between multifunction switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1.

Connect multifunction switch connector and AV control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace preset switch. Refer to 

AV-155, "Exploded View"

.

NO

>> Replace AV control unit. Refer to 

AV-149, "Exploded View"

.

Multifunction switch

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M125

14

M174

96

Existed

Multifunction switch

Ground

Continuity

Connector

Terminal

M125

14

Not existed

(+)

(

−

)

Condition

Voltage

(Approx.)

AV control unit

Connector

Terminal

M174

96

Ground

Pressing the eject switch

0 V

Except for above

5.0 V

AV

MICROPHONE SIGNAL CIRCUIT

AV-133

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH COLOR DISPLAY]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

MICROPHONE SIGNAL CIRCUIT

Description

INFOID:0000000009721658

Supply power from TEL adapter unit to microphone. The microphone transmits the sound/voice to the TEL
adapter unit.

Diagnosis Procedure

INFOID:0000000009721659

1.

CHECK CONTINUITY BETWEEN TEL ADAPTER UNIT AND MICROPHONE CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect TEL adapter unit connector and microphone connector.

3.

Check continuity between TEL adapter unit harness connector and microphone harness connector.

4.

Check continuity between TEL adapter unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK VOLTAGE MICROPHONE VCC

1.

Connect TEL adapter unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between TEL adapter unit harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace TEL adapter unit. Refer to 

AV-162, "Removal and Installation"

.

3.

CHECK MICROPHONE SIGNAL 

1.

Connect microphone connector.

2.

Check signal between TEL adapter unit harness connector.

TEL adapter unit

Microphone

Continuity

Connector

Terminals

Connector

Terminals

B39

7

R20

1

Existed

8

2

29

4

TEL adapter unit

Ground

Continuity

Connector

Terminals

B39

7

Not existed

29

(+)

(

−

)

Voltage

(Approx.)

TEL adapter unit

Connector

Terminal

Connector

Terminal

B39

29

B39

8

5.0  V