Nissan Murano Z51. Manual - part 80

 

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Nissan Murano Z51. Manual - part 80

 

 

AV

U1243 DISPLAY UNIT

AV-99

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK COMMUNICATION SIGNAL

1.

Connect front display unit connector and AV control unit connector.

2.

Turn ignition switch ON.

3.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace AV control unit.

4.

CHECK COMMUNICATION SIGNAL

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace front display unit.

(+)

(

)

Condition

Signal

Front display unit

Connector

Terminal

M49

11

Ground

When adjusting display bright 
ness.

PKIB5039J

(+)

(

)

Condition

Signal

Front display unit

Connector

Terminal

M49

22

Ground

When adjusting display bright 
ness.

PKIB5039J

AV-100

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

U1247 REAR DISP CONN

U1247 REAR DISP CONN

Description

INFOID:0000000005528495

DTC Logic

INFOID:0000000005528496

Diagnosis Procedure

INFOID:0000000005528497

1.

CHECK REAR DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT

Check rear display unit power supply and ground circuits. Refer to 

AV-108, "REAR DISPLAY UNIT : Diagnosis

Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair malfunctioning parts.

2.

CHECK CONTINUITY SERIAL COMMUNICATION CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear display unit connector and video distributor connector.

3.

Check continuity between rear display unit harness connector and video distributor harness connector.

4.

Check continuity between rear display unit harness connector and ground.

Part name

Description

REAR DISPLAY UNIT

• The rear display unit has functions of remote control receiver and headphone 

amp.

• Transmits the headphone sound signal when receiving headphone ON signal 

from the video distributor.

• Headphone sound signal is input from DVD player via hard wires and outputs 

the signal to headphones via infrared wireless communication.

• Receives the operation signal from the remote controller and transmits the sig-

nal to the video distributor via serial communication.

• Rear display image is controlled by the serial communication from video dis-

tributor.

• RGB image signal is input from video distributor (RGB image and RGB area). 

Composite image signal (DVD and auxiliary images) is input from the video 
distributor.

• Synchronize signal (HP, VP) is output to video distributor.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Possible causes

U1247

REAR DISP CONN
[U1247]

When either one of the following items are detected:
• rear display unit power supply and ground circuits are 

malfunctioning.

• serial communication circuits between video distributor 

and rear display unit are malfunctioning.

• serial communication signal between video distributor 

and rear display unit is malfunctioning.

• Rear display unit power supply and 

ground circuits.

• Serial communication circuits be-

tween video distributor and rear 
display unit.

Rear display unit

Video distributor

Continuity

Connector

Terminals

Connector

Terminals

R152

9

M257

39

Existed

10

40

AV

U1247 REAR DISP CONN

AV-101

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK SERIAL COMMUNICATION SIGNAL

1.

Connect rear display unit connector and video distributor connector.

2.

Turn ignition switch ON.

3.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace rear display unit.

4.

CHECK SERIAL COMMUNICATION SIGNAL

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace video distributor.

Rear display unit

Ground

Continuity

Connector

Terminals

R152

9

Not existed

10

(+)

(

)

Condition

Signal

Front display unit

Connector

Terminal

R152

9

Ground

Rear seat remote controller opera-
tion.

PKIB5039J

(+)

(

)

Condition

Signal

Front display unit

Connector

Terminal

R152

10

Ground

Rear seat remote controller opera-
tion.

PKIB5039J

AV-102

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

U1250 CAMERA CONTROL UNIT

U1250 CAMERA CONTROL UNIT

Description

INFOID:0000000005528498

DTC Logic

INFOID:0000000005528499

Diagnosis Procedure

INFOID:0000000005528500

1.

CHECK CAMERA-CONNECTION RECOGNITION SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connector and camera control unit connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK AV CONTROL UNIT VOLTAGE

1.

Connect 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 camera control unit.

NO

>> Replace AV control unit.

Part name

Description

CAMERA CONTROL UNIT

• Camera image signal is input from rear view camera. Camera image signal 

output to AV control unit.

• Power (camera ON signal) is transmitted to rear view camera.
• AV control unit recognizes the presence of camera system with camera con-

nection recognition signal.

• Camera control unit is connected via AV communication.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Possible causes

U1250

CAMERA CONT. CONN
[U1250]

Malfunction is detected in camera-connection recognition 
signal circuit.

Camera-connection recognition sig-
nal circuit.

AV control unit

Camera control unit

Continuity

Connector

Terminal

Connector

Terminal

M130

68

B60

14

Existed

(+)

(

)

Voltage

(Approx.)

AV control unit

Connector

Terminal

M130

68

Ground

5.0 V

 

 

 

 

 

 

 

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