Nissan Murano Z51. Manual - part 215

AV

RGB SYNCHRONIZING SIGNAL CIRCUIT

AV-639

< DTC/CIRCUIT DIAGNOSIS >

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RGB SYNCHRONIZING SIGNAL CIRCUIT

Description

INFOID:0000000005528770

Transmit the RGB synchronizing signal to the front display unit so as to synchronize the RGB image displayed
with AV control unit.

Diagnosis Procedure

INFOID:0000000005528771

1.

CHECK CONTINUITY RGB SYNCHRONIZING SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front display unit connector and AV control unit connector.

3.

Check continuity between front display unit harness connector and AV control unit harness connector.

4.

Check continuity between front display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB SYNCHRONIZING 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

>> Replace front display unit.

NO

>> Replace AV control unit.

Front display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M49

19

M146

65

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

19

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Connector

Terminal

M49

19

Ground

—

JPNIA0461GB

AV-640

< DTC/CIRCUIT DIAGNOSIS >

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RGB AREA (YS) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY 

UNIT)

RGB AREA (YS) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DIS-
PLAY UNIT)

Description

INFOID:0000000005528772

Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to front dis-
play unit.

Diagnosis Procedure

INFOID:0000000005528773

1.

CHECK CONTINUITY RGB AREA (YS) SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front display unit connector and AV control unit connector.

3.

Check continuity between front display unit harness connector and AV control unit harness connector.

4.

Check continuity between front display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB AREA (YS) 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

>> Replace front display unit.

NO

>> Replace AV control unit.

Front display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M49

9

M146

67

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

9

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Connector

Terminal

M49

9

Ground

When RGB image is displayed.

Approx. 5.0 V

When AUX image is displayed.

PKIB4948J

AV

HP SIGNAL CIRCUIT (FRONT DISPLAY UNIT TO AV CONTROL UNIT)

AV-641

< DTC/CIRCUIT DIAGNOSIS >

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HP SIGNAL CIRCUIT (FRONT DISPLAY UNIT TO AV CONTROL UNIT)

Description

INFOID:0000000005528774

In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizon-
tal synchronizing (HP) signal from front display unit to AV control unit so as to synchronize the RGB images
displayed with AV control unit such as the image quality adjusting menu, etc.

Diagnosis Procedure

INFOID:0000000005528775

1.

CHECK CONTINUITY HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front display unit connector and AV control unit connector.

3.

Check continuity between front display unit harness connector and AV control unit harness connector.

4.

Check continuity between front display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK HORIZONTAL SYNCHRONIZING (HP) 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

>> Replace AV control unit.

NO

>> Replace front display unit.

Front display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M49

8

M146

68

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

8

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Connector

Terminal

M49

8

Ground

—

SKIB3603E

AV-642

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VP SIGNAL CIRCUIT (FRONT DISPLAY UNIT TO AV CONTROL UNIT)

VP SIGNAL CIRCUIT (FRONT DISPLAY UNIT TO AV CONTROL UNIT)

Description

INFOID:0000000005528776

In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizon-
tal synchronizing (HP) signal from front display unit to AV control unit so as to synchronize the RGB images
displayed with AV control unit such as the image quality adjusting menu, etc.

Diagnosis Procedure

INFOID:0000000005528777

1.

CHECK CONTINUITY VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front display unit connector and AV control unit connector.

3.

Check continuity between front display unit harness connector and AV control unit harness connector.

4.

Check continuity between front display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK VERTICAL SYNCHRONIZING (VP) 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

>> Replace AV control unit.

NO

>> Replace front display unit.

Front display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M49

20

M146

69

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

20

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Connector

Terminal

M49

20

Ground

—

SKIB3598E