Nissan Murano Z51 (2008 year). Manual - part 21

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-109

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between iPod adapter harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Check harness between iPod adapter and fuse.

SATELLITE RADIO TUNER

SATELLITE RADIO TUNER : Diagnosis Procedure

INFOID:0000000003356788

1.

CHECK FUSE

Check for blown fuses.

Is the inspection result normal?

YES

>> GO TO 2.

NO

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

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between satellite radio tuner harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between satellite radio tuner and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect satellite radio tuner.

3.

Check continuity between satellite radio tuner harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

TEL ADAPTER UNIT

TEL ADAPTER UNIT : Diagnosis Procedure

INFOID:0000000003356789

1.

CHECK FUSE

Check for blown fuses.

Signal name

Connector No.

Terminal No.

Ignition switch position

Value (Approx.)

Battery power supply

M148

5

OFF

Battery voltage

ACC power supply

3

ACC

Power source

Fuse No.

Battery

35

Ignition switch ACC or ON

19

Signal name

Connector No.

Terminal No.

Ignition switch position

Value (Approx.)

Battery power supply

B48

12

OFF

Battery voltage

ACC power supply

16

ACC

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

B48

15

OFF

Existed

Revision: 2008 October

2009 Murano

AV-110

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

Is the inspection result normal?

YES

>> GO TO 2.

NO

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

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between TEL adapter unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between TEL adapter unit and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect TEL adapter unit connector.

3.

Check continuity between TEL adapter unit harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Power source

Fuse No.

Battery

35

Ignition switch ACC or ON

19

Ignition switch ON or START 

3

Signal name

Connector No.

Terminal No.

Ignition switch position

Value (Approx.)

Battery power supply

B39

1

OFF

Battery voltage

ACC power supply

2

ACC

Ignition signal

3

ON

Signal name

Connector No.

Terminal No.

Ignition switch position

Continuity 

Ground

B39

4, 14, 20, 24

OFF

Existed

Revision: 2008 October

2009 Murano

AV

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

UNIT)

AV-111

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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

Description

INFOID:0000000003509176

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

Diagnosis Procedure

INFOID:0000000003509177

1.

CHECK CONTINUITY RGB (R: RED) 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 (R: RED) 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

17

M129

40

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

17

Not existed

(+)

(

−

)

Condition

Signal

Front 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

Revision: 2008 October

2009 Murano

AV-112

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

RGB (G: GREEN) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY 

UNIT)

RGB (G: GREEN) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DIS-
PLAY UNIT)

Description

INFOID:0000000003509180

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

Diagnosis Procedure

INFOID:0000000003509181

1.

CHECK CONTINUITY RGB (G: GREEN) 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 (G: GREEN) 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

6

M129

39

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

6

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Connector

Terminal

M49

6

Ground

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

SKIB2236J

Revision: 2008 October

2009 Murano

AV

RGB (B: BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY 

UNIT)

AV-113

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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RGB (B: BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DIS-
PLAY UNIT)

Description

INFOID:0000000003509184

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

Diagnosis Procedure

INFOID:0000000003509185

1.

CHECK CONTINUITY RGB (B: BLUE) 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 (B: BLUE) 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

18

M129

38

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

18

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Connector

Terminal

M49

18

Ground

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

SKIB2237J

Revision: 2008 October

2009 Murano

AV-114

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

RGB SYNCHRONIZING SIGNAL CIRCUIT

RGB SYNCHRONIZING SIGNAL CIRCUIT

Description

INFOID:0000000003356796

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:0000000003356797

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

M129

41

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

19

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Connector

Terminal

M49

19

Ground

—

SKIB3603E

Revision: 2008 October

2009 Murano

AV

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

UNIT)

AV-115

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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

Description

INFOID:0000000003509188

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:0000000003509189

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

M129

43

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

Revision: 2008 October

2009 Murano

AV-116

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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

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

Description

INFOID:0000000003509192

In composite image (DVD image, AUX image, camera image), transmit the vertical synchronizing (VP) signal
and horizontal 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:0000000003509193

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

M129

45

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

8

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Connector

Terminal

M49

8

Ground

—

SKIB3603E

Revision: 2008 October

2009 Murano

AV

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

AV-117

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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

Description

INFOID:0000000003509196

In composite image (DVD, AUX and camera image), transmit the vertical synchronizing (VP) signal and hori-
zontal 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:0000000003509197

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

M129

57

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M49

20

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Connector

Terminal

M49

20

Ground

—

SKIB3598E

Revision: 2008 October

2009 Murano

AV-118

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DIS-

PLAY UNIT)

COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT
DISPLAY UNIT)

Description

INFOID:0000000003510959

WITHOUT DVD ENTERTAINMENT SYSTEM

AV control unit that inputs the camera image signal and AUX image signal transmits the composite image sig-
nal to the front display unit.

WITH DVD ENTERTAINMENT SYSTEM

AV control unit receives the image signal from the video distributor and camera control unit and then transmits
the composite image signal (AUX, DVD and camera image) to the front display unit.

Diagnosis Procedure

INFOID:0000000003510960

1.

CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connector and front display unit connector.

3.

Check continuity between AV control unit harness connector and front display 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 COMPOSITE IMAGE SIGNAL

1.

Connect AV control unit connector and front display unit connector.

2.

Turn ignition switch ON.

3.

Check signal between front display harness connector using an oscilloscope.

Is the inspection result normal?

YES

>> Replace front display unit.

NO

>> Replace AV control unit.

AV control unit

Front display unit

Continuity

Connector

Terminals

Connector

Terminals

M129

36

M49

15

Existed

37

4

Front display unit

Ground

Continuity

Connector

Terminal

M49

15

Not existed

(+)

(

−

)

Condition

Signal

Front display unit

Front display unit

Connector

Terminal

Connector

Terminal

M49

15

M49

4

When AUX, DVD or camera image 
is displayed on front display.

SKIB2251J

Revision: 2008 October

2009 Murano

AV

COMPOSITE IMAGE SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO AV CONTROL 

UNIT)

AV-119

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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COMPOSITE IMAGE SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO AV
CONTROL UNIT)

Description

INFOID:0000000003509204

Video distributor receives the image signal from the DVD player and auxiliary input jack and then transmits it to
the AV control unit and rear display unit.

Diagnosis Procedure

INFOID:0000000003509205

1.

CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect video distributor connector and AV control unit connector.

3.

Check continuity between video distributor harness connector and AV control unit harness connector.

4.

Check continuity between AV control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK COMPOSITE IMAGE SIGNAL

1.

Connect video distributor connector and AV control unit connector.

2.

Turn ignition switch ON.

3.

Check signal between AV control unit harness connector using an oscilloscope.

Is the inspection result normal?

YES

>> Replace AV control unit.

NO

>> Replace video distributor.

Video distributor

AV control unit

Continuity

Connector

Terminals

Connector

Terminals

M258

8

M130

66

Existed

6

74

AV control unit

Ground

Continuity

Connector

Terminal

M130

66

Not existed

(+)

(

−

)

Condition

Signal

AV control unit

AV control unit

Connector

Terminal

Connector

Terminal

M130

66

M130

74

When AUX, DVD or camera image 
is displayed on front display.

SKIB2251J

Revision: 2008 October

2009 Murano

AV-120

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

COMPOSITE IMAGE SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO REAR DIS-

PLAY UNIT)

COMPOSITE IMAGE SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO REAR
DISPLAY UNIT)

Description

INFOID:0000000003580075

Video distributor receives the image signal from the DVD player and auxiliary input jack and then transmits it to
the AV control unit and rear display unit.

Diagnosis Procedure

INFOID:0000000003580076

1.

CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect video distributor connector and rear display unit connector.

3.

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

4.

Check continuity between rear display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK COMPOSITE IMAGE SIGNAL

1.

Connect video distributor connector and rear display unit connector.

2.

Turn ignition switch ON.

3.

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

Is the inspection result normal?

YES

>> Replace rear display unit.

NO

>> Replace video distributor.

Video distributor

Rear display unit

Continuity

Connector

Terminal

Connector

Terminal

M257

34

R152

14

Existed

Rear display unit

Ground

Continuity

Connector

Terminal

R152

14

Not existed

(+)

(

−

)

Condition

Signal

Rear display unit

Connector

Terminal

R152

14

Ground

When AUX, DVD or camera image 
is displayed on front display.

SKIB2251J

Revision: 2008 October

2009 Murano

AV

RGB (R: RED) SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO REAR DISPLAY 

UNIT)

AV-121

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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RGB (R: RED) SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO REAR DIS-
PLAY UNIT)

Description

INFOID:0000000003509227

Transmit the image displayed with video distributor with RGB signal to the rear display unit.

Diagnosis Procedure

INFOID:0000000003509228

1.

CHECK CONTINUITY RGB (R: RED) SIGNAL 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.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB (R: RED) 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

>> Replace rear display unit.

NO

>> Replace video distributor.

Rear display unit

Video distributor

Continuity

Connector

Terminal

Connector

Terminal

R152

22

M257

25

Existed

Rear display unit

Ground

Continuity

Connector

Terminal

R152

22

Not existed

(+)

(

−

)

Condition

Signal

Rear display unit

Connector

Terminal

R152

22

Ground

Rear seat remote controller opera-
tion when AUX or DVD image is 
displayed on rear display unit.

JSNIA0984ZZ

Revision: 2008 October

2009 Murano

AV-122

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

RGB (G: GREEN) SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO REAR DISPLAY 

UNIT)

RGB (G: GREEN) SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO REAR DIS-
PLAY UNIT)

Description

INFOID:0000000003509229

Transmit the image displayed with video distributor with RGB signal to the rear display unit.

Diagnosis Procedure

INFOID:0000000003509230

1.

CHECK CONTINUITY RGB (G: GREEN) SIGNAL 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.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB (G: GREEN) 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

>> Replace rear display unit.

NO

>> Replace video distributor.

Rear display unit

Video distributor

Continuity

Connector

Terminal

Connector

Terminal

R152

21

M257

26

Existed

Rear display unit

Ground

Continuity

Connector

Terminal

R152

21

Not existed

(+)

(

−

)

Condition

Signal

Rear display unit

Connector

Terminal

R152

21

Ground

Rear seat remote controller opera-
tion when AUX or DVD image is 
displayed on rear display unit.

JSNIA0984ZZ

Revision: 2008 October

2009 Murano

AV

RGB (B: BLUE) SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO REAR DISPLAY 

UNIT)

AV-123

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

RGB (B: BLUE) SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO REAR DIS-
PLAY UNIT)

Description

INFOID:0000000003509231

Transmit the image displayed with video distributor with RGB signal to the rear display unit.

Diagnosis Procedure

INFOID:0000000003509232

1.

CHECK CONTINUITY RGB (B: BLUE) SIGNAL 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.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB (B: BLUE) 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

>> Replace rear display unit.

NO

>> Replace video distributor.

Rear display unit

Video distributor

Continuity

Connector

Terminal

Connector

Terminal

R152

20

M257

28

Existed

Rear display unit

Ground

Continuity

Connector

Terminal

R152

20

Not existed

(+)

(

−

)

Condition

Signal

Rear display unit

Connector

Terminal

R152

20

Ground

Rear seat remote controller opera-
tion when AUX or DVD image is 
displayed on rear display unit.

JSNIA1090ZZ

Revision: 2008 October

2009 Murano

AV-124

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

COMPOSITE SYNCHRONIZING SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO 

REAR DISPLAY UNIT)

COMPOSITE SYNCHRONIZING SIGNAL CIRCUIT (VIDEO DISTRIBUTOR
TO REAR DISPLAY UNIT)

Description

INFOID:0000000003509233

Transmit the composite synchronizing signal to the rear display unit so as to synchronize the composite image
displayed with video distributor.

Diagnosis Procedure

INFOID:0000000003509234

1.

CHECK CONTINUITY COMPOSITE SYNCHRONIZING SIGNAL 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.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK COMPOSITE SYNCHRONIZING 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

>> Replace rear display unit.

NO

>> Replace video distributor.

Rear display unit

Video distributor

Continuity

Connector

Terminal

Connector

Terminal

R152

13

M257

33

Existed

Rear display unit

Ground

Continuity

Connector

Terminal

R152

13

Not existed

(+)

(

−

)

Condition

Signal

Rear display unit

Connector

Terminal

R152

13

Ground

When AUX or DVD image is dis-
played on rear display unit.

SKIB0825E

Revision: 2008 October

2009 Murano