Nissan Murano Z51. Manual — part 85
AV
RGB AREA (YS) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY
UNIT)
AV-119
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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RGB AREA (YS) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DIS-
PLAY UNIT)
Description
INFOID:0000000005528524
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:0000000005528525
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
AV-120
< DTC/CIRCUIT 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:0000000005528526
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:0000000005528527
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
AV
VP SIGNAL CIRCUIT (FRONT DISPLAY UNIT TO AV CONTROL UNIT)
AV-121
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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VP SIGNAL CIRCUIT (FRONT DISPLAY UNIT TO AV CONTROL UNIT)
Description
INFOID:0000000005528528
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:0000000005528529
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
AV-122
< DTC/CIRCUIT 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:0000000005528530
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:0000000005528531
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
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