Nissan Murano Z51. Instruction — part 215
AV
RGB SYNCHRONIZING SIGNAL CIRCUIT
AV-639
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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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 >
[BOSE AUDIO WITH NAVIGATION]
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 >
[BOSE AUDIO WITH NAVIGATION]
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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
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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
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