Nissan Murano Z51. Instruction — part 88
AV
HP SIGNAL CIRCUIT (REAR DISPLAY UNIT TO VIDEO DISTRIBUTOR)
AV-131
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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HP SIGNAL CIRCUIT (REAR DISPLAY UNIT TO VIDEO DISTRIBUTOR)
Description
INFOID:0000000005528548
In composite image (DVD and AUX images), transmit the vertical synchronizing (VP) signal and horizontal
synchronizing (HP) signal from rear display unit to video distributor so as to synchronize the RGB images dis-
played with video distributor such as the image quality adjusting menu, etc.
Diagnosis Procedure
INFOID:0000000005528549
1.
CHECK CONTINUITY HORIZONTAL SYNCHRONIZING (HP) 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 HORIZONTAL SYNCHRONIZING (HP) 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 video distributor.
NO
>> Replace rear display unit.
Rear display unit
Video distributor
Continuity
Connector
Terminal
Connector
Terminal
R152
18
M257
30
Existed
Rear display unit
Ground
Continuity
Connector
Terminal
R152
18
Not existed
(+)
(
−
)
Condition
Signal
Rear display unit
Connector
Terminal
R152
18
Ground
—
SKIB3601E
AV-132
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
AUX IMAGE SIGNAL CIRCUIT
AUX IMAGE SIGNAL CIRCUIT
WITHOUT DVD ENTERTAINMENT SYSTEM
WITHOUT DVD ENTERTAINMENT SYSTEM : Description
INFOID:0000000005528550
• Transmits the image signal of AUX device from auxiliary input jacks to AV control unit.
• AV control unit transmits the image signal that is input to the front display unit.
WITHOUT DVD ENTERTAINMENT SYSTEM : Diagnosis Procedure
INFOID:0000000005528551
1.
CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT (AUX INPUT JACKS AND AV CONTROL UNIT)
1.
Turn ignition switch OFF.
2.
Disconnect auxiliary input jacks connector and AV control unit connector.
3.
Check continuity between auxiliary input jacks 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 AUX IMAGE SIGNAL (AUX INPUT JACKS TO AV CONTROL UNIT)
1.
Connect auxiliary 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
>> GO TO 3.
NO
>> Check that there is no malfunction in the external device.
3.
CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT AND FRONT DISPLAY UNIT)
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.
Auxiliary input jacks
AV control unit
Continuity
Connector
Terminals
Connector
Terminals
M253
7
M130
66
Existed
8
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 image is displayed on
front display.
SKIB2251J
AV
AUX IMAGE SIGNAL CIRCUIT
AV-133
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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4.
Check continuity between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK AUX IMAGE SIGNAL
1.
Connect AV control unit connector and front display unit connector.
2.
Turn ignition switch ON.
3.
Check signal between front display unit harness connector using an oscilloscope.
Is the inspection result normal?
YES
>> Replace front display unit.
NO
>> Replace AV control unit.
WITH DVD ENTERTAINMENT SYSTEM
WITH DVD ENTERTAINMENT SYSTEM : Description
INFOID:0000000005528552
Transmits the image signal of external device from auxiliary input jacks to video distributor.
WITH DVD ENTERTAINMENT SYSTEM : Diagnosis Procedure
INFOID:0000000005528553
1.
CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect auxiliary input jacks connector and video distributor connector.
3.
Check continuity between auxiliary input jacks harness connector and video distributor harness connec-
tor.
4.
Check continuity between video distributor harness connector and ground.
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 image is displayed on
front display.
SKIB2251J
Auxiliary input jacks
Video distributor
Continuity
Connector
Terminals
Connector
Terminals
M253
7
M258
19
Existed
8
21
AV-134
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
AUX IMAGE SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK AUX IMAGE SIGNAL
1.
Connect auxiliary input jacks connector and video distributor connector.
2.
Turn ignition switch ON.
3.
Check signal between video distributor harness connector using an oscilloscope.
Is the inspection result normal?
YES
>> Replace video distributor.
NO
>> Check that there is no malfunction in the external device.
Video distributor
Ground
Continuity
Connector
Terminal
M258
19
Not existed
(+)
(
−
)
Condition
Signal
Video distributor
Video distributor
Connector
Terminal
Connector
Terminal
M258
19
M258
21
When AUX image is displayed.
SKIB2251J
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