Nissan Murano Z51. Manual — part 89
AV
DVD IMAGE SIGNAL CIRCUIT
AV-135
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DVD IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000005528554
The DVD player transmits the playback DVD image signal to the video distributor. The 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.
Diagnosis Procedure
INFOID:0000000005528555
1.
CHECK CONTINUITY DVD IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect DVD player connector and video distributor connector.
3.
Check continuity between DVD player harness connector and video distributor harness connector.
4.
Check continuity between video distributor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK DVD IMAGE SIGNAL
1.
Connect DVD player connector and video distributor connector.
2.
Turn ignition switch ON.
3.
Check signal between video distributor harness connector and ground using an oscilloscope.
Is the inspection result normal?
YES
>> Replace video distributor.
NO
>> Replace DVD player.
DVD player
Video distributor
Continuity
Connector
Terminals
Connector
Terminals
M254
7
M258
23
Existed
5
22
Video distributor
Ground
Continuity
Connector
Terminal
M258
23
Not existed
(+)
(
−
)
Condition
Signal
Video distributor
Connector
Terminal
M258
23
Ground
When DVD image is displayed.
SKIB2251J
AV-136
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DISK EJECT SIGNAL CIRCUIT
DISK EJECT SIGNAL CIRCUIT
Description
INFOID:0000000005528556
The eject signal is output to AV control unit when the eject switch of multifunction switch is pressed.
Diagnosis Procedure
INFOID:0000000005528557
1.
CHECK CONTINUITY DISK EJECT SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect multifunction switch connector and AV control unit connector.
3.
Check continuity between multifunction switch harness connector and AV control unit harness connector.
4.
Check continuity between multifunction switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK AV CONTROL UNIT VOLTAGE
1.
Connect AV control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace preset switch.
NO
>> Replace AV control unit.
Multifunction switch
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M125
14
M131
103
Existed
Multifunction switch
Ground
Continuity
Connector
Terminal
M125
14
Not existed
(+)
(
−
)
Voltage
(Approx.)
AV control unit
Connector
Terminal
M131
103
Ground
3.3 V
AV
MICROPHONE SIGNAL CIRCUIT
AV-137
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MICROPHONE SIGNAL CIRCUIT
Description
INFOID:0000000005528558
Supply power from TEL adapter unit to microphone. The microphone transmits the sound/voice to the micro-
phone.
Diagnosis Procedure
INFOID:0000000005528559
1.
CHECK CONTINUITY BETWEEN TEL ADAPTER UNIT AND MICROPHONE CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect TEL adapter unit connector and microphone connector.
3.
Check continuity between TEL adapter unit harness connector and microphone harness connector.
4.
Check continuity between TEL adapter unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VOLTAGE MICROPHONE VCC
1.
Connect TEL adapter unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between TEL adapter unit harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace TEL adapter unit.
3.
CHECK MICROPHONE SIGNAL
1.
Connect microphone connector.
2.
Check signal between TEL adapter unit harness connector using an oscilloscope.
TEL adapter unit
Microphone
Continuity
Connector
Terminals
Connector
Terminals
B39
7
R20
1
Existed
8
2
29
4
TEL adapter unit
Ground
Continuity
Connector
Terminals
B39
7
Not existed
29
(+)
(
−
)
Voltage
(Approx.)
TEL adapter unit
TEL adapter unit
Connector
Terminal
Connector
Terminal
B39
29
B39
8
5.0 V
AV-138
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[BOSE AUDIO WITHOUT NAVIGATION]
MICROPHONE SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> Replace TEL adapter unit.
NO
>> Replace microphone.
(+)
(
−
)
Condition
Signal
TEL adapter unit
TEL adapter unit
Connector
Terminal
Connector
Terminal
B39
7
B39
8
Give a voice
PKIB5037J
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