Nissan Murano. Manual — part 161
AV-422
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
COMPOSITE IMAGE SIGNAL CIRCUIT
COMPOSITE IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009721948
• DVD is played by inserting DVD into the AV control unit.
• DVD image signals are transmitted to the display unit.
• AV control unit receives the image signal from the auxiliary input jacks and USB (video data) and then trans-
mits it to the display unit.
Diagnosis Procedure
INFOID:0000000009721949
1.
CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and display unit connector.
3.
Check continuity between AV control unit harness connector and display 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 AV control unit connector and display unit connector.
2.
Turn ignition switch ON.
3.
Check signal between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace display unit. Refer to
.
NO
>> Replace AV control unit. Refer to
AV control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
M180
68
M195
18
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M180
68
Not existed
(+)
(
−
)
Condition
Reference value
AV control unit
Connector
Terminal
M180
68
Ground
At DVD image is displayed.
SKIB2251J
AV
RGB DIGITAL IMAGE SIGNAL CIRCUIT
AV-423
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
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F
G
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RGB DIGITAL IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009721950
Transmit the image displayed with AV control unit with RGB digital image signal to the display unit.
Diagnosis Procedure
INFOID:0000000009721951
1.
CHECK CONTINUITY RGB DIGITAL IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and AV control unit connector.
3.
Check continuity between display unit harness connector and AV control unit harness connector.
4.
Check continuity between display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK RGB DIGITAL IMAGE SIGNAL
1.
Connect AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace display unit. Refer to
.
NO
>> Replace AV control unit. Refer to
Display unit
AV control unit
Continuity
Connector
Terminals
Connector
Terminals
M388
27
M387
157
Existed
28
158
Display unit
Ground
Continuity
Connector
Terminals
M388
27
Not existed
28
(+)
(
−
)
Condition
Voltage
(Approx.)
Display unit
Connector
Terminal
M388
27
Ground
—
3.0 V
28
AV-424
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
AUX IMAGE SIGNAL CIRCUIT
AUX IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009721952
• 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 display unit.
Diagnosis Procedure
INFOID:0000000009721953
1.
CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT
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 auxiliary input jacks harness connector and ground.
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 AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between auxiliary input jacks harness connector and ground.
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
NO
>> Check that there is no malfunction in the external device.
Auxiliary input jacks
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M253
7
M179
26
Existed
Auxiliary input jacks
Ground
Continuity
Connector
Terminal
M253
7
Not existed
(+)
(
−
)
Condition
Reference value
Auxiliary input jacks
Connector
Terminal
M253
7
Ground
At AUX image is displayed.
SKIB2251J
AV
CAMERA IMAGE SIGNAL CIRCUIT
AV-425
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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CAMERA IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009721954
• When receiving a reverse signal, the AV control unit supplies power to rear view camera.
• The rear view camera transmits a camera image signal to the display unit.
Diagnosis Procedure
INFOID:0000000009721955
1.
CHECK CONTINUITY CAMERA POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and rear view camera connector.
3.
Check continuity between AV control unit harness connector and rear view camera harness connector.
4.
Check continuity between AV control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK CONTINUITY CAMERA IMAGE SIGNAL CIRCUIT
1.
Disconnect display unit connector and rear view camera connector.
2.
Check continuity between display unit harness connector and rear view camera harness connector.
3.
Check continuity between display unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK CAMERA IMAGE SIGNAL
1.
Connect display unit connector and rear view camera connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector and ground.
AV control unit
Rear view camera
Continuity
Connector
Terminal
Connector
Terminal
M179
22
D192
1
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M179
22
Not existed
Display unit
Rear view camera
Continuity
Connector
Terminal
Connector
Terminal
M195
8
D192
3
Existed
Display unit
Ground
Continuity
Connector
Terminal
M195
8
Not existed
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