Nissan Murano. Manual — part 85
AV-118
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH COLOR DISPLAY]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009721632
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connectors and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between AV control unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connectors.
3.
Check continuity between AV control unit harness connectors and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
DISPLAY UNIT
DISPLAY UNIT : Diagnosis Procedure
INFOID:0000000009721633
1.
CHECK POWER SUPPLY CIRCUIT (DISPLAY SIDE)
Check voltage between display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
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.
Power source
Fuse No.
Battery
35
Ignition switch ACC or ON
19
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
M171
19
OFF
Battery voltage
ACC power supply
7
ACC
Battery voltage
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M171
20
OFF
Existed
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Inverter VCC
M194
2
ACC
9.0 V
Signal VCC
3
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-119
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH COLOR DISPLAY]
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4.
Check continuity between display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK POWER SUPPLY CIRCUIT (AV CONTROL UNIT SIDE)
1.
Connect the AV control unit harness connector.
2.
Turn ignition switch ACC.
3.
Check voltage between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace AV control unit. Refer to
4.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector.
3.
Check continuity between display unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Diagnosis Procedure
INFOID:0000000009721634
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
AV control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
M172
48
M194
2
Existed
36
3
Existed
Display unit
Ground
Continuity
Connector
Terminal
M194
2
Not existed
3
Not existed
(+)
(
−
)
Ignition switch
position
Voltage (Ap-
prox.)
AV control unit
Connector
Terminal
M172
48
Ground
ACC
9.0 V
36
9.0 V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M194
1
OFF
Existed
Power source
Fuse No.
Battery
35
Ignition switch ACC or ON
19
AV-120
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH COLOR DISPLAY]
POWER SUPPLY AND GROUND CIRCUIT
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between satellite radio tuner harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Check harness between satellite radio tuner and fuse.
TEL ADAPTER UNIT
TEL ADAPTER UNIT : Diagnosis Procedure
INFOID:0000000009721635
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between TEL adapter unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between TEL adapter unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect TEL adapter unit connector.
3.
Check continuity between TEL adapter unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Signal name
(+)
(-)
Ignition switch position
Voltage
(Approx.)
Satellite radio tuner
Connector
Terminal
Battery power supply
B48
12
Ground
OFF
Battery voltage
ACC power supply
16
ACC
Power source
Fuse No.
Battery
35
Ignition switch ACC or ON
19
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
B39
1
OFF
Battery voltage
ACC power supply
2
ACC
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
B39
4
OFF
Existed
AV
RGB (R: RED) SIGNAL CIRCUIT
AV-121
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH COLOR DISPLAY]
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RGB (R: RED) SIGNAL CIRCUIT
Description
INFOID:0000000009721636
Transmit the image displayed with AV control unit with RGB image signal to the display unit.
Diagnosis Procedure
INFOID:0000000009721637
1.
CHECK CONTINUITY RGB (R: RED) 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 display unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK RGB (R: RED) SIGNAL
1.
Connect AV control unit connector and display unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector and ground.
Is 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
M172
43
M194
17
Existed
Display unit
Ground
Continuity
Connector
Terminal
M194
17
Not existed
(+)
(
−
)
Condition
Reference value
Display unit
Connector
Terminal
M194
17
Ground
Start confirmation/adjust-
ment mode, and then dis-
play color bar by
selecting “Color Spec-
trum Bar” on DISPLAY
DIAGNOSIS screen.
SKIB2238J
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