Nissan Quest E52. Instruction — part 125
AV
COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DIS-
PLAY UNIT)
AV-379
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT
DISPLAY UNIT)
Description
INFOID:0000000009652190
The AV control unit outputs image signal (DVD, auxiliary input, and camera) to the front display unit and rear
display unit by composite image signal.
Diagnosis Procedure
INFOID:0000000009652191
1.
CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY
UNIT)
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and front display unit connector.
3.
Check continuity between AV control unit harness connector and front display unit 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 COMPOSITE IMAGE SIGNAL (AV CONTROL UNIT TO FRONT DISPLAY UNIT)
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.
Is inspection result normal?
YES
>> Replace front display unit. Refer to
AV-405, "Removal and Installation"
.
NO
>> Replace AV control unit. Refer to
AV-404, "Removal and Installation"
.
AV control unit
Front display unit
Continuity
Connector
Terminal
Connector
Terminal
M172
46
M156
4
Existed
47
15
AV control unit
Ground
Continuity
Connector
Terminal
M172
46
Not existed
47
Probe
Condition
Standard
Reference value
(+)
(
−
)
Front display unit
Connector
Terminal
Connector
Terminal
M156
15
M156
4
When DVD,
AUX or cam-
era image is
displayed.
Waveform according to
composite image is in-
put.
SKIB2251J
AV-380
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO REAR DISPLAY
UNIT)
COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO REAR DIS-
PLAY UNIT)
Description
INFOID:0000000009652192
The AV control unit outputs image signal (DVD, auxiliary input, and camera) to the front display unit and rear
display unit by composite image signal.
Diagnosis Procedure
INFOID:0000000009652193
1.
CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO REAR DISPLAY
UNIT)
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and rear display unit connector.
3.
Check continuity between AV control unit harness connector and rear 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 (AV CONTROL UNIT TO REAR DISPLAY UNIT)
1.
Connect AV control unit connector and rear display unit connector.
2.
Turn ignition switch ON.
3.
Check signal between rear display unit harness connector.
Is the inspection result normal?
YES
>> Replace rear display unit. Refer to
AV-406, "Removal and Installation"
NO
>> Replace AV control unit. Refer to
AV-404, "Removal and Installation"
.
AV control unit
Rear display unit
Continuity
Connector
Terminal
Connector
Terminal
M173
67
R36
7
Existed
66
8
AV control unit
Ground
Continuity
Connector
Terminal
M173
67
Not existed
66
Probe
Condition
Standard
Reference value
(+)
(
−
)
Rear display unit
Connector
Terminal
Connector
Terminal
R36
7
R36
8
When DVD
or AUX im-
age is dis-
played.
Waveform according to
composite image is in-
put.
SKIB2251J
AV
AUX IMAGE SIGNAL CIRCUIT
AV-381
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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AUX IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009652194
• Transmits the image signal of AUX (auxiliary input) device from auxiliary input jacks to AV control unit.
• The AV control unit transmits the AUX image signal to the front display unit by composite image signal.
Diagnosis Procedure
INFOID:0000000009652195
1.
CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and auxiliary input jacks connector.
3.
Check continuity between AV control unit harness connector and auxiliary input jacks 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
1.
Connect AV control unit connector and auxiliary input jacks connector.
2.
Turn ignition switch ON.
3.
Check signal between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
AV-404, "Removal and Installation"
.
NO
>> Check that there is no malfunction in the external device.
AV control unit
Auxiliary input jacks
Continuity
Connector
Terminal
Connector
Terminal
M173
61
B273
7
Existed
69
8
AV control unit
Ground
Continuity
Connector
Terminal
M173
61
Not existed
69
Probe
Condition
Standard
Reference value
(+)
(
−
)
AV control unit
Connector
Terminal
Connector
Terminal
M173
61
M173
69
When AUX
image is dis-
played on
front or rear
display unit.
Waveform according to
AUX image is input.
SKIB2251J
AV-382
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
CAMERA IMAGE SIGNAL CIRCUIT
CAMERA IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009652196
• AV control unit outputs camera power supply to rear view camera and inputs rear view camera image signal
from rear view camera when the reverse signal is input.
• The AV control unit that inputs the camera image signal transmits the camera image signal to the front dis-
play unit.
Diagnosis Procedure
INFOID:0000000009652197
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 VOLTAGE CAMERA POWER SUPPLY
1.
Connect AV control unit connector and rear view camera connector.
2.
Turn ignition switch ON.
3.
Shift the selector lever to “R”.
4.
Check voltage between AV control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Replace AV control unit. Refer to
AV-404, "Removal and Installation"
.
3.
CHECK CONTINUITY CAMERA IMAGE SIGNAL 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.
AV control unit
Rear view camera
Continuity
Connector
Terminal
Connector
Terminal
M173
73
D167
1
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M173
73
Not existed
Probe
Standard
Voltage
(Approx.)
(+)
(
−
)
AV control unit
Connector
Terminal
Connector
Terminal
M173
73
M173
72
5.9 - 6.5 V
6.2 V
AV control unit
Rear view camera
Continuity
Connector
Terminal
Connector
Terminal
M173
62
D167
3
Existed
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