Nissan Quest E52. Instruction — part 177
AV
AUX IMAGE SIGNAL CIRCUIT
AV-587
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AUX IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009652385
• 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:0000000009652386
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-610, "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
M179
26
B273
7
Existed
46
8
AV control unit
Ground
Continuity
Connector
Terminal
M179
26
Not existed
46
Probe
Condition
Standard
Reference value
(+)
(
−
)
AV control unit
Connector
Terminal
Connector
Terminal
M179
26
M179
46
When AUX
image is dis-
played on
front or rear
display unit.
Waveform according to
AUX image is input.
SKIB2251J
AV-588
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CAMERA IMAGE SIGNAL CIRCUIT
CAMERA IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009652387
Around view monitor control unit supplies to the front camera, rear camera and side camera. And then it
superimpose the images from each camera and outputs then to the front display unit.
Diagnosis Procedure
INFOID:0000000009652388
1.
CHECK CONTINUITY CAMERA IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect front display unit connector and around view monitor control unit connector.
3.
Check continuity between front display unit harness connector and around view monitor control unit har-
ness connector.
4.
Check continuity between front display unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK CAMERA IMAGE SIGNAL
1.
Connect front display unit connector and around view monitor control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between front display unit harness connector and ground.
Is inspection result normal?
YES
>> Replace front display unit. Refer to
AV-611, "Removal and Installation"
.
NO
>> Replace around view monitor control unit. Refer to
AV-631, "Removal and Installation"
Front display unit
Around view monitor control
unit
Continuity
Connector
Terminal
Connector
Terminal
M155
8
M253
24
Existed
Front display unit
Ground
Continuity
Connector
Terminal
M155
8
Not existed
(+)
(
−
)
Condition
Standard
Reference value
(Approx.)
Front display unit
Connector
Terminal
M155
8
Ground
At camera image is dis-
played.
Waveform according to
camera image is input.
JSNIA0834GB
AV
DISK EJECT SIGNAL CIRCUIT
AV-589
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DISK EJECT SIGNAL CIRCUIT
Description
INFOID:0000000009652389
The disk eject switch outputs disk eject signal to the AV control unit when the switch of disk eject switch is
pressed.
Diagnosis Procedure
INFOID:0000000009652390
1.
CHECK CONTINUITY DISK EJECT SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and disk eject switch connector.
3.
Check continuity between AV control unit harness connector and disk eject switch 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 AV CONTROL UNIT VOLTAGE
1.
Connect AV control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between disk eject switch harness connector and ground.
Is the inspection result normal?
YES
>> Replace disk eject switch. Refer to
AV-623, "Removal and Installation"
.
NO
>> Replace AV control unit. Refer to
AV-610, "Removal and Installation"
.
AV control unit
Disk eject switch
Continuity
Connector
Terminal
Connector
Terminal
M179
29
M153
4
Existed
49
3
AV control unit
Ground
Continuity
Connector
Terminal
M179
29
Not existed
49
Probe
Standard
Voltage
(Approx.)
(+)
(
−
)
Disk eject switch
Connector
Terminal
Connector
Terminal
M153
4
M153
3
5.0 V or more
5.0 V
AV-590
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MICROPHONE SIGNAL CIRCUIT
MICROPHONE SIGNAL CIRCUIT
Description
INFOID:0000000009652391
Supply power from AV control unit to microphone. The microphone transmits the sound/voice to the AV control
unit.
Diagnosis Procedure
INFOID:0000000009652392
1.
CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND MICROPHONE CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and microphone connector.
3.
Check continuity between AV control unit harness connector and microphone 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 VOLTAGE MICROPHONE VCC
1.
Connect AV control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between AV control unit harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace AV control unit. Refer to
AV-610, "Removal and Installation"
.
3.
CHECK MICROPHONE SIGNAL
1.
Connect microphone connector.
2.
Check signal between AV control unit harness connector.
AV control unit
Microphone
Continuity
Connector
Terminals
Connector
Terminals
M180
71
R20
2
Existed
72
4
87
1
AV control unit
Ground
Continuity
Connector
Terminals
M180
72
Not existed
87
Probe
Standard
Voltage
(Approx.)
(+)
(
−
)
AV control unit
Connector
Terminal
Connector
Terminal
M180
72
M178
20
4.18 - 5.3 V
5.0 V
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