Infiniti QX56 (Z62). Manual — part 81
AV-178
< DTC/CIRCUIT DIAGNOSIS >
MICROPHONE SIGNAL CIRCUIT
MICROPHONE SIGNAL CIRCUIT
Description
INFOID:0000000006216346
Supply power from AV control unit to microphone. The microphone transmits the sound/voice to the AV control
unit.
Diagnosis Procedure
INFOID:0000000006216347
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-212, "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
M210
71
R17
2
Existed
72
4
87
1
AV control unit
Ground
Continuity
Connector
Terminals
M210
72
Not existed
87
(+)
(
−
)
Voltage
(Approx.)
AV control unit
Ground
Connector
Terminal
M210
72
5.0 V
AV
MICROPHONE SIGNAL CIRCUIT
AV-179
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
AV-212, "Removal and Installation"
.
NO
>> Replace microphone. Refer to
AV-231, "Removal and Installation"
.
(+)
(
−
)
Condition
Reference value
AV control unit
AV control unit
Connector
Terminal
Connector
Terminal
M210
87
M210
71
Give a voice.
PKIB5037J
AV-180
< DTC/CIRCUIT DIAGNOSIS >
CAMERA IMAGE SIGNAL CIRCUIT
CAMERA IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000006216348
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:0000000006216349
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-212, "Removal and Installation"
.
NO
>> Replace around view monitor control unit. Refer to
AV-233, "Removal and Installation"
Front display unit
Around view monitor control
unit
Continuity
Connector
Terminal
Connector
Terminal
M215
8
M48
27
Existed
Front display unit
Ground
Continuity
Connector
Terminal
M215
8
Not existed
(+)
(
−
)
Condition
Reference value
Front display unit
Connector
Terminal
M215
8
Ground
At camera image is dis-
played.
SKIB2251J
AV
FRONT CAMERA COMMUNICATION SIGNAL CIRCUIT
AV-181
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
FRONT CAMERA COMMUNICATION SIGNAL CIRCUIT
Description
INFOID:0000000006216350
• 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.
• Superimpose the guiding lines, predictive course line and sonar indicator to the camera image that outputs
to the front display unit.
• Around view monitor control unit performs the reception/transmission of communication signal with each
camera.
Diagnosis Procedure
INFOID:0000000006216351
1.
CHECK CONTINUITY COMMUNICATION SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect around view monitor control unit connector and front camera connector.
3.
Check continuity between around view monitor control unit harness connector and front camera harness
connector.
4.
Check continuity between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK COMMUNICATION SIGNAL
1.
Connect around view monitor control unit connector and front camera connector.
2.
Turn ignition switch ON.
3.
Check signal between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES
>> Replace around view monitor control unit. Refer to
AV-233, "Removal and Installation"
NO
>> Replace front camera. Refer to
AV-234, "Removal and Installation"
.
Around view monitor control
unit
Front camera
Continuity
Connector
Terminal
Connector
Terminal
M49
45
E50
6
Existed
Around view monitor control
unit
Ground
Continuity
Connector
Terminal
B49
45
Not existed
(+)
(
−
)
Condition
Reference value
Around view monitor control
unit
Connector
Terminal
M49
45
Ground
“CAMERA” switch is ON or shift
position is “R”.
JSNIA0836GB
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