Infiniti FX35, FX50 (S51). Manual — part 84
AV
RGB AREA (YS) SIGNAL CIRCUIT
AV-109
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT NAVIGATION]
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RGB AREA (YS) SIGNAL CIRCUIT
Description
INFOID:0000000005246820
Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to front dis-
play unit.
Diagnosis Procedure
INFOID:0000000005246821
1.
CHECK CONTINUITY RGB AREA (YS) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect front display unit connector and AV control unit connector.
3.
Check continuity between front display unit harness connector and AV control unit harness connector.
4.
Check continuity between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK RGB AREA (YS) SIGNAL
1.
Connect front display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace front display unit. Refer to
.
NO
>> Replace AV control unit. Refer to
Front display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M194
9
M202
40
Existed
Front display unit
Ground
Continuity
Connector
Terminal
M194
9
Not existed
(+)
(
−
)
Condition
Reference value
(Approx.)
Front display unit
Connector
Terminal
M194
9
Ground
At RGB image is displayed
5.0 V
At AUX image is displayed
PKIB4948J
AV-110
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT NAVIGATION]
HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
Description
INFOID:0000000005246822
In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizon-
tal synchronizing (HP) signal from front display unit to AV control unit so as to synchronize the RGB images
displayed with AV control unit such as the image quality adjusting menu, etc.
Diagnosis Procedure
INFOID:0000000005246823
1.
CHECK CONTINUITY HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect front display unit connector and AV control unit connector.
3.
Check continuity between front display unit harness connector and AV control unit harness connector.
4.
Check continuity between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK HORIZONTAL SYNCHRONIZING (HP) SIGNAL
1.
Connect front display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
NO
>> Replace front display unit. Refer to
.
Front display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M194
8
M202
38
Existed
Front display unit
Ground
Continuity
Connector
Terminal
M194
8
Not existed
(+)
(
−
)
Reference value
Front display unit
Connector
Terminal
M194
8
Ground
SKIB3601E
AV
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
AV-111
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT NAVIGATION]
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VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
Description
INFOID:0000000005246824
In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizon-
tal synchronizing (HP) signal from front display unit to AV control unit so as to synchronize the RGB images
displayed with AV control unit such as the image quality adjusting menu, etc.
Diagnosis Procedure
INFOID:0000000005246825
1.
CHECK CONTINUITY VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect front display unit connector and AV control unit connector.
3.
Check continuity between front display unit harness connector and AV control unit harness connector.
4.
Check continuity between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL
1.
Connect front display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
NO
>> Replace front display unit. Refer to
.
Front display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M194
20
M202
50
Existed
Front display unit
Ground
Continuity
Connector
Terminal
M194
20
Not existed
(+)
(
−
)
Reference value
Front display unit
Connector
Terminal
M194
20
Ground
SKIB3598E
AV-112
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT NAVIGATION]
CAMERA IMAGE SIGNAL CIRCUIT
CAMERA IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000005528978
• 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:0000000005528979
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
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
M203
73
D121
1
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M203
73
Not existed
(+)
(
−
)
Condition
Voltage
(Approx.)
AV control unit
Connector
Terminal
M203
73
Ground
Shift position is “R”.
6.0 V
AV control unit
Rear view camera
Continuity
Connector
Terminal
Connector
Terminal
M203
62
D121
3
Existed
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