Nissan Quest E52. Manual - part 86

 

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Nissan Quest E52. Manual - part 86

 

 

AV

HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT

AV-223

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH SEPARATE DISPLAY]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT

Description

INFOID:0000000009652056

In composite image (DVD, auxiliary input, and camera images), transmit the vertical synchronizing (VP) signal
and horizontal 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:0000000009652057

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 

AV-250, "Removal and Installation"

.

NO

>> Replace front display unit. Refer to 

AV-251, "Removal and Installation"

.

Front display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M156

8

M172

38

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M156

8

Not existed

Probe

Standard

Reference value

(+)

(-)

Front display unit

Connector

Terminal

Connector

Terminal

M156

8

M156

1

Waveform of 1.0 V - 5.5 
V is output.

SKIB3601E

AV-224

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH SEPARATE DISPLAY]

VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT

VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT

Description

INFOID:0000000009652058

In composite image (DVD, auxiliary input, and camera images), transmit the vertical synchronizing (VP) signal
and horizontal 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:0000000009652059

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 

AV-250, "Removal and Installation"

.

NO

>> Replace front display unit. Refer to 

AV-251, "Removal and Installation"

.

Front display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M156

20

M172

50

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M156

20

Not existed

Probe

Standard

Reference value

(+)

(-)

Front display unit

Connector

Terminal

Connector

Terminal

M156

20

M156

1

Waveform of 1.0 V - 5.5 
V is output.

SKIB3598E

AV

COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DIS-

PLAY UNIT)

AV-225

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH SEPARATE DISPLAY]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT
DISPLAY UNIT)

Description

INFOID:0000000009652060

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:0000000009652061

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-251, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-250, "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-226

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO WITH SEPARATE DISPLAY]

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:0000000009652062

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:0000000009652063

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-252, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-250, "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

 

 

 

 

 

 

 

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