Infiniti FX35, FX50 (S51). Manual - part 189

AV

MICROPHONE SIGNAL CIRCUIT

AV-529

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION (TWIN MONITOR)]

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-573, "Exploded View"

.

NO

>> Replace microphone. Refer to 

AV-579, "Exploded View"

.

(+)

(

−

)

Condition

Reference value

AV control unit

AV control unit

Connector

Terminal

Connector

Terminal

M210

87

M210

71

Give a voice.

PKIB5037J

AV-530

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION (TWIN MONITOR)]

CAMERA IMAGE SIGNAL CIRCUIT (AROUND VIEW MONITOR CONTROL UNIT 

TO DISPLAY UNIT)

CAMERA IMAGE SIGNAL CIRCUIT (AROUND VIEW MONITOR CONTROL
UNIT TO DISPLAY UNIT)

Description

INFOID:0000000005474885

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:0000000005474886

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-564, "Exploded View"

.

NO

>> Replace around view monitor control unit. Refer to 

AV-582, "Exploded View"

.

Front display unit

Around view monitor control 

unit

Continuity

Connector

Terminal

Connector

Terminal

M195

8

B46

27

Existed

Front display unit

Ground

Continuity

Connector

Terminal

M195

8

Not existed

(+)

(

−

)

Condition

Reference value

Front display unit

Connector

Terminal

M195

8

Ground

At camera image is dis-
played.

SKIB2251J

AV

FRONT CAMERA COMMUNICATION SIGNAL CIRCUIT

AV-531

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION (TWIN MONITOR)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

FRONT CAMERA COMMUNICATION SIGNAL CIRCUIT

Description

INFOID:0000000005474887

• 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 display unit. 

• Superimpose the guiding lines, predicted 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:0000000005474888

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-582, "Exploded View"

.

NO

>> Replace front camera. Refer to 

AV-583, "Exploded View"

.

Around view monitor control 

unit

Front camera

Continuity

Connector

Terminal

Connector

Terminal

B45

45

E155

6

Existed

Around view monitor control 

unit

Ground

Continuity

Connector

Terminal

B45

45

Not existed

(+)

(

−

)

Condition

Reference value

Around view monitor control 

unit

Connector

Terminal

B45

45

Ground

“CAMERA” switch is ON or shift 
position is “R”.

JSNIA0836GB

AV-532

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION (TWIN MONITOR)]

FRONT CAMERA IMAGE SIGNAL CIRCUIT

FRONT CAMERA IMAGE SIGNAL CIRCUIT

Description

INFOID:0000000005525406

• 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 display unit. 

• Superimpose the guiding lines, predicted 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:0000000005474890

1.

CHECK CONTINUITY FRONT CAMERA POWER SUPPLY AND GROUND 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 VOLTAGE FRONT CAMERA POWER SUPPLY

1.

Connect around view monitor control unit connector and front camera connector.

2.

Turn ignition switch ON.

3.

Check voltage between around view monitor control unit harness connector.

Is inspection result normal?

YES

>> GO TO 3.

NO

>> Replace around view monitor control unit. Refer to 

AV-582, "Exploded View"

.

3.

CHECK CONTINUITY FRONT CAMERA IMAGE 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.

Around view monitor control 

unit

Front camera

Continuity

Connector

Terminals

Connector

Terminals

B45

44

E155

2

Existed

46

1

Around view monitor control 

unit

Ground

Continuity

Connector

Terminal

B45

46

Not existed

(+)

(

−

)

Condition

Voltage

(Approx.)

Around view monitor control 

unit

Connector

Terminal

B45

46

Ground

“CAMERA” switch is ON or 
shift position is “R”.

6.0 V