Infiniti EX35. Manual - part 187

AV

U1243 DISPLAY UNIT

AV-529

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

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B

A

O

P

3.

Check signal between display unit harness connector and ground.

Is inspection result normal?

YES

>> GO TO 4.

NO

>> Replace AV control unit.

4.

CHECK COMMUNICATION SIGNAL

Check signal between display unit harness connector and ground.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Replace display unit.

(+)

(

−

)

Signal

Display unit

Connector

Terminal

M75

11

Ground

PKIB5039J

(+)

(

−

)

Signal

Display unit

Connector

Terminal

M75

22

Ground

PKIB5039J

AV-530

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1244 GPS ANTENNA

U1244 GPS ANTENNA

Description

INFOID:0000000003160682

DTC Logic

INFOID:0000000003160683

Diagnosis Procedure

INFOID:0000000003160684

1.

GPS ANTENNA CHECK

Visually check GPS antenna and antenna feeder.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair malfunctioning parts.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1.

Disconnect GPS antenna connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit terminal and ground.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Replace AV control unit.

Part name

Description

GPS ANTENNA

GPS signal is received and sent to AV control unit.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Possible causes

U1244

GPS ANTENNA CONN
[U1244]

GPS antenna connection malfunction is detected

GPS antenna disconnection

(+)

(

−

)

Voltage

(Approx.)

AV control unit

Terminal

110

Ground

5.0 V

AV

U1250 CAMERA CONTROL UNIT

AV-531

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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U1250 CAMERA CONTROL UNIT

Description

INFOID:0000000003160688

DTC Logic

INFOID:0000000003160689

Diagnosis Procedure

INFOID:0000000003160690

1.

CHECK CAMERA-CONNECTION RECOGNITION SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connector and camera control unit connector.

3.

Check continuity between AV control unit harness connector and camera control unit harness connector.

Is 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 AV control unit harness connector and ground.

Is inspection result normal?

YES

>> Replace camera control unit.

NO

>> Replace AV control unit.

Part name

Description

CAMERA CONTROL UNIT

• Camera image signal is input from rear view camera, and camera image is in-

dicated on the display.

• Power (camera ON signal) is sent to rear view camera.
• Controlled by AV communication sent from AV control unit.
• AV control unit recognizes the presence of camera system with camera con-

nection recognition signal.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Possible causes

U1250

CAMERA CONT. CONN
[U1250]

A malfunction is detected in Camera-connection recogni-
tion signal circuit

Camera-connection recognition sig-
nal circuit

AV control unit

Camera control unit

Continuity

Connector

Terminal

Connector

Terminal

M87

40

B50

14

Existed

(+)

(

−

)

Voltage

(Approx.)

AV control unit

Connector

Terminal

M87

40

Ground

5.0 V

AV-532

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1258 SATELLITE RADIO ANTENNA

U1258 SATELLITE RADIO ANTENNA

Description

INFOID:0000000003160691

DTC Logic

INFOID:0000000003160692

Diagnosis Procedure

INFOID:0000000003160693

1.

SATELLITE RADIO ANTENNA CHECK

Visually check satellite radio antenna and antenna feeder.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair malfunctioning parts.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1.

Disconnect satellite radio antenna connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit terminal and ground.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Replace AV control unit.

Part name

Description

SATELLITE RADIO ANTENNA

Satellite radio signal is received and sent to AV control unit.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Possible causes

U1258

XM ANTENNA CONN
[U1258]

Satellite radio antenna connection malfunction is detected

Satellite radio antenna disconnection

(+)

(

−

)

Voltage

(Approx.)

AV control unit

Terminal

108

Ground

5.0 V