With Surround Sound

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

Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" With Surround Sound.

1. CHECK COMPOSITE IMAGE SIGNAL CIRCUIT CONTINUITY

1.Turn ignition switch OFF.
2.Disconnect AV control unit connector M163 and display unit connector M92.
3.Check continuity between AV control unit connector M163 and display unit connector M92.





4.Check continuity between AV control unit connector M163 and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace harness or connectors.

2. CHECK COMPOSITE IMAGE SIGNAL

1.Connect AV control unit connector M163 and display unit connector M92.
2.Turn ignition switch ON.
3.Check signal between AV control unit connector M163 and ground.





Is the inspection result normal?
YES- Replace display unit. Refer to "Removal and Installation" With Surround Sound.
NO- Replace AV control unit. Refer to "Removal and Installation AV Control Unit" With Surround Sound.
Revision: March 20122013 Infiniti JX