Operation CHARM: Car repair manuals for everyone.

With Surround Sound




COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO VIDEO DISTRIBUTOR)

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 M164 and video distributor connector B25.
3.Check continuity between AV control unit connector M164 and video distributor connector B25.





4.Check continuity between AV control unit connector M164 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 M164 and video distributor connector B25.
2.Turn ignition switch ON.
3.Check signal between video distributor connector B25 and ground.






Is the inspection result normal?
YES- Replace video distributor. 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