With Surround Sound

COMPOSITE IMAGE SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO HEADREST 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 video distributor connector B24 and headrest display unit connectors.
3.Check continuity between video distributor connector B24 and headrest display unit connectors.





4.Check continuity between video distributor connector B24 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 video distributor connector B24 and headrest display unit connectors.
2.Turn ignition switch ON.
3.Check signal between headrest display unit connectors and ground.





Is the inspection result normal?
YES- Replace headrest display unit. Refer to "Removal and Installation" Without Surround Sound.
NO- Replace video distributor. Refer to "Removal and Installation" With Surround Sound.
Revision: March 20122013 Infiniti JX