Composite Image Signal Circuit

COMPOSITE IMAGE SIGNAL CIRCUIT

Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Base Audio.

1. CHECK COMPOSITE IMAGE SIGNAL CIRCUIT CONTINUITY

1.Turn ignition switch OFF.
2.Disconnect AV control unit connector M45 and display unit connector.
3.Check continuity between AV control unit connector M45 terminal 53 and display unit connector M93 terminal 15.





4.Check continuity between AV control unit connector M45 terminal 53 and ground.





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

2. CHECK COMPOSITE IMAGE SIGNAL GROUND CIRCUIT CONTINUITY

Check continuity between AV control unit connector M45 terminal 54 and display unit connector M93 terminal
4.





Is inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness or connectors.

3. CHECK COMPOSITE IMAGE SIGNAL

1.Connect AV control unit connector M45 and display unit connector.
2.Turn ignition switch ON.
3.Check signal between display unit connector M93 terminal 15 and ground.





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