Composite Image Signal Circuit Bose Audio With Navigation

COMPOSITE IMAGE SIGNAL CIRCUIT





Description
AV control unit transmits the playback DVD image signal and AUX image signal to the front display unit.




Diagnosis Procedure
1.CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and front display unit connector.
3. Check continuity between AV control unit harness connector and front display unit harness connector.





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





Is the inspection result normal?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK AUX COMPOSITE SIGNAL
1. Connect AV control unit connector and front display unit connector.
2. Turn ignition switch ON.
3. Check signal between auxiliary input jacks harness connector and ground.





Is the inspection result normal?
YES - Replace front display unit. Removal And Installation Bose Audio With Navigation.
NO - Replace AV control unit. Removal And Installation Bose Audio With Navigation.