Navigation System: Testing and Inspection

RGB DIGITAL IMAGE SIGNAL CIRCUIT





Description
Transmit the image displayed with AV control unit with RGB digital image signal to the front display unit.




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





4. Check continuity between front display unit harness connector and ground.





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





Is the inspection result normal?
YES - Replace front display unit. Service and Repair.
NO - Replace AV control unit. Service and Repair.