Without Mobile Entertainment System

POWER SUPPLY AND GROUND CIRCUIT


FRONT DISPLAY UNIT : Diagnosis Procedure


Without Navigation
1.CHECK POWER SUPPLY CIRCUIT (FRONT DISPLAY SIDE)
Check voltage between front display unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
1. Turn ignition switch OFF.
2. Disconnect the harness connector between front display unit and AV control unit.
3. Check continuity between front display unit harness connector M203 and AV control unit harness connector M222.





4. Check continuity between front display unit harness connector M203 and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair harness or connector.
3.CHECK POWER SUPPLY CIRCUIT (AV CONTROL UNIT SIDE)
1. Connect the AV control unit harness connector.
2. Turn ignition switch ACC.
3. Check voltage between AV control unit harness connector and ground.





Is the inspection result normal?
YES - INSPECTION END
NO - Replacement of AV control unit.
4.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front display unit connector.
3. Check continuity between front display unit harness connector and ground.





Is the inspection result normal?
YES - INSPECTION END
NO - Repair harness or connector.

With Navigation
1.CHECK FUSE
Check for blown fuses.





Is the inspection result normal?
YES - GO TO 2.
NO - Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between front display unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Check harness between front display unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front display unit connector.
3. Check continuity between front display unit harness connector and ground.





Is the inspection result normal?
YES - INSPECTION END
NO - Repair harness or connector.