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POWER SUPPLY AND GROUND CIRCUIT


FRONT DISPLAY UNIT : Diagnosis Procedure

1.CHECK POWER SUPPLY CIRCUIT (DISPLAY SIDE)
Check voltage between front display unit harness connectors 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 connectors and AV control unit harness connector.





4. Check continuity between front display unit harness connectors 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 connectors 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.