Entertainment Systems: Testing and Inspection

POWER SUPPLY AND GROUND CIRCUIT:_:MULTI DISPLAY UNIT





Diagnosis Procedure
1.CHECK FUSES
Check if any of the following fuses are blown:





Is the check result normal?
YES - GO TO 2.
NO - Replace fuse with a new one after repairing the applicable circuit.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between multi display unit harness connector and ground.





Is the check result normal?
YES - GO TO 3.
NO - Repair harness between fuse and multi display unit.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Remove multi display unit connector.
3. Check for continuity between multi display unit harness connector and ground.





Is the check result normal?
YES - INSPECTION END
NO - Repair the harnesses or connectors.