TEL Adapter Unit

POWER SUPPLY AND GROUND CIRCUIT


TEL ADAPTER UNIT : Diagnosis Procedure

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 TEL adapter unit harness connector and ground.





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





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