Total Illumination Control Unit

POWER SUPPLY AND GROUND CIRCUIT

TOTAL ILLUMINATION CONTROL UNIT : Diagnosis Procedure


1. FUSE INSPECTION

Check that the following fuses are not fusing.





Is the fuse fusing?
YES- Repair the applicable circuit. And then replace the fuse.
NO- GO TO 2.

2. CHECK POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect the total illumination control unit harness connector.
3.Check voltage between the total illumination control unit harness connector and ground.





Is the measurement value normal?
YES- GO TO 3.
NO- Repair harness or connector.

3. CHECK GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between the total illumination control unit harness connector and ground.





Does continuity exist?
YES- Power supply and ground circuit are normal.
NO- Repair harness or connector.