VCM

POWER SUPPLY AND GROUND CIRCUIT

VCM : Diagnosis Procedure


1. CHECK FUSE

Check that the following fuse is not fusing.





Is the fuse fusing?
YES- Replace the fuse after repairing the applicable circuit.
NO- GO TO 2.

2. CHECK VCM GROUND CIRCUIT

1.Turn power switch OFF.
2.Disconnect VCM harness connector.
3.Check the continuity between VCM harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace error-detected parts.

3. CHECK 12V BATTERY POWER SUPPLY

Check the voltage between VCM harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 4.

4. CHECK BATTERY POWER SUPPLY CIRCUIT

1.Check the continuity between VCM harness connector and fuse terminal.





2.Also check harness for short to ground.
Is the inspection result normal?
YES- Check power supply circuit for battery power supply.
NO- Repair or replace error-detected parts.

5. CHECK POWER ON POWER SUPPLY

1.Turn power switch ON.
2.Check the voltage between VCM harness connector and ground.





Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 6.

6. CHECK POWER ON POWER SUPPLY CIRCUIT

1.Turn power switch OFF.
2.Disconnect IPDM E/R harness connector.
3.Check the continuity between VCM harness connector and IPDM E/R harness connector.





4.Also check harness for short to ground.
Is the inspection result normal?
YES- Replace IPDM E/R. Refer to "Removal and Installation" Removal And Installation.
NO- Repair or replace error-detected parts.