Diagnosis Procedure

REAR WINDOW DEFOGGER RELAY


Diagnosis Procedure

1.CHECK FUSE
1. Turn ignition switch off.
2. Check the following.
- 10A fuse [No.3, located in fuse block (J/B)]
Is the inspection result normal?
YES - GO TO 2.
NO - Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.CHECK REAR WINDOW DEFOGGER CIRCUIT 1
1. Turn ignition switch ON.
2. Check voltage between BCM harness connector and ground.





Is the inspection result normal?
YES - GO TO 6.
NO - GO TO 3.
3.CHECK REAR WINDOW DEFOGGER CIRCUIT 2
1. Turn ignition switch OFF.
2. Disconnect BCM connector and rear window defogger relay.
3. Check continuity between BCM harness connector and fuse block (J/B) harness connector.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness.
4.CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay. Component Inspection
Is the inspection result normal?
YES - GO TO 5.
NO - Replace rear window defogger relay.
5.CHECK FUSE BLOCK (J/B)
1. Install the rear window defogger relay.
2. Turn ignition switch ON.
3. Check voltage between fuse block (J/B) (fuse block side) and ground.





Is the inspection result normal?
YES - GO TO 6.
NO - Repair or replace fuse block (J/B).
6.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Intermittent Incident
- INSPECTION END