Rear Window Defogger

REAR WINDOW DEFOGGER

Component Function Check


1. CHECK REAR WINDOW DEFOGGER

Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch
ON.
Is the inspection result normal?
YES- Rear window defogger is OK.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect rear window defogger connector.
3.Turn ignition switch ON.
4.Check voltage between rear window defogger harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- GO TO 4.

2. CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between rear window defogger harness connector and ground.





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

3. CHECK FILAMENT

Check filament.
Refer to "Inspection and Repair" Filament.
Is the inspection result normal?
YES- GO TO 5.
NO- Repair filament.

4. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect IPDM E/R and rear window defogger connectors.
3.Check continuity between IPDM E/R harness connector and rear window defogger harness connector.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness.

5. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident
- INSPECTION END