Rear Window Defogger

REAR WINDOW DEFOGGER

Description

Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window from fogging up.


Component Function Check


1. CHECK FUNCTION

1.Perform IPDM E/R Active Test ("REAR DEFOGGER") using CONSULT.
2.Touch "ON".
3.Check that the rear window heating wire is getting warmer.
Is the inspection result normal?
YES- Rear window defogger is OK.
NO- Rear Window Defogger Relay.


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

Filament.
Is the inspection result normal?
YES- GO TO 5.
NO- Repair filament.

4. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT 1

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





4.Check continuity between condenser connector and ground.





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

5. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT 2

1.Disconnect IPDM E/R connectors.
2.Check continuity between IPDM E/R harness connector and condenser harness connector.





3.Check continuity between IPDM E/R connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace harness.

6. CHECK CONDENSER

.
Is the inspection result normal?
YES- GO TO 7.
NO- Replace condenser. Removal and Installation.

7. CHECK INTERMITTENT INCIDENT

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


Component Inspection


1. CHECK CONDENSER

1.Turn ignition switch OFF.
2.Disconnect condenser connector.
3.Check continuity between condenser connector and ground part of condenser.





4.Check continuity between condenser terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace condenser. Removal and Installation.