Rear Window Defogger And Door Mirror Defogger Do Not Operate

REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER DO NOT OPERATE.

Diagnosis Procedure

Regarding Wiring Diagram information, Rear Window Defogger Coupe or Rear Window Defogger Sedan.

1. CHECK REAR WINDOW DEFOGGER SWITCH

Check rear window defogger switch.
Rear Window Defogger Switch.
Is the inspection result normal?
YES- GO TO 2
NO- Repair or replace the malfunctioning parts.

2. CHECK REAR WINDOW DEFOGGER RELAY

Check rear window defogger relay.
Rear Window Defogger Relay.
Is the inspection result normal?
YES- GO TO 3
NO- Repair or replace the malfunctioning parts.

3. CHECK REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT

Check rear window defogger power supply and ground circuit.
Rear Window Defogger Power Supply And Ground Circuit.
Is the inspection result normal?
YES- GO TO 4
NO- Repair or replace the malfunctioning parts.

4. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY

1.Turn ignition switch ON.
2.Check voltage between fuse block (J/B) connector M5 and ground.





Is the inspection result normal?
YES- GO TO 5
NO- Replace fuse block (J/B).

5. CHECK BOTH DOOR MIRROR DEFOGGER

1.Check door mirror LH. Driver Side Door Mirror Defogger.
2.Check door mirror RH. Passenger Side Door Mirror Defogger.
Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- Repair or replace the malfunctioning parts.