Both Doors Mirror Defogger Do not Operate But Rear Window Defogger Operates

BOTH DOORS MIRROR DEFOGGER DON'T OPERATE BUT REAR WINDOW DEFOGGER OPERATES

Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" [1][2]Electrical Diagrams.

1. CHECK DOOR MIRROR DEFOGGER FUSE

Check if the following fuse in fuse block (J/B) is blown.





Is the inspection result normal?
YES- GO TO 2.
NO- Replace the blown fuse after repairing the affected circuit.

2. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT

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





Is the inspection result normal?
YES- GO TO 3.
NO- Replace fuse block (J/B).

3. CHECK BOTH DOOR MIRROR DEFOGGER

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