Diagnosis Procedure

1. Turn ignition switch OFF.
2. Disconnect door mirror (driver side) connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror (driver side) harness connector and ground.

   (+)		(-)	Condition		Voltage (V) (Approx.)
   Door mirror (driver side)
   Connector	Terminal
   D3	7	Ground	Rear window defogger switch	ON	Battery voltage
   				OFF	0

Is the inspection result normal?

YES

GO TO 4.

NO

GO TO 2.

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

   (+)		(-)	Condition		Voltage (V) (Approx.)
   Fuse block (J/B)
   Connector	Terminal
   M3	10C	Ground	Rear window defogger switch	ON	Battery voltage
   				OFF	0

Is the inspection result normal?

YES

GO TO 3.

NO

Replace fuse block (J/B).

1. Turn ignition switch OFF.
2. Check continuity between fuse block (J/B) harness connector and door mirror (driver side) harness connector.

   Fuse block (J/B)		Door mirror (driver side)		Continuity
   Connector	Terminal	Connector	Terminal
   M3	10C	D3	7	Existed

3. Check continuity between fuse block (J/B) harness connector and ground.

   Fuse block (J/B)		Ground	Continuity
   Connector	Terminal
   M3	10C	Ground	Not existed

Is the inspection result normal?

YES

GO TO 6.

NO

Repair or replace harness.

1. Turn ignition switch OFF.
2. Check continuity between door mirror (driver side) harness connector and ground.

   Door mirror (driver side)		Ground	Continuity
   Connector	Terminal
   D3	19	Ground	Existed

Is the inspection result normal?

YES

GO TO 5.

NO

Repair or replace harness.

Check driver side door mirror defogger.

Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 6.

NO

Replace door mirror (driver side). Refer to Removal and Installation .

Check intermittent incident.

Refer to Intermittent Incident .

Is the inspection result normal?

INSPECTION END.