Regarding Wiring Diagram information, refer to DEF "Wiring Diagram".
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror LH.
3. Turn ignition switch ON.
4. Check voltage between door mirror LH connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror LH connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DOOR MIRROR DEFOGGER LH
Check door mirror defogger LH.
Refer to DEF "Component Inspection".
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace door mirror. Refer to MIR "DOOR MIRROR ASSEMBLY : Removal and Installation".
4. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI "Intermittent Incident".
Is the inspection result normal?
YES >> Check the following.
NO >> Repair or replace the malfunctioning parts.