Check Door Mirror Defogger Power Supply Circuit

REAR WINDOW DEFOGGER


Check Door Mirror Defogger Power Supply Circuit

1.CHECK FUSE
- Check 10A fuse [No.8, located in fuse block (J/B)]

NOTE:
Refer to Locations.
OK or NG
OK - GO TO 2.
NG - If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to Schematic.
2.CHECK POWER SUPPLY CIRCUIT 1
1. Turn ignition switch ON.
2. Check voltage between fuse block (J/B) connector and ground.










OK or NG
OK - GO TO 3.
NG - Repair or replace harness.
3.CHECK POWER SUPPLY CIRCUIT 2
Check voltage between fuse block (J/B) connector and ground.










OK or NG
OK - GO TO 4.
NG - Replace fuse block (J/B).
4.CHECK DOOR MIRROR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuse block (J/B) and door mirror connector.
3. Check continuity between fuse block (J/B) connector and door mirror connector.










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





OK or NG
OK - GO TO 5.
NG - Repair or replace harness between fuse block (J/B) and malfunctioning door mirror connector.
5.CHECK GROUND CIRCUIT
Check continuity between door mirror connector and ground.










OK or NG
OK - GO TO 6.
NG - Repair or replace harness.
6.CHECK DOOR MIRROR DEFOGGER
1. Connect door mirror connector.
2. Check door mirror.










OK or NG
OK - Check condition of harness and connector.
NG - Replace malfunctioning door mirror.