Door Mirror Defogger Circuit Inspection

REAR WINDOW DEFOGGER


Door Mirror Defogger Circuit Inspection

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





OK or NG
OK - GO TO 2.
NG - If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK HEATED MIRROR RELAY POWER SUPPLY CIRCUIT





1. Disconnect heated mirror relay.
2. Turn ignition switch ON.
3. Check voltage between heated mirror relay connector and ground.





OK or NG
OK - GO TO 3.
NG - Repair or replace harness.
3.CHECK HEATED MIRROR RELAY GROUND CIRCUIT





1. Turn ignition switch OFF.
2. Check continuity between heated mirror relay connector E56 terminal 2 and ground.

2 - Ground : Continuity should exist.

OK or NG
OK - GO TO 4.
NG - Repair or replace harness.
4.INSPECTION OF HEATED MIRROR RELAY





Check continuity between heated mirror relay terminals 3 and 5.





OK or NG
OK - GO TO 5.
NG - Replace heated mirror relay.
5.CHECK HARNESS CONTINUITY





1. Disconnect door mirror (LH or RH).
2. Check continuity between door mirror LH or RH connector (A) and heated mirror relay connector (B).





3. Check continuity between door mirror LH or RH connector (A) and ground.





OK or NG
OK - GO TO 6.
NG - Repair or replace harness.
6.CHECK GROUND CIRCUIT





Check continuity between door mirror LH or RH connector and ground.





OK or NG
OK - Replace door mirror (LH or RH). Removal and Installation Disassembly and Assembly.
NG - Repair or replace harness.