Wiper Deicer Relay

WIPER DEICER RELAY





Component Function Check
1.CHECK WIPER DEICER RELAY POWER SUPPLY CIRCUIT
1. Select Active Test ("REAR DEFOGGER") mode of "BCM" using CONSULT-III.
2. Touch "ON".
3. Check that the front window heating wire is getting warmer.
Is the inspection result normal?
YES - Wiper deicer relay power supply circuit function is OK.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK WIPER DEICER CIRCUIT 1
1. Turn ignition switch ON.
2. Check voltage between wiper deicer relay harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK WIPER DEICER CIRCUIT 2
1. Turn ignition switch OFF.
2. Disconnect wiper deicer relay and IPDM E/R connector.
3. Check continuity between wiper deicer relay terminal connector and IPDM E/R harness connector.





Is the inspection result normal?
YES - GO TO 6.
NO - Repair or replace harness.
3.CHECK WIPER DEICER CIRCUIT 3
Check voltage between wiper deicer relay harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness.
4.CHECK WIPER DEICER RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect wiper deicer relay connector.
3. Check continuity between wiper deicer relay terminal connector and ground.





Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace harness.
5.CHECK WIPER DEICER RELAY
Check wiper deicer relay. SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 6.
NO - Replace wiper deicer relay.
6.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Intermittent Incident.
- INSPECTION END




Component Inspection
1.CHECK WIPER DEICER RELAY
1. Turn ignition switch OFF.
2. Disconnect wiper deicer relay.
3. Check wiper deicer relay.










Is the inspection result normal?
YES - INSPECTION END
NO - Replace wiper deicer relay.