Front Wiper Position Signal Circuit

FRONT WIPER POSITION SIGNAL CIRCUIT

Component Function Check


1. CHECK FRONT WIPER POSITION SIGNAL

CONSULT DATA MONITOR
1.Select "WIP AUTO STOP" of IPDM E/R data monitor item.
2.Operate the front wiper.
3.With the front wiper operation, check the monitor status.





Is the inspection result normal?
YES- Front wiper position signal circuit is normal.
NO- .


Diagnosis Procedure


1. CHECK FUSE

1.Turn ignition switch OFF.
2.Check 10 A fuse, [No. 47, located in IPDM E/R].
Is the inspection result normal?
YES- GO TO 2.
NO- Replace the blown fuse after repairing the affected circuit if a fuse is blown.

2. CHECK FRONT WIPER MOTOR INPUT VOLTAGE

1.Disconnect front wiper motor connector and washer pump connector.
2.Turn ignition switch ON.
3.Check voltage between front wiper motor harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 3.

3. CHECK FRONT WIPER MOTOR POSITION SIGNAL POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect IPDM E/R connector.
3.Check continuity between IPDM E/R harness connector and front wiper motor harness connector.





4.Check continuity between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- Replace IPDM E/R.
NO- Repair or replace harness.

4. CHECK FRONT WIPER MOTOR POSITION SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect IPDM E/R connector.
3.Check continuity between IPDM E/R harness connector and front wiper motor harness connector.





4.Check continuity between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness.

5. CHECK FRONT WIPER MOTOR POSITION SIGNAL GROUND CIRCUIT

Check continuity between front wiper motor harness connector and ground.





Is the inspection result normal?
YES- Replace front wiper motor.
NO- Repair or replace harness.