Front Wiper Does Not Operate

FRONT WIPER DOES NOT OPERATE

Description

The front wiper does not operate under any operation conditions.


Diagnosis Procedure


1. CHECK WIPER RELAY OPERATION

IPDM E/R AUTO ACTIVE TEST
1.Start IPDM E/R auto active test. Wiper.
2.Check that the front wiper operates at the LO/HI operation.
CONSULT ACTIVE TEST
1.Turn ignition switch ON.
2.Select "FRONT WIPER" of IPDM E/R active test item.
3.With operating the test item, check front wiper operation.
Lo: Front wiper LO operation


Hi: Front wiper HI operation
Off: Stop the front wiper.
Is the inspection result normal?
YES- GO TO 6.
NO- GO TO 2.

2. CHECK FRONT WIPER MOTOR FUSE

Check front wiper motor fuse. Wiper And Washer Fuse.
Is the inspection result normal?
YES- GO TO 3.
NO- Replace the blown fuse after repairing the affected circuit if a fuse is blown.

3. CHECK FRONT WIPER MOTOR INPUT VOLTAGE

CONSULT ACTIVE TEST
1.Turn ignition switch OFF.
2.Disconnect front wiper motor connector.
3.Turn ignition switch ON.
4.Select "FRONT WIPER" of IPDM E/R active test item.
5.With operating the test item, check voltage between front wiper motor harness connector and ground.





Is the inspection result normal?
YES- Replace front wiper motor.
NO- GO TO 4.

4. CHECK FRONT WIPER MOTOR (HI/LO) CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect wiper reverse relay.
3.Check continuity between front wiper motor harness connector and wiper reverse relay harness connector.





4.Check continuity between front wiper motor harness connector and ground.





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

5. CHECK WIPER REVERSE RELAY

Check wiper reverse relay Wiper Reverse Relay Circuit.
Is the inspection result normal?
YES- Replace IPDM E/R.
NO- Replace wiper reverse relay.

6. CHECK FRONT WIPER REQUEST SIGNAL INPUT

CONSULT DATA MONITOR
1.Select "FR WIP REQ" of IPDM E/R data monitor item.
2.Switch the front wiper switch to HI and LO.
3.With operating the front wiper switch, check the status of "FR WIP REQ".





Is the inspection result normal?
YES- Replace IPDM E/R.
NO- GO TO 7.

7. CHECK COMBINATION SWITCH

Perform the inspection of the combination switch. Symptom Related Diagnostic Procedures.
Is combination switch normal?
YES- Replace BCM. Service and Repair.
NO- Repair or replace the applicable parts.