Front Wiper Does Not Return to Stop Position When Front Wiper Motor Operates at HIGH Speed

FRONT WIPER AND WASHER SYSTEM


Front Wiper Does Not Return to Stop Position When Front Wiper Motor Operates at HIGH Speed (After Front Wiper Operate for 10 Seconds, They Stop for 20 Seconds, and After Repeating the Operation Five Times, They


CAUTION:
- When auto stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front wipers, IPDM E/R considers that front wipers are locked, and stops wiper output. That causes this symptom.
- This status can be checked by "DATA MONITOR" of "IPDM E/R" on which "WIPER PROTECTION" item shows "BLOCK".
1.CHECK FRONT WIPER STOP SIGNAL
With CONSULT-III
1. Select "WIP AUTO STOP" of IPDM E/R data monitor item.
2. Check that "WIP AUTO STOP" turns "ACT P" - "STOP P" linked with wiper HI operation.
Without CONSULT-III
GO TO 2.
OK or NG
OK - Replace IPDM E/R. Service and Repair.
NG - GO TO 2.
2.CHECK IPDM E/R





Check voltage between IPDM E/R harness connector and ground while front wiper motor is stopped and while front wiper HI is operating.





OK or NG
OK - Replace IPDM E/R. Service and Repair.
NG - GO TO 3.
3.CHECK IPDM E/R
1. Disconnect front wiper motor connector.
2. Turn ignition switch ON.





3. Check voltage between front wiper motor harness connector and ground.





OK or NG
OK - Replace front wiper motor. Disassembly and Assembly of Front Wiper Drive Assembly.
NG - GO TO 4.
4.CHECK FRONT WIPER AUTO STOP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.





3. Check continuity between IPDM E/R harness connector (A) and front wiper motor harness connector (B).





4. Check continuity between IPDM E/R harness connector (A) and
Ground.





OK or NG
OK - Replace IPDM E/R. Service and Repair.
NG - Repair harness or connector.