Front Wiper Does Not Return to Stop Position

FRONT WIPER AND WASHER SYSTEM


Front Wiper Does Not Return to Stop Position (After Front Wiper Operate for 10 Seconds, They Stop for 20 Seconds, and After Repeating the Operation Five Times, They Become Inoperative)


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 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, LO) is operating.





OK or NG
OK - Replace IPDM E/R. Service and Repair.
NG - GO TO 3.
3.CHECK FRONT WIPER AUTO STOP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front wiper motor 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 front wiper motor. Disassembly and Assembly of Front Wiper Drive Assembly.
NG - Repair harness or connector.