Front Wiper Does Not Operate

FRONT WIPER AND WASHER SYSTEM


Front Wiper Does Not Operate


CAUTION:
During IPDM E/R fail-safe control, front wipers may not operate. Refer to System Description in "PG IPDM E/R" to make sure that it is not in fail-safe status.
1.ACTIVE TEST
With CONSULT-III
1. Select "FRONT WIPER" of IPDM E/R active test item.
2. With operating the test item, check that front wiper LO and HI operation.
Without CONSULT-III
Start up auto active test. Refer to Auto Active Test.
Does front wiper operate normally?
YES - GO TO 2.
NO - GO TO 4.
2.CHECK CIRCUIT BETWEEN COMBINATION SWITCH AND BCM
With CONSULT-III
1. Select "FR WIPER INT", "FR WIPER LOW", and "FR WIPER HI" of BCM data monitor item.
2. With operating the wiper switch, check the monitor status.
Without CONSULT-III
Refer to Component Tests and General Diagnostics.
OK or NG
OK - GO TO 3.
NG - Check combination switch (wiper switch). Refer to Component Tests and General Diagnostics.
3.CHECK CIRCUIT BETWEEN IPDM E/R AND BCM
Select "BCM" on CONSULT-III, and perform self-diagnosis for "BCM".
Displayed self-diagnosis results
NO DTC Replace BCM. Refer to Service and Repair.
CAN COMM CIRCUIT Check CAN communication line of BCM. Refer to CAN System Specification Chart.
4.CHECK CIRCUIT BETWEEN FRONT WIPER MOTOR AND FRONT WIPER REVERSE RELAY
1. Turn ignition switch OFF.
2. Disconnect front wiper motor connector.
3. Remove front wiper reverse relay.





4. Check continuity between front wiper motor harness connector
(A) and front wiper reverse relay harness connector (B).





OK or NG
OK - GO TO 5.
NG - Repair harness or connector.
5.CHECK FRONT WIPER REVERSE RELAY





1. Check continuity between front wiper reverse relay terminals.










2. Check continuity between front wiper reverse relay terminals.





OK or NG
OK - GO TO 6.
NG - Replace front wiper reverse relay.
6.CHECK FRONT WIPER CIRCUIT
1. Disconnect IPDM E/R connector.





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










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










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





OK or NG
OK - GO TO 7.
NG - Repair harness or connector.
7.CHECK IPDM E/R
With CONSULT-III
1. Connect IPDM E/R connector and front wiper motor connector.
2. Install front wiper reverse relay.
3. Select "FRONT WIPER" of IPDM E/R active test item.





4. With operating the test item, check voltage between IPDM E/R harness connector and ground.





Without CONSULT-III
1. Connect IPDM E/R connector and front wiper motor connector.
2. Install front wiper reverse relay.
3. Start up auto active test. Refer to Auto Active Test.
4. With operating the test item, check voltage between IPDM E/R harness connector and ground.





OK or NG
OK - Replace front wiper motor. Refer to Service and Repair.
NG - Replace IPDM E/R. Refer to Service and Repair.