Front Wiper Does Not Operate

FRONT WIPER DOES NOT OPERATE





Description
The front wiper does not operate under any operation conditions




Diagnosis Procedure
Regarding Wiring Diagram information, Front Wiper And Washer System Coupe or Front Wiper And Washer System Sedan.
1. CHECK WIPER RELAY OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Start IPDM E/R auto active test. Diagnosis Description.
2. Check that the front wiper operates at the LO/HI operation.
CONSULT-III ACTIVE TEST
1. Select "FRONT WIPER" of IPDM E/R active test item.
2. While operating the test item, check that front wiper LO/HI operation and OFF.





Does the front wiper operate?
YES - GO TO 5
NO - GO TO 2
2. CHECK FRONT WIPER MOTOR FUSE
1. Turn the ignition switch OFF.
2. Check that the front wiper motor fuse 30A (No. 55, located in the IPDM E/R) is not blown.
Is the fuse blown?
YES - Replace the fuse after repairing the affected circuit.
NO - GO TO 3
3. CHECK FRONT WIPER MOTOR (GND) OPEN CIRCUIT





1. Disconnect front wiper motor.
2. Check continuity between front wiper motor harness connector and ground.





Does continuity exist?
YES - GO TO 4
NO - Repair or replace harness.
4. CHECK FRONT WIPER MOTOR OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST





1. Turn the ignition switch ON.
2. Select "FRONT WIPER" of IPDM E/R active test item.
3. With operating the test item, check voltage between IPDM E/R harness connector and ground.






Is the measurement normal?
YES LO circuit- Front Wiper Motor LO Circuit.
YES HI circuit- Front Wiper Motor HI Circuit.
NO - Replace IPDM E/R. Service and Repair.
5. CHECK FRONT WIPER REQUEST SIGNAL INPUT
CONSULT-III 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 monitor status.





Is the status of item normal?
YES - Replace IPDM E/R. Service and Repair.
NO - GO TO 6
6. CHECK COMBINATION SWITCH (WIPER AND WASHER SWITCH)
1. Perform the inspection of the combination switch (wiper and washer switch). System Description.
Is combination switch (wiper and washer switch) normal?
YES - Replace BCM. Service and Repair.
NO - Repair or replace the malfunctioning parts.