Front Wiper Does Not Operate

FRONT WIPER DOES NOT OPERATE


Description

The front wiper does not operate under any operation conditions





FRONT WIPER DOES NOT OPERATE


Diagnosis Procedure

Regarding Wiring Diagram information, refer to [1][2]Electrical Diagrams or .
1. CHECK WIPER RELAY OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Start IPDM E/R auto active test. Refer to 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. Turn the ignition switch OFF.
2. Disconnect front wiper motor.
3. 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 OFF.
2. Turn the ignition switch ON.
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.






Is the measurement normal?
YES LO circuit-Refer to Diagnosis Procedure.
YES HI circuit-Refer to Diagnosis Procedure.
NO - Replace IPDM E/R. Refer to 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. Refer to Service and Repair.
NO - GO TO 6
6. CHECK COMBINATION SWITCH
1. Perform the inspection of the combination switch. Refer to System Description.
Is combination switch normal?
YES - Replace BCM. Refer to BCM.
NO - Repair or replace the malfunctioning parts.