Diagnosis Procedure

FRONT WIPER DOES NOT OPERATE


Diagnosis Procedure

1. CHECK WIPER RELAY OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Start IPDM E/R auto active test. Refer to System 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 front wiper operation.

LO : Front wiper LO operation
HI : Front wiper HI operation
OFF : Stop the front wiper.

Is front wiper operation normal?
YES - GO TO 5
NO - GO TO 2
2. CHECK FRONT WIPER MOTOR FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuse is not blown.





Is the fuse blown?
YES - Replace the fuse after repairing the applicable circuit.
NO - GO TO 3
3. CHECK FRONT WIPER MOTOR GROUND 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 value normal?
YES - Replace front wiper motor. Refer to Service and Repair.
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 status of "FR WIP REQ".





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 Symptom Related Diagnostic Procedures.
Is combination switch normal?
YES - Replace BCM. Refer to Service and Repair.
NO - Repair or replace the applicable parts.