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, [1][2]Electrical Diagrams.

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 ACTIVE TEST
1.Select "FRONT WIPER" of IPDM E/R active test item.
2.While operating the test item, check front wiper LO/HI operation and OFF.
LO: Front wiper LO operation
HI: Front wiper HI operation
OFF: Stop the front wiper.
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 ACTIVE TEST





1.Turn the ignition switch OFF.
2.Disconnect front wiper motor.
3.Turn the ignition switch ON.
4.Select "FRONT WIPER" of IPDM E/R active test item.
5.While operating the test item, check voltage between IPDM E/R
harness connector and ground.





Is the measurement normal?
YES- Replace front wiper motor. Service and Repair.
NO- Replace IPDM E/R. Service and Repair.

5. CHECK FRONT WIPER REQUEST SIGNAL INPUT

CONSULT 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.While 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)

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.