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, refer to {LINK_TO:0000000007986997}, "Wiring Diagram - With Rear View Camera Washer
Control System".

1. CHECK WIPER RELAY OPERATION

IPDM E/R AUTO ACTIVE TEST
1.Start IPDM E/R auto active test. Refer to "Diagnosis Description" 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 that front wiper LO/HI operation and OFF.

Lo: Front wiper LO operation
Hi: Front wiper HI operation
Off: Stop the front wiper.

is the inspection result 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 front wiper motor fuse 30A (No. 41, 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 E25 and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace the harness or connectors.

4. CHECK FRONT WIPER MOTOR OUTPUT VOLTAGE

CONSULT 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 E18 and ground.





Is the inspection result normal?
YES LO circuit-Refer to "Diagnosis Procedure" Front Wiper Motor LO Circuit.
YES HI circuit-Refer to "Diagnosis Procedure" Front Wiper Motor HI Circuit.
NO- Replace IPDM E/R. Refer to "Removal and Installation" 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.With operating the front wiper switch, check the monitor status.





Is the status of item normal?
YES- Replace IPDM E/R. Refer to "Removal and Installation" 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). Refer to "COMBINATION SWITCH READING SYSTEM : System Description" System Description.
Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace the malfunctioning parts.