Description
The front wiper does not operate under any operation conditions.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to WW "Wiring Diagram".
1. CHECK WIPER RELAY OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Start IPDM E/R auto active test. Refer to PCS "CONSULT Function (IPDM E/R)" or PCS "CONSULT Function (IPDM E/R)".
2. Check that the front wiper operates on LO and HI operation.
CONSULT ACTIVE TEST
1. Select FR WIPER of BCM (WIPER) active test item.
2. Check front wiper operation.
LO : Front wiper LO operation
HI : Front wiper HI operation
OFF : Front wiper stop
Is the inspection result normal?
YES >> GO TO 5
NO >> GO TO 2
2. CHECK FRONT WIPER MOTOR FUSE
Refer to WW "Diagnosis Procedure".
Is the fuse blown?
YES >> Replace the fuse after repairing the affected circuit.
NO >> GO TO 3
3. CHECK FRONT WIPER MOTOR GROUND CIRCUIT
Refer to WW "Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK FRONT WIPER MOTOR OUTPUT VOLTAGE
1. Turn the ignition switch ON.
2. With CONSULT, select FRONT WIPER of IPDM E/R ACTIVE TEST item.
3. Check voltage between IPDM E/R harness connector and ground while wipers are operating.
Is the inspection result normal?
YES >> Replace front wiper motor. Refer to WW "WIPER DRIVE ASSEMBLY : Removal and Installation".
NO >> Replace IPDM E/R. Refer to PCS "Removal and Installation".
5. CHECK FRONT WIPER REQUEST SIGNAL INPUT
1. With CONSULT, select FR WIP REQ in DATA MONITOR of IPDM E/R.
2. Switch the front wiper switch to HI and LO.
3. Check the status of FR WIP REQ while operating the switch.
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS "Removal and Installation".
NO >> GO TO 6
6. CHECK COMBINATION SWITCH (WIPER AND WASHER SWITCH)
Check combination switch (wiper and washer switch). Refer to BCS "Symptom Table".
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS "Removal and Installation".
NO >> Repair or replace the applicable parts.