Diagnosis Procedure

The front wiper does not operate under any operation conditions.

1. CHECK WIPER RELAY OPERATION 

   IPDM E/R AUTO ACTIVE TEST

   1. Start IPDM E/R auto active test. Refer to 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. While operating the test item, check front wiper LO/HI operation and OFF.

      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 Diagnosis Procedure .

   Is the inspection result normal?

   YES

   GO TO 3

   NO

   Replace the fuse after repairing the affected circuit.

3. CHECK FRONT WIPER MOTOR GROUND CIRCUIT 

   Refer to 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.

   Terminals			FRONT WIPER	Voltage (Approx.)
   (+)		(-)
   IPDM E/R		Ground
   Connector	Terminal
   E121	32		LO	Battery voltage
   			OFF	0 V
   	35		HI	Battery voltage
   			OFF	0 V

   Is the inspection result normal?

   YES

   Replace front wiper motor. Refer to Removal and Installation .

   NO

   Replace IPDM E/R. Refer to 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.

      Data monitor	Condition	Status
      FR WIP REQ	Front wiper switch OFF	STOP
      	Front wiper switch LO	LOW
      	Front wiper switch HI	HI

   Is the inspection result normal?

   YES

   Replace IPDM E/R. Refer to Removal and Installation .

   NO

   GO TO 6

6. CHECK COMBINATION SWITCH (WIPER AND WASHER SWITCH) 

   Check combination switch (wiper and washer switch). Refer to Symptom Table .

   Is the inspection result normal?

   YES

   Replace BCM. Refer to Removal and Installation .

   NO

   Repair or replace the applicable parts.