Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK WIPER RELAY OPERATION
   
   

   CONSULT ACTIVE TEST

   1. Select "FRONT WIPER" of IPDM E/R active test item.
   2. When 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 operating normally?

   YES 

   GO TO STEP 5  .

   NO 

   GO TO STEP 2  .

2. CHECK FRONT WIPER MOTOR FUSE
   
   
   1. Turn ignition switch OFF.
   2. Check the following fuse.

   Unit	Location	No.	Capacity
   Front wiper motor	IPDM E/R	41	30 A

   Is the inspection result normal?

   YES 

   GO TO STEP 3  .

   NO 

   Replace the fuse after repairing the applicable circuit.

3. CHECK FRONT WIPER MOTOR GROUND CIRCUIT
   
   

   Check front wiper motor ground circuit. Refer to DIAGNOSIS PROCEDURE .

   Is the inspection result normal?

   YES 

   GO TO STEP 4  .

   NO 

   Repair or replace harness.

4. CHECK FRONT WIPER MOTOR INPUT VOLTAGE
   
   

   CONSULT ACTIVE TEST

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

   (+)		(-)	Condition		Voltage (Approx.)
   Front wiper motor
   Connector	Terminal
   E23	1	Ground	FRONT WIPER	Lo	Battery voltage
   				Off	0 V
   	4			Hi	Battery voltage
   				Off	0 V

   Is the inspection result normal?

   YES 

   Replace front wiper motor.

   NO 

   Replace IPDM E/R.

5. CHECK FRONT WIPER REQUEST SIGNAL INPUT
   
   

   CONSULT DATA MONITOR

   1. Select "FR WIP RE" 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 RE".

      Monitor item	Condition		Monitor status
      FR WIP RE	Front wiper switch HI	On	Hi
      		Off	Stop
      	Front wiper switch LO	On	Low
      		Off	Stop

   Is the inspection result normal?

   YES 

   Replace IPDM E/R.

   NO 

   GO TO STEP 6  .

6. CHECK COMBINATION SWITCH
   
   

   Perform the inspection of the combination switch. Refer to SYMPTOM TABLE .

   Is combination switch normal?

   YES 

   Replace BCM. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace the applicable parts.