Washer Motor Circuit

WIPER AND WASHER: WIPER AND WASHER SYSTEM: Washer Motor Circuit
- Washer Motor Circuit

DESCRIPTION

The front light ECU receives washer switch information from the front wiper switch, and operates the wash relay.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (FRONT WASHER MOTOR)

(a) Select the Active Test, use the Techstream to generate a control command, and then check the front washer motor.

NOTICE:
When a Body No. 5 (front light ECU) related vehicle switch is ON, Active Test items related to the vehicle switch are prohibited (double operation prohibition). Check that the vehicle switches are OFF before performing Active Test.

Front light ECU:





OK:

Washer motor operates.

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.

2. INSPECT FRONT WASHER MOTOR

(a) Remove the front washer motor.





(b) Apply battery voltage to the front washer motor and check the operation of the front washer motor.

OK:





NG -- REPLACE FRONT WASHER MOTOR Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (FRONT WASHER MOTOR - FRONT LIGHT ECU)

(a) Disconnect the A51 ECU connector.





(b) Disconnect the A1 motor connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE