WIPER AND WASHER SYSTEM Washer Motor Circuit

DESCRIPTION

The front controller receives washer switch condition (on or off) information from the windshield wiper switch assembly, and operates the WASH relay.

WIRING DIAGRAM

A0161SJE01

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Body No. 5 / Active Test.

    5. Check the operation.

      Body No. 5 (Front Controller)
      Tester Display Test Part Control Range Diagnostic Note
      Washer Motor Operation Washer motor OFF/ON -
      OK
      Washer motor operates.

    NG

    INSPECT WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY Click here

    OK

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  2. INSPECT WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY

    Tech Tips

    The following check should be performed with the windshield washer motor and pump assembly installed to the washer jar.


    1. Fill the washer jar with washer fluid.

    2. A015YZSE01

      Connect a positive (+) battery lead to terminal 1 of the washer motor, and a negative (-) battery lead to terminal 2.

    3. Check that washer fluid flows from the washer jar.

      OK
      Washer fluid is pumped from the washer jar.

    NG

    REPLACE WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY - BODY GROUND)


    1. A0162CZE01

      Disconnect the A4 windshield washer motor and pump assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A4-2 - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS OR CONNECTOR (FRONT CONTROLLER - WINDSHIELD WIPER MOTOR AND PUMP ASSEMBLY)


    1. A01634SE01

      Disconnect the 2F front controller connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A4-1 - 2F-4 Always Below 1 Ω
      A4-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (BATTERY - FRONT CONTROLLER)


    1. A015Z25E05

      Disconnect the 2E front controller connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      2E-1 - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE FRONT CONTROLLER (MULTIPLEX NETWORK BODY ECU)