WIPER AND WASHER SYSTEM Front Wiper Motor Circuit

DESCRIPTION

The windshield wiper relay assembly controls the windshield wiper motor assembly.

WIRING DIAGRAM

A003WN0E07

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY


    1. for LHD:


      1. Remove the windshield wiper motor assembly Click here.

      2. A003X5CE63
        Text in Illustration
        *a

        Component without harness connected

        (Windshield Wiper Motor Assembly)

        Check low speed operation.

        Connect an auxiliary battery positive (+) lead to terminal 5 (+1) and a negative (-) lead to terminal 4 (E), and check that the motor operates at low speed.

        OK
        Motor operates at low speed.

      3. Check high speed operation.

        Connect an auxiliary battery positive (+) lead to terminal 3 (+2) and a negative (-) lead to terminal 4 (E), and check that the motor operates at high speed.

        OK
        Motor operates at high speed.

    2. for RHD:


      1. Remove the windshield wiper motor assembly Click here.

      2. A003X5CE64
        Text in Illustration
        *a

        Component without harness connected

        (Windshield Wiper Motor Assembly)

        Check low speed operation.

        Connect an auxiliary battery positive (+) lead to terminal 1 (+1) and a negative (-) lead to terminal 5 (E), and check that the motor operates at low speed.

        OK
        Motor operates at low speed.

      3. Check high speed operation.

        Connect an auxiliary battery positive (+) lead to terminal 4 (+2) and a negative (-) lead to terminal 5 (E), and check that the motor operates at high speed.

        OK
        Motor operates at high speed.

    NG

    REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - BATTERY AND BODY GROUND)


    1. for LHD:


      1. A003XFFE20
        Text in Illustration
        *a

        Front view of wire harness connector

        (to Windshield Wiper Motor Assembly)

        Disconnect the A32 windshield wiper motor connector.

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

        Standard Voltage
        Tester Connection Condition Specified Condition
        A32-2 (B) - Body ground Power switch on (IG) 11 to 14 V

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A32-4 (E) - Body ground Always Below 1 Ω

    2. for RHD:


      1. A003XFFE21
        Text in Illustration
        *a

        Front view of wire harness connector

        (to Windshield Wiper Motor Assembly)

        Disconnect the A32 windshield wiper motor connector.

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

        Standard Voltage
        Tester Connection Condition Specified Condition
        A32-2 (B) - Body ground Power switch on (IG) 11 to 14 V

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A32-5 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR - WINDSHIELD WIPER RELAY)


    1. for LHD:


      1. Disconnect the H75 windshield wiper relay assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A32-5 (+1) - H75-2 (+1) Always Below 1 Ω
        A32-5 (+1) - Body ground Always 10 kΩ or higher
        A32-3 (+2) - H75-3 (+2) Always Below 1 Ω
        A32-3 (+2) - Body ground Always 10 kΩ or higher
        A32-1 (+S) - H75-10 (+SM) Always Below 1 Ω
        A32-1 (+S) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the H75 windshield wiper relay assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A32-1 (+1) - H75-2 (+1) Always Below 1 Ω
        A32-1 (+1) - Body ground Always 10 kΩ or higher
        A32-4 (+2) - H75-3 (+2) Always Below 1 Ω
        A32-4 (+2) - Body ground Always 10 kΩ or higher
        A32-3 (+S) - H75-10 (+SM) Always Below 1 Ω
        A32-3 (+S) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here