WIPER AND WASHER SYSTEM(w/ Rain Sensor) Front Wiper Motor Circuit

DESCRIPTION

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

WIRING DIAGRAM

A005HTYE01

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY


    1. for LHD:


      1. Remove the windshield wiper motor assembly Click here.

      2. A005MFWE59
        Text in Illustration
        *a

        Component without harness connected

        (Windshield Wiper Motor Assembly)

        Check LO operation.

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

        OK
        Motor operates at low speed (LO).

      3. Check HI operation.

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

        OK
        Motor operates at high speed (HI).

    2. for RHD:


      1. Remove the windshield wiper motor assembly Click here.

      2. A005MFWE60
        Text in Illustration
        *a

        Component without harness connected

        (Windshield Wiper Motor Assembly)

        Check LO operation.

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

        OK
        Motor operates at low speed (LO).

      3. Check HI operation.

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

        OK
        Motor operates at high speed (HI).

    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. A005H60E02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to Windshield Wiper Motor Assembly)

        Disconnect the A15 windshield wiper motor connector.

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

        Standard Voltage
        Tester Connection Switch Condition Specified Condition
        A15-2 (B) - Body ground Ignition switch ON 11 to 14 V

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A15-4 (E) - Body ground Always Below 1 Ω

    2. for RHD:


      1. A005JB7E02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to Windshield Wiper Motor Assembly)

        Disconnect the A15 windshield wiper motor connector.

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

        Standard Voltage
        Tester Connection Switch Condition Specified Condition
        A15-2 (B) - Body ground Ignition switch ON 11 to 14 V

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A15-5 (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 SWITCH AND RELAY)


    1. for LHD:


      1. Disconnect the F12 windshield wiper switch assembly connector.

      2. Disconnect the F72 windshield wiper relay assembly connector.

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

        Standard Resistance (Check for Open)
        Tester Connection Condition Specified Condition
        F12-3 (+1) - A15-5 (+1) Always Below 1 Ω
        F12-4 (+2) - A15-3 (+2) Always Below 1 Ω
        F72-11 (+2) - A15-3 (+2) Always Below 1 Ω
        F12-4 (+2) - F72-11 (+2) Always Below 1 Ω
        F72-1 (+SM) - A15-1 (+S) Always Below 1 Ω
        F12-1 (+S) - F72-10 (+1) Always Below 1 Ω
        Standard Resistance (Check for Short)
        Tester Connection Condition Specified Condition
        A15-5 (+1) - Body ground Always 10 kΩ or higher
        A15-3 (+2) - Body ground Always 10 kΩ or higher
        A15-1 (+S) - Body ground Always 10 kΩ or higher

    2. for RHD


      1. Disconnect the F12 windshield wiper switch assembly connector.

      2. Disconnect the F72 windshield wiper relay assembly connector.

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

        Standard Resistance (Check for Open)
        Tester Connection Condition Specified Condition
        F12-3 (+1) - A15-1 (+1) Always Below 1 Ω
        F12-4 (+2) - A15-4 (+2) Always Below 1 Ω
        F72-11 (+2) - A15-4 (+2) Always Below 1 Ω
        F12-4 (+2) - F72-11 (+2) Always Below 1 Ω
        F72-1 (+SM) - A15-3 (+S) Always Below 1 Ω
        F12-1 (+S) - F72-10 (+1) Always Below 1 Ω
        Standard Resistance (Check for Short)
        Tester Connection Condition Specified Condition
        A15-1 (+1) - Body ground Always 10 kΩ or higher
        A15-4 (+2) - Body ground Always 10 kΩ or higher
        A15-3 (+S) - Body ground Always 10 kΩ or higher

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR