WIPER AND WASHER SYSTEM Front Wiper Motor Circuit

DESCRIPTION

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

WIRING DIAGRAM

A0040TPE03

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY


    1. A0043Q0E03
      Text in Illustration
      *a

      Component without harness connected

      (Windshield Wiper Motor Assembly)

      for LHD:


      1. Remove the windshield wiper motor assembly Click here.

      2. Check the LO 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 (LO).

      3. Check the HI 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 (HI).
    2. A0043Q0E04
      Text in Illustration
      *a

      Component without harness connected

      (Windshield Wiper Motor Assembly)

      for RHD:


      1. Remove the windshield wiper motor assembly Click here.

      2. Check the LO 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 (LO).

      3. Check the HI 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 (HI).

    NG

    REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - IG1 NO. 2 RELAY AND BODY GROUND)


    1. for LHD:


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

        Standard Voltage
        Tester Connection Condition Specified Condition
        A33-2 (B) - Body ground Power switch on (IG) 11 to 14 V

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A33-5 (E) - Body ground Always Below 1 Ω

    2. for RHD:


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

        Standard Voltage
        Tester Connection Condition Specified Condition
        A33-2 (B) - Body ground Power switch on (IG) 11 to 14 V

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A33-4 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. for LHD:


      1. Disconnect the L63 windshield wiper relay assembly connector.

      2. Disconnect the L38 windshield wiper switch assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A33-1 (+1) - L63-2 (+1) Always Below 1 Ω
        A33-1 (+1) - Body ground Always 10 kΩ or higher
        A33-4 (+2) - L63-3 (+2) Always Below 1 Ω
        A33-4 (+2) - L38-4 (+2) Always Below 1 Ω
        A33-4 (+2) - Body ground Always 10 kΩ or higher
        A33-3 (+S) - L63-10 (+SM) Always Below 1 Ω
        A33-3 (+S) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the L63 windshield wiper relay assembly connector.

      2. Disconnect the L38 windshield wiper switch assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A33-5 (+1) - L63-2 (+1) Always Below 1 Ω
        A33-5 (+1) - Body ground Always 10 kΩ or higher
        A33-3 (+2) - L63-3 (+2) Always Below 1 Ω
        A33-3 (+2) - L38-4 (+2) Always Below 1 Ω
        A33-3 (+2) - Body ground Always 10 kΩ or higher
        A33-1 (+S) - L63-10 (+SM) Always Below 1 Ω
        A33-1 (+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