WIPER AND WASHER SYSTEM Front Wiper Motor Circuit

DESCRIPTION

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

WIRING DIAGRAM

A005BLHE17

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. A0059WWE68
      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 a auxiliary battery positive (+) lead to terminal 1 (+1) and a negative (-) lead to terminal 2 (E), and check that the motor operates at low speed.

        OK
        Motor operates at low speed (LO).

      3. Check the HI operation.

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

        OK
        Motor operates at high speed (HI).
    2. A0059WWE82
      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 3 (+1) and a negative (-) lead to terminal 2 (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 5 (+2) and a negative (-) lead to terminal 2 (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
        A35-3 (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
        A35-2 (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
        A35-1 (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
        A35-2 (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 L146 windshield wiper relay assembly connector and L48 windshield wiper switch assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A35-1 (+1) - L48-3 (+1) Always Below 1 Ω
        A35-1 (+1) - Body ground Always 10 kΩ or higher
        A35-4 (+2) - L146-11 (+2) Always Below 1 Ω
        A35-4 (+2) - L48-4 (+2) Always Below 1 Ω
        A35-4 (+2) - Body ground Always 10 kΩ or higher
        A35-5 (+S) - L146-1 (+SM) Always Below 1 Ω
        A35-5 (+S) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the L146 windshield wiper relay assembly connector and L48 windshield wiper switch assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A35-3 (+1) - L48-3 (+1) Always Below 1 Ω
        A35-3 (+1) - Body ground Always 10 kΩ or higher
        A35-5 (+2) - L146-11 (+2) Always Below 1 Ω
        A35-5 (+2) - L48-4 (+2) Always Below 1 Ω
        A35-5 (+2) - Body ground Always 10 kΩ or higher
        A35-4 (+S) - L146-1 (+SM) Always Below 1 Ω
        A35-4 (+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