WIPER AND WASHER SYSTEM Front Wiper Motor Circuit

DESCRIPTION

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

WIRING DIAGRAM


  1. for LHD

    A002BNAE01

  2. for RHD

    A002BNAE02

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - IG CIRCUIT)


    1. Disconnect the A32 windshield wiper motor assembly 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 Ignition switch ON 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Click here

    OK

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


    1. for LHD:


      1. 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. 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
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY


    1. A0029MZC01
      *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 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 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.

        OK
        Motor operates at high speed (HI).
    2. A0029MZC02
      *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 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.

        OK
        Motor operates at low speed (LO).

      3. Check the 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.

        OK
        Motor operates at high speed (HI).
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY Click here

    OK

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


    1. for LHD:


      1. Disconnect the F79 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 (+S) - F79-1 (+SM) Always Below 1 Ω
        A32-1 (+S) or F79-1 (+SM) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the F79 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
        A32-3 (+S) - F79-1 (+SM) Always Below 1 Ω
        A32-3 (+S) or F79-1 (+SM) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. for LHD:


      1. Disconnect the F64 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
        A32-3 (+2) - F79-11 (+2) Always Below 1 Ω
        A32-3 (+2) or F79-11 (+2) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the F64 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
        A32-4 (+2) - F79-11 (+2) Always Below 1 Ω
        A32-4 (+2) or F79-11 (+2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - WINDSHIELD WIPER SWITCH ASSEMBLY)


    1. for LHD:


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A32-5 (+1) - F64-3 (+1) Always Below 1 Ω
        A32-3 (+2) - F64-4 (+2) Always Below 1 Ω
        A32-5 (+1) or F64-3 (+1) - Body ground Always 10 kΩ or higher
        A32-3 (+2) or F64-4 (+2) - Body ground Always 10 kΩ or higher

    2. for RHD:


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        A32-1 (+1) - F64-2 (+1) Always Below 1 Ω
        A32-4 (+2) - F64-1 (+2) Always Below 1 Ω
        A32-1 (+1) or F64-2 (+1) - Body ground Always 10 kΩ or higher
        A32-4 (+2) or F64-4 (+2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the 4F instrument panel junction block assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A32-2 (B) - 4F-1 Always Below 1 Ω
      A32-2 (B) or 4F-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR