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

A01QT1KE01

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. Remove the windshield wiper motor assembly.

      Click here

    2. Inspect the windshield wiper motor assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY Click here

    OK

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


    1. A01QO98C01
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Windshield Wiper Motor Assembly)

      Disconnect the windshield wiper motor assembly connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      A7-4 (E) - Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      A7-5 (E) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A7-2 (B) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the A7 windshield wiper motor assembly connector.

    2. Disconnect the G85 windshield wiper relay assembly connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      A7-1 (+S) - G85-1 (+SM) Always Below 1 Ω
      A7-3 (+2) - G85-11 (+2) Always Below 1 Ω
      A7-1 (+S) - Body ground Always 10 kΩ or higher
      A7-3 (+2) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      A7-3 (+S) - G85-1 (+SM) Always Below 1 Ω
      A7-4 (+2) - G85-11 (+2) Always Below 1 Ω
      A7-3 (+S) - Body ground Always 10 kΩ or higher
      A7-4 (+2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the A7 windshield wiper motor assembly connector.

    2. Disconnect the G11*1 or G62*2 windshield wiper switch assembly connector.


      • *1: for RH Side Type

      • *2: for LH Side Type

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      A7-5 (+1) - G11-3 (+1) Always Below 1 Ω
      A7-5 (+1) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      A7-1 (+1) - G11-3 (+1)*1 Always Below 1 Ω
      A7-1 (+1) - G62-2 (+1)*2 Always Below 1 Ω
      A7-1 (+1) - Body ground Always 10 kΩ or higher
      *1: for RH Side Type
      *2: for LH Side Type
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY


    1. Temporarily replace the windshield wiper motor assembly with a new or normally functioning one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK FRONT WIPER OPERATION


    1. Check the front wiper operation.

      Result
      Proceed to
      Front wiper operate normally
      Front wiper does not operate

    Front wiper operate normally

    END (WINDSHIELD WIPER MOTOR ASSEMBLY WAS DEFECTIVE)

    Front wiper does not operate

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