WIPER AND WASHER SYSTEM Front Wiper Motor Circuit

DESCRIPTION

The front controller controls the wiper motor.

WIRING DIAGRAM

A01H297E02

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FRONT WIPER MOTOR)


    1. Select the Active Test, use the intelligent tester to generate a control command, and then check the front wiper motor.

      Note

      When a Body No. 5 (front controller) related vehicle switch is ON, Active Test items related to the vehicle switch are prohibited (double operation prohibition). Check that the vehicle switches are OFF before performing Active Test.

      Body No. 5:
      Item Test Details Control Range Diagnostic Note
      Wiper Mot (HI) Front wiper motor HI operation ON / OFF -
      Wiper Mot (LO) Front wiper motor LO operation ON / OFF -
      OK
      Front wiper motor operates.

    NG

    INSPECT FRONT WIPER MOTOR Click here

    OK

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  2. INSPECT FRONT WIPER MOTOR


    1. A01GY3EE01

      Remove the front wiper motor Click here.

    2. Apply battery voltage to the front wiper motor and check the speed of the front wiper motor.

      OK
      for LHD
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 1 (+1)

      Battery negative (-) → Terminal 5 (E)

      		 Motor operates at low speed

      Battery positive (+) → Terminal 4 (+2)

      Battery negative (-) → Terminal 5 (E)

      		 Motor operates at high speed

    3. Apply battery voltage to the front wiper motor and check the speed of the front wiper motor.

      OK
      for RHD
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 5 (+1)

      Battery negative (-) → Terminal 4 (E)

      		 Motor operates at low speed

      Battery positive (+) → Terminal 3 (+2)

      Battery negative (-) → Terminal 4 (E)

      		 Motor operates at high speed

    NG

    REPLACE FRONT WIPER MOTOR Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (FRONT WIPER MOTOR - FRONT CONTROLLER AND BODY GROUND)


    1. A01GZ8PE05

      Disconnect the A32 motor connector.

    2. Disconnect the A51 ECU connector.

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

      Standard resistance
      for LHD:
      Tester Connection Condition Specified Condition
      A32-2 (B) - A51-2 (WIG) Always Below 1 Ω
      A32-1 (+1) - A51-8 (S/S)
      A32-4 (+2) - A51-9 (+2)
      A32-3 (+S) - A51-1 (S/M)
      A32-5 (E) - Body ground
      A32-3 (+S) - Body ground Always 10 kΩ or higher
      A32-2 (B) - Body ground
      A32-4 (+2) - Body ground
      A32-1 (+1) - Body ground
      for RHD:
      Tester Connection Condition Specified Condition
      A32-2 (B) - A51-2 (WIG) Always Below 1 Ω
      A32-5 (+1) - A51-8 (S/S)
      A32-3 (+2) - A51-9 (+2)
      A32-1 (+S) - A51-1 (S/M)
      A32-4 (E) - Body ground
      A32-1 (+S) - Body ground Always 10 kΩ or higher
      A32-2 (B) - Body ground
      A32-3 (+2) - Body ground
      A32-5 (+1) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE FRONT CONTROLLER