WIPER AND WASHER SYSTEM Rear Wiper Motor Circuit

DESCRIPTION

The No. 2 main body ECU controls the rear wiper motor.

WIRING DIAGRAM

A01EQBRE01

INSPECTION PROCEDURE

PROCEDURE


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


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

      Note

      When a Body No. 4 (No. 2 main body ECU) related front wiper switch is on, Active Test items related to the front wiper switch are prohibited (double operation prohibition). Check that the front wiper switches are off before performing Active Test.

      Body No. 4
      Item Test Details Control Range Diagnostic Note
      R Wiper (LO) Rear wiper motor LO operation ON / OFF -
      OK
      Rear wiper motor operates.

    NG

    INSPECT REAR WIPER MOTOR Click here

    OK

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

  2. INSPECT REAR WIPER MOTOR


    1. A01EP6KE01

      Remove the rear wiper motor Click here.

    2. Apply battery voltage to the rear wiper motor connector and check if the rear wiper motor operates.

      OK
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 3 (+1)

      Battery negative (-) → Terminal 4 (E)

      		 Motor operates

    NG

    REPLACE REAR WIPER MOTOR Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (REAR WIPER MOTOR - NO. 2 MAIN BODY ECU AND BODY GROUND)


    1. A01ENIKE01

      Disconnect the S6 motor connector.

    2. Disconnect the L33 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      S6-2 (B) - L33-3 (W) Always Below 1 Ω
      S6-3 (+1) - L33-2 (RWLM)
      S6-1 (S) - L33-1 (RWSM)
      S6-4 (E) - Body ground
      S6-2 (B) - Body ground Always 10 kΩ or higher
      S6-3 (+1) - Body ground
      S6-1 (S) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE NO. 2 MAIN BODY ECU Click here