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Inspection Procedure

  1. CHECK WASHER MOTOR (OPERATION) 
    1. Check that the front washer operates (See WASHER MOTOR CIRCUIT ).

      OK: Washer function is normal. 

    NG: GO TO WIPER AND WASHER SYSTEM  (See WASHER MOTOR CIRCUIT )

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - WINDSHIELD WIPER SWITCH) 
    1. Disconnect the E86 distance control ECU connector.
    2. Disconnect the E15 windshield wiper switch connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E86-3 (WASH) - E15-3 (WF) Always Below 1 Ω
      E15-3 (WF) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 1: Identifying E15 Windshield Wiper Switch And E86 Distance Control ECU Connectors
    G05760427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (See PROBLEM SYMPTOMS TABLE  )