WIPER SWITCH INSPECTION


  1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY


    1. Remove the windshield wiper switch assembly.

    2. A01EMN4E05
      Text in Illustration
      *a

      Component without harness connected

      (Windshield Wiper Switch Assembly)

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

      Standard Resistance
      Front Wiper Switch
      Tester Connection Condition Specified Condition
      D40-1 (+S) - D40-3 (+1) OFF Below 1 Ω
      INT
      D40-2 (+B) - D40-3 (+1) MIST
      LO
      D40-2 (+B) - D40-4 (+2) HI
      Front Washer Switch
      Tester Connection Condition Specified Condition
      D39-2 (EW) - D39-3 (WF) ON Below 1 Ω
      OFF 10 kΩ or higher
      Rear Wiper Switch
      Tester Connection Condition Specified Condition
      D39-6 (C1R) - D39-2 (EW) OFF 10 kΩ or higher
      D39-7 (+1R) - D39-2 (EW)
      D39-6 (C1R) - D39-2 (EW) INT Below 1 Ω
      D39-7 (+1R) - D39-2 (EW) HI Below 1 Ω
      Rear Washer Switch
      Tester Connection Condition Specified Condition
      D40-5 (WR) - D39-2 (EW) OFF 10 kΩ or higher
      D39-7 (+1R) - D39-2 (EW)
      D40-5 (WR) - D39-2 (EW) WASH Below 1 Ω
      D40-5 (WR) - D39-2 (EW) ON + WASH Below 1 Ω
      D39-7 (+1R) - D39-2 (EW)

      If the result is not as specified, replace the windshield wiper switch assembly.

    3. Install the windshield wiper switch assembly.

    4. A01EMN4E06
      Text in Illustration
      *a

      Component with harness connected

      (Windshield Wiper Switch Assembly)

      Check the intermittent operation.


      1. Connect a voltmeter positive (+) lead to terminal D40-3 (+1) and a negative (-) lead to terminal D39-2 (EW).

      2. Turn the wiper switch to the INT position.

      3. Operate the intermittent wiper and check the voltage between terminals D40-3 (+1) and D392 (EW).

        OK
        Voltage changes as shown in the illustration.
        A01EKD2E22

        If the result is not as specified, replace the windshield wiper switch assembly.