WIPER SWITCH INSPECTION

PROCEDURE


  1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY (w/ Rain Sensor)


    1. Check the front wiper switch.


      1. A0053NOE01
        Text in Illustration
        *1

        Component without harness connected

        (Windshield Wiper Switch Assembly)

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        A-1 (+S) - A-3 (+1) Off Below 1 Ω
        A-2 (+B) - A-3 (+1) MIST
        LO
        A-2 (+B) - A-4 (+2) HI
        A-9 (AUTO) - A-10 (E) AUTO

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

    2. Check the adjusting ring.


      1. A0056IQE01
        Text in Illustration
        *1

        Component without harness connected

        (Windshield Wiper Switch Assembly)

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        A-7 (VR1) - A-8 (VR2) Adjusting ring moved from (+) to (-) Below 10 to 2700 Ω

        Tech Tips

        The rain sensor sensitivity can be adjusted by the windshield wiper switch adjusting ring.

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

    3. Check the front washer switch.


      1. A0055WNE01
        Text in Illustration
        *1

        Component without harness connected

        (Windshield Wiper Switch Assembly)

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        B-2 (EW) - B-3 (WF) On Below 1 Ω
        Off 10 kΩ or higher

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

    4. Check the rear wiper switch.


      1. A00599KE01
        Text in Illustration
        *1

        Component without harness connected

        (Windshield Wiper Switch Assembly)

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        B-2 (EW) - B-6 (C1R) LO Below 1 Ω
        B-2 (EW) - B-7 (+1R) HI
        B-2 (EW) - B-6 (C1R) Off 10 kΩ or higher
        B-2 (EW) - B-7 (+1R)

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

    5. Check the rear washer switch.


      1. A00551QE01
        Text in Illustration
        *1

        Component without harness connected

        (Windshield Wiper Switch Assembly)

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        B-2 (EW) - A-5 (WR) On Below 1 Ω
        Off 10 kΩ or higher

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

  2. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY (w/o Rain Sensor)


    1. Check the front wiper switch.


      1. A0054CBE01
        Text in Illustration
        *1

        Component without harness connected

        (Windshield Wiper Switch Assembly)

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        A-1 (+S) - A-3 (+1) INT Below 1 Ω
        Off
        A-2 (+B) - A-3 (+1) MIST
        LO
        A-2 (+B) - A-4 (+2) HI

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

    2. Check the front washer switch.


      1. A005450E01
        Text in Illustration
        *1

        Component without harness connected

        (Windshield Wiper Switch Assembly)

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        B-2 (EW) - B-3 (WF) On Below 1 Ω
        Off 10 kΩ or higher

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

    3. A00571QE01
      Text in Illustration
      *1

      Component without harness connected

      (Windshield Wiper Switch Assembly)

      Check the intermittent operation.


      1. Connect the positive (+) lead of a voltmeter to terminal A-3 (+1) and the negative (-) lead to terminal B-2 (EW).

      2. Connect the positive (+) lead of the battery to terminal A-2 (+B) and the negative (-) lead to terminals B-2 (EW) and A-1 (+S).

      3. Turn the wiper switch to the INT position.

      4. Connect the positive (+) lead of the battery to terminal A-1 (+S) for 5 seconds.

      5. Connect the negative (-) lead of the battery to terminal A-1 (+S). Operate the intermittent wiper relay and check the voltage between terminals A-3 (+1) and B-2 (EW).

        OK
        Voltage changes as shown in the illustration below.
        A00533TE74

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

    4. A0055REE01
      Text in Illustration
      *1

      Component without harness connected

      (Windshield Wiper Switch Assembly)

      Check the front washer operation.


      1. Turn the wiper switch off.

      2. Connect the positive (+) lead of the battery to terminal A-2 (+B) and the negative (-) lead to terminals A-1 (+S) and B-2 (EW).

      3. Connect the positive (+) lead of a voltmeter to terminal A-3 (+1) and the negative (-) lead to terminal B-2 (EW).

      4. Turn the washer switch on and off, and check the voltage between terminals A-3 (+1) and B-2 (EW).

        OK
        Voltage changes as shown in the illustration below.
        A0058KXE54

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

    5. Check the rear wiper switch.


      1. A0054TFE01
        Text in Illustration
        *1

        Component without harness connected

        (Windshield Wiper Switch Assembly)

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        B-2 (EW) - B-6 (C1R) LO Below 1 Ω
        B-2 (EW) - B-7 (+1R) HI
        B-2 (EW) - B-6 (C1R) Off 10 kΩ or higher
        B-2 (EW) - B-7 (+1R)

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

    6. A0052F0E01
      Text in Illustration
      *1

      Component without harness connected

      (Windshield Wiper Switch Assembly)

      Check the rear washer switch.


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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        B-2 (EW) - A-5 (WR) On Below 1 Ω
        Off 10 kΩ or higher

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