WIPER SWITCH > INSPECTION

for Preparation Click here



1. REMOVE WIPER AND WASHER SWITCH ASSEMBLY (for LHD)


B113575E01

  1. Measure the resistance of the switch.

    Standard resistance (Windshield wiper switch):
    Tester Connection
    		Switch Condition
    		Specified Condition
    B-3 (+1) - B-2 (+B)
    		MIST
    		Below 1 Ω
    B-3 (+1) - B-1 (+S)
    		OFF
    		Below 1 Ω
    B-3 (+1) - B-1 (+S)
    		INT
    		Below 1 Ω
    B-3 (+1) - B-2 (+B)
    		LO
    		Below 1 Ω
    B-4 (+2) - B-2 (+B)
    		HI
    		Below 1 Ω

    Standard resistance (Windshield washer switch):
    Tester Connection
    		Switch Condition
    		Specified Condition
    A-3 (WF) -A-2 (EW)
    		OFF
    		10 kΩ or higher
    A-3 (WF) -A-2 (EW)
    		ON
    		Below 1 Ω

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



  1. Check the intermittent operation.

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

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

    3. Turn the wiper switch to the INT position.

    4. Connect the battery's positive (+) lead to terminal B-1 (+S) for 5 seconds.



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

      OK:
      Refer to illustration below.



      E056399E04

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



  1. Check the washer operation.

    1. Turn the wiper switch OFF.

    2. Connect the battery's positive (+) lead to terminal B-2 (+B) and the negative (-) lead to terminals B-4 (+S) and A-2 (EW).

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



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

      OK:
      Refer to illustration below.



      B086335E02

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



2. INSPECT WIPER AND WASHER SWITCH ASSEMBLY (for RHD)


B086316E01
SST
09843-18040  

  1. Measure the resistance of the switch.

    Standard resistance (Windshield wiper switch):
    Tester Connection
    		Switch Condition
    		Specified Condition
    B-2 (+1) - B-3 (+B)
    		MIST
    		Below 1 Ω
    B-2 (+1) - B-4 (+S)
    		OFF
    		Below 1 Ω
    B-2 (+1) - B-4 (+S)
    		INT
    		Below 1 Ω
    B-2 (+1) - B-3 (+B)
    		LO
    		Below 1 Ω
    B-1 (+2) - B-3 (+B)
    		HI
    		Below 1 Ω

    Standard resistance (Windshield washer switch):
    Tester Connection
    		Switch Condition
    		Specified Condition
    A-1 (WF) -A-2 (EW)
    		OFF
    		10 kΩ or higher
    A-1 (WF) -A-2 (EW)
    		ON
    		Below 1 Ω

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



  1. Check the intermittent operation.

    1. Connect the voltmeter's positive (+) lead to terminal B-2 (+1) and the negative (-) lead to terminal A-2 (EW).

    2. Connect the battery's positive (+) lead to terminal B-3 (+B) and the negative (-) lead to terminals A-2 (EW) and B-4 (+S).

    3. Turn the wiper switch to the INT position.

    4. Connect the battery's positive (+) lead to terminal B-4 (+S) for 5 seconds.



    5. Connect the battery's negative (-) lead to terminal B-4 (+S). Operate the intermittent wiper relay and check the voltage between terminals B-2 (+1) and A-2 (EW).

      OK:
      Refer to illustration below.



      E056399E05

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



  1. Check the washer operation.

    1. Turn the wiper switch OFF.

    2. Connect the battery's positive (+) lead to terminal B-2 (+B) and the negative (-) lead to terminals B-4 (+S) and A-2 (EW).

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



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

      OK:
      Refer to illustration below.



      B086335E01

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