Wiper Switch (For Hatchback) Inspection

Vehicle Exterior. Yaris. Ncp93, 131
Wiper Washer. Yaris. Ncp93, 131

  1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

Wiper Switch (For Hatchback) -- Inspection



1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY


    Yaris. Ncp93, 131.Wiper Washer.Wiper And Washer System (For Sedan).Wiper Switch (For Hatchback) Inspection

  1. Check the front wiper switch.

    Text in Illustration
    *a
    		Component without harness connected
    (Windshield Wiper Switch Assembly)

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

      Standard Resistance:
      Front Wiper Switch
      Tester Connection
      		Switch Condition
      		Specified Condition
      F12-1 (+S) - F12-3 (+1)
      		OFF
      		Below 1 Ω
      INT
      F12-2 (+B) - F12-3 (+1)
      		MIST
      LO
      F12-2 (+B) - F12-4 (+2)
      		HI
      If the result is not as specified, replace the wiper switch.


    Yaris. Ncp93, 131.Wiper Washer.Wiper And Washer System (For Sedan).Wiper Switch (For Hatchback) Inspection

  1. Check the front washer switch.

    Text in Illustration
    *a
    		Component without harness connected
    (Windshield Wiper Switch Assembly)

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

      Standard Resistance:
      Front Washer Switch
      Tester Connection
      		Switch Condition
      		Specified Condition
      F11-2 (EW) - F11-3 (WF)
      		ON
      		Below 1 Ω
      OFF
      		10 kΩ or higher
      If the result is not as specified, replace the wiper switch.


  1. Check the intermittent operation.


    Yaris. Ncp93, 131.Wiper Washer.Wiper And Washer System (For Sedan).Wiper Switch (For Hatchback) Inspection


    Text in Illustration
    *A
    		FAST: Connect battery negative lead to terminal F12-1 (+S)
    		*B
    		SLOW: Connect battery negative lead to terminal F12-1 (+S)
    *a
    		Component without harness connected
    (Windshield Wiper Switch Assembly)
    		*b
    		Voltage between terminals F12-4 (+2) and F11-2 (EW)
    *c
    		Wiper Switch
    		*d
    		Stop
    *e
    		Start
    		*f
    		1.6 +/- 1 seconds
    *g
    		10.7 +/- 5 seconds
    		-
    		-
    1. Connect the positive (+) lead to terminal F12-3 (+1) and the negative (-) lead to terminal F11-2 (EW).
    2. Connect the positive (+) lead to terminal F12-2 (+B) and the negative (-) lead to terminal F11-2 (EW) and F12-1 (+S).
    3. Turn the wiper switch to the INT position.
    4. Connect the positive (+) lead to terminal F12-1 (+S) for 5 seconds.
    5. Connect the negative (-) lead to terminal F12-1 (+S).
    6. Operate the intermittent wiper relay and check the voltage between terminals F12-3 (+1) and F11-2 (EW).
      OK:
      Voltage changes as shown in the illustration.
      If the result is not as specified, replace the wiper switch.


  1. Check the front washer operation.


    Yaris. Ncp93, 131.Wiper Washer.Wiper And Washer System (For Sedan).Wiper Switch (For Hatchback) Inspection


    Text in Illustration
    *1
    		Washer Switch
    		-
    		-
    *a
    		Component without harness connected
    (Windshield Wiper Switch Assembly)
    		*b
    		Voltage between terminals F12-3 (+1) and F11-2 (EW)
    *c
    		Approximately 0.5 seconds
    		*d
    		Approximately 2.2 seconds
    1. Connect the positive (+) lead to terminal F12-2 (+B) and the negative (-) lead to terminal F12-1 (+S) and F11-2 (EW).
    2. Connect the positive (+) lead to terminal F12-3 (+1) and the negative (-) lead to terminal F11-2 (EW).
    3. Turn the washer switch on and off, and check the voltage between terminals F12-3 (+1) and F11-2 (EW).
      OK:
      Voltage changes as shown in the illustration.
      If the result is not as specified, replace the wiper switch.


  1. Check the rear wiper switch (w/ Rear Wiper).



      Yaris. Ncp93, 131.Wiper Washer.Wiper And Washer System (For Sedan).Wiper Switch (For Hatchback) Inspection

    1. Measure the resistance according to the value(s) in the table below. (w/ Intermittent:)

      Text in Illustration
      *a
      		Component without harness connected
      (Windshield Wiper Switch Assembly)
      Standard Resistance:
      Rear Wiper Switch
      Tester Connection
      		Switch Condition
      		Specified Condition
      F11-6 (C1R) - F11-2 (EW)
      		OFF
      		10 kΩ or higher
      F11-7 (+1R) - F11-2 (EW)
      F11-6 (C1R) - F11-2 (EW)
      		INT
      		Below 1 Ω
      F11-7 (+1R) - F11-2 (EW)
      		HI
      		Below 1 Ω
      If the result is not as specified, replace the wiper switch.


      2. Yaris. Ncp93, 131.Wiper Washer.Wiper And Washer System (For Sedan).Wiper Switch (For Hatchback) Inspection

    2. Measure the resistance according to the value(s) in the table below. (w/o Intermittent:)

      Text in Illustration
      *a
      		Component without harness connected
      (Windshield Wiper Switch Assembly)
      Standard Resistance:
      Rear Wiper Switch
      Tester Connection
      		Switch Condition
      		Specified Condition
      F11-7 (+1R) - F11-2 (EW)
      		OFF
      		10 kΩ or higher
      F11-7 (+1R) - F11-2 (EW)
      		ON
      		Below 1 Ω
      If the result is not as specified, replace the wiper switch.


    Yaris. Ncp93, 131.Wiper Washer.Wiper And Washer System (For Sedan).Wiper Switch (For Hatchback) Inspection

  1. Check the rear washer switch (w/ Rear Wiper).

    Text in Illustration
    *a
    		Component without harness connected
    (Windshield Wiper Switch Assembly)

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

      Standard Resistance:
      Rear Washer Switch
      Tester Connection
      		Switch Condition
      		Specified Condition
      F12-5 (WR) - F11-2 (EW)
      		OFF
      		10 kΩ or higher
      F11-7 (+1R) - F11-2 (EW)
      F12-5 (WR) - F11-2 (EW)
      		WASH
      		Below 1 Ω
      F12-5 (WR) - F11-2 (EW)
      		ON + WASH
      		Below 1 Ω
      F11-7 (+1R) - F11-2 (EW)
      If the result is not as specified, replace the wiper switch.