WIPER SWITCH INSPECTION

PROCEDURE

1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

   
   
   1. 

      Text in Illustration

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

      Measure the resistance according to the value(s) in the table below (w/o Rain Sensor).

      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
      Front Washer Switch
      Tester Connection Switch Condition Specified Condition F11-2 (EW) - F11-3 (WF) ON Below 1 Ω OFF 10 kΩ or higher
      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
      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 windshield wiper switch.

   2. 

      Text in Illustration

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

      Measure the resistance according to the value(s) in the table below (w/ Rain Sensor).

      Standard Resistance
      Front Wiper Switch Tester Connection Switch Condition Specified Condition F12-1 (+S) - F12-3 (+1) OFF Below 1 Ω AUTO F12-2 (+B) - F12-3 (+1) MIST LO F12-2 (+B) - F12-4 (+2) HI F12-9 (AUTO) - F12-10 (E) AUTO Below 1 Ω
      Front Washer Switch
      Tester Connection Switch Condition Specified Condition F11-2 (EW) - F11-3 (WF) ON Below 1 Ω OFF 10 kΩ or higher
      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
      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 windshield wiper switch.

   3. Check the intermittent operation.

      

      Text in Illustration

      *a	Voltage between terminals F12-4 (+2) and F11-2 (EW)	*b	Wiper Operation
      *c	Stop	*d	Start
      *e	1.6 +/- 1 seconds	*f	10.7 +/- 5 seconds
      *g	FAST: Connect auxiliary battery negative lead to terminal F12-1 (+S)	*h	SLOW: Connect auxiliary battery negative lead to terminal F12-1 (+S)

      
      

      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 windshield wiper switch.

   4. Check the front washer operation.

      

      Text in Illustration

      *1	Washer Switch	-	-
      *a	Voltage between terminals F12-3 (+1) and F11-2 (EW)	*b	Approximately 0.5 seconds
      *c	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 windshield wiper switch.