GSIC - Global Service Information Center

# WIPER SWITCH > INSPECTION

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

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

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

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