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Home >> Chevrolet >> 2015 >> Spark LS, Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System And Washer System >> Diagnostic Information and Procedures >> DTC B370B: Rear Wiper Function Control Circuit >> Component Testing >> Windshield Wiper/Washer Switch
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Windshield Wiper/Washer Switch

  1. Ignition OFF, disconnect the harness connector at the S82 Windshield Wiper/Washer Switch.
  2. Test for infinite resistance between the signal terminal 4 and the low reference terminal 2 with the rear wiper switch in the OFF position.
    • If less than infinite resistance 

      Replace the S82 Windshield Wiper/Washer Switch.

    • If infinite resistance 
  3. Verify the resistance is within the range specified below between the signal circuit terminal 4 and the low reference circuit terminal 2 by cycling the switch between Rear Wiper position and Rear Washers position.
    • Rear Wiper: 624-644 Ω
    • Rear Wiper Sweep: 1.8-2.2 kΩ
    • Rear Washer: 5.9-6.4 kΩ
    • If not within the specific range 

      Replace the S82 Windshield Wiper/Washer Switch.

    • If within the specific range 
  4. All OK