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Home >> Cadillac >> 2015 >> CTS V, Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System And Washer System (Coupe) >> Diagnostic Information and Procedures >> DTC B3922: Front Wiper Function Select >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the turn signal multifunction switch.
  2. Ignition ON, verify the scan tool Windshield Wiper Switch parameter is OFF.
    • If not the specified value, test the signal circuit terminal 1 for a short to ground. If the circuit tests normal, replace the BCM.
  3. If all circuits test normal, test or replace the turn signal multifunction switch.
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