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Home >> Chevrolet >> 2017 >> Traverse Premier, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System And Washer System >> Diagnostic Information and Procedures >> DTC B3922: Front Wiper Function Select Circuit >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF, disconnect the X1 harness connector at the multifunction switch.
  2. Ignition OFF, test for less than 20 Ω between the low reference circuit terminal 7 and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit test normal, replace the BCM.
  3. Ignition ON, verify the scan tool Windshield Wiper Switch parameter is Off.
    • If not the specified value, test the signal circuit terminal 4 (without N38) or terminal 10 (with N38) for a short to ground. If the circuit tests normal, replace the BCM.
  4. Install a 3 A fused jumper wire between the signal circuit terminal 4 (without N38) or terminal 10 (with N38) and ground. Verify the scan tool Windshield Wiper Switch parameter is Switch Fault.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the multifunction switch.
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