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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 448 (Fixed And MOVEABLE Window System) >> Diagnostic Information and Procedures >> DTC B3819, B3820, B3822, or B3823: Rear Window >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
  2. Ignition ON, test for greater than 9 V between the signal circuit terminal A and ground while commanding the Rear Window Up with a scan tool.
    • If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
  3. Test for greater than 9 V between the signal circuit terminal C and ground while commanding the Rear Window Down with a scan tool.
    • If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
  4. If all circuits test normal, replace the rear window switch.
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