Diagnostic Aids
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- A window regulator motor may cause a short to the local interconnect network bus circuit, and will cause all windows on one side to be inoperative.
- An open/high resistance between the door module and the first splice from the module will cause all windows on one side to be inoperative.
- An open/high resistance between the window regulator motor and the first splice from the motor will cause only one window to be inoperative.
- Use the DMM MIN/MAX function to capture/locate intermittent conditions.