Diagnostic Aids

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The HVCID sensor has many different internal configurations in the same external package. Ensure that the correct sensor part number is installed with the correct software programmed in the SDG module.
Turn the ignition OFF for 1 minute before using a scan tool to clear the DTC from the SDG module. If the ignition is not OFF for 1 minute, the DTC may not clear.