Conditions For Setting The DTC

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTC will set under the following condition:

DTC sets when Park, Neutral, or a forward gear range is selected, and the Reverse pressure switch remains in the mechanically closed/electrically on position for a period of time that is calibration dependent.