Conditions for Setting the DTC
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The vehicle communication interface module does not detect the presence of the cellular antenna.
- All the above conditions are present for greater than 1 second.