Conditions for Setting the DTC

WARNING: This page is about a different car, the 2006 GMC Yukon XL, 2006 Chevrolet Suburban, and 2006 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

All conditions are met for 10 occurrences.
The PCM detects a closed TCC/Stop lamp switch circuit, 12 volts, during decelerations.