Conditions for Setting the DTC

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The vehicle speed decreases by at least 4.2 km/h (2.6 mph) within 0.25 seconds.
The PCM detects a TCC brake transition.
The PCM does not detect a stop lamp switch transition.