Action Taken When DTC Sets

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The control module illuminates the Malfunction Indicator Light (MIL) when the diagnostic runs and fails.
The control module records the operating conditions at the time the diagnostic fails.
The control module stores this information in the Freeze Frame and/or the Failure Records. The control module commands the TAC system to operate in the Reduced Engine Power mode or under certain conditions, the control module commands the engine OFF.
The message center displays Reduced Engine Power.