Action Taken When DTC Sets
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Suburban, and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The control module illuminates the Malfunction Indicator Lamp (MIL) when the diagnostic runs and fails.
- The control module records the operating conditions at the time the diagnostics 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.
- Under certain conditions the control module commands the engine OFF.
- The message center displays Reduced Engine Power.