Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The HVAC control module will no longer request the engine on for A/C.
No other fail soft actions are taken, and no telltales or other indications are given to indicate a system fault.
The DTC will be set until cleared with a scan tool.