B2425 0C, B2425 0D, B2430 0C, B2430 0D
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
By measuring output current, the module calculates that the heating element resistance is above the maximum resistance.