B2425 0B, B2425 0E, B2430 0B, B2430 0E
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 below the minimum resistance.