Conditions for Setting the DTC (Gasoline)
WARNING: This page is about a different car, the 2009 GMC 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.
The GEN F-Terminal Signal is less than 5 percent for 30 seconds.