Conditions for Setting the DTC

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The ECM injector output driver detects an incorrect current on a fuel injector circuit.
The above condition is present for 3 seconds for groups 1, 2, and 3.
The above condition is present for 5 seconds for group 4.