Conditions for Running the DTC
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The control module runs the program to detect an internal fault when power up is commanded. The only requirements are voltage, high voltage, and ground. This program runs even if the voltage is out of the valid operating range.