Conditions for Setting the DTC

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Hood switch voltage is greater than 0.05 volts and less than 2.05 volts.
Hood switch voltage is greater than 2.30 volts and less than 4.16 volts.
Hood switch voltage is greater than 4.56 volts and less than 4.95 volts.
No 5-volt supply faults
HCM run time is greater than 5 seconds.