Conditions for Running the DTC

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The system voltage is in the range of 9.5-17 volts.
The 5-volt supply for the SSR output auxiliary supply circuit is not faulted and DTC C0870 is not set as current DTC.
The SSR relay control circuit fault DTC C1112 is not set as current DTC.