Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The ignition is ON or the engine is operating.
The ignition 1 voltage is more than 7 volts.
The accelerator pedal is not in the rest position.
DTC P2122 runs continuously once the above conditions are met for more than 5 seconds.