Conditions for Running the DTC

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0335, P0336, P0340, P0341, P0641, and P0651 are not set.
The engine is cranking or running.
DTC P0016 runs continuously when the above conditions are met.