Conditions for Running the DTC

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0641, P0651, P1516, P2101, P2119, P2176 are not set.
The engine is running and the engine speed is more than 600 RPM.
DTC P0068 and P0121 run continuously when the above conditions are met.