Conditions for Running the DTC

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The ignition voltage is between 11-16 volts.
The engine speed is greater than 25 RPM.
The engine has cycled ON and OFF between 6-16 times dependent on coolant temperature.
The DTCs run continuously once the conditions above are met.