Conditions for Running the DTC

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

The system voltage is between 11-18 volts.
The engine speed is greater than 400 RPM.
The ECM driver transitions from ON to OFF or from OFF to ON.
The DTCs run continuously once the conditions above have been met.