Conditions for Running the DTC

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

The system voltage is 9-18 volts.
The ECM has commanded the MIL ON and OFF at least once during the ignition cycle.
DTC P0650 runs continuously when the ignition is ON.