Conditions for Running the DTC

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

The engine is operating.
The ignition voltage is greater than 10 volts.
DTC P0100, P0102, and P0103 run continuously when the above conditions are met for 1 second.