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 ECM power down process in the last drive cycle completely finished.
DTC P2105 runs continuously when the above condition is met for greater than 5 seconds.