Conditions for Setting the DTC: P0601
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.
An ECM processing check value is incorrect for at least one sample. Each sample is 50 milliseconds. The ECM detects that the check value is incorrect for 0.05 second. This diagnostic runs continuous.