Condition 1
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 detects that the actual coolant temperature is 10°C (18°F) colder than the calculated ECT, for greater than 1 second or for a cumulative of 10 seconds.