C1225 through C1228
WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
The EBCM detects a rapid variation in the wheel speed The wheel speed changes by 16 km/h or more in 0.01 second The change must occur 3 times with no more than 1.0 second between occurrences.