Conditions for Setting the DTC: HPCM
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
The ECM OSS signal and the ABS wheel speed sensor signals differ by greater than 10 km/h (6 mph) for greater than 10 seconds.