Circuit/System Verification
WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
With scan tool installed drive the vehicle in a straight line at a speed greater than 15 km/h (10 mph), all wheel speed sensors should read the same miles per hour.