After 43 years in the auto repair business... I simply choose not to participate in Idiocracy! .. I do not have a crystal ball .. so I'll stick with 'testing' before wasting money by guessing at any problem, as that is still 'proven' to be the best option... Now you do as you wish...but should practice what you preach! .. Adios..
When you turn the wheels, they will turn at different speeds. If the speed sensor is bad, the ABS pump will activate recognizing the wheel wasn't turning, but that should happen all the time the car is moving. A wheel bearing could also be a cause. Have it inspected to be sure. Another comment is to have the rear differential oil inspected for the limited slip function.
People still Google to find answers, adding additional information as it is discovered is helpful to other people. Isn't that what this board is for? And his post is actually right. We went through 4 actuators until our mechanic found that the right front wheel bearing was bad, causing the wheels to move at different speeds. This was causing failure of the actuators. In addition, the abs started constantly coming on when breaking at times when abs was not needed. New wheel bearing and now we have zero abs or stability track errors. You really shouldn't comment if you don't have anything helpful to add.