When mine went, it would give the errors on the dash and the ABS would randomly activate while stopping. Super quick and easy fix if it's just the sensor. If you get lucky it will be a front one, they are cheaper than the rears.
The hilarious thing was that my sensor let go when I was test driving the car after replacing the rear shocks. So of course I immediately thought that I had f'd up a rear sensor. Nope, it was a front that just randomly went bad. Correlation really doesn't imply causation.
