No just take off the wheel, it is behind the backing plate in the "hub"
There is a bolt there, #5 hex I think. Then you have to pry up on it but be carefull they break quite easy. If you do break it, you can chip it out but it will take a while and watch hen you get to the hub, you don't want to ding it up or it will give you false readings.
You can get it scanned at the dealer or a mechanic with a scanner.
If your not handy at mechanical stuff, I would let the mechanic do it.