My ABS came on just a four days after I had done my tires changed on my truck. I not have a mechanic that I regularly went to so I checked a couple of places close by and I chose Longlife Automotive in Miami. When I went in they told me that they have to check my car on a diagnostic machine to detect where the problem was coming from. I was a little worried because most places are willing to charge you anywhere from $50 to $75.00 just to checked it. Longlife Automotive charge me just $19.95. For using the diagnostic computer, the problem was a wire was disconnected and the mechanic just install the wire for free..