I had a problem with this (and many other things) when I got my car back from TitanMotorsports. I emailed them several times about the ABS light and they responded saying that it could be due to the HKS trackless kit that I have. This did not sound right to me because, the traction control and ABS are seperate systems so I started to hunt down for the problem myself. I found out that all four of the ABS wheel sensors were disconnected. I plugged them back in and the problem was solved.
So, I would check that first. They may have been disconnected to perform some work on the car and just never plugged back in.
So, I would check that first. They may have been disconnected to perform some work on the car and just never plugged back in.