Yea, my car came with a Cobra ABS module. That module went bad and replaced it with a GT Traction one ( I just assumed I had a GT Traction one since my Vortech bypass is in the way of the sticker.) Light stayed on until I sent the Cobra one out and had it repaired. Reinstalled it and it has been perfect for 4+ months. My car came with GT brakes, I've added Mach 1 calipers since I've owned it but that has no meaning as to the light coming on in the first place. It truly was module failure that threw the codes. And my '99 GT was a bastard one as it came with the Cobra module..