Traction Control Fault

It "feels" like the trailer braking has been reduced since the fault lite came on. There is not an ABS lite fault shown. If I spin the wheels on a gravel road the fault lite will flash. I have driven for a long time before this feature came out so I am not in a hurry to get it fixed, but if the fault causes reduced trailer braking, thats not good. I will have to get it scanned I guess.