So my ABS has been engaging at times when I come close or near a dead stop for seemingly no reason. I don't get a ABS light of any kind, it will just kick on when I'm about to come to a full stop. Another indicator I've had is that when I start the car cold, the Trac Light will go off for a split second and then disappear. Seems to exclusively happen when I'm starting the car cold and doesn't show up anywhere else.

Wondering if this points to anything in particular. I did replace a rear hub and the rear harness chasing down a ABS light which was telling me a bad rear sensor. Turned out to be the ABS control unit.

I want to know if there is a good testing procedure out there to test the abs sensors in the hub or the wire harness to identify the faulty part.

Any assistance would be appreciated, thanks.