Mine was on for about 50 miles of my Niagara Falls trip last summer. It went away after that and I never saw it again. As for your question I have no idea, but thought I would throw in what happened to me.
Mine does this too when I corner hard. It goes out when I shut the car off and start it up again. I'm thinking it might have something to do with my front tires since they are nearing end of life, but that's just a guess. I tried cleaning the rear sensor as was suggested in another thread, but that had no effect. We'll see what happens when I replace those tires.
I was never able to get rid of mine. It all started when I first replaced the plug wires, so I thought it had something to do with interference. Putting plastic wire covers helped for a bit, but eventually, it came back. Now, I permanently deleted ABS, unfortunately. Things to check are: What Joe said, 3rd brake light, connector to front hubs, connector to the rear end.
94 Black T/A GT, Advanced Induction 355, 3200 stall, built 4L60E, Moser 9", Baer Brakes, Shooting for 11s...
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