Hi DanThurs, I wanted to thnak you for your past help. Not only were you right on the mark, you posted pictures that made my throttle body gasket change out a success. I am having a problem with my abs and traction control lights coming on. I have a 1993 Bonneville SE with 165,000 miles. When I start the engine the warning lights are off. I have done some checks observing when the lights come on. It seems that once the engine is started the lights will stay off, even when depressing the brake pedal. I can put the car in reverse and back up, and I can put it in drive and go forward. The lights still remain off. Once I am going about 13 to 15 mph the lights pop on simultaneously. It will occur at that speed without even depressing the brake pedal. So from what I read, apparently there are sensors in all four wheels, and any of them could be bad. Now here'* my problem. Can you describe these sensors, possibly a picture, and how to remove, test and replace them. I would gratly appreciate your guidance again. Thank you.

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Rudyveiga -- 1993 Boneville SE

The sensors are part of the wheel bearing / hub assembly. Check to make certain they are plugged in. If plugged in, unplug each one, clean it with some electrical part cleaner and add a little but of dielectric grease.