If there is an air bag in the steering wheel, the clock spring is probably coming apart. That is a wound-up ribbon cable in a plastic housing. It has circuits for the air bag, horn, and cruise control. There is just a ground circuit in there for the horn relay, so the smoke you saw is likely from current trying to get through a bad connection, not from an overload.
Friday, February 18th, 2011 AT 2:12 AM