Yes, its the heating pad itself. They are notorious for breaking the little wires and causing things like small fires and burning your butt, and (best) not working at all. The whole seat element under the seat cover needs to be replaced with a new one. Lots of problems with these units, just like the sunroofs and window drive dogs. Check out the "Seat heater catches fire !!!!" thread here.
Last edited by UncleJ; 01-16-2012 at 08:44 AM.