Its the heater blower resister (I think thats what it is called) theres a few topics on this you could search for. I had this problem, here is the thread that I posted in that has alot of information... Good luck... -Nick

http://www.contour.org/cgi-ubb/ultimatebb.cgi?ubb=get_topic&f=3&t=004476

"My family hauler can kick your family hauler's @SS!"
~~~~1999 Contour SE Sport~~~~
-KKM True Rev
-Custom cat back Flowmaster exhaust
-All Cat's fixed.
-SHO Shop Off-Road Y-pipe
-Many other Mod's done...