maybe you should check this , it is common for to go bad I replaced mine about six months ago,
there is a how-to somewhere in search I could not find it. It's pretty easy. It's up and behind the glove box, is held in with two screws, by the way the wire they supply you is too short to keep your factory wire jim

http://www.google.com/aclk?sa=l&ai=C...2B2003&cad=rja