I apologize for bringing up such an old post but I'm having the same problem with my '89 town car. The only difference with my case is that every now and then, my high beams will magically come on every now and then and then not work again usually when I go to start up my car again.
I have gone through most of the steps you have posted and I will tell you my findings.
In step one, I pulled the dimmer knob to both positions. First position only turns on the park lights and second position turns on low beams.
In step seven, headlights would switch to high beams but not stay on. Proceeded to step 9.
In step 9, I placed the dimmer switch to auto, and covered the sensor with something dark. No high beams.
In step 10, it mentions to disconnect the wire to the sensor module and ground it. Where is this located at? This is where I got stuck at.
Any help would be much appreciated. Thanks
Thursday, August 27th, 2009 AT 7:56 PM