F350 Headlights died while driving
I have a 2005 F350. I live in Canada and it was very cold yesterday -35 degrees C. I started my truck and let it warm up for about 15 minutes. I was half way to work and both my headlights shut off. Wierd, When I got to my shop I checked every fuse, all wiring harnesses, etc. I have to admit I am stuck. I found a little black box attached to the radiator cross member which runs to the headlights. There aren't any numbers on it, and I have no idea what it is,, except maybe my problem. The park lights, and fog lights all work great, just no headlights.
ANY IDEAS GUYS
This is driving me nuts