So sometime last night my head light turned on all by them selves and now wont turn off. The light switch was off and key out of the ignition last night and still is now. The blue high beam indicator light is on now all the time with key out and switch off.

A couple days ago the passenger head light got dimmer then the drivers head light. Put a new bulb in and that didn't fix it. It will actualy dim down when I put high beams on and get brighter with low beams. Not sure if these two problems are related.

I've pulled all the relays in the fuse bow next to the battery and none made the light go out and the truck does not have day time running lights.

What is going on?

 

Pull the switch out, and have a look at the electrical connector. That's where I would start. (famous for melting....) If that looks ok..... gonna need to start tracing the circuit. You can download the 01 service manual from this thread, wiring diagrams in are in section 8W.