help ! cluster , climate control module and fog lights stop working

[1sicktrac]

hey guys well i was driving today (crazy snow storm here in NY) and as i was driving i noticed my cluster and climate control just shut off and seconds after i smelled what was clearly a wire melting so i quickly pulled over shut my car off and turn knob to turn off all my lights , i popped the hood and it smelled like burnt plastic , so i started looking for smoke of any sort from a wire possibly shorting out and i noticed tht the right turn signal socket was melted. so i pulled the bulb out and the bulb it self looked fine but the plastic housing seemed like it was starting to melt. i pulled the bulb out went back in my truck turned it on and turned the lights back on and i noticed that my cluster and my climate control lights didnt turn on as well as my fog light button wasnt lighting up , everything else worked perfectly fine , my mirrors window switch my turn signal my brake lights pretty much everything but my fogs and all my dash lights is what i noticed wasnt working. then of course as i mentioned earlier with the whole snow storm.. i turned the knob to turn off all the lights as in headlights and fogs and i turned the 4wd on to high and the yellow light tht says 4wd on my cluster lights up so clearly it has something to do with when i turn my head lights on . any suggestion on to why my socket and bulb started melting and on why my cluster lights dont light up anymore ?

 

[just1me]

Do you have any access to wiring diagrams? I have all the wiring diagrams for a 2001 Sport Trac, have to look at the exterior and interior light diagrams to trace the what the problem could possibly be.

Have you checked all your fuses on the drivers side of the dash? I would probably pull off the bezel surrounding the cluster and check the headlight switch and dimmer module also, as well as look for any possible burnt wire behind or under the dash.