THE HVAC FAN ELECTRICAL CONNECTION BURNED AND MELTED. I COULD SMELL BURNING INSIDE MY TRUCK. MY MECHANIC FOUND THE HVAC BLOWER FAN CONNECTION HAD BEEN SO HOT IT BURNED AND MELTED ALONG WITH THE RESISTOR. SOME OF THE WIRES WERE BLACK AND BROWN. I WAS WORRIED THE TRUCK WAS GOING TO CATCH ON FIRE! THIS HAPPENED WHILE I WAS DRIVING. AFTER LOOKING ONLINE I FOUND I AM NOT THE ONLY PERSON WHO HAS HAD THIS HAPPEN! TOYOTA DENIED THE PROBLEM. *TR