hello.
the other day i was driving and ispotted a icy parking lot. so i pulled in and did a cookie and a reverse 180. then i left before anyone started to notice. when i pelled out of the parking lot my headlights and brights were out. my fog lights still work. i replaced the switch in the dash. still no headlights. does anyone have a idea of what might be wrong?

what i am asking is if their is a relay, or fuse for the headlights. is thier a chance all four lights went out simultaneously? do i have a ground problem.