[blindeyed]

I had that problem with one of my headlights a while back when I first got my car. Turned out that the low beam filament was burned out, but the high beam filament was still in tact. So whenever I would turn my headlights on, the low beam wouldnt work, but the high beams would. All you have to do is go up to a nearby AutoZone or Advance Discount Auto Parts and buy some new bulbs. I think 2 of them cost me about $40 together.. It's not too expensive. Maybe someone here else knows where you can get cheaper lights. But I'm pretty sure that's your problem right there.