Headlights only work when they are on High.

My headlights are only running when they are in the high position. I've checked the bulbs and bypassed them to see if the problem was the bulbs, but both of them still work in high and low. I've also checked the relay and fuses and both are good. So I have no idea what it is. When I turn the lights on to the low position the High beam indicator on my dash comes on. If you have had this happen to you, or know how to fix this I need your help.

I drive a 95 tacoma DLX extended cab 4x4