I've had this problem for awhile now and Im just now getting tired of not fixing it. About a year ago, my high beams just flat out stopped working. My regular headlights work, but when I which to my highs, it simply cuts off my lights, leaving just the smaller yellow fog lights. I've heard word that it may be a relay but I dont know where said relay would be. I have the Chiltons(sp?) book for my car, but it doesnt tell me where the wiring harness is, just the colors for the wires.
Btw, the car is a 98 Ford Escort SE.