If one headlight is out all others working on 2001 Chevy cavalier good fuse good bulb.Wiring issue?

cheack all the hook ups make sure there tight then if it still doesnt work fallow the wires runing out of the back of the bulb and cheack it there shorted out any where, u will c a little black burnt spot on ur wire, if u do clip it and get a new wire or splice the wire back to geather.