burned out headlight
#1
#2
Welcome to the forum, well if you are absolutely positive all the fuses are good then ya its going to be the socket or the wiring. Start at the bulb and check the connection. If you have one use a multi meter or one of those cheap circuit tester light to see if you are getting voltage at the plug, if not start looking for a wire that is cut, rubbed ext..
#3
you could put the working bulb into the harness for the one thats not working and see if it turns on, if so than you got a bulb that was bad in the package, it CAN happen, not very often and i would expect that you would see it bad but maybe not, from there you need a multi-meter and a wiring diagram start checking connections to see where the power goes to and where it stops