My headlights on my 1998 mustang gt just went on and i checked if they both just burned out put still wont work. My brights work tho. Anyone know what could be wrong thanx..
The R/BK wire from pin 13 of your multifunction switch feeds the low beams,if you don't have current here then switch is bad. It goes thru 4 connectors and a splice before it gets to the bulbs. The connectors are C105(black 24 pin connector) which is on the firewall close to the drivers hood hindge,C212 which is in the left kick panel and C304 this one also feeds your fog lamps so if they are working no need to check there,this one is the connector at the fog lamp switch itself.
The splice is after C105 connector and suspect this may be where your problem is. Just check it with a test light after this connector and if it is hot there just overlay the wire.