Head light switch wire diagram 1995 f350

Usually there is a circuit breaker in head lamp switch, that is for headlamps only. The other lamps are fuse protected, check for voltage to and from those fuses. Hopefully the diagram is large enough to read. I believe that diagram is for tail lamps. The black wire is ground for tail lamps, the other wire is voltage. I see two fuses in diagram.

https://s26.postimg.org/gukptsw7d/headlamps.jpg

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Usually on older vehicles, the headlamps don't use a fuse, but, fusible link, as shown in the diagram. Usually the park lamps and instrument cluster illumination are fuse protected, like the diagram shows, Not only check the fuses, use a test lite to check for voltage at fuse and at fusible link. The wires on top of switch in the diagram are voltage to headlamp switch, the wires on the bottom is voltage from head lamp switch to component.
Usually one of the wires from Battery positive goes to fusible links, at the moment, I don't have location.
Hope this helps, a little. I just want to add voltage and ground both are important.

You need a wiring diagram. Use a multi meter to find which terminal on the switch gives power (12volt) black wires are always negative (-) SO WILL BURN IF CONNECTED TO POSITIVE (+12V) supply.

Check the fuse its #4 under the dash and I have the same problem right now i have narrowed it down to the left rear tail light is grounding out somewhere.

CHECK THE HEADLIGHT SWITCH ,THE RUNNING LIGHTS CIRCUIT TERMINAL GETS TOO HOT AND MELTS THE WIRING CONNECTOR CAUSING THIS AND OTHER PROBLEMS . REMOVE THE SWITCH AND INSPECT THE CONNECTOR AND TERMINALS . IF ANY PROBLEMS ARE FOUND REPLACE THE SWITCH AND PIGTAIL ..

HOPE THIS HELPS

the headlights flash due to high current draw. It allows you to get of road at night w/o having lights go out. Is it one headlamp doing this? Are both low beam bulb and high beam bulb on at the same time? If yes, it will melt housing. Otherwise look for short circuit. This assumes you did not put aftermarket high current bulbs in your headlamps.

check dimmer switch or check head lights ground wires.

I will assume you have tested the bulbs, if so replace the head light switch, make sure the connector is not melted or burnt, if it is you will need to buy a kit from Dodge and repair the wiring harness.

The brown wire is your parking lights