headlight wiring where dose what go?

[78fordf150ranger]

Okay while I was relooming/inspecting my engine wiring harnesses I found a burn black wire that "T" off to too wires where can I find a wiring diagram/color as to where this wire goes

[ellis93]

Yr model of said harness or truck

[78fordf150ranger]

1993 dodge 250 diesel 4x4 and it the engine bay harnesses

[ellis93]

Look thru here viewtopic.php?f=30&t=11477

[PToombs]

The headlight wires come out of the bulkhead fitting, both sides in the same terminal, 1terminal wires red/ orange for high, the other terminal violet/ white for low beam. They split in the harness just below the bulkhead and 1 goes across the firewall to the passenger light and the other goes past the battery to the drivers light.
The grounds are on the firewall near the lights. You should biggie size those because they are way too small.

[78fordf150ranger]

So with that being said the burnt up wire (black) is more than likely the ground?

[PToombs]

Yup. Black is usually the ground on these trucks, but there is a black with yellow tracer that I can't remember what it's for.....

[bmoeller]

If it has a bullet end on it, it's probably for clearance lights.