I really thought I would have headlights tonight. The connector on the bright/dim switch was a little melted so I bought a new switch and made a new connector. Bright lights don't work. (Even though they have kinda off and on (no pun intended) over the last week or so).

Using an Ohm meter I'm showing that the red wire off the dimmer switch (which is power to the brights) has a short to ground. From the engine compartment I worked my way back to the bulkhead. That's OK.

So I have a short to ground somewhere between where the wire comes out of the pedal switch, and the inside bulkhead connector. Where the heck do I go from here? The wires are all wrapped all the way up there, there's no other connectors in between. I really don't want to randomly unwrap things half-way up there and test it. How could this one wire in the bundle be shorted but not anything else?

Should I just cheat and run a new wire from the pedal switch up through the bulkhead connector? That seems the easy way out, but also seems pretty cheesy. Is there some common area where this wire (or other wires going into the inside firewall bulkhead connector) would tend to short so I can look there first?

It's a 68 Charger, BTW.

Thanks in advance as always for any help you guys can provide. How did people restore old cars before the internet?

Looks like I was a moron. After rechecking the wiring diagram, I was getting the ground from the Bright indicator in the dash. After mucking around I got the headlights to work, it seems that maybe my + connection to the dimmer switch was weak and couldn't drive the brights.

I'm embarassed to admit that, but I thought I'd throw it out here since it drives me crazy when I'm searching moparts and find a similar problem, but the solution wasn't posted.

Thanks Robert - your help is always appreciated.