I'm helping a friend fix the brake lights on his '55 Ford that he recently bought. The brake lights don't work. And there are no wires running to the break pressure switch. Where do the wires that go to the switch come from? I did a search & saw that if the switch is bad to replace in with one from either Harley, Painless or Ron Francis. Or go to a mechanical switch. Thank you! Bill
Here’s a link to the wiring https://www.classicfordspares.co.uk...0e-prefect-after-febuary-1955-excludes-deluxe the stop light sw is just below the horn, center and top. It starts at the headlight sw. I don’t know about the passenger cars, but on the birds it comes thru the firewall at the top of the drivers side in a round multi wire grommet. Goes to the sw. It provides full time power, the brakes work with the light and key off.
There is one hot wire attached to one terminal. The other wire should go to the turn signal switch. There are lots of threads here about how to wire a turn signal switch.
I got rid of the pressure switch on my '55 Ford. I used a switch for a '67-'72 Ford pickup which is on with the button out, off with the button pushed in. Drilled a hole in the top of the bracket that the pedals mount to so the rubber bumper on the brake pedal arm pushes against the button on the brake light swithc. Any brake light switch is wired the same way, doesn't matter which terminal is which--constant hot wire to one terminal, wire out from the other terminal to the brake light feed on the turn signal switch.
Purchase a classicwiring.com for your Ford. Laminated in 2 different sizes. It will save countless hours in trouble shooting and is about $20. The photo is for a 56 but you can expand it and see the pressure switch and the wiring. Use a pressure switch for a Harley Davidson.