Does anyone have a link to a wiring diagram for a 1969 F100, two wheel drive, standard transmission and six cylinder 240ci.?
I’ve searched the internet for hours over the past three days and what I find does not completely match my truck. Mine is the original wiring.
I’m trouble shooting the brake lights.
I sure would be thankful for anyone’s help.

Russell

 

Hi Russ.
I don't remember if they had a stoplite sw controlled from pressure from the master cyl or if it was mechanical from the brake pedal under the dash.

In either case, power usually came from the fuse panel thru a fuse then to the switch. From there the wire went directly to the stoplights. UNLESS the signal lite sw was in between. I will check if I have anything to show that.

Since you are troubleshooting,,,,,,,,,,,,,what kind of problem are you dealing with?

 

Mine uses a mechanical switch at the brake petal. I replaced the turn signal switch because one of the tabs that cancel the switch is broken off. All the lights are working except the brakes.
there is no power to the brake light switch. One diagram shows power from the hot side of the hazard flasher and another shows power from the hazard switch. I was stupid and did not check the light prior to working on the turn signal so I don’t know if it is just a coincidence.