One owner 1989 F-150, 300/6, 5 spd. No running lights, no instrument cluster lights, no radio power. Fuses OK. Headlights & brake lights ok, turn signals ok. Grrrrr.
Could someone provide me with a complete under dash wiring schematic, complete with wiring colors?

 

Haynes has them, but read this caption before buying one:



But it's probably just the terminals burning off the headlight switch. Pull the **** off as shown in the middle of the diagram below, then remove that panel from the dash to access the switch. If any terminal is toasty, you can temporarily repair it by cleaning it with a nail file, and then bending it so it grabs the blade tighter. A little electrical grease (NOT dielectric) will help, too. You can buy a pigtail at most parts stores, but I'd just swap the plastic shell onto the original terminals without cutting any wires. If a terminal is REALLY bad, cut just that one & splice the replacement on.