Need a fuse box diagram for an '86 F-350 6.9
 

Plow lights aren't working and the fuses are the only thing I can think of that's left to go wrong. I don't wanna pull the wrong fuse out.

Thanks in advance, guys.

This may help you i found when i was doing some searching on the sire

Ford Truck Enthusiasts Forums - View Single Post - Fuse box diagram? Help please.

These are add-on plow lights? Sometimes they have inline fuses as well.....may have to do some hunting around on this one. What kind of plow?

find the wiring for the plow lights, take a picture for me...and throw it on here, I just fixed 7 plows for a friend(finally mastered electrical!)

Crazy2, thanks a lot. The plow is a Meyer E-47 mounted permanently on the truck. Aune, tracing the wiring was tough because the second owner put the plow on and installed the wiring himself, but the connections seem tight. I wouldn't know where to start taking pictures!

The switch that selects plow or truck lights has 6 terminals. the center 2 come from the trucks wiring, one is high beam one is low. With the switch in the truck light position it routes the power to the (bottom?) 2 terminals and when on plow it routes to the (top?) 2 terminals. If your truck lights are working it is not a problem with the truck but the plow wiring. The Meyer site has troubleshooting, install instructions, etc. You can find a wiring diagram there.