'94 factory trailer plug fuse?

[saburai]

Hi gang! I'm trying to wire a 7 Blade trailer plug onto my 94 F250. It has the factory pigtails and I have located the brake, turn signals, brake controller and running light wires. However, 12v is not happening. For trucks that came with the factory pigtail, does anyone know if there is a fuse for the 12 volt? If so do you know the location? Many thanks...

 

[saburai]

Factory pigtails:

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[chillman88]

I've heard factory trailer package models have an add on fuse box next to the main one underhood. That's different for 92+ so I don't know anything about it, just that I've heard about it.

This thread shows it. https://www.ford-trucks.com/forums/1525340-factory-7-way-obs-wiring-oddity-2.html

I would assume if you don't have that then it's likely the wires aren't connected under the hood, but they should be there.

 

[saburai]

Thanks Chris! I'm pretty sure I have the two relay setup like in the link you posted. I'll check it out tomorrow, hopefully that's it. It's nice when it's a simple fix!