7 pin hook up - Ford Powerstroke Diesel Forum
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Old 03-13-2009, 05:13 PM
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7 pin hook up

Im sure you guys already know and Im probably the only jack a@# who didnt but after alot of research found out. If you use your 7 pin and are not getting 12Volts to the power outlet (black wire) you need to install a relay in the little box under your hood beside the bigger fuse box. Just though I would share in case anyone else is trying to figure it out. Please take it easy on me!
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Old 03-13-2009, 05:16 PM
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Well I'm not gonna dog ya, cuz I didn't know anything about that. Thanks for the info!
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Old 03-13-2009, 05:20 PM
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did you install the 2 maxi fuses in the emgine compartment box? They are missing from the factory, hope thats what you are looking for and not a relay.
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Old 03-13-2009, 05:25 PM
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Quote:
Originally Posted by AFBLUE View Post
did you install the 2 maxi fuses in the emgine compartment box? They are missing from the factory, hope thats what you are looking for and not a relay.
Yeah thats the wierd thing. A tech at a u haul place told me about the maxi fuses, checked them and all the slots except one had fuses in them. I had to buy a relay (bought two acually just to fill both slots I know one is for the 7 pin have no idea what the other slot is for ) but yeah its the little box that doesnt have nothing in it but two slots for relays because you have two smaller boxes beside the fuse box.
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Old 03-14-2009, 08:04 AM
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7-pin

Depending on your trailer wiring requirements you can use the relay to provide 12volts to the black wire with the ignition switch on. My requirements dictate a constant 12 volts to the trailer connection at all times for trailer interior lighting, so I installed a jumper in the relay spot. I keep the relay in the console for accommodating friends trailers demanding ignition on 12 volts. Either way short protection is provided by the maxi fuse.
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