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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Cab/engine bay electrical for towing

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Old Jun 3, 2015 | 02:00 PM
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Cab/engine bay electrical for towing

Hello does any one have wiring diagrams for a 94 ford f350 5.8 with out the towing package? It appears as the wiring ends at the fire wall and not the rear section of the frame I would like to use the Factory fuses and run wire from the fuse box to the 7 pin plug also for the signal/brake lights there is wires to the under the hood fuse box but I can get any power to them any input would be awesome
Thanks Ty
 
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Old Jun 3, 2015 | 02:30 PM
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Okay, so you need 3 fuses. A 30A self-resetting fuse, a 20A self-resetting fuse. The 30A is for the brake controller, the 20A is for the AUX power.
There's a way to add a fuse to the ground to prevent a short in the trailer from tripping a truck fuse, but you can also add a fuse to each line.
 
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