power to prodigy
Lead Driver
Joined: Sep 2007
Posts: 8,180
Likes: 669
From: Scio, OR
I think what Denny is referring to is this. Apparently on some earlier models, Ford didn't put all the trailer tow relays and fuses in place, they came in a plastic bag in the glove box, along with a pigtail for the brake controller connector, and the new owner was expected to put these fuses and relays in if they wanted them.
I'm not sure which relays and fuses they didn't put in, but based on your original problem the brake controller power fuse was one of them. I think the trailer connector 12V power fuse and relay was the other one. Trailer connector power is fuse 16 (30A Maxi fuse) and relay 39 in the power distribution box.
Another thing you can do, just for peace of mind, is get a test light and check all your trailer connector pins. The cap for the trailer connector should be labeled with the function of each pin. Hook the alligator clip of the test light to the ground pin, then have a helper go through each function and check for power. You should have turn signals, running lights, backup lights when in reverse, a 12v feed when the key is on and power on the brake feed wire when the brake controller manual lever is pulled over.
I'm not sure which relays and fuses they didn't put in, but based on your original problem the brake controller power fuse was one of them. I think the trailer connector 12V power fuse and relay was the other one. Trailer connector power is fuse 16 (30A Maxi fuse) and relay 39 in the power distribution box.
Another thing you can do, just for peace of mind, is get a test light and check all your trailer connector pins. The cap for the trailer connector should be labeled with the function of each pin. Hook the alligator clip of the test light to the ground pin, then have a helper go through each function and check for power. You should have turn signals, running lights, backup lights when in reverse, a 12v feed when the key is on and power on the brake feed wire when the brake controller manual lever is pulled over.
Lead Driver
Joined: Sep 2007
Posts: 8,180
Likes: 669
From: Scio, OR
Forgot to add, here is a link to your owners manual, with all the fuse positions, etc.
http://www.motorcraftservice.com/?li.../01f23og4e.pdf
http://www.motorcraftservice.com/?li.../01f23og4e.pdf
Moderator
Joined: May 2004
Posts: 6,530
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From: Home Base Nebraska
Dave is right about the relay and fuse I was talking about. some dealers installed them before delivery and some did not.
I would have gone out and checked it out on my truck for the placement but it's been raining blowing here on the southern Oregon coast
Denny
I would have gone out and checked it out on my truck for the placement but it's been raining blowing here on the southern Oregon coast
Denny
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Joined: Oct 2003
Posts: 13,011
Likes: 742
From: Here in No. Calif
My relay board only goes to 37 (downloadable one from David). I see it listed as 39 but what gives?My box doesnt even go that high either.What am I missing? I`ll check all pins when rain stops later
Hanklin
Hanklin
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