Where is the brake controller plug?
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Where is the brake controller plug?
Hi guys...I have a 2007 FX4 5.4 and am installing a prodigy brake controller.
I have the factory harness which plugs into the prodigy but where is the truck's plug?
I believe it is under the dash on the right side of the driver. There are a lot of wires there! Where exactly is it and what does it look like?
Thanks
I have the factory harness which plugs into the prodigy but where is the truck's plug?
I believe it is under the dash on the right side of the driver. There are a lot of wires there! Where exactly is it and what does it look like?
Thanks
New User
Joined: Jan 2010
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From: Spring, TX
As you look at your dash it is on the right side. Under the dash right above the factory plug in slot. The plug faces the door. Easy plug & play.
That is a good brake controller. I have used mine for a few years and never any problems.
The brake contoller should have come with a wireharnass that plugs directly into the truck.
If you need I can take a picture at lunch.
That is a good brake controller. I have used mine for a few years and never any problems.
The brake contoller should have come with a wireharnass that plugs directly into the truck.
If you need I can take a picture at lunch.
Postmaster
Joined: Nov 2006
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From: The Woodlands, TX
the little grey plug is shown somewhere around 07:30 on this video.....hope it helps
Brake Controller Installation - 2008 Ford F150 - etrailer.com
Brake Controller Installation - 2008 Ford F150 - etrailer.com
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Post Fiend
Joined: Nov 2001
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From: Neenah, Wisconsin
The relay goes in the relay box....if i recall it was behind the passenger side kick plate....but i don't have the page saying what slot....anyone else???
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New User
Joined: Jan 2010
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From: Spring, TX
The plug is gray this is looking back
The is looking up
I think the relay is for R05, which is for the "trailer tow battry charge" which uses the truck alternater to charge any batterys on your camper/boat etc. but your trailer has to be set up for that. Yes the fuse box is on pass side kick panel
The is looking up
I think the relay is for R05, which is for the "trailer tow battry charge" which uses the truck alternater to charge any batterys on your camper/boat etc. but your trailer has to be set up for that. Yes the fuse box is on pass side kick panel
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ok ..I have the plug located and the Ford harness that came with the truck. The instructions that came with the harness show 6 wires to connect to the controller, one of which is a red one labeled " bat". There is no mention of a relay in the intructions and no other wiring included, so I assume that the Ford plug is already wired to the fusebox and no additional relay is needed. In other words true plug and play. Am I right?
Thanks for your help on this guys.
Thanks for your help on this guys.
New User
Joined: Mar 2010
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Relay
I have purchased a used 06 Lariat and it did not come with the wiring harness or fuse so I don't know if it is already installed. If someone could let me know the size of the fuse and which socket it goes in so I can check, that would be great.
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Joined: Jan 2010
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From: Spring, TX
Fuses 10,36,42 & 106 all have to do with trailer lights but should all be installed from factory.
Relay R05 is for the "Tow Battery Charger" which I don't think comes installed from factory so you might not have that one but don't need it unless your trailer is wired for this and has some kind of batteries like a camper.
The fuse box cover has a diagram with the fuse/relay numbers and locations.
The wire harness is for a brake controller if your trailer has electric brakes.
Relay R05 is for the "Tow Battery Charger" which I don't think comes installed from factory so you might not have that one but don't need it unless your trailer is wired for this and has some kind of batteries like a camper.
The fuse box cover has a diagram with the fuse/relay numbers and locations.
The wire harness is for a brake controller if your trailer has electric brakes.