Adding electric brake trailer hookup, how hard?
Senior User
Joined: Jun 2010
Posts: 141
Likes: 0
I called these folks. We use Pollak brand at work. http://products.pollakaftermarket.co...blies/pn-1902?
Took 2 part numbers but cant find the receipt. One is the harness that plugs into to two grey plugs under the truck. The other is the 7 wire connector itself. Then I bought the trailer brake connector and adapter harness that connects the controller to the factory wiring. All of it for less than $120.
Took 2 part numbers but cant find the receipt. One is the harness that plugs into to two grey plugs under the truck. The other is the 7 wire connector itself. Then I bought the trailer brake connector and adapter harness that connects the controller to the factory wiring. All of it for less than $120.
Thread Starter
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VT Chapter Ldr
Joined: Apr 2004
Posts: 96,127
Likes: 294
From: Orange, Vermont
Just the small harness from the two round plugs into the trailer plug.
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VT Chapter Ldr
Joined: Apr 2004
Posts: 96,127
Likes: 294
From: Orange, Vermont
Giving up the dream of plug and go. One of the prongs in the 3 prong plug in is broke. So hard wire it is. So the 4 prong plug
brown wire with white stripe is parking lights
small yellow left blinker
green right blinker
Big yellow ??
3 prong plug
orange power on key
blue??
black??
Any guesses on the 3 unknown
brown wire with white stripe is parking lights
small yellow left blinker
green right blinker
Big yellow ??
3 prong plug
orange power on key
blue??
black??
Any guesses on the 3 unknown
Lead Driver
Joined: Oct 2003
Posts: 8,476
Likes: 37
From: Madison, WI
Pretty sure blue is common brake lights (poss. brake controller), black would prob. be ground.
All the flat 4-wire trailer wiring stuff I've seen is brown (tail), green (right turn), yellow (left turn), white (ground). Never seen a second, larger yellow wire. The white/ground is usu. the one that's the opposite "gender" to the others.
All the flat 4-wire trailer wiring stuff I've seen is brown (tail), green (right turn), yellow (left turn), white (ground). Never seen a second, larger yellow wire. The white/ground is usu. the one that's the opposite "gender" to the others.
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
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FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
That is not my fuse box, maybe those wires are for some mod.
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VT Chapter Ldr
Joined: Apr 2004
Posts: 96,127
Likes: 294
From: Orange, Vermont
You talking about the little white one in the upper left hand side? All fuses and relays are in the box that the owners manual listed. Did not have those two wires though
Elder User
Joined: Jan 2012
Posts: 584
Likes: 0
From: Southern West Virginia
I did this one mine...but I can't remember exactly. I'm pretty sure blue is for backup (as already stated). On the 7 pin connector, you have one for backup lights, and one that will be for battery lead. Check out this website. It helped me a bunch - as posted on a previous thread:
Trailer Wiring Diagrams | etrailer.com
Here's a prev. thread that might help:
https://www.ford-trucks.com/forums/1...ke-wiring.html
One the wiring harness that has the 3 and 4 pin connector - I was under the impression that the ford part numbers for these were no longer in production. You can read a little about this one the thread link above. My ford dealer could not get them, nor could any parts store around here. I ended up buying a 7-pin round connector with the 4 pin on the side and hard-wiring it in. But to avoid having to cut into my truck's wires, we used small butt connectors. If you get just the right size, you can crimp them on the ends of the trailer connector pigtail wires and plug the other end into the factory plugs under the truck. Worked great for me...until I can find a factory one.
Trailer Wiring Diagrams | etrailer.com
Here's a prev. thread that might help:
https://www.ford-trucks.com/forums/1...ke-wiring.html
One the wiring harness that has the 3 and 4 pin connector - I was under the impression that the ford part numbers for these were no longer in production. You can read a little about this one the thread link above. My ford dealer could not get them, nor could any parts store around here. I ended up buying a 7-pin round connector with the 4 pin on the side and hard-wiring it in. But to avoid having to cut into my truck's wires, we used small butt connectors. If you get just the right size, you can crimp them on the ends of the trailer connector pigtail wires and plug the other end into the factory plugs under the truck. Worked great for me...until I can find a factory one.
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
This will helps you
http://www.thedieselstop.com/faq/949...les/980810.pdf
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VT Chapter Ldr
Joined: Apr 2004
Posts: 96,127
Likes: 294
From: Orange, Vermont
Thanks Jose'. I'm quite so rushed to do that now. The excursion is running so can use that for pulling the camper but hopefully finish installing it next week. I think I got everything. Just going to hard wire it in because the connectors on the truck harness are corroded and one broke because of corrosion