Trailer wireing??
Thread Starter
|
Junior User
Joined: Jan 2011
Posts: 54
Likes: 0
Trailer wireing??
I have a F450 and I assume it has a trailer towing package for the wireing to the rear. I am hooking up the plug for the trailer and and have found the turn signals, bu light, tail light. There are a couple of 12 ga wires that I am not sure about. One is the white one, I assume it is a ground wire. The other one ( sorry cant remember what color) but I assume it is for the elec brakes. My question is where do these wires come out at the firewall or inside the cab to hook up my elec brake controler too. Normally I just run a 12 ga wire from the controller back to the rear for the elec brakes, but if the one wire is for that purpose, where is it located in the cab or under the firewall. Does it go through the fuse box? Also you have to tap in to the brake light switch. Is there a plug where you can just plug into it or will I have to cut and tap into it right at the brake light switch?
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
My 06 F250 came with the brake controller factory installed so I didn't have to go through this. On a couple of other trucks, the connector was under the dash with everything you need pre-wired. Just stop by dealer and tell em you need the pigtail for the brake controller. Wasn't too expensive. One truck had the pig tail in a plastic bag in the glove box. Had never been used. Glad the previous owner had left it in there.
More Turbo
Joined: Jun 2010
Posts: 652
Likes: 1
From: New hampshire
This should help you.
Etrailer
This gives the wiring diagram and should help you to identify your wires. I built an extension cable for my fifth wheel using this and it worked very well.
There should be a pre-wired plug as afore-mentioned under the dash. I assume since you are asking that there is no 7 pin connector on your bumper?
Eric
Etrailer
This gives the wiring diagram and should help you to identify your wires. I built an extension cable for my fifth wheel using this and it worked very well.
There should be a pre-wired plug as afore-mentioned under the dash. I assume since you are asking that there is no 7 pin connector on your bumper?
Eric
Last edited by egregg57; Aug 8, 2011 at 09:32 AM. Reason: added info
Thread Starter
|
Junior User
Joined: Jan 2011
Posts: 54
Likes: 0
I know how the plug hooks up in the rear. I was just trying to find out where the plug in is located in the cab. If I could find this, then I could just run a wire from my controller to it and avoid running another wire for the trailer brakes to the rear. Any one know where that plug is located.
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Found this at:
Tekonsha Brake Controller with Wiring for Ford F-450 Super Duty 2011 - 90885-3034P
Note: If your Ford F-450 Super Duty has a factory-installed trailer hitch and 7-way connector, then all the wires for the brake controller have already been run. If not, additional parts will be required to complete the installation of the brake controller.
You might also try checking the websight of the manufacturer of your controller. Many have detailed instructions and even video's.
This is somthing like I was talking about from dealer in earlier post. It would plug into truck at connector you are looking for and other end to controller. If the controller has wires but no plug, you could cut the plug off this pigtail and butt-splice it to controller. Clean install and no mods to truck harness.
Tekonsha Wire Replacement for Ford, Lincoln, Mercury, and Land Rover Vehicles Tekonsha Brake Controller 3035-P
Tekonsha Brake Controller with Wiring for Ford F-450 Super Duty 2011 - 90885-3034P
Note: If your Ford F-450 Super Duty has a factory-installed trailer hitch and 7-way connector, then all the wires for the brake controller have already been run. If not, additional parts will be required to complete the installation of the brake controller.
You might also try checking the websight of the manufacturer of your controller. Many have detailed instructions and even video's.
This is somthing like I was talking about from dealer in earlier post. It would plug into truck at connector you are looking for and other end to controller. If the controller has wires but no plug, you could cut the plug off this pigtail and butt-splice it to controller. Clean install and no mods to truck harness.
Tekonsha Wire Replacement for Ford, Lincoln, Mercury, and Land Rover Vehicles Tekonsha Brake Controller 3035-P
Last edited by Rusty Axlerod; Aug 8, 2011 at 08:32 PM. Reason: added suggestion
Lead Driver
Joined: Sep 2007
Posts: 8,180
Likes: 669
From: Scio, OR
The location of the plug, and the shape of the plug, and thus the wiring harness you need for a brake controller, all depend on the year of the truck.
05 and up trucks have a different plug in a different location that 04 and down trucks. At least in the Super Duty line.
05 and up trucks have a different plug in a different location that 04 and down trucks. At least in the Super Duty line.
More Turbo
Joined: Jun 2010
Posts: 652
Likes: 1
From: New hampshire
I know how the plug hooks up in the rear. I was just trying to find out where the plug in is located in the cab. If I could find this, then I could just run a wire from my controller to it and avoid running another wire for the trailer brakes to the rear. Any one know where that plug is located.
Thread
Thread Starter
Forum
Replies
Last Post
ddavidv
1987 - 1996 F150 & Larger F-Series Trucks
9
Sep 28, 2014 01:53 PM
buffalobob
1987 - 1996 F150 & Larger F-Series Trucks
13
Aug 25, 2008 07:49 PM
LogicalRetard
All Things Towing
3
Mar 22, 2005 11:47 AM
ccrider966
1987 - 1996 F150 & Larger F-Series Trucks
9
Sep 9, 2004 08:22 AM
mrhockey
1997 - 2003 F150
5
Oct 22, 2002 02:12 AM
