F-250 trailer plug
 

Referring to the round 7 pin.....Im installing a new EOH controller on the trailer ( Dexter 1600 ) Ive got everything to work except the blue controller wire from the integrated controller on the dash. If I meter the pin with the controller engaged Im reading 2.8 vdc, is this right ?? this doesn't seem to be enough voltage to fire the trailer pump. If I put 12 vdc direct to the blue wire on the pump it comes on and builds pressure, Anyone have thoughts on this.

Just found this on another forum, mines a 2005, total BS, I'll hook on to it and test it.

I've got the same Dexter pump pulled by my 2000 Excursion, but without an intergrated controller. I went with a high-end aftermarket controller, and it was still a lot of work to get it to work right. Nature of the beast maybe? Anyway, once finally figured out, it works well, and so will yours. Good luck.

Integrated controller,s on newer truck,s are wacky I could not get the factory one to work comfortably on my 15 ram 2500 I went for a prodigy 3 and now we got some action .

The problem with bypassing the integrated controller is getting the aftermarket one to work without throwing a warning light on the dash.

Im gonna get my neighbor to sit on the tongue of the trailer and pull him about 25mph while on a cell call and have him tell me if the pump is working.........LOL....what was the ford engineers thinking....:readinghelp:.......obviously they were'nt

The Constant Hot wire is what powers the pump.
The Blue Wire is what tells it to turn on, and how much.

You need to have the Constant Hot wired up as well.

I don't know for certain how the Integrated Controllers work. It might be:
-reading the actual brake pressure, and translating that to an electrical signal to send to the blue wire.
-just detecting that the brake light switch has been tripped, and applying voltage to the blue wire that you can vary with the adjustment
-using a pendulum or inertia based controller somewhere, that only varies the voltage to the blue wire when the truck is actually decelerating.

All connections are correct, and break away works when pulled, its just that you cant test it sitting still.

You should be able to with the slider/emergency switch on your brake controller.

doesn't work that way either, the only way to energize the pump is to pull the break away switch or put +12 direct to the blue wire.........my truck was built 11/04 so it falls into this category, see my 2nd post I found on a truck site.

I'm assuming you have a battery on the trailer, correct? If so, does the brake controller actuate when the break-away switch is pulled and the truck is NOT connected?

Have you used a test light to confirm that you have power coming to the 12V hot pin out of the truck? Some trucks need to have a fuse inserted to make this happen, that's not there from the factory. This would be in the manual.

Also, some integrated/factory brake controllers, especially of that era were only designed to really with STRAIGHT ELECTRIC brakes. IF your truck is one of those, you need this:
Attachment 571022

That basically "fools" the truck into thinking you have Straight Electric (magnet) brakes; and allows your factory controller to work with an EOH trailer brake system.

no voltage present on the blue wire @ the truck plug until I engage the controller then theres 2.8 vdc on the blue wire no matter where the controller is set while truck not moving, Im gonna see if my neighbor is busy this eve, there may be a :nhl_fight: to see who gets trailer duty.....

I have no warning light . Do away with the factory setup mine never worked right down rite scary pulling 15k .

How did you by pass it?

Soon as I get the brakes bleed, Ill hook it up crank it up to 8-9 and see if it works, my B inlaw ( Matco man ) in TX talked to a bud of his, 40 yr Ford mechanic and he said some work and some dont, it is true the early 05's like mine need to be moving and decelerating for the ECM to put out max voltage on the blue lead, if it doesnt work he said to install a dexter in cab controller.

No warning ever came up . Prodigy is a plug & play unplug from the box and plug the new controller into the harness done .

it plugs into the dash harness ?? what brand truck

15 Ram 2500 , they should also have a harness for Ford , plug and play .

I don't know that trucks that DO have an integrated controller have the option to use a "pigtail" like the other trucks that don't.

See this page (after you enter your truck details), and see the two pigtails you can buy, which plug in under the dash, and allow you to wire up an aftermarket controller.
Reese - Brake Controllers

This will them use the truck's factory wiring to carry the brake controller signals to the trailer connector on the back of the truck.

Some other info:
https://www.etrailer.com/faq-fbc_sd05.aspx

replace your 05 factory controller with a Ford 07 factory controller. They did away with the minimum speed problem.

Im reading on the truck forums that 05,08,09 and 11's have had issues some 15's with the in cab controller, interesting go on ebay the 05-07 controller is 315 bucks but you can get a 2017 for 100 bucks 2011-16 110.00.....wth

07 is programmed different. PM RV from OSO he went through all this and replaced his controller and everything worked great. I have an 07 F350 and the stock controller works awesome.

F2, as Kris mentioned I went through the same trouble you are having. Your post #2 is correct. Get a later model controller from Ford. It fits/plugs in to the same location, looks the same but functions with EOH controller. I have a HydraStar and it works fine. You can be stopped and pinch the two levers on controller and brakes activate. You could not do that with version that came with truck. My build date was in the range that had the problem.

thanks rv................problem Im finding is I cant find an 07 controller, the ones on line state there for 2005 thru 2007.........is there a part number on the 07 controller that I can search for ??

Part number on box is 6C3Z-2C006-AA

Well much to my surprise, I have brakes.....:bunnydance:.........bleed the trailer brakes and the controller seems to working fine with the Dexter pump. Thanks for all the input gents much appreciated..:flag: