Reply
 
Thread Tools Display Modes
Old 07-24-2019, 05:57 PM   #1
Junior Member
 
Join Date: May 2019
Posts: 28
Trailer Disconnected from F150

Last time I took my trailer out, I got a message from my F150 that my trailer was disconnected. All the lights and break lights on the trailer are working when the trailer is hitched and plugged into the truck, but break controller doesn't recognize the trailer. I took the truck into Ford who said it wasn't a problem with the truck, however from looking online, that is pretty much Fords answer to this problem. My trailer is a Flagstaff Microlite 19FGD. Has anyone else had this issue? Does anyone know where to start looking to fix the issue?
__________________

micro_jul is offline   Reply With Quote
Old 07-24-2019, 06:00 PM   #2
Senior Member
 
fonzie's Avatar
 
Join Date: Sep 2010
Location: Eastern Ontario
Posts: 3,876
Try your truck with another trailer and try another truck with your trailer. That should narrow it down which one is not working properly.
__________________

__________________
Fonzie
2011 Rockwood 8319SS with ProPride 3P hitch/GoodYear Marathons/TST TPMS 507
2008 F250 Lariat CC SB 6.8L V10 4.10 axle ratio (NITTO TERRA GRAPLER G2 LT275/65R20E)
Yamaha 3000iseb generator:Progressive Ind. EMS-HW30C : Eastern Ontario
Nights Camped:2012(36) 2013 (17) 2014 (18) 2015 (18) 2016 (36) 2017 (32) 2018 (42)
fonzie is offline   Reply With Quote
Old 07-24-2019, 06:04 PM   #3
rvb
Member
 
Join Date: Feb 2016
Location: IN
Posts: 96
I’ve seen this when I tested the breakaway cable. I suspect the computer sees 12v on the brake signal that it's not driving. Just a thought for one thing you could look into...
-rvb
__________________
Ryan V. B.
2017 FR Wildwood XLite 195BH
2010 F-150 4x4, 4.6L
rvb is offline   Reply With Quote
Old 07-24-2019, 06:22 PM   #4
Member
 
Librarianocnj's Avatar
 
Join Date: Oct 2017
Location: Ocean City, NJ
Posts: 85
And remember that on the new F150s. You must have engine off. Then plug in trailer. Then turn truck on. Then press brake pedal. If you don’t do these steps in this order it won’t recognize trailer and won’t send power through 12v wire.

From manual.
Your vehicle must recognize the trailer before the trailer can receive power.
Recognizing a Trailer
1. Attach the trailer and wiring connector to your vehicle.
2. Switch on your vehicle.
3. Press the brake pedal for a few seconds.
A confirmation message appears in the information display.
__________________
2019 Cherokee Grey Wolf 29TE
2018 Ford 150 SCAB STX 3.5 EB
Librarianocnj is offline   Reply With Quote
Old 07-24-2019, 06:40 PM   #5
Senior Member
 
Join Date: Jul 2017
Location: Peoples Republik of Kalifornia
Posts: 5,020
When the trailer is connected, the vehicle does a 5 second learning routine to see if the trailer has brakes or not.

Also, there were some years that had the trailer disconnect issue and there was a software flash the dealer could do.

https://www.f150forum.com/f118/trail...-fixed-415643/
__________________
2017 Coachmen 233RBS
2018 Ford F150 Lariat 3.5 Eco
"Common sense is not very common"
babock is offline   Reply With Quote
Old 07-24-2019, 06:47 PM   #6
Site Team
 
bikendan's Avatar
 
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 19,767
It would also help if you posted year and trim level of F150, since you didn't list it in your profile.
And is this the integrated brake controller or an aftermarket brake controller? If aftermarket, which brand and model.
You haven't given us enough information.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH
bikendan is online now   Reply With Quote
Old 07-24-2019, 06:52 PM   #7
Junior Member
 
Join Date: May 2019
Posts: 28
I forgot to mention that my F150 is a 2011 we bought from Ford, used. I don't know anyone who has a trailer. Thanks for the ideas.
micro_jul is offline   Reply With Quote
Old 07-24-2019, 06:53 PM   #8
Junior Member
 
Join Date: May 2019
Posts: 28
I don't know if it is after market. It was installed on the truck when we bought it.
micro_jul is offline   Reply With Quote
Old 07-24-2019, 06:56 PM   #9
Senior Member
 
Join Date: Jul 2017
Location: Peoples Republik of Kalifornia
Posts: 5,020
Quote:
Originally Posted by micro_jul View Post
I don't know if it is after market. It was installed on the truck when we bought it.
Show us a picture of it.
__________________
2017 Coachmen 233RBS
2018 Ford F150 Lariat 3.5 Eco
"Common sense is not very common"
babock is offline   Reply With Quote
Old 07-24-2019, 07:37 PM   #10
Site Team
 
bikendan's Avatar
 
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 19,767
Quote:
Originally Posted by micro_jul View Post
I forgot to mention that my F150 is a 2011 we bought from Ford, used. I don't know anyone who has a trailer. Thanks for the ideas.
Is it a XT, XLT, Lariat, Platinum or King Ranch?
Which engine does it have and does it have the Max Tow package, which comes with the integrated brake controller?
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH
bikendan is online now   Reply With Quote
Old 07-24-2019, 08:06 PM   #11
Senior Member
 
JWood422's Avatar
 
Join Date: Jun 2019
Location: At home
Posts: 224
Quote:
Originally Posted by micro_jul View Post
I forgot to mention that my F150 is a 2011 we bought from Ford, used. I don't know anyone who has a trailer. Thanks for the ideas.
Where are you located? We all have trailers. (In fact, I’d love to see how mine does on your truck.)
JWood422 is offline   Reply With Quote
Old 07-24-2019, 08:11 PM   #12
Senior Member
 
Capt. Mike's Avatar
 
Join Date: Dec 2012
Location: Franklin County, MO
Posts: 2,253
I kept getting a message on the dash of my Silverado saying "trailer disconnected" then a few seconds later it said "trailer connected." Turns out it was a broken wire to the magnet in one of the wheels that was triggering this false "trailer disconnected" message. Might start by trying there.
__________________
Mike and Yvonne
and Sophie, the little white dog
2017 Columbus 320RSC
2015 Chevy Silverado 2500HD Duramax 4X4
“It's not how old you are, it's how you are old.”Jules Renard
"It's not the years...it's the mileage." - Indiana Jones
Capt. Mike is offline   Reply With Quote
Old 07-24-2019, 08:12 PM   #13
Junior Member
 
Join Date: May 2019
Posts: 28
I'm in Las Vegas.
micro_jul is offline   Reply With Quote
Old 07-24-2019, 08:23 PM   #14
Junior Member
 
Join Date: May 2019
Posts: 28
It is an Ecoboost, 2011, and the only writing on the trailer brake is "Trailer Brake."
micro_jul is offline   Reply With Quote
Old 07-24-2019, 10:49 PM   #15
Site Team
 
bikendan's Avatar
 
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 19,767
Quote:
Originally Posted by micro_jul View Post
It is an Ecoboost, 2011, and the only writing on the trailer brake is "Trailer Brake."
Again pics are always helpful.
You should take the truck's VIN to a Ford dealer so you can find out how the truck is equipped.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH
bikendan is online now   Reply With Quote
Old 07-25-2019, 07:28 AM   #16
rvb
Member
 
Join Date: Feb 2016
Location: IN
Posts: 96
Quote:
Originally Posted by micro_jul View Post
I don't know if it is after market. It was installed on the truck when we bought it.
Is it a separate little box likely installed under the dash (aftermarket), or is it a couple of buttons and a lever installed in the dash (factory)?

-rvb
__________________
Ryan V. B.
2017 FR Wildwood XLite 195BH
2010 F-150 4x4, 4.6L
rvb is offline   Reply With Quote
Old 07-25-2019, 08:05 AM   #17
Senior Member
 
ben31's Avatar
 
Join Date: Apr 2015
Location: Middle GA
Posts: 1,266
Two things to try - Clean the connectors on the plug and receiver/connector. Next, test the pins on the receiver to make sure power is getting to those lines.

If you haven't already done it, clean the contacts on the receiver/connector and the plug using electrical contact cleaner. Corrosion can happen VERY quickly on these.

Next, buy this https://smile.amazon.com/58270-7-Way.../dp/B001EOWQY4 to test your connector. It will tell you if power is getting to the conenctor. This way, you can troubleshoot the problem and see if it is your truck, or your trailer. Home depot and Lowes have something like it in many of their stores, also.
__________________
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2008 F250 Lariat SuperCrew 4X4 6.4 Diesel
Never Enough Time Camping!!
ben31 is offline   Reply With Quote
Old 07-25-2019, 08:08 AM   #18
Senior Member
 
Semperfi24's Avatar
 
Join Date: Feb 2014
Location: Maryland
Posts: 527
Have you done any work on the trailer?

I ask because last fall, we did some work on the A-Frame of the trailer (the tongue) with adding a storage box. And when doing that, one of the bolts we used was up against a wire (and I didnt notice it). Turning the bolt was enough for the threads to make half a dozen perfect razor slices in the plastic wire covering. After that, I had the same issue. Got the message on my dash. Did a little poking around, found the issue, wrapped electrical tape around the wire, put it all back together (much more careful this time) and the issue was fixed.

I would investigate the wiring at the front of the trailer and see if you can find anything
__________________

_________________________
2019 Ford F250 Lariat 6.7 Powerstroke
2020 Cherokee Arctic Wolf 287BH
Semperfi24 is offline   Reply With Quote
Old 07-25-2019, 08:36 AM   #19
Senior Member
 
Join Date: Jun 2017
Posts: 659
Trailer Disconnected from F150

I had same problem on my 2014 all lights worked when hooked up before trip. Then on some trips I would get the message. Sometimes it went away and came back on. Since this happened on both my 2014 Tundra and my 2014 150 Eco Boost. I was lost since all lights worked and ground was good. Took trailer in told them thought it was my 7 pin connector on trailer was bad asked they replace it and just clean up some quick “Roadside wiring repairs i made several years earlier. Well $360 later no problems. Even though I asked them to replace they tested first and deemed the pin to be bad.
By the way after some arguing about charge I paid only half the price and have never returned. Charged me 3 hours labor for less than hour of actual work and instead of just replacing pin they charge me for time and of and diagnose of pin. Then 1.5 hours for “resplicing” 6 wires. That said their work was clean and spot on.
moose074 is offline   Reply With Quote
Old 07-25-2019, 09:15 AM   #20
Junior Member
 
Join Date: May 2019
Posts: 28
I love this forum. I am going to have a busy weekend. Thank you all for the advice!!!!
__________________

micro_jul is offline   Reply With Quote
Reply

Tags
f150, trailer

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:53 PM.


×