Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > 2009 - Present Ford F150
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 05-20-2012, 07:39 PM   #1
Member
 
Join Date: Sep 2011
Posts: 88
Mentioned: 0 Post(s)
Thanked 7 Times in 2 Posts
Feedback Score: 0 reviews
Default OEM trailer brake controller problem, "trailer not connected"

Hi all. I need a hand please. My truck is an '11 FX4 with the tow package. I've installed the OEM integrated trailer brake controller. I took it to the dealer yesterday to have it activated. The problem is that when I hook up my trailer the display on the truck reads "trailer not connected". All of the lights work properly, I've checked the grounds and when checked the connection for the brakes where the trailer plug is spliced into the wiring harness.

The bizarre part is that if I move the manual slider on the TBC it will engage the brakes (but still shows not connected). I used a test light on the truck side of the plug to check for voltage. I am getting power to the brake wire with the slider but not if I depress the brake pedal.

Any advice?
TonyB. is offline   Reply With Quote
Old 05-20-2012, 07:44 PM   #2
Senior Member
 
Dhaskjr's Avatar
 
Join Date: Mar 2011
Location: TROY NY
Posts: 261
Mentioned: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Default

You did install the fuse and relay with the controller? If so I think there is a tsb on the controller.
__________________
2012 FX4 157" ECOBOOST, APPEARANCE PACKAGE, NAV, MOONROOF, STEPS, EXTENDER, BEDRUG, EXTANG REVOLUTION
Dhaskjr is offline   Reply With Quote
Old 05-20-2012, 07:44 PM   #3
Senior Member
 
Join Date: Mar 2011
Location: Prince George, B.C.
Posts: 1,737
Mentioned: 0 Post(s)
Thanked 83 Times in 58 Posts
Feedback Score: 0 reviews
Default

I remember something like this a year ago when I got my trailer, and I'm drawing a blank....
__________________
2011 FX4 Ecoscrew 6.5 Candy Red
dcfluid is online now   Reply With Quote
Old 05-20-2012, 07:44 PM   #4
Senior Member
 
Join Date: May 2012
Posts: 233
Mentioned: 0 Post(s)
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
Default

Yes, that’s bizarre. Have you used this trailer before on another vehicle or controller? Does Gain do anything?
__________________

2009 Ford F150 SuperCrew FX4 5.4L w/Max Tow
f6bits is offline   Reply With Quote
Old 05-20-2012, 09:33 PM   #5
Member
 
Join Date: Sep 2011
Posts: 88
Mentioned: 0 Post(s)
Thanked 7 Times in 2 Posts
Feedback Score: 0 reviews
Default

I did install the fuse and the relay in the panel.

@f6bits- If I press the gain + and - buttons the changes are displayed on the in-dash LCD panel as the change is registered but under that it says "no trailer".
TonyB. is offline   Reply With Quote
Old 05-20-2012, 09:42 PM   #6
Member
 
Join Date: Sep 2011
Posts: 45
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I knowthe prblem you are having. Are you using an adapter for your trailer? My truck does exact same thing if I use an adapter that does not have a center pin. My trailers are older and have the old style round 6 pin connector.
Chuck11 is offline   Reply With Quote
Old 05-20-2012, 09:50 PM   #7
Member
 
Join Date: Sep 2011
Posts: 88
Mentioned: 0 Post(s)
Thanked 7 Times in 2 Posts
Feedback Score: 0 reviews
Default

No adapter.
TonyB. is offline   Reply With Quote
Old 05-20-2012, 10:16 PM   #8
Senior Member
 
94-F150-10's Avatar
 
Join Date: Dec 2010
Posts: 420
Mentioned: 0 Post(s)
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
Default

I had the same problem, it was showing "trailer disconnected " on my truck and brother in laws truck, ended up being a bad plug on trailer. Changed plug and it works fine.
__________________
1994 F-150 XLT Flareside-Too much to list
2010 XLT Screw 4X4 Leveled
Airaid CAI, Corsa DB Catback
Billet Grill Top & Bottom, Amp Power Steps
FX4 Wheels-33x12.50x20 Toyo MT's, Train Horn
94-F150-10 is offline   Reply With Quote
Old 05-20-2012, 10:44 PM   #9
Senior Member
 
93Cobra#2771's Avatar
 
Join Date: Mar 2011
Posts: 1,436
Mentioned: 0 Post(s)
Thanked 118 Times in 84 Posts
Feedback Score: 2 reviews
Default

Yep, check plug on trailer. Mine had some tarnished contacts. Worked plug on and out and lubed it up good. Problem solved.
__________________
2011 SCREW EB 4x4, XLT, 145" 3:55's, Solo Performance 4" exhaust/Mach46 muffler, Rugged liner inner fenders, 20% tint, Firestone Ride Rites, Air Lift Wireless Remote, W/T Digital Fit, W/T Mudflaps, LineX, AVS hood protector, Infinity Reference 6832cf, AMP BedStep, Bakflip VP, GenX Trims Billet lower grill, 4600 Bilsteins
93Cobra#2771 is online now   Reply With Quote
Old 05-21-2012, 10:20 AM   #10
Member
 
Join Date: Sep 2011
Posts: 88
Mentioned: 0 Post(s)
Thanked 7 Times in 2 Posts
Feedback Score: 0 reviews
Default

How does the truck recognize the trailer? He puzzling part is that all of the lights work and the brakes work with the slider which tells me that all of the connections are good.
TonyB. is offline   Reply With Quote
Old 05-21-2012, 10:20 AM
 
 
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Join F150 Forum

 

The Mustang Source
All times are GMT -4. The time now is 09:56 PM.


Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.