2005 TBC...no trailer brake power until over 10mph?? Why?? - PowerStrokeNation : Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 05-28-2019, 05:47 PM Thread Starter
PSN Local
IQRaceworks's Avatar
Join Date: Jan 2018
Posts: 317
Exclamation 2005 TBC...no trailer brake power until over 10mph?? Why??

I've running the oem built in Trailer Brake Controller (TBC) in my 2005 F250 with the 6.0 in it. 95% of the time, the TBC works great. It's nice and smooth with applying the brakes in my camper, boat, or utility trailers...and seems to have plenty of power.

BUT......any time I'm going slower that around 10mph, even though it's showing that it's putting out power on the display, it doesn't put any power to the trailer brakes. Even if I manually squeeze the actuator lever all the way down, ZERO stopping power.

I read someone one one of the forums that this is normal for that year TBC's.....you need to get up to 10mph before it starts applying braking power. Is that true? If so, why in the hell would Ford design it like that? It's caught me off guard a few times going down steep hills at a slow speed, or rolling up to a stop light....you pretty down on the brakes, and the trailer just tried to push the truck. Talk about dangerous!!

Is there any fix for this besides putting in an aftermarket TBC? Any info on this would be great! I can't be the only one who hates this "feature" on the OEM TBC's.

Thanks for the info!

2005 F250 6.0 PSD, ARP Studs, Felpro HG's, EGR Delete, IPR Coolant Filter, Bilstein 5100s, Blue Spring Mod, IDP Custom Tunes
IQRaceworks is offline  

Quick Reply

Register Now

In order to be able to post messages on the PowerStrokeNation : Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome