No Power to Trailer Brake Controller?? - Diesel Forum -
2008- 2010 General Questions General questions related to 2008-Up Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.

LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 06-30-2019, 04:35 PM Thread Starter
Junior Member
Join Date: Jan 2006
Posts: 3
My Photos: (0)
Feedback Score: 0 reviews
No Power to Trailer Brake Controller??

I have a 2008 F-350 long bed crew cab diesel 6.4. I have the notice on the dash saying "trailer brake module fault" and there is no power to the controller. (verified with my meter). I have power to the fuse 5 in the engine bay and the fuse is good...... I also still have charge power to the 7pin trailer plug so I know the fuse and relay in the cab are working. it also appears to have lost the ground as I can't get continuity to ground from the plug to the battery. Is there a connector between the plug for the back of the controller and the rest of the harness? I have +12 volts on the brake signal when the pedal is pressed so in know some of the wires are connected to the plug..... Help!!! I'm pulling my hair out here!
Lcsodiver is offline  
Sponsored Links

  Diesel Forum - > 2008-2010 Ford Super Duties > 2008- 2010 General Questions

Quick Reply

Register Now

In order to be able to post messages on the 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:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
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