Forum Discussion

howardwheeler's avatar
howardwheeler
Explorer
Feb 20, 2014

Does Freightliner run a harness for brake controller?

My friend has a 2008 Alfa (one of the last made) and we need to start pulling a car hauler trailer instead of the four on the ground we used to be able to do. The Alfa is a Freightliner 40 foot 400 h...
Class A
pigman1's avatar
pigman1
Explorer
Feb 20, 2014
Yes, Freightliner has that wired. In two previous Freightliner chassis I've found the plug up behind the dash slightly left of the steering shaft. It's a six pin rectangular plug, but it may not be empty. In my 2008 Tiffin Allegro Bus Tiffin plugged into it to power other things under the dash. All the wires were still there and still worked fine, but I had to use splice connectors to use the trailer harness.

If you'll (or anyone else) send me your email in a PM, I'd be glad to send you a diagram of the plug, wires and connections I got while attending Camp Freightliner. Unfortunately it's a .PDF file and I don't know how to attach it to the forum.
Workingtogether's avatar
Workingtogether
Explorer
Aug 29, 2024

Pigman, any chance you still have that wiring diagram for the harness on the Freightliner chassis?  I would sure like a copy.  Freightliner no longer makes the harness.  Thanks in advance.

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