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Old 06-03-2015, 10:19 AM   #1
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Electric brake controller install

I am attempting to install a electric brake controller in my 2008 Fleetwood Expedition, it is built on a Freightliner XCS chassis. I have located the factory wiring harness and I am having problems locating a harness plug that fit's the factory brake assist connection. Has anyone found this?
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Old 06-03-2015, 02:09 PM   #2
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No, but if you can identify the type of plug it should be easy enough to obtain from an electronics supply store. Call FCCC Customer Service (800-FTL-HELP) and have your VIN handy and they should be able to tell you what the connector is. Or if the harness is a Fleetwood install, call them instead.

Suppliers like DigiKey have thousands of connectors available
Connectors, Interconnects | Electronic Components Distributor DigiKey
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Old 06-03-2015, 02:14 PM   #3
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I just finished finding this on my 2013. We needed to use that wire for a different purpose, so I called FW and they told me to look for a wire cluster hanging near the brake pedal. We had to poke around a bit because there are lots and lots of wire clusters there, but sure enough we did find a cluster with about 8 wires in it that went to a "dead-end" plug. Had to remove the end-cap of that plug and then use a tester to determine which wire was which. I was merely a helper in this process--using some testing equipment that my mechanic had. He plugged in a pigtail on my RV's 7-pin connector, twisted two wires together, then we tested each of those wires by the break pedal by touching the end with the tester and simultaneously hitting the brake pedal. Hitting the brake pedal completed the circuit, enabling us to locate the correct wire.

I hope you don't ask for more details, because I really wasn't 100% clear on what the heck we were doing! But I was skinny enough to easily get myself under that steering wheel, whereas my mechanic... well... he told me he was on a "tea" diet, but he was referring to a different T: Tacos, tortillas, tostitos..
2013 Fleetwood Discovery 40G, Cummins ISL,Freightliner Chassis, Allison 3000.
2017 Ford F150 Lariat toad w/
Blue Ox Aventa tow bar and M&G Braking System
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Old 06-03-2015, 03:28 PM   #4
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OK, after 3 days attempting to get answers from both Fleetwood and Freightliner I have come to the conclusion that nobody makes the connector to the Freightliner XCS chassis electric brake wiring harness. Freightliner has identified the wires and I confirmed using a multimeter so I removed the fuse, cut the wires and will hardwire the electric brake controller tomorrow. Freightliner did identify parts but after contacting my local Freightliner dealer they indicated that the parts were used to build a harness connector, the crazy price for all 3 parts were over $200.00, nuts!

Thanks for your ideas!
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Old 06-03-2015, 04:20 PM   #5
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That is basically what I did. If you look up some of my old posts i have pictures and color codes for each wire if you need a reference. I just left the factory connector and spliced into the wires and soldiered the controller wires inline.

Good luck!
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brake, install

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