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Old 02-18-2007, 09:19 AM   #1
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Is there a wiring harness connection for an electric brake module in a 2005 W22? If so where? I have a 7-Pin connector for trailer connection that came installed with the hitch.

Any help is greatly appreciated.
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Old 02-18-2007, 09:19 AM   #2
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Is there a wiring harness connection for an electric brake module in a 2005 W22? If so where? I have a 7-Pin connector for trailer connection that came installed with the hitch.

Any help is greatly appreciated.
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Old 02-19-2007, 05:33 PM   #3
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This isn't a chassis feature, but is a coach feature. Check with your coach manufacturer for the details; they probably ran the extra wires from the connector up to the dashboard area/firewall area.

Have you opened up the 7-pin receptacle to see if the extra wires are present?
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Old 02-19-2007, 05:50 PM   #4
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If they did in fact pre-wire it for a trailer brake, the wire will in all likelihood be blue in color and would come out under the near the firewall in front of the driver as Mahlon stated. The trailer brake module will need four wires as follows: 1) hot wire 2) ground wire 3) wire to brake light switch, and 4) the blue brake control wire.
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Old 02-19-2007, 06:58 PM   #5
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I called both Workhorse and Winnebago with that very question and the answer in both cases was no. I ran the wires from the controller to the rear and put it in a wiring loom that you can get at an auto parts store.
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Old 02-20-2007, 04:41 AM   #6
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I use the Unified Tow Brake on my W22 Dolphin. There was no wiring for a TOAD brake so I ran the wires to the rear 6-pin connector. All of my TOAD wiring uses the single six-pin connector.
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Old 02-22-2007, 05:01 PM   #7
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I found mine; it looks like a length of convoluted conduit with three 14 ga wires (org/blu/blk) and a paper tag lettered "Tow plug spares / trailer brake blue". Comes out of the firewall in the vicinity of the accelerator pedal (there's a LOT of wires passing through the firewall at that point) then is led up behind the instrument panel, right side.
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Old 09-02-2008, 07:35 PM   #8
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by JJ Simba05 FLSTCI02:
Is there a wiring harness connection for an electric brake module in a 2005 W22? If so where? I have a 7-Pin connector for trailer connection that came installed with the hitch.

Any help is greatly appreciated. </div></BLOCKQUOTE>
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Old 05-02-2009, 04:38 PM   #9
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I am also trying to install a Unified Tow Brake on a 2005 Dolphin with a W22 Workhorse chassis. I have a six pin tow connector at the rear of the coach and I can see the charge wire and the brake control wire leaving the tow connector toward the front of the MH. I don't know if the MH has been pre-wired for a brake controller or not, but I know that the wires have to end somewhere.

Anybody know what Dolphin did with the other end of these wires?? Anybody know where I can get a wiring diagram that might help me.

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Old 05-02-2009, 11:59 PM   #10
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I found the trailer brake wire stowed in the vacinity of the fuse panel next to the drivers left foot. I had to take the trim panel off that was around the fuse panel to find it. If you look at the wires going to the 7 pin connector at your hitch, there may be a wire that is marked LLG. This is the brake control wire from the front. You can verify this when you find the stowed wire in front by applying power to it and see if it reads in the back. Hope this helps.
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Old 05-04-2009, 06:53 AM   #11
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Quote:
Originally Posted by Mahlon View Post
I found mine; it looks like a length of convoluted conduit with three 14 ga wires (org/blu/blk) and a paper tag lettered "Tow plug spares / trailer brake blue". Comes out of the firewall in the vicinity of the accelerator pedal (there's a LOT of wires passing through the firewall at that point) then is led up behind the instrument panel, right side.
what kinda moho do u have? i cannot find this info on your sig.
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Old 05-05-2009, 02:23 PM   #12
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Mine is an 05 Dolphin 34ft 5342 on a w22 workhorse chassis. I gave up trying to find the wires and ran the new ones that came with the Unified Brake System model that I bought. Had to cut the white brake light wire, install the diode, find a power and ground, and connect the UBS orange wire. What a pain. I really hate working under dashboards. Haven't started on the towed vehicle yet. That will be even worse, attaching a pulley and bracket to the 4runner firewall. This better be a really good brake system after all the time I have spent on it!!!!

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Old 05-05-2009, 06:20 PM   #13
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I guess I am lucky Winnebago had the spare wires. All I had was the brake control wire. I picked up a charge wire from the battery terminal at the generator. Since it was in the back, it was not a very long run. It is house battery but when you are driving it gets a charge along with the chassis battery.
The pulley on the firewall is kind of a pain but be sure you get it square with the brake pedal and the brake pedal does not hit it when depressed. My biggest problem with that was getting the big solenoid to fit under the seat on the Explorer. The rest under the hood looks to be pretty easy once I get to it.
Good luck.
Tom
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