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Old 11-07-2010, 04:13 PM   #1
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Join Date: May 2010
Location: Stayton, Or.
Posts: 29
Trailer Brake Controller Installation on 2007 APEX

Has anyone installed a trailer brake controller in a new APEX?

I have located the trailer brake wiring that was provided by WRV under the dash of my 2007 APEX. The heavy guage Blue Brake Wire is routed and connected to the 7 Pin trailer plug at the rear of the coach already.

There is also a white wire that looks like it comes from the Vansaco unit wire tied to the blue wire under the dash and is marked "BRK". I am assuming that has been supplied to use as the stop light signal for the trailer brake controler. I expected to see voltage that would light a test light when the brake pedal is depressed but that doesn't happen. In fact when you touch the wire with a test light it activates the electric brake booster without depressing the pedal when the key is off. If you use a volt meter there is 12 volts on the wire until you press the brake pedal and then the voltage goes away. This is the opposite of what I had expected.

If this is normal then they must have planned on a relay being added to control the input to the brake controller.

Any enlightenment on what someone else has found or knows would be appreciated.

Mark and Janet Schumacher
2007 APEX 40FDQS
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Old 11-07-2010, 05:53 PM   #2
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Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,172
Mark- check out the Apline Coach Assoc. Tech Library where you'll find info on Vansco. Check out the 2820 manual & the Vansco Tech pdf you'll find under the Chassis section for info on how the unit works. There is a warning about installing a relay on any of the Input circuits. You can Search on the Apline Forum here for more discussion on Vansco & brakes.

Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
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Old 11-07-2010, 07:01 PM   #3
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Join Date: May 2010
Location: Stayton, Or.
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Thanks Mike. I looked quick and didn't see anything on it but that will help me find it. I appreciate the help.
Mark and Janet Schumacher
2007 APEX 40FDQS
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Old 11-08-2010, 06:29 PM   #4
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Alpine Owners Club
Join Date: Dec 2001
Location: Las Vegas, NV
Posts: 1,097

My coach should be a lot like yours, for wiring. I installed a US Gear tow brake system, here are links to info about that.

Tow Wiring and Extra Wires

Brake Signal Connection

Trailer Connector

A few months ago I bought a toy hauler trailer to take to Burningman. I added plugs in the wires to the US Gear tow brake controller and a matching set of plugs to a trailer brake controller. I switched the plugs to the trailer controller for the trip with the trailer and then back to the US Gear controller after that trip.
Dale Gerstel
2007 Limited SE 40fdts
Las Vegas, NV
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Old 11-08-2010, 11:31 PM   #5
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Join Date: May 2010
Location: Stayton, Or.
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Thank you for the info. I knew I had seen the info somewhere in the past, when you first posted it. I purchased the coach new last March and hadn't gotten to installing the brake controller until I will be needing it in the next month or so. I did a few searches but didn't find all this info again.

I am planning on installing a US Gear Towed Brake System as well so I will plan on emulating your set up when I do.

I appreciate the help and look forward to returning the favor some day!

Thanks again,

Mark and Janet Schumacher
2007 APEX 40FDQS
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