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Old 05-09-2016, 07:00 AM   #1
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National RV Owners Club
Workhorse Chassis Owner
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Location: Portland, Oregon
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Towed plugin

Towed wiring connector. First time out I had no lights. I was able to clean the plug-ins with some emery paper, But I am looking for a way to clean back inside the wire plugs a bit better.
Any Ideas?

2004 National Sea Breeze LX8375, Towing a 2012 Liberty.
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Old 05-09-2016, 07:12 AM   #2
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Join Date: Oct 2015
Posts: 202
Check for ground

My first trip on my towed the lights did not work either. I was meticulous in making sure everything was perfect. Still, no working towed lights. I checked this, that and everything else. Still no worky. Finally, I checked for a proper ground. I had attached my ground wire on the towed to a piece of it's undercarriage frame, not bodywork. I never checked it for being a PROPER ground previously. Why should I? It's the frame. It's gotta be a ground!! Well, it turns out that with a test light from the battery and probing the so-called ground wire terminal in the plug-in...no ground. Must be a broken wire, I thought. Followed the wire path, not broken. Used the positively connected test light again and probed the connection point to the frame NO GROUND!!! I probed all over that chunk of framework and no ground. Probed a different area and found a good ground, attached my wire going to the plug and the lights have worked ever since.

Lessons learned:
1. not everything under a vehicle these days is grounded to the battery...check it.
2. The towed and the tow vehicles are 2 distinctly separate electrical systems, therefore their ground must be connected. In my case it is via the umbilical and the 2 connectors

Randy & Karin B, Portage, MI
2016 Newmar Bay Star Sport 2705, 18,000# F53, 5 star tune, CHF, RSSA, F&R TracBar
Blue Ox Alpha, Baseplate, Equinox & RViBrake3 w Tire Patrol
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Old 05-09-2016, 07:45 AM   #3
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I have used a .22 caliber brass cleaning brush for a rifle or pistol put in a battery powered drill. Depending on the size of the hole in the plug you can get larger or smaller brass brushes.
Bill, Maura & Rosie the rescued "Boston Terrier"
2016 Winnebago Adventurer 38Q-26K Chassis. TST 507 x10
2014 CR-V EX-L AWD w/Blue Ox & NSA Ready Brute Elite
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Old 05-09-2016, 10:20 AM   #4
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What C Dog said - excellent advice
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