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Old 01-28-2016, 07:09 AM   #1
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1986 sunline satellite travel trailer having issues with wiring

would like to know if anyone on here can help me, trying to fix right side running and back lights. left side works good but nothing on right side.
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Old 01-29-2016, 04:58 PM   #2
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Hi,

I moved your reply to a post of your own to help get better viability for help.

What you are describing sounds like either the ground or the hot wire to the right side is disconnected or corroded. They loop these in a light to light fashion so if the first set in the chain unhooks the rest do too.

Now to find the problem... The ground may be the easier place to start. If you take a piece of wire and attached it to a good frame ground then make it long enough to reach to a right side clearance light. This is a test wire, hangs out in the open. Then take the lens off and touch the wire to the ground side of the light. If it works, you know you are fighting a ground problem and have to figure out where it is being lost.

Is that does not do it, then you need to sort out the same thing with the hot wire hooked to a positive power source. Like the camper battery. There is a risk with this on hot wire off the battery. You really do not know if the light chain hot wire side of the lights is crossed to ground. If it is, when you touch with with a live hot wire to the lights hot side, it may be a dead short if that wire is ground. If you have a fused in your test wire, that will create some protection. If you have an ohm meter and take all the bulbs out, then you can test if the lights hot side is connected to anything. If you leave the bulbs in, you will can be measuring the resistance of the bulb and get a false signal.

Hope this helps.

John
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Old 02-01-2016, 07:04 PM   #3
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Good advice from John (as usual )

Since these are the running lights they all get power through the 7 pin plug from the tow vehicle. I don't know if the feed is split to feed each side or if the feed goes down one side and then accross the back and up the other side. If it is one continuous feed then the place to look is at the last GOOD light in the chain. The wire that feeds the rest of the chain may be broken at that point.
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Old 02-02-2016, 07:52 AM   #4
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Often you'll find connections behind the tail light assembly that go from sided to side.
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Old 05-16-2016, 02:25 AM   #5
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With it being an 86, check for corrosion or oxidation at all external lights. I have found this same issue on my 87. Bit of a pain in the butt tracking it down. Have a multimeter handy too.
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Old 05-16-2016, 06:17 AM   #6
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The lighting makes a home run with both the grounds and the hot wire both sides so yes if you have a ground issue it is possible to loose one side.
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