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Old 03-25-2015, 07:36 PM   #1
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Lighting question

Ok I have seen people have there camper unhooked from there TV and still get there park lights on there camper to work. How do they do this?

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Old 03-25-2015, 07:39 PM   #2
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Jumper the charge and running light terminals in the trailer umbilical with a 7.5A ATO automotive fuse.

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Old 03-25-2015, 07:40 PM   #3
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Originally Posted by danielabram71 View Post
Ok I have seen people have there camper unhooked from there TV and still get there park lights on there camper to work. How do they do this?
Jumper wire between the terminals on either side of the lug on top.
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Old 03-25-2015, 09:03 PM   #4
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We all will say the same - take H-frame fuse and start poking it in the holes of the Rv towing plug eventually you will find the right holes. You can also put a flasher fuse to make all the lights flash. My dad does it with his and it drives me nuts (think that's why he does it) lol
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Old 03-25-2015, 09:38 PM   #5
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Look at the 7-pin diagram here:

Trailer Wiring Diagrams |

The pins at the 11 o'clock and 1 o'clock positions are the 12 vdc power and the running lights. These are the 2 you want to hook together. As mentioned above, a fuse is highly recommended.

Some folks have actually gone under the trailer, opened the junction box where the umbilical cord goes in, and they connect the same two wires with a fuse and a switch. Then they can just flip the switch and get the lights.
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Old 06-11-2015, 08:56 AM   #6
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Last night we repaired the wires running to the right rear tail light. My TV is in shop getting new rear shocks so I was going to show my dad the ol' jump to turn running lights on to check it. When I made the jump, nothing happened, I was dumbfounded it didn't light up. So I hooked a battery box to the trailer, hooking - to frame and stuck the + to 12v port, boom they lit up fine (tail light repair was success). Why didn't the jump work? Does trailer need to be hooked to shore power for it to work? Thanks.

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