Last years problem will be an issue

[msubobcats]

Some may remember the electrical issue from last year. A blown fuse that runs my running lights. Heading out Tuesday for our first trip, picked up the 5th Wheel today at storage and fuse is blown again. Think it is the one labeled TRL PRK, a 15 amp... Any suggestions at all? A wire rubbed through. A bad ground, how would one find that? Could something be amiss with the plug?
Tail lights, brake lights, turn signals all fine.

Thanks for any suggestions...

[KeithInUpstateNY]

Check for moisture in the affected lights. That was the cause of my running lights problem on a previous trailer several years ago.

[msubobcats]

Crawled under the truck a couple days ago and cut all the tape off the "pigtail connection" . Pulled it an inch over to the the bumper pull brackets... Now I have lights and no fuse blowing.
Question: when we get back would it be safe to cut all the wires and use wire nuts to reattach? Looks like they had used sort of a locking snap clip...

Thank you

[flybouy]

There are many watertight connectors available. Wire nuts can vibrate loose, are easy to break/pull off and even the silicon filled can let moisture in. I'm old school so I personally like to solder and heat shrink, hasn't failed me yet.

[sourdough]

You may look into the clear connectors that are crimp then heat shrink over the connection. Or these;

https://www.amazon.com/Solder-Shrink...72782933&psc=1

[chuckster57]

We use the crimps that are used at the brake backing plates. Filled with dialectic grease, so they are waterproof. Can’t for the life of me remember what they are called.

Found a pic, not the exact ones we use.

https://www.discount-low-voltage.com...SABEgL8cvD_BwE