Trailer warning, this could happen to you

[sandman2234]

I’ll tell you this, ever since I found and removed the tiny screw, no more wacky trailer brakes.
That could have been a disaster. Once you slide back the cover and look at the guts of your trailer plug, you can see how easily this could happen.

I was thinking of using Loctite.

I would use Loctite before I used any other suggestions listed on here. Not that they do or don't work, but with my thoughts, Loctite is used to lock screws, whereas the other items "may or may not" accomplish what you are trying to do, and "IF" a wire got loose, which increases resistance, which causes heat. Now "just IF" the stuff you are putting in contact with the heat source happens to be an item that will burn and you have pressed it up against a heat source... HOW COULD THAT GO WRONG?
The silicone or the other stuff isn't designed to keep the screws tight, which is where the problem started.
David from jax

 

[RayIN]

I borrowed my nephews equipment trailer and the plug had been dragged and ruined.
Since I already have spares on hand I replaced his plug, then the fun began. Someone had spliced a turn signal wire with a different color, and I'd followed the color code (now 2 red wires) for a 7-pin Bargman plug.
Often a VOM is invaluable.

 

[sandman2234]

I borrowed my nephews equipment trailer and the plug had been dragged and ruined.
Since I already have spares on hand I replaced his plug, then the fun began. Someone had spliced a turn signal wire with a different color, and I'd followed the color code (now 2 red wires) for a 7-pin Bargman plug.
Often a VOM is invaluable.

And a few minutes checking the actual working featues of the trailer once you have it wired and ready to go! There is a lot to be said about doing a pre-trip inspection on a trailer (and tow vehicle!)
David from jax

 

[Dftodd]

I borrowed my nephews equipment trailer and the plug had been dragged and ruined.
Since I already have spares on hand I replaced his plug, then the fun began. Someone had spliced a turn signal wire with a different color, and I'd followed the color code (now 2 red wires) for a 7-pin Bargman plug.
Often a VOM is invaluable.

I have some 30ft test leads with alligator clips on each end. It was a give me from Matco a couple years ago in a Christmas giveaway.

If i'm running into an issue where someone got creative with wiring, I'll break out those leads and my ranger test box.

I'll hook the ground lead to ground on the battery and the ground wire in the harness.

Then start running power to each of the other wires in the plug to see which light comes on

Definitely beats tracing wires.