Electrical Power Bleed Issue....

[Arcticfox]

Greetings all:

I seem to be having an issue with what looks like some type of power bleed.
The tail light seems to light up only the curb side and only 4-LED's on the corners. I have seen this before and it seems to have something to do with getting moisture in the trailer umbilical cord to the truck. This time seems different as the trailer have been in the shop for the last several weeks and no moisture is around to get at it. anyone got any ideas as to what might be happening and how to fix it?
Thanks in advance

Cheers
Doug

[Arcticfox]

Then this morning I noted the little light above the dump gates seemed to be on. Well it wasn't on but it was sort of half on... As you will see from the following images the light seems to be bleeding also. The first image is what it looks like when the switch is off and the second image is with the switch on.
Again any help would be great

Thanks
Doug

[JMynes]

Not saying this is your problem, but any time I find a weird 12v problem, I look for a bad ground. If some other device, possibly way on the other side of your unit, has a bad ground, it can sometimes find the ground it needs by going through another device, such as a tail light.
First thing I would do is check battery connections. Make sure they are clean and tight. Then the other end of the ground wire.
Then, assuming the phantom lights are still lit, start pulling one 12v fuse at a time to see if the phantom lights go out. If so, you will know which circuit needs further investigation. It could be something silly like the refrigerator control circuit. Check all the grounds associated with that circuit.
Good luck.