Boat Trailer lights?

Question

I have had my boat and trailer for about 6 years now, and all the trailer lights have worked fine. When I tried my boat trailer lights today, there seems to be a problem, when I put on the right turn signal, the left signal faintly blinks too, along with the side marker lights, rear marker lights and the license plate light.

anyone have any ideas what it could be?

Answer 1

Your problem is corrosion.  It happens often with boat trailers, as well as the vehicles used to put them into the water.  Somewhere you have a short, most likely caused by the corrosion.  Follow your wires and look for oxidation (rust) and attempt to clean them using steel wool or a wire brush.  If that doesn't work, you may need to replace them.  Its a pretty simple fix, and won't cost more than $50.

Answer 2

Bad ground wire

Answer 3

You have some wires crossing over to the opposite side. If you have separate wires going to everything then take off the black tape and separate the wires, If that takes care of the problem then go up and down each wire and see if you have a split in the insulation. If you find it tape it up so it can't make contact with the other wires.

Answer 4

You most likely have a corroded short. Inspect all of your wiring harness and look for corrosion. A little bit of current is leaking out of your right side, and is bleeding over to the left side, lighting up the lights. It could be in the trailer, or in your connection to the vehicle.

This is part of the fun of being a boat owner. The other part is keeping up with the wheel bearings on the trailer.

I hope you find it easily.

Regards,

Dan

Answer 5

Bad ground between tow vehicle and boat trailer. Most of the time they just use the trailer ball as a ground. So you need to clean the rust off the ball and coupler and make sure it fits tight or if there is a ground wire in the trailer plug make sure both ends are connected good.