Trailer wiring diagram

Here is pic I found for those of you wiring a trailer

Thanks Kirt. Thats nice to know. Especially since I have a couple trailer lights that don’t work and now from looking at the diagram I know why.
Thanks, Bill

Boat Trailer Lights — Rewiring Tips

My Shoreland’r wiring was similar to the diagram in the top post, only a little bit different.

I had a taillight and sidelight on my trailer that were not working. The bulbs were good, so I started looking into the wiring with a volt/ohm meter. The readings did not make any sense so I pulled a wire harness. What a harsh environment inside the trailer frame – all rust and very rough. The abrasion actually wore through one wire (it was shorting out on the frame) and in another place the abrasion cut through the wire. No wonder my lights were getting dim these last couple of years.

After reading a bit about replacing the wires, here is what I ended up doing.

– I used three 20’ outdoor extension cords for the wiring as they should stand up to the abrasive environment much better than the cheap tiny wires that came with the trailer.

– A small plumbers snake for cleaning drains was the ticket for fishing the new wires through the frame, it was very simple and fast.

– I replaced the old taillights with LED lights. Gander Mountain has them 25% off for their moving sale.

Surprisingly, the original wiring did last 5 years; I hope this new wiring and LED taillights will last much longer. Total cost was about $40.

Dave Gulczinski

Good tip Dave. What guage wire did you go with?

I believe my outdoor extension cord was 14 or 16 gauge – whatever you use will be much better than what was originally in your trailer. Regular trailer bulbs and LEDs take very little energy, so the main reason for the outdoor extension cord is to protect the wires from abrasion. I believe that suggestion came from a post here on IDA.

Dave

Moreyes

What is the original source of this diagram? Color part is fine, but I’m having a hard time w/ the text – blurry. Have played w/ contrast, etc and blowing it up – no joy….

Thks

UG

I will dig around and find it

Do you have fax or email I could send it to you?