Wiring Trailer Using Wishbone Wiring Harness
Question:
I just replaced my wiring I ran it inside a plastic tube inside the channel of my trailer I have four colors of wiring I have green and brown and yellow and brown I have the green and brown on the left hand side of the trailer and the yellow and brown on the right hand side of the trailer I connected into the lights and nothing happened but I realize I have to have a white ground to the trailer right my question is I have four colors green and brown yellow and brown how do I connect I only 4 connector I have a white a I would think the white connects to the trailer as a ground the yellow connects to the yellow the green connect to the green but then I have 2 browns do I connect both of those browns to the 1 Brown
asked by: Mike C
Expert Reply:
You're almost there!
What you're describing is known as a wishbone harness. The running lamp circuit is split with one leg running down the driver side, the other running down the passenger. You'd join these two wires to the brown running light wire from the trailer connector. The brown/yellow is ran down the driver side and the brown/green is run down the drivers side, so it sounds like you have that backwards. The white ground wire from the trailer connector will need to be grounded to the trailer frame. Put a ring terminal on the end of the white wire and find the spot on the trailer tongue where you want to mount it. Sand a dime-sized area down to bare metal and attach that ring terminal to the trailer tongue using a self-tapping screw. Put a star washer between the ring terminal and the trailer tongue so it'll bite into the metal for a good connection. Once you drive the screw down, give the connection a shot of spray paint like Rustoleum to protect if from corrosion.
I've linked to our trailer wiring article, I hope you find it helpful.
Product Page this Question was Asked From
Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Q&A: What is the Difference Between 7-Way RV and Utility Trailer Connectors
- Article: Most Popular Wheel Bearings
- Article: Breakaway Kit Installation for Single and Dual Brake Axle Trailers
- Q&A: 7-Way Trailer Plug Adapter or Compatibility with Lance Slide-In Truck Bed Camper
- Q&A: Is There BAK Tonneau Cover that Fits 2018 Ford F-150 6.5 ft Bed with TracRac Ladder Rack
- Article: Brake Controller Installation: Starting from Scratch
- Q&A: Do You Cut Tabs on Both Stacked SeeLevel Sensors SE88VR
- Q&A: Why is There a Wire Color Differnce Between 7 Way Traditional vs RV Standard
- Q&A: Installing a 7-Way Trailer Connector on a Trailer with 6 Wires
- Q&A: Replacement Trailer Connector for a 1999 Dodge Ram Pickup