Determining Wire Functions on Trailer with Non-Standard Wire Colors
Published 09/21/2017 >
Question:
My wires on my trailer are brown/yellow and 2 green/yellow and yellow my plug is white and green and brown and yellow...what goes with what?
asked by: Shannon P
0
Expert Reply:
You will need to test the wires you have with a circuit tester like part # PTW2993 to determine which wire carries which function. Check out the video I attached to see how this would be done in a similar scenario.
The problem is that you have a setup that does not use standard wire colors and because of that there's no way for me to know what your colors represent.
I also attached a help article that cover trailer wiring for you to check out as well.
expert reply by:
Jameson C
0
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Article: Trailer Wiring Diagrams
- Q&A: How to Test Brake Controller without Trailer Connected
- Q&A: Recommended Bike Rack and Dual Hitch Adapter for Carrying E-Bikes While Flat Towing
- Q&A: Recommended Flat Tow Setup for a 2026 Ford Maverick
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Trailer Turn Signals Both Blink when Just Left Turn Signal is Activated
- Article: Brake Controller Installation: Starting from Scratch
- Article: Installing an Electric Brake Controller on 2007-2013 GM Full-Size Truck or 2007-Present GM SUV
- Article: Brake Controller Installation for 2007 (New Body Style) - 2013 GMC Sierra and Chevy Silverado
- Q&A: Troubleshooting Right Side Trailer Lights Not Working, Left Side Working Correctly
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Q&A: How to Activate 12V Trailer Power Circuit on 2017 Ford F-350 Super Duty
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)



