How to Determine the Wire Color Function on a Trailer
Published 11/21/2018
Question:
my trailer has red brown yellow and green and the new connector has white brown yellow and green
asked by: John
Expert Reply:
I cannot speak of what function the wire colors represent on your trailer but I can say that on the 4-way trailer connector you have now; the white is for ground, the brown is for running lights, the yellow is for left turn/stop, and the green is for right turn/stop.
In order to determine which color wire is for which function on the trailer you would need to either trace them back to the tail light or use a 12 volt battery and see which circuit they illuminate. The issue with us telling you what each wire represents is that not all trailer manufacturers use the same color wire for the same functions and the trailer could have been required at some point so the functions of the wire in regards to its color would be even more unpredictable.
Product Page this Question was Asked From
16 Gauge, 4 Conductor Bonded Parallel Wire - Per Foot
- Wiring
- Wire
- Bonded Wire
- 4 Wire
- 16 Gauge
- Deka
more information >
Continue Researching
- Q&A: Will the Jacketed ABS Trailer Cable Per Foot Work w/the Pollak 7-Way Trailer Socket?
- Article: Trailer Wiring Diagrams
- Shop: 14 Gauge, 4 Conductor Jacketed Wire - Per Foot
- Video: Ultimate Overview of the Optronics LED Combination Trailer Tail Lights
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: TowSmart 14 Gauge, 4 Conductor Wire - 25'
- Shop: Jacketed ABS Trailer Cable Per Foot
- Shop: Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Amber Lens
- Shop: Optronics LED Trailer Clearance or Side Marker Light - Submersible - 3 Diodes - Rectangle - Red Lens
- Shop: Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Red Lens
- Shop: Optronics LED Clearance or Side Marker Light - Submersible - 3 Diodes - Rectangle - Amber Lens
- Search Results: trailer hitch
- Shop: Trailer Hitch
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Search Results: trailer tires and wheels
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Shop: Suspension Enhancement
- Video: Measuring To Choose The Right Trailer Axle
- Search Results: trailer wiring
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Shop: Brake Controller
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Search Results: trailer jack
- Q&A: Instructions to Wire a Trailer for Electric Brakes
- Video: How to Choose a Trailer Brake Controller
- Q&A: Does etrailer Carry Furrion Chill Cube w/ Heat Pump to Replace Dometic Duo-Therm
on Wiring
