What are the Functions of Trailer Light Green, Yellow, and Brown Wires
Question:
Installing turn lights to a 4 flat trailer. Old original lights have 3 leads, Red, black and green. New Right side wires are Green and brown. New left side wires are yellow and brown. Which colors should be spliced together?
asked by: William I
Expert Reply:
Normally, the green wire on the right side carries right turn signal and brake light functions and the brown wire carries running light functions. On the left side, the yellow wire carries left turn and brake lights and the brown wire again carries the running lights. With only 2 wires, these lights must ground through the mounting studs.
Make sure to wire in the new lights by function to the existing trailer wiring and not by color.
Product Page this Question was Asked From
Hopkins Wiring Harness with 5-Pole Flat Trailer Connector - Vehicle End - 5' Long
- Trailer Wiring
- Trailer Connectors
- Vehicle End Connector
- 0 - 5 Feet Long
- Plug and Lead
- 5 Flat
- Hopkins
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on Trailer Wiring
Line C.
5/24/2020
Hi! I only have 3 wires on the trailer (brown, white, green) and 4 on my Chevy van.. extra red.. How do I plug it in ? Thanks!