What Does Brown and White Wire of Trailer Wiring Run To

Updated 01/02/2024 | Published 12/31/2023

Question:

I read what color wire goes for the marker lights. My question is on my markers it has a brown and a white. Does the white wire haft to be grounded to the trailer

asked by: Rick H

Expert Reply:

The brown wire of trailer wiring is the running light/marker light circuit and the white is ground. So on your setup that has a brown wire that would be where you'd run the marker light circuit to and then the white would get the ground circuit. You can run this to the frame of the trailer if you want or back to the main ground circuit of the trailer wiring.

expert reply by: Jameson C