1. Autos
Send to a Friend via Email

Your suggestion is on its way!

An email with a link to:


was emailed to:

Thanks for sharing About.com with others!

You can opt-out at any time. Please refer to our privacy policy for contact information.

Trailer Wiring Diagram and Color Chart


Trailer wiring colors.

Trailer wiring colors for wire connections.

This diagram shows the colors of a basic trailer wiring setup to the connector and what each wire is supposed to be connected to. Use it to install or repair trailer wiring. The will show what color is what, i.e. What does the brown wire go to?

Trailer Wiring Colors

  • Brown wire to the tail or parking lights
  • Green wire to right turn signal/stoplight
  • Yellow wire to the left turn signal/stoplight
  • White wire to common or chassis ground
  1. About.com
  2. Autos
  3. Auto Repair
  4. Reference and Tech Data
  5. Trailer Wiring Diagram and Color Chart

©2014 About.com. All rights reserved.