Forum Discussion

Gary_s's avatar
Gary_s
Explorer
Aug 14, 2016

Trailer Tail Light Wires??

i have a Jayco Eagle Fifth wheel and the socket in my tail light is rusty and causing problems. I'm going to replace the socket.
The tail light has a green, black and white wire coming from the trailer.

Does anyone know what function (i.e. turn signal) corresponds to what wire color?

Thank You!!
  • dougrainer's avatar
    dougrainer
    Nomad
    Aug 14, 2016
    Green is RUNNING Light
    Black is BRAKE Light
    White is ground
    Doug

    2nd correction I have to stop drinking beer after doing yard work and then posting.
  • Gary_s's avatar
    Gary_s
    Explorer
    Aug 14, 2016
    This is a picture of the wires coming from the trailer:
  • Farmerjon's avatar
    Farmerjon
    Explorer
    Aug 14, 2016
    The white wire should be a ground wire , the green is the right turn and brake lite. The black wire shouldn't be there, it should be brown. but it's probably the tail light or running light.
    Good luck.
  • downtheroad's avatar
    downtheroad
    Explorer
    Aug 14, 2016
    Easy to check with a multi-meter. Hook the pig tail to your tow vehicle and have someone in the cab activate the turn signal, then the brakes, then the tail light.

    With the multi-meter you can tell which wire is getting power when...

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