What are White and Blue Wires Normally Connected to On Trailer Wiring

Published 08/16/2023

Question:

Hi, I have a 2007holiday rambler savoy travel trailertandom axle The brake wires have become disconnected on the front drivers side tire. There are two short green wires coming from the brake drum. Two thicker blue wires and a white wire coming from the trailer. There is also a thinner red and a thin white wire coming from the inside of the axle. The only wires that are connected to each other are the two blue. Im assuming the white and red wires coming from the axle are to transfer power to the right side brakes. Im not sure how to hook these back up. I dont want to make a mistake and cause damage to the brakes. Thanks for your help. Thanks for the help, I will try to attach a picture.

asked by: Terry H

Expert Reply:

Your picture didn't make it through but in general blue wires are the brake output circuit that bring the voltage to the assemblies and the white wires are the ground wires. I'm not able to attach pictures at this time either but if you check out the link I attached that covers trailer wiring you can scroll down and see how trailer brake wiring is normally connected.

expert reply by: Jameson C