Electric trailer brakes are a very well engineered products. One wire is for 12 volt power to the brake magnets and the other wire should be grounded either to the trailer frame or to the main trailer ground wire.

Installing The Trailer Drum Brake Flush Kit
Wiring up electric trailer brakes. You should be able to find what you are looking for there. If your trailer has 7 wires running all the way back to the brakes then yes you can tap into the existing wiring. Each of your new brakes will have two wires for the brake magnet. This short video is about trailer brakes electric brakes and wiring. Elecbrakes allows a trailer to comply with adr3805 and vsb1 for towing loads up to a gtm of 4500kg. It reveals the parts of the circuit as streamlined forms as well as the power and signal connections in between the gadgets.
It also talks about electric brake controller. Danny johnsons garage 82887 views. For this reason when there is an issue with electric brakes it is usually quite quick to diagnose. Thanks for watching. The following trailer wiring diagrams and explanations are a cross between an electrical schematic and wiring on a trailer. First try your luck with anyall manuals for your vehicle andor trailer.
The color of the wires is. How electric trailer brakes work. Helpful information on how to wire up electric trailer brakes. However if you dont have the manuals or that information isnt provided then this information may help you. How to setup and use the trailer brakes yukon tahoe suburban silverado duration. There is a range of wire sizes available for trailer circuits and electric brake wiring.
With few moving parts and no fluid to leak they are as close to trouble free as any brake could be expected to be. Assortment of electric trailer brake wiring schematic. In this case its mandatory that these brakes are electric with a compliant electric brake controller fitted. However most problems with these brakes. What gauge wire for electric trailer brakes. A wiring diagram is a streamlined conventional pictorial representation of an electric circuit.
Brakes probably need electricity too to actuate electric brakes or to disable hydraulic brakes when backing up.