Fantastic Electric Trailer Brake Wiring
It reveals the parts of the circuit as streamlined forms as well as the power and signal connections in between the gadgets.
Electric trailer brake wiring. Trailer feed blue wire is the wire that allows power for the controller to the 6 way or 7 way trailer connector at the back of the vehicle. If not the wire needs to be run under the vehicle and through the firewall to the brake control mounting location if there is not already pre existing holes for such wires then a hole must be. Blue electric brakes or hydraulic reverse disable see blue wire notes below in the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest.
If your trailer has 7 wires running all the way back to the brakes then yes you can tap into the existing wiring. But for a longer tandem axle trailer i would recommend you run 10 gauge wire to all the assemblies just to minimize the amount of resistance that would be on the circuit. How electric trailer brakes work.
1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary. Wiring electric trailer brakes diagram electric over hydraulic trailer brakes wiring diagram electric trailer brakes breakaway wiring diagram electric trailer brakes wiring diagram australia folks comprehend that trailer is a car comprised of rather complicated mechanisms.
Each of your new brakes will have two wires for the brake magnet. Ensure it is sealed off and cannot create a short circuit with any other wire or the chassis. It does not matter which wire is used for power or ground because they are not polarized.
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. If you are lucky and have the factory tow package already installed you may already have this wire running from under the dash to the rear of the vehicle. Traditional trailer with brakes use a 5 pin connector.
Route the elecbrakes cable as required if you internally route. Elecbrakes must be connected to trailer wiring circuits as outlined in the wiring diagram. On a smaller trailer with a single axle of brakes 12 gauge wire would probably be enough.