In the case of tandem axle trailers, it is recommended to use electric brakes on both axles. To prevent later problems due to malfunctioning of ground wire, ensure to run it throughout the periphery of the trailer and connect the brakes with it instead of the metallic frame of the camper. Moreover, to ensure safe operation in broken wire with one side, both brakes must be connected in parallel combination.Įxtend a single wire up to the axle and splice it into two wires to connect with the one terminal of the coil of the electromagnet in the brakes.Ĭonnect its other side with the standard white ground wire for all purposes, including lights and brakes. You need to connect these on both wheels with the same blue-colored wire to ensure a unified braking operation of both wheels. Single axle trailers have less weight loading capacity, and electric brakes installed on them also vary accordingly. Electric brakes wiring for single axle trailer You will find the blue-colored wire connected with the brake controller power output on the vehicle side. Specific colored wire dedicated for the purpose is the blue one in both standards.
Our particular concern is for wiring electric brakes on its side with a 7-pin plug. They use Red and Black interchangeably for 12V battery power. However, the SAE standard has a purple-colored wire instead of black. There are seven colored wires in a 7-pin connector both on the vehicle side and trailer side.Īccording to the RV standard, the colors included are white, brown, green, yellow, blue, red, and black. However, you can modify the wiring according to your requirements.
7 PIN TRAILER PLUG WIRE DIAGRAM HOW TO
How to Wire a 7 Pin Trailer Plug With Electric Brakes?Ī 7-pin connector is suitable for large trailers and RVs with more wiring options.Įach wire has specific color according to the standard for a particular function. What will be the effect of broken wire on trailer electric brakes?.How to protect wires connecting the electric brakes with a 7 Pin Trailer Plug?.Wire connection between parts of the trailer breakaway system.Connect wires with trailer breakaway system.Wiring for trailers with hydraulic brakes.Wire Connection in Tandem Axle Trailers.Electric brakes wiring for single axle trailer.How to Wire a 7 Pin Trailer Plug With Electric Brakes?.
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