Trailer 4 Wire Plug Wiring Diagram

6 way systems round plug.

Trailer 4 wire plug wiring diagram. There are many types of plugs used in the motorcycle trailer industry but cars almost exclusively use a flat 4 plug. Following the standard method for wiring a trailer connector is vital to the safety of your vehicle while towing. The black sometimes red 12v and blue electric brakes wire may need to be reversed to suit the trailer. A 4 wire system will not use the 5th blue or red wire.

Trailer wiring kit and supplies. The most common wire thickness for a trailer is 16 gauge but i bought thicker wiring for added durability. A wiring diagram is a streamlined traditional pictorial representation of an electrical circuit. It shows the components of the circuit as streamlined shapes and the power and signal connections between the devices.

Assortment of 5 wire to 4 wire trailer wiring diagram. Start by cutting the white wire and attaching it to the trailer frame. Yellow and green are for left and right turns and braking. Connecting the wrong color wires will result in mismatched taillight functions and confusion on the road.

4 5 way flat connector wiring diagrams 4 way and 5 way flat connectors use color coded wires and are available in a variety of lengths. Use this 4 pin trailer wiring diagram to properly wire your 4 wire trailer plug. Traditional trailer with brakes use a 5 pin connector. Check with a test light or vom.

They can be purchased as a standalone plug for the truck or trailer or as a complete loop with both the plug and the socket included. Installing the 4 pin trailer wires. You must check the trailer manual to see if the wiring is correct but normally the white wire is called the ground wire while the brown wire is used for tail lights. Buy a 4 pin wiring kit with wires at least twenty feet in length so it s long enough for your trailer.

1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above. 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.