How To Wire A 3 Pin Trailer Plug

Wiring a 7 pin plug on your truck can be a little intimidating when you are looking at it from outside the box.

How to wire a 3 pin trailer plug.

The white wire must be attached to the trailer in order to ground and power the lights. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above. Following the standard method for wiring a trailer connector is vital to the safety of your vehicle while towing. 4 pin trailer wiring diagram.

Installing the 4 pin trailer wires. 807 3 way flat trailer wire connectors 3 pin traile plug connector 36inch for led brake tailgate light bars hitch light trailer wiring harness extension connector 3 way flat socket 4 3 out of 5 stars 3. This type of connector is normally found on utvs atvs and trailers that do not have their own braking system. Start by cutting the white wire and attaching it to the trailer frame.

Use this 4 pin trailer wiring diagram to properly wire your 4 wire trailer plug. How to wire a 7 pin trailer plug by robert moore. Note that this type of 4 pin connector is less common that 4 pin flat connector. Connecting the wrong color wires will result in mismatched taillight functions and confusion on the road.

Most of us aren t electricians but that doesn t mean wiring a trailer or replacing corroded wiring is beyond us. 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. Above we have describes the main types of trailer wiring diagrams. 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.

7 way plug wiring diagram standard wiring post purpose wire color tm park light green battery feed black rt right turn brake light brown lt left turn brake light red s trailer electric brakes blue gd ground white a accessory yellow this is the most common standard wiring scheme for rv plugs and the one used by major auto manufacturers today. One to two feet is good. Traditional trailer with brakes use a 5 pin connector. Get it as soon as thu sep 24.

Attach the ground wire to the trailer. Free shipping on your first order shipped by amazon. Strip the wire end back about a 1 2 inch and insert it into a terminal with a heat shrink tube. There is a lot wiring that you have to tie into your truck s wiring harness but it is easier to do than it seems.

We ll walk you through the wiring process it s easier than you think. Yellow and green are for left and right turns and braking.