4 Wire Trailer Connector Wiring Diagram

Start by cutting the white wire and attaching it to the trailer frame.

4 wire trailer connector wiring diagram. One to two feet is good. 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. Round 1 1 4 diameter metal connector allows 1 or 2 additional wiring and lighting functions such as back up lights auxiliary 12v power or electric brakes. The black sometimes red 12v and blue electric brakes wire may need to be reversed to suit the trailer.

Trailer electrical connectors come in a variety of shapes and sizes. A wiring diagram is a streamlined traditional pictorial representation of an electrical circuit. The white wire must be attached to the trailer in order to ground and power the lights. Traditional trailer with brakes use a 5 pin connector.

Assortment of 5 wire to 4 wire trailer wiring diagram. Check with a test light or vom. Strip the wire end back about a 1 2 inch and insert it into a terminal with a heat shrink tube. Attach the ground wire to the 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. Cut the white wire short enough for attachment to the front of the trailer near the connector plug. It shows the components of the circuit as streamlined shapes and the power and signal connections between the devices.

6 way systems round plug. Installing the 4 pin trailer wires.