4 Wire Flat Trailer Plug Wiring Diagram

Traditional trailer with brakes use a 5 pin connector.

4 wire flat trailer plug wiring diagram. Adapts 4 way flat to both 7 way round and 4 way flat includes integrated test lamps which display proper connections shows if the wiring on your trailer isn t working properly burned. Trailer wiring diagram flat four trailer wiring diagram flat four people comprehend that trailer is a vehicle comprised of very complicated mechanics. Attach the ground wire to the trailer. Check with a test light or vom.

A 4 way plug connects your trailer and tow vehicle and provides the required running lights turn signals ground and brake lights. The black sometimes red 12v and blue electric brakes wire may need to be reversed to suit the trailer. Strip the wire end back about a 1 2 inch and insert it into a terminal with a heat shrink tube. 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.

Cut the white wire short enough for attachment to the front of the trailer near the connector plug. A wiring diagram is a streamlined traditional pictorial representation of an electrical circuit. We ll walk you through the wiring process it s easier than you think. Ie pins 4 and 1 are reversed and 6 and 7 and 2 and 5.

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. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above. 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. It shows the components of the circuit as streamlined shapes and the power and signal connections between the devices.

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. So auto sparky fitted a new 7 pin flat connector in the rear of my ranger. 6 way systems round plug. Yellow and green are for left and right turns and braking.

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. Most of us aren t electricians but that doesn t mean wiring a trailer or replacing corroded wiring is beyond us. Assortment of 5 wire to 4 wire trailer wiring diagram. Installing the 4 pin trailer wires.

One to two feet is good. This automobile is designed not only to travel one location to another but also to take heavy loads. Start by cutting the white wire and attaching it to the trailer frame. The white wire must be attached to the trailer in order to ground and power the lights.

This multi function vehicle end connector converts any 4 way flat vehicle end plug to a combination 7 way outlet and 4 pole flat outlet. I opened up the new connector and it s wired backwards.