The brown wire, which is responsible for handling the taillights, leads to both the light bulbs at the back, and the yellow wire runs back to the left to indicate a left turn. The green runs at the back to connect with the right turn. Trailer Wiring Diagram Īs you can observe from this 4-pin trailer wiring diagram, the white wire is connected to the ground. The different types of trailers are as follows: They are used for transporting goods, materials, boats, camping utilities, etc. The trailer has several applications depending on the user and what kind of services one might be looking for. The minimum output connector is the 4-Way connector, providing electrical output to the trailer's signals and ground and tail lights. To make the trailer’s electric output work, we use different connectors to ensure that depending on the outputs we require. The trailer is attached to the primary vehicle by the appropriate hitch. They can also be recreational vehicles depending on their type.Ī trailer is a separate extension vehicle that needs to be linked with the primary vehicle. In this demonstration, we use a KT Clear Trailer Plug, however the wiring process is exactly the same for any other Trailer Plug.A trailer is an unpowered vehicle and is supposed to be towed by another vehicle: SUVs, pickup trucks, or jeeps commonly tow trailers. See below for complete Video Demonstration of ‘How to Wire Up a 7 Pin Trailer Plug or Socket. Your 7 Pin Trailer Plug is now wired up and ready to be used. Replace Cable Gland, Replace Trailer Plug or Sockets outer casing and tighten screw cap. If your Trailer Plug or Socket uses a Saddle Device (a Device that holds wiring in place), Replace saddle device and tighten screws to secure cable, using a Phillips Head Screw Driver.Ĩ. Tighten screws while holding cable in place.ħ. Match each coloured wire to the appropriate circuit (as per relating wiring diagram provided above) and place the wire end beneath the correct screw. If your Trailer Plug or Socket also contains a Saddle Device, remove this using the Phillips Head Screw Driver.Ħ. Using a Phillips Head Screw Driver, Loosen but do not remove the 7 screws. Take your 7 Pin Trailer Plug or Socket and Unscrew the Cap, remove the Cable Gland and Outer Casing.ĥ. Twist the ends of the cable to ensure that the cable stranding does not separate.Ĥ. (We recommend a Code: KTES – KT Easy Wire Stripper)ģ. Start by stripping the ends of your Trailer Cable by 5mm using a Wire Stripper. Use this as a guide to which wire colour matches with each circuit.ħ PIN SMALL ROUND TRAILER PLUG WIRING DIAGRAMħ PIN SMALL ROUND TRAILER SOCKET WIRING DIAGRAMħ PIN LARGE ROUND TRAILER PLUG WIRING DIAGRAM:ħ PIN LARGE ROUND TRAILER SOCKET WIRING DIAGRAM:Ģ. Identify what type of 7 Pin Trailer Plug or Socket you are using from the below Wiring Diagrams. Steps to Wiring up your Trailer Plug or Socket:ġ. We recommend the following Types of Trailer Cable: Click on Table To Enlarge You want to ensure that you have the correct Trailer Cable for your installation and the correct length depending on how long your Trailer is. The length required can be easily cut using your side cutters or cable cutting tool. The below chart demonstrates the more technical specifications of each cables. 5 Core does not include the Blue and Black Cables that are traditional used for Blue ( Electric Brakes ) Black ( Aux/ Reverse ) Most trailers particularly box and standard box trailer use 5 Core Trailer Cable.
There are 2 main types of Trailer Cables that are used for wiring your trailer, these are 5 Core and 7 Core. What Type of Cable Should I use to Wire up a 7 Pin Trailer Plug or Socket? Product Code: KT703M 7 Pin Flat Metal LED Trailer Socket Cable Cutters/Side Cutters (KT Product Code: KT32034).We recommend having the following tools handy before moving forward with your installation. What Tools will I require to Wire up a 7 Pin Trailer Plug or Socket? Generally it is the same process with all brands of 7 Pin Trailer Plug or Sockets, however in this demonstration, we will be using the KT Range of Trailer Plugs & Sockets. Wiring up a 7 Pin Trailer Plug or Socket is a simple and easy process, especially with the following step by step instructions and video demonstration provided.
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