This means that when you apply the brakes or switch on the signals the lights of the trailer should mirror these signals. Various connectors are available from four to seven pins that allow for the transfer of power for the lighting as well as auxiliary functions such as an electric trailer brake controller backup lights or a 12v power supply for a winch or interior trailer lights.
Trailer Light Wiring Hack Getting Stop Tail And Indicators 3 Light From 2 Light Units
Trailer light socket diagram. Connect the jumper wire to one of the pins in the trailer socket. Wiring diagrams 27976 views. A continuity tester contains a light bulb and a battery. Lets see what types of connectors the trailer light wiring industry uses today. This has now been replaced by 13 pin euro plugs on all new caravans. Plugs trailer side and sockets vehicle side are available in all standard formats and can be spliced into your existing tow wiring.
In the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest. While the basic configuration is a 4 way flat connector that features one female and three male ends you may come across connectors with up to seven pins for additional functions that require wiring including electrically actuated brakes power source for a winch etc. This is the standard uk wiring of a the normal socket and plug otherwise known as 12n. If you are rewiring your trailer completely check out our trailer rewiring guide. Below is a diagram for the original plug and socket showing the functions of each pin. By law trailer lighting must be connected into the tow vehicles wiring system to provide trailer running lights turn signals and brake lights.
The 7 pin n type plug and socket is still the most common connector for towing. Close up of a continuity tester. Uk trailer wiring part 2 lights and 7 pin socket duration. This helps you to communicate with other drivers wherever you are going. Use the 7 pin connector anyway see below and just leave out the last 2 wires. If your truck has a built in 7 pin socket but you only need 5 of the pins.
7 pin trailer wiring diagram harness duration. Find the trailer light wiring diagram below that corresponds to your existing configuration. Removing a trailer hitch ball. Trailer wiring diagrams trailer wiring connectors. The diagram below shows the view from outside the vehicle socket under the flap and from inside the trailer or caravan plug. The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector.
Trailer electrical connectors come in a variety of shapes and sizes. When you buy a trailer the on board power supply should be connected to the vehicles via a plug or socket. Modern cars use a converter for this. This supplies power to the road lighting of your trailer or caravan. The bulb lights when a circuit is good.