Trailer Wiring Diagram Europe. If you have a 13 pin socket fitted to your vehicle adaptors to plug in so you can use a normal 7 pin plug are available. Wire diagram trailer on cr4 thread wiring harness conversion u s to european boat trailer lights boat trailer tractor trailers.
7 pin s type plug and socket wiring diagram. Some trailer builders just connect this wire to the frame then connect the ground from all the other lights and accessories to the frame as well. If you look at a socket or plug you should be able to see the pin lables 1 7.
The second diagram shows two brake lights two indicators two side lights and a fog light.
The 7 pin flat plug will fit into a 12 pin flat socket and work perfectly. Also it must connect with things if included that use the aux power and back up lights too. These are the most modern style of trailer electrics all eu caravans post 2008 are fitted with 13 pin electrics as standard. 12 pin flat this is an extension of the 7 pin flat.