12n Trailer Socket Wiring Diagram. WIRING DIAGRAM FOR SELF SWITCHING RELAY ON 12S SOCKET. The arrangement of pins and tubes is also different to prevent accidental connection of the wrong plug to the wrong socket.
The reason for this is that a 12N powers the indicators brake lights fog lights and side lights. The arrangement of pins and tubes is also different to prevent accidental connection of the wrong plug to the wrong socket. Check and test the fuses on all circuits.
Distinguish it from the 12N one and the associated socket has a cover flap in grey or white.
Check and test the fuses on all circuits. 12N 7pin Trailer Caravan Lighting Wiring Diagram This is the standard UK wiring of a the normal socket and plug otherwise known as 12N. TOW BAR WIRING DIAGRAMS 7pin Socket Wiring 12N LEFT TURN Target Business Centre Bircholt Road Parkwood Ind. The diagram below shows the view from outside the vehicle socket under the flap and from inside the trailer or caravn plug.