Wiring diagram to convert caravan 13 pin plug to the 12s The wiring for these lights was connected through a 7 pin plug to the car that is commonly known as a "12N" connectiontime in between the indicators and rear fog light changes, people decided they wanted to replace the gas lights inside the caravan with 12 Wiring 12n and 12s caravan cables into single 13 pin euro Feb 05, 2012Hi guys i know this sounds like a silly question but here goes. i have recently changed my tow car from a Nissan Xtrail to a VW Passat, i had a tow bar fitted to the car prior to picking it up and thought i would future proof things by going down the 13 pin euro socket Route on the car. not a bad thing i hear you all say but instead of fiddling with silly adaptors and stuff i thought i would Wiring diagrams for 7 pin 12N 'N' type trailer lights 7 pin 12N wiring diagram. 12 N type plugs are used for road lighting only. This is currently the most popular plug used for towing as it does the lighting on most trailers and caravans. Towbar Wiring Guides : Electrical Wiring Guide for Towbars Towbar Wiring Guides . Listed below are some basic 12N and 12S type wiring diagrams that will help in vehicle wiring for both road lights and caravan internal electrics. Alternatively, we are willing and able to look at any wiring problem here at our workshops. WIRING DIAGRAM FOR 12N TYPE 7-PIN Black socket or plug for vehicle road lights Understanding Caravan and Tow Car Electrics | Caravan Some additional generic wiring diagrams for you to download and print off. Car & Caravan Wiring – PDF Document with drawings for both 12N/S and 13 Pin car and caravan wiring. List detailing the 12N, 12S and 13 Pin connections on a car or caravan plug and socket.[PDF] WIRING A VEHICLE FOR TRAILER TOWING - The Caravan Club There have been several variations in the wiring standards used for towcars and caravans over the years. Which system you need depends mainly on the age of the caravan you are planning to tow, and to some extent on where the caravan was made:- Caravan built before 1 October 1979 – Towcar needs a single 12N seven pin socket. Wiring Diagrams - Towing Centres UK Ltd Wiring Diagrams An important aspect of towbar fitting is the wiring which is required to power either your trailer lights or caravan internal electrics. This is often overlooked when booking a towbar or can be difficult to understand exactly what your vehicle requires if you have none or very little knowledge.