Towbar wiring diagrams 7 pin 12n type plugs are only used for road lighting these are the most popular however they are slowly being replaced by 13 pin plugs and below we have the difference between these plugs. Caravan wiring chart showing all the connections in the 13 pin euro plug cable colours and cable sizes for interior exterior.
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Towbar wiring diagram 13 pin. The connection is secure and the lead is unlikely to fall out. Take the 13 core cable into the boot through a 916 hole into which you have inserted the grommet provided. Wiring diagram for a 13pin euro trailer plug. Wiring diagram for a 13 pin tow bar socket and plug. Twin electrics is a 2 plug system which combines the single 7 pin 12n electrics socket with a 12s electrics socket. Its purpose is to provide advice on the correct specification of a towbar wiring system to allow an already installed system to be checked for correctness to diagnose common faults and problems in service.
This socket is used in mainland europe and from 2008 all caravans manufactured in europe will be wired up with 13 pin plugs. This is the continental style electrical connection. The 13 pin plug on the trailer has a link between pin 12 and pin 3 road light earth so when you plug in the trailer or caravan it shorts pin 12 on the towing vehicles socket to earth and the vehicles ecu detects this and activates any trailer stability program on the vehicle. Towbar wiring towbar wiring 13 pin. Menu search 01392 216336 faq contact delivery basket. 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.
For towbar wiring and should not be used as such. 12 s are used for reverse lights and other lights within the trailer refrigerator etc however these have been replaced by 13 pin. Whilst coupling up the 13pin plug to the connector takes a bit of getting used to as it requires a twist connection it does offer a few advantages. Many caravans built after 2008 have the new 13 pin connector for the electrical connections to the car. Towbar wiring guides. You will need twin electrics if you require more power than what a single 7 pin socket can provide on a pre 2008 manufactured uk caravan post 2008 uk caravans are fitted with 13 pin connectors.
Alternatively we are willing and able to look at any wiring problem here at our workshops. The pins usually have a small screw to retain the wire on the back. Find the vehicle wiring harness and connect the 7 core cable as indicated in chart a using the connectors and earth tags provided. Below is a diagram of a 13 pin euro trailer plug with coloured pins as they are wired. Fitting instructions for all 13 pin kits and relays. On the rear of the pins the numbers are marked in the plastic next to each pin.
Wiring diagram for 12n type 7 pin black socket or plug for vehicle road lights. Both 12n and 12s electrics are contained within the socket which has 13 pins rather than 7. The full iso standard is iso 1446 for 13 pin connections.
Gallery of Towbar Wiring Diagram 13 Pin
