Hi There
A Couple of pieces of info to corroborate Adria_B
The 12S socket is to provide power to the trailer / caravan and is controlled by the split charge relay which is fitted within the towing vehicle.
Some info plagiarised straight from the internet gives a description, and from a different site the wiring connections.
I have wired my trailer using this info and all works well, although I haven't taken the last step of charging the battery - Yet !
Good Luck
Maurice
VRF04 Twin Fridge/Charger Kit This split charge relay charges an auxiliary battery and supplies power to the fridge whilst the car engine running. Connected to the 12S socket for charging the caravan battery and running fridge whilst touring. http://www.trailerpartswarehouse.co.uk/towbar_electrics/towbar_relays.html
Pin
Number |
Colour |
Function |
1 |
Yellow |
Reversing light |
2 |
Blue |
Battery Charging Via relay in car |
3 |
White |
Common Return |
4 |
Green |
Power feed for internal 12v equipment (not fridge) |
5 |
Brown |
Spare |
6 |
Red |
Refrigerator (via relay in car) |
7 |
Black |
Spare |
http://www..co.uk/electrics_wiring_code.htm
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