Wiring a tow bar?

Terminal Colour 12N 12S
1 Yellow LH Indicator Reversing light
2 Blue Rear fog lamp Battery Charging
3 White Common return Common return
4 Green RH Indicator Power supply
5 Brown RH Side / Tail Sensing device
6 Red Stop Lamp Refrigerator
7 Black LH Side / Tail Spare

Roger
April 2008