I have recent purchased a used 2006 model XC90 and the dealer fitted (free of charge) a Volvo detachable towbar system with a 13 pin euro connector (complete with 7 N&S adapter lead), however I have noticed that although the lights works fine, I can not get the fridge in my caravan to work whilst connected to the cars 12v system.

The dealer claims that the tow bar is wired up correctly and it must be the caravan, so I have checked the caravan with my old Honda CRV and using the twin electrics on the CRV the caravan fridge works fine on 12v

So has anyone else had this problem with a Volvo fitted tow bar, and if so how did you overcome it?

Regards, Bill