Towing electrics

[Chrissan]

Hi all ,

I have 2005 pathfinder T spec (UK).
Already had a tow bar on and 13 pin socket, when i bought the car, Nissan fitted, all the electrics from the 13 pin plug work apart from the pin that keeps the fridge cool when hooked up to the car, doesnt seem to have any voltage to it....

Any ideas which fuse its connected to or could you advise me of some fault diagnostics, where to look for the problem.

Many thanks

Chris.