thanks for the help guys. I've had a look at the other end of the cable on the manifold side, and the cable is there, it has a black piece of plastic on the end, that presumeabley connects onto the wheel bit? The end of the cable is just flapping in the breeze, and it isn't broken. So i presume there is nothing wrong with the box, just the manifold side? No warning lights have come on.

Cheers
Rich