Hi, Ian, Thanks again for the quick reply. You may have hit the problem.. I bought an airbag some time ago, and put it on, not knowing that driver's airbags are different depending on whether you have a passenger one or not. (The car is definitely a one bag car - x1 on the windscreen).I threw the original away, so I do not know the original number. At present, I'm changing the back axle, so I cannot take off the steering wheel, in order to see the bag number; My problem is that the airbag light comes on and stays on after its initial on/off sequence. WikiFord codes suggest its a earth leak or the bag or module are not connected/incompatible. I'll get back to you when I can see the bag number, if that's OK.
Peter