Thanks for your feedback and if you have some wiring diagrams that would be great. Is a DVM some sort of volt meter? Have a sealy basic thing but only really use it to check battery voltage. Wouldn't mind have a go myself but think its a bit technical for my brain to cope with. It's a pity because the car has just less than 40k on the clock but I might just end up selling it if I can't get it sorted and take a big hit on it. As for the cost, 1hr standard charge for plugging it in at £90 and another 1.5hrs taking off bits of trim etc. They say they spent a lot more time trying to find the problem but who knows! What area of wiring would you go to first, do you know if the wiring in a particular place gets a lot of movement? Car was ok when I first got it, I did a service, oil, filter, plugs etc. Also removed the wiper linkage/motor as it seized but didn't notice a problem until after, I think. It was a few months ago now. Thanks