Good point Peter, and good general advice for aspiring DIY auto electricians, for which I thank you. As you say, many main dealers don’t employ real auto-electricians these days – although conventional diagnostics of course don’t always work, what with Can Bus and all that… In many situations, you’re not looking for power or no power, but whether there’s any signal, and is it the right signal? There was a solution to the Clio problem, as we now know, and it wasn’t really a fault, but a crazy set-up, where they effectively intended the air conditioning to be permanently in operation. Hardly a justification for a replacement car, I feel though. It’s a bit like the car (no names, no pack drill) that I’m driving just now – I simply can’t find any way to stop the radio turning on every time the engine starts up. I can minimise the volume, or mute it, but unless I turn off everything else – satellite navigation etc., off, then the radio always seems to start up at an audible volume setting. Aaaaaargh.