Dreaded ECU Warning Light

So I went out for a drive in the 612 this evening - nothing special, just a little "me" time - and the ECU failure warning light telling me to go to the dealer came on about a mile out while doing some 6/10 cornering around a cloverleaf. There was no noticeable degradation or stumble in performance, just the damn light. I've read a few threads and hoped that shutting it off and restarting might reboot the system but I'm still getting the light and engine pictogram. The dealership is 240 miles away - any suggestions? This'll definitely have a chilling effect on leisure drives until it's resolved.

 

Thanks Terry - figured I'd hear from you! I had checked some of the old threads on the subject before posting and opinions seemed to range from fuel sensor failure to a loose gas cap (not the case here) to just a Ferrari "thing" that might resolve itself but would come back for an occasional visit like an old friend. I'm a little concerned about the battery cut-off solution because 1. the battery placement intimidates me 2. if I get it wrong, the car is immobile and it becomes a VERY big deal, and 3. the forum is full of anecdotes where windows stopped working, dash electronics went down, and miscellaneous electronic gremlins surfaced. It's drivable at the moment but that engine pictogram is a major distraction and stressor. If there's any substance to the fuel sensor theory, it is entirely possible that mildly punching it on the ramp caused some kind of a fuel transfer issue. I'll see how she acts this morning and top off the tank. If that doesn't work do you think it's the kind of thing a local indy could handle or am I in for a drive to Boardwalk or Norwood?

 

Aftermath...turned out the CEL was an ambient temperature sensor. Terrific local indy shop (shoutout to RS Autohaus) read it and cleared it and I was back on my way in 15 minutes. Three miles later, I had a power steering hose burst so back I went - if it has to happen, that's probably the best you could hope for. Three hours and 135 bucks later I was on my way and they even fixed an intermittent door rattle unbidden. SO glad it didn't happen on a road trip - I think I dodged a bullet and they'll definitely be doing my next annual!