Interesting question, after having a flat battery, the cluster has some weird display going on. Odometer reads 555555 and there is a big X in the display along with the F1 fault light on however it's a manual car. Has anybody encountered this before? Taking it to ferrari in the morning to see what the sd2 has to say about it...
Battery died on Ferrari 360 and now check engine light shows a big X - FerrariChat.com Take a look here, this chap had the same problem and there's a fix detailed.
You will find that a battery with low voltage will cause all sorts of weird issues. Keep it on a tender. Alan
The Big X can be fixed with SD2/3 the 555555 may be a send away job to fix. Don't even think about starting a 360 with a low flat battery.