Beags

I've a major problem with my beloved S type, the instrument panel is lit up like a Xmas with every warning possible ie Brake Fault, GearBox Fault restricted performance etc with at instrument lights showing, plus she often doesn't start at all. Jaguar themselves are baffled. I've had the main ICU removed and checked and that ok..... Help !! I don't want to say goodbye as she's been a fantastic car for 7 years.