i have left my 456GTA for 9 months untouch and it just coudn't start even with new battery replace. I will follow Rik's steps to start the horse. One addition question is, what is the sequence ( flashing pattern) of the immobiliser red light (indicator) like, which located at the center console.
when the immobiliser is on = ?
when the immobliser is off = ?
Your prompt is highly appreciated.