Meta immobiliser on 400se

[wedgemaniac456]

Evening all,I have a 400se,that has suddenly lost the flashing red immobiser light and now won’t start 🤣.I had the battery disconnected for a time.There is no fob with my system, and searching around no immobiliser box etc I can find,unless it’s hidden behind the dash 🤣😂.Anybody else had this problem? Any area to check?
Tia