Hi all. Sorry for yet another FBH drama but I am having problems with my FBH. It hasn't started at all from timed heat or cold engine start (below 5 degrees).
I have webasto software from my D3 days but have no clue on how to connect to my FF.
I have iid tool but only gives prime fuel option which does work and a test option which reports back successful but doesn't start heater.
One other thing is in faults menu fbh ecu is noted as not fitted???
Anyone any ideas?

Thank you