Since I bought the car I'm using the 'Master' key and yesterday I tried to memorize a couple of new keys for my car, using the 'Master' key and following the procedure indicated in the 'workshop manual'.
When I insert the 'new' keys, the 'Alfa CODE' warning light on the dashboard never goes off and I can not memorize the keys.
Engine start with the 'Master' {brown} key all the time without any problem but I can not make it start with the new keys - as it should be with 'unknown - unmemorized' keys!

I can not understand why the 'Alfa Code' warning light does not go off as mentioned on the manual!
Does anyone has any idea?

The only 'think' I suspect is that I'm using the FIAT Coupe 16VT eprom with 'IMMO' and that might be the problem.