Bosch ME73H4 request id diagnostics read kess

[Makx]

Hello all, thanks in advance for the explanations that I ask from a beginner:

I ran with some difficulty to this reading at the counter of ecu Bosh ME73H4L001 removed from lancia y 1.2 16v

I would like someone to explain to me what do you mean in the window "you want to use ids diagnostic" that appeared to me before the reading.

if selezionavo "OK" never allowed me to read with "no" I managed to do it.

What I would of got different in the file read?
did he need another pin to the output on the ecu for the code flashing?
some other mass?