Problem:
Got his error when trying to read this Alfa Romeo Giulietta with foxflash tool in OBD.
Solution:
You have to watch carefully that ecu mounts yours, because there are 1.6 105 with edc16c39 and 1.6 105 with EDC17.
If it is an EDC17 ECU and you bench it.
If it is an EDC16C39, check the voltage. Little low voltage. Need 13V minimum. Also C39 not always work obd. Better bench it.