Xhorse Multi Prog Read and Write Maserati BCM BSI MC9S12DG256 Read and write the Maserati BCM/BSI module with Xhorse multi prog successfully. MASERATI BCM Type: Magneti Marelli BSI Processor: MC9S12DG256 unsecured Read mcu, eeprom and flash successfully on bench mode. vvdi prog will also read this BCM.