MMCFlash – 12 Module, VAG Simos 8.XX, PCR2.1

MMCFlash – Module 12 (VAG Simos 8.xx / PCR2.1) is a software activation/module used with the MMC Flash tuning platform for ECU reading and writing on specific Volkswagen Group petrol and diesel ECUs.

Main Functions

This module typically enables:

• ECU identification (ECU ID)
• Read / clear DTC (fault codes)
• Virtual reading (no full bench read required in some cases)
• Map area read & write (calibration data)
• Checksum correction
• ECU unlocking (BSL mode required for some versions)