Pcmflash 1.20 ((full)) (2025)

For most vehicles (2000–2020), the software reads the ECU via the diagnostic port. Version 1.20 improved the handshake speed for and GM E38/E67 ECUs , reducing read times from 12 minutes to under 4 minutes for a 4MB file.

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Includes features for reading/writing FLASH and EEPROM memory, cloning ECUs, clearing fault codes, and automated checksum correction for most binary files. Interface Compatibility: Operates using compatible interface adapters, such as the Scanmatik 2 PRO Usage & Security Downloads - PCMflash pcmflash 1.20