MasterX · Checksum correction

Automatic checksum correction, Bosch EDC17 / MED17

MasterX recalculates the ECU checksums automatically after every modification, no external tool, no manual step. Coverage spans 96 manufacturers and 361 EDC17 / MED17 ECU variants across 64 brand groups.

Automatic checksum correction is part of the Ultimate+ license, applied automatically to every supported EDC17 / MED17 file. Not listed? Our team handles it manually, 24/7. Ultimate+