Bosch DCU17PC42 — online firmware checksum recalculation. Compatible vehicles: FIAT, Hyundai, Iveco, Mazda. Upload MOD and ORI — result in a second, preview is free.
The plugin is already selected. Upload your MOD and ORI firmware — you'll get the result in a second.
Bosch DCU17PC42 — a heavy-duty Common Rail diesel ECU (Iveco/MAN/DAF/Volvo) on the TriCore core; the checksums are recalculated after editing.
This unit is found on дизельных vehicles FIAT, Hyundai, Iveco, Mazda, Mitsubishi, Nissan, Opel, Renault (2015–2020) — a total of 12 models, among them FIAT Talento, Hyundai Grand Starex, Iveco Daily, Mazda 6, Mitsubishi L200, Nissan Nv300.
Recalculation is needed after any calibration edit — Stage 1 truck, AdBlue off, DPF off, EGR off, Limiter speed/RPM, DTC removal, Cold-start fix: the checksum no longer matches, and the ECU throws an error or refuses the firmware.
Upload the modified file (MOD) and the original (ORI) — the tool compares them, finds the affected regions and recalculates only the required checksums, leaving the rest of the calibration untouched. The result is ready in a second and free; downloading the fixed .bin requires registration in the portal.
Other checksum plugins from the same manufacturer — open any of them to recalculate the checksum.