Temic ACM2.1/AT25256 IROM TC1796 MERCEDES TRUCK checksum recalculation

Temic ACM2.1 — online firmware checksum recalculation. Compatible vehicles: BharatBenz, Claas, Mercedes Trucks, Setra. Upload MOD and ORI — result in a second, preview is free.

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TEMIC ACM2.1/AT25256 IROM TC1796 MERCEDES TRUCK — checksum fix online · CHIPOK

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TEMIC ACM2.1/AT25256 IROM TC1796 MERCEDES TRUCK
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Temic ACM2.1/AT25256 IROM TC1796 MERCEDES TRUCK — checksum recalculation

ECU manufacturerTemic
ModelACM2.1
ProcessorTC1796
MemoryIROM
FunctionChecksum recalculation
Compatibility6 brands · 21 models

Temic ACM2.1 — a control unit / TCU; the firmware checksums are recalculated after editing.

This unit is found on дизельных vehicles BharatBenz, Claas, Mercedes Trucks, Setra, Vervaet, Western Star (2012–2022) — a total of 21 models, among them BharatBenz HDT C, Claas Jaguar, Mercedes Trucks Actros, Setra S415 UL, Vervaet Beet Eater, Western Star 4700 Series.

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.

Supported vehicles (21)

BharatBenz 1
  • HDT C 2022 · 7.2 L Diesel · 286 hp
Claas 2
  • Jaguar 2017 · 2.8 L Diesel · 462 hp
  • Jaguar 2017 · 5.6 L Diesel · 585 hp
Mercedes Trucks 6
  • Actros 2015 · 0.7 L Diesel · 394 hp
  • Actros 2012–2016 · 2.8 L Diesel · 421–510 hp
  • Actros 2014 · 5.6 L Diesel · 578–625 hp
  • Atego 2013 · 5.1 L Diesel · 231 hp
  • Citaro 2016 · 7.7 L Diesel · 299 hp
  • Econic 2014 · 7.7 L Diesel · 231 hp
Setra 1
  • S415 UL 2015 · 7.7 L Diesel · 299 hp
Vervaet 1
  • Beet Eater 2015 · 5.6 L Diesel · 625 hp
Western Star 10
  • 4700 Series 2013 · 2.8 L Diesel · 355–513 hp
  • 4800 Series 2013–2014 · 2.8 L Diesel · 355–476 hp
  • 4900 Series 2013–2014 · 2.8 L Diesel · 355–476 hp
  • 4900 Series 2013 · 4.8 L Diesel · 461–513 hp
  • 4900 Series 2013–2014 · 5.6 L Diesel · 481–609 hp
  • 5700 Series 2013–2014 · 2.8 L Diesel · 355–476 hp
  • 5700 Series 2013 · 4.8 L Diesel · 461–513 hp
  • 5700 Series 2013 · 5.6 L Diesel · 481–609 hp
  • 6900 Series 2013 · 4.8 L Diesel · 461–513 hp
  • 6900 Series 2013 · 5.6 L Diesel · 481–609 hp

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