Grand Prix ChiptuningCHECKSUM SERVICE
WINOLS · ECU FILE SERVICE

Checksums.
Every byte in order.

Upload your firmware. WinOLS handles verification and correction.

01 / FILE INPUT

Your firmware file

WinOLS offline

One file, when the module supports correction without the original.

WinOLS offline

ECU · CHECKSUM

Supported ECUs

Bosch EDC17 / MED17 / MDG1, Delphi DCM / MTxx, Denso, Hitachi, Siemens and Kefico. Explore the ECU families and file requirements.

Supported ECUs ↗
01

Upload firmware

02

WinOLS verification

03

Result and download