The software seamlessly integrates with various microcircuit programmers, such as: USB Xprog Carprog Wellon/Galep . 5. Checksum Generation and Validation

Unlike generic OBD2 scanners, the TachoSoft tool works at the firmware level. It interacts directly with the (Electrically Erasable Programmable Read-Only Memory) chips found on instrument clusters, ABS modules, and gearbox control units. The software calculates checksums automatically—a critical feature, because an incorrect checksum can cause a mileage error (displaying "Error" or "------") or even brick the cluster.

Tachosoft Mileage Calculator 231 is a specialized software utility designed to read, calculate, and correct odometer values on a wide range of vehicles. Unlike generic OBD2 scanners that only read engine fault codes, Tachosoft dives deep into the chips found on instrument clusters.