This module is designed for reading and writing MCM2.1 D4/D5 ECUs installed in Mercedes-Benz trucks.

The ECU can be accessed either without opening the module in OBD-Full mode or with opening in BSL mode. Identification and error reading/reset functions are also available.

The module automatically recalculates the calibration coefficients of written calibrations.
The module allows for complete reading and writing of the ECU contents.