Volvo Diesel Bosch ECM4 (EGR DPF SCR DTC OFF). Calibration module for Volvo diesel ECUs in the Bosch ECM4 family. It supports EGR, DPF, AdBlue/SCR and related DTC deactivation. Other Volvo ECU families are not supported. The module runs in ProbyteEdit; write the modified file to the ECU with a separate programmer. A ProbyteEdit license and USB dongle are required.