Xhorse Multi Prog read and write 2010 BMW F10 Bosch EDC17CP45 ECU on bench successfully. DPF, EGR, and Swirl Flaps OFF.
The Hardware: Bosch EDC17CP45 ECU
It is a Bosch EDC17CP45 ECU. After the ECU was removed from the vehicle, we prepare to read it with Xhorse Multi Prog Programmer.
Read the ECU:
The first critical step is to read the original data from the ECU’s memory. Connect the Multi-prog programmer and successfully read the data from both the EEPROM and the Flash memory. While the process was somewhat slow, it was completed without issues.
Write ECU:
The original data files were sent to a calibrator—a specialist who modifies the software to disable the target systems. Once the modified “tune” file was received, it was time to write it back to the ECU.
The Multi-prog programmer was reconnected. After a connection and identification process that took about a minute, the ECU was ready. The new file was selected, and the writing process began. The write operation was notably faster than the read.
A key concern when reading and writing ECUs is the “checksum”—a value that ensures the data integrity. The ECU’s software will not run if the checksum is incorrect after modification. The Multi-prog programmer handled this correctly, reading the data and producing a file with a valid checksum.
Installation and Testing
The final result was a successfully tuned vehicle. The engine ran smoothly, and the emissions systems were officially “off,” accomplishing the goal set out at the beginning of the project.