EEPROM CS1 & CS2 Checker v1.1 for Bosch ECUs
Introducing the EEPROM CS1 and CS2 Checker v1.1, a specialized free utility designed to verify the integrity of Bosch ECU EEPROM dumps. This tool is essential for technicians and tuners working with EDC17, MEVD, and MEV series ECUs, ensuring that the data has not been corrupted during reading or writing.
A correct checksum is vital for the proper functioning of the engine control unit, and this software provides an easy way to validate it.
Key Features
How to Use
Future Development & Plans
This project is the start of a new series of tools. The developer has announced exciting future plans, including:
A Note for Advanced Users:
It's possible that the checksum algorithm used in this software may also work for other car brands, but this has not been tested.
System Requirements
Disclaimer
This is a diagnostic and verification tool. The user is responsible for correctly interpreting the data and for any modifications made to the EEPROM files. Always work on a backup of your original file.
VirusTotal Check: https://www.virustotal.com/gui/file/585ae580274227f4d4963af6856c3049c69fa31287e93b5e59647e2dc3bab3bd

Introducing the EEPROM CS1 and CS2 Checker v1.1, a specialized free utility designed to verify the integrity of Bosch ECU EEPROM dumps. This tool is essential for technicians and tuners working with EDC17, MEVD, and MEV series ECUs, ensuring that the data has not been corrupted during reading or writing.
A correct checksum is vital for the proper functioning of the engine control unit, and this software provides an easy way to validate it.
Key Features
- Automatic Checksum Validation: The primary function is to check and verify the CS1 and CS2 checksums within an EEPROM file.
- Error Detection: If the software detects a mismatch or error in the checksums, it will clearly notify you and show the exact hexadecimal addresses of the CS1 and CS2 blocks for easy manual inspection and fixing.
- Wide File Support: The tool supports various EEPROM file sizes, including 32KB, 64KB, 128KB, and 192KB.
- Manual Block Check: For advanced users, there is a manual check window where you can paste a 256-character hex block to check its CS1/CS2 values independently.
- Online Function: The software includes an online check function for more possibilities and future integrations.
- Save Reports: You can save the analysis reports for your records.
How to Use
- Load your EEPROM file using the "Open File" button.
- The software will decode the bytes and validate the file size.
- Press the "Checksumme check" button.
- The tool will display all possible Block IDs and the status (OKEY! or Error) of their CS1 and CS2 checksums on the main screen.
Future Development & Plans
This project is the start of a new series of tools. The developer has announced exciting future plans, including:
- Adding an automatic fix function for checksum errors in future updates.
- Integrating ISN Change and flash checksum functions into related software.
- Creating new, separate software for functions like "DTC OFF", "Lambda OFF", and "DPF/EGR OFF".
A Note for Advanced Users:
It's possible that the checksum algorithm used in this software may also work for other car brands, but this has not been tested.
System Requirements
- Operating System: This software was tested on Windows 10 Enterprise LTSC (2019) and should be compatible with other recent Windows versions.
Disclaimer
This is a diagnostic and verification tool. The user is responsible for correctly interpreting the data and for any modifications made to the EEPROM files. Always work on a backup of your original file.
VirusTotal Check: https://www.virustotal.com/gui/file/585ae580274227f4d4963af6856c3049c69fa31287e93b5e59647e2dc3bab3bd
