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Bosch MEVD17.2.6 - TC1797

Bosch MEVD17.2.6 - TC1797 FAQ & Solutions

Bosch MEVD17.2.6 - TC1797

Errors

A quick overview of potential issues encountered with the Bosch MEVD17.2.6 control unit and their immediate solutions.

Files not found

Occurs during OBD protocols when the virtual read file is missing from the server.

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Checksum is invalid. error code : 0x00000001

Indicates data integrity discrepancies often caused by previous third-party modifications.

View Solution →

Concerns vehicles from

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Files not found

Method: OBD / Recovery: Bench

Issue: The software is unable to locate the required original file on the bFlash server during an OBD operation.

Solution
  • Switch the communication method to BENCH read.
  • Extract the full flash content directly from the ECU pins.
  • Send the resulting file to Contact our technical support so it can be added to the server database.
To understand more

Virtual reading relies on a pre-existing database of original files. When a specific software version is not yet indexed, a physical BENCH read is required to provide the server with the necessary binary data for future users.

Checksum is invalid. error code : 0x00000001

Method: BENCH

Issue: The ECU detects that the file structure or the checksum mathematical signature does not match expected values.

Solution
  • In most BOSCH MEDC17 cases, you can safely ignore this warning and proceed with programming.
  • Verify if the ECU has been previously tuned by another tool, as this often triggers the flag.
  • If the error reappears during the actual writing process, stop immediately and Contact our technical support.
To understand more

A checksum is a security measure to ensure data integrity. This error typically occurs when a different tuning tool has calculated the checksum using a different algorithm, causing bFlash to flag a potential mismatch even if the file is technically functional.