Skip to content
English
  • There are no suggestions because the search field is empty.

Bosch EDC17CP09 - TC1796

Bosch EDC17CP09 - TC1796

Errors

A quick overview of known issues and links to their solutions.

Checksum is invalid. error code : 0x00000001

Indicates an incorrect file checksum, often from a previous tune, but you can usually proceed with writing.

View Solution →

Concerns vehicles from

BMW Logo

Checksum is invalid. error code : 0x00000001

Method: BENCH

Issue: bFlash reports that the file's checksum is invalid during identification or before writing to the ECU.

Solution
  • In most cases with Bosch MEDC17 ECUs, this warning can be safely ignored. You can proceed with the programming operation.
  • If the programming fails and shows the same error during the write process, please Contact our technical support for further assistance.
To understand more

This error typically occurs when the ECU's software has been previously modified by a different tuning tool that calculated the checksums differently. bFlash detects this discrepancy as a safety measure. However, it often does not prevent a successful write because the core data is still valid, and the ECU can operate correctly with the new file.