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Bosch EDC17C42 - TC1767

Bosch EDC17C42 - TC1767 FAQ

Errors

Quick access to common issues and solutions for the Bosch EDC17C42 ECU.

Checksum is invalid. error code : 0x00000001

This error occurs when the ECU's data integrity check fails, often due to a previous modification by another tool.

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Checksum is invalid. error code : 0x00000001

Method: BENCH

Issue: The tool reports that the checksum is invalid when attempting to read or write to the ECU.

Solution
  • In most cases with this ECU, you can safely ignore this warning and proceed with the programming operation.
  • If the programming process fails and shows the same error, you will need assistance. Contact our technical support for help.
To understand more

This error typically occurs because the ECU's software has been previously modified by a different tuning tool that calculated an invalid checksum. While the tool correctly detects this discrepancy, the ECU itself might still accept the file, which is why programming can often proceed without issues.