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Bosch EDC17C06 - TC1766

Bosch EDC17C06 - TC1766 Errors & Solutions

Errors

Quick access to common issues and solutions for the Bosch EDC17C06 control unit.

Checksum is invalid. error code : 0x00000001

This error indicates an incorrect checksum, often occurring after the ECU has been modified by another tool.

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Concerns vehicles from

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Checksum is invalid. error code : 0x00000001

Method: BENCH

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

Solution
  • In most cases, you can safely ignore this warning and proceed with the programming operation.
  • If the programming process fails with the same error, the file may be corrupt. Please do not attempt to write it again.
  • In case of failure, Contact our technical support for assistance.
To understand more

This warning appears because a previous modification by a different tool left an invalid checksum in the ECU's memory. bFlash often corrects this automatically during programming. However, if the error persists during the writing process, it suggests the file corruption is too significant for an automatic fix and requires manual intervention.