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

Bosch ME17.2.4 - TC1793

Bosch ME17.2.4 - TC1793 FAQ

Bosch ME17.2.4 - TC1793

Errors

Quickly identify and resolve common communication issues encountered with the Bosch ME17.2.4 control unit.

7F-31-72

This error occurs when the ECU password has been modified, preventing standard programming access.

View Solution →

Concerns vehicles from

BMW Logo

7F-31-72

Method: OBD / Recovery: Bench

Issue: The user is unable to perform programming tasks via the OBD port because the internal security password has been altered.

Solution
  • Locate the original backup file or the factory read of the ECU.
  • Verify if you have a Boot or Bench backup performed prior to the password change.
  • If a backup is available, Contact our technical support so we can attempt a manual password extraction.
  • Ensure you provide the full logs and the error screenshot in your support ticket.
To understand more

The 7F-31-72 error indicates that the security handshake between the tool and the ECU failed. This typically happens when another tuning tool or a dealer update has changed the TP2.0 or UDS password within the Infineon Tricore processor, rendering standard OBD protocols ineffective.