DEUTSCHE VERSION
The Calibration Verification Number (CVN) is an important identifier used in vehicle diagnostics. It is designed to ensure that vehicle control modules are properly calibrated and comply with legal regulations. The CVN can be read with any diagnostic scanner, allowing technicians to check the status of the vehicle control module.
The CVN is a type of digital signature or checksum consisting of a series of bytes(4 bytes in most cases). These bytes are calculated based on specific algorithms and calibration data provided by the vehicle manufacturer. When a vehicle control module is calibrated, the CVN is recalculated and stored in the module. This stored CVN is then used during diagnostics to determine if the control module is properly calibrated.
It is important to note that the CVN can be read with any diagnostic scanner. This means that technicians, regardless of the brand of their diagnostic tool, can verify the CVN to ensure that the control module is correctly calibrated. This enables brand-independent diagnostics and ensures that vehicles comply with legal regulations.
Regarding reflashing Bosch MED17/EDC17 ECUs, it is important to highlight that we possess the knowledge of how to save a stock CVN. Unlike our competitors, we do not blindly rely on aftermarket tools, but rather understand the algorithm and know how to obtain the CVN after the reflashing process. This ensures that the CVN remains valid after the ECU reflash and does not cause any errors or warnings.
The CVN serves as a crucial aspect of compliance with emissions and performance standards set by regulatory authorities. By ensuring that the CVN remains intact and accurate, we guarantee that our clients’ vehicles meet the necessary requirements during inspections, avoiding potential penalties or issues related to non-compliance.
