: Navigate to the "Repair" menu to perform a "Global Scan." You can then select specific ECUs to read and attempt to clear fault codes.

While newer versions of DiagBox exist (9.x), they are bloated, require online activation, and struggle with older cars. For any PSA vehicle made before 2018, DiagBox 7.57 on VMware remains the top choice for independent mechanics and advanced DIYers.

Need the files? Search for "DiagBox 7.57 VMware pre-installed" or roll your own using the guide above. Remember to own the original interface for legal use.