Unlike generic OBD-II scanners—which typically only read standard engine fault codes—DDT2000 offers "deep diagnostics." It can communicate with almost every electronic module in the car, provided the user has the correct database files for that specific model year.

Welcome to the walled garden of French electronics. To break in, you need the skeleton key. You need the .

The DDT2000 "database" refers to the comprehensive collection of XML files—typically stored in the C:\DDT2000data\ecus folder—that define how the software communicates with specific vehicle modules. DDT2000 Database 4.0.9.2 (patch_inside) - AliExpress

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Because newer Renault models use updated ECUs, an old database will not recognize them.