It allows you to diagnose vehicles produced after 2016, which often require the specific "C" revision handshake to access all ECUs. How to Use the Interface Checker
If you’re working with vehicles (Peugeot, Citroën, DS, or Opel/Vauxhall), you’ve likely encountered the complexity of diagnostic hardware. When it comes to the Lexia 3 / PP2000 or Diagbox systems, the "440" designation is the gold standard. psa interface checker 440 verified
The "440" verified status indicates that your interface is a Full Chip Revision C . This is the highest grade of clone or aftermarket hardware, designed to mimic the original dealer tool perfectly. Why "Verified" is the Keyword It allows you to diagnose vehicles produced after