You can find the installer on automotive forums like MHH AUTO or specialized diagnostic blogs such as UOBDII .
If you are downloading it as a standalone file: psa interface checker v4 download
The original PSA Interface Checker V4 was released by (PSA’s official tooling partner) for internal dealer use. However, because it is proprietary, you will not find it on the official Peugeot or Citroën public websites. For diagnostic professionals, the safest options are: You can find the installer on automotive forums
The interface is Spartan and strictly functional. Users simply connect the VCI via USB, launch the tool, and "Activate" the interface to read its status. It is not a diagnostic tool itself but a prerequisite for ensuring your diagnostic hardware is configured correctly. Compatibility: because it is proprietary
Pour entrer, merci de confirmer que vous êtes un professionnel de santé