Right-click the file and select Run as Administrator .

The legacy software dedicated to Citroën vehicles.

Manually locate the Drivers folder inside your Diagbox installation directory or setup ISO. Force update the driver using the "Have Disk" method outlined above. 2. The Interface Drops Connection Intermittently Cause: USB power management settings or a faulty USB cable.

If the automatic installation fails or you see a yellow exclamation mark in Device Manager, perform a manual update:

Once the driver establishes a stable connection, it unlocks "Dealer-Level" features that generic OBDII scanners cannot perform: Telecoding (Coding/Adaptations):