Navigate to your Diagbox installation folder (usually C:\AWRoot\bin\fi\ ). Look for the file named .
For anyone working on Peugeot, Citroën, DS, or Opel/Vauxhall vehicles, is the holy grail of factory-level diagnostics. It is the official software suite (the predecessor and complement to the newer EuroSedan) designed to interface with the full architecture of PSA Group cars. However, a recurring nightmare plagues both professional workshops and DIY enthusiasts: The DiagBox Data Access Problem.
This is not a "broken car" issue 90% of the time. It is a between your PC, the cable, and the software.
DiagBox relies on legacy file-handling protocols that modern Windows security settings often block.
Modern PSA vehicles use CAN High on Pin 6 and CAN Low on Pin 14. However, many clone interfaces short Pin 7 (K-Line) and Pin 8 (Ignition). This causes a back-feed.
To help narrow down the exact cause of your communication error, please let me know: What is the vehicle you are diagnosing?