Actia Psa Interface Driver _verified_ -
Hold down the while clicking Restart in the Windows Start Menu.
Right-click the .inf setup file (often APPLI.inf or psa_usb.inf ) and select . Alternatively, run the Driver_Setup.exe file if provided. Step 3: Verify the Installation in Device Manager
By ensuring your Actia PSA interface driver is installed correctly, verified via the Windows Device Manager, and paired with the appropriate hardware firmware version, you can unlock full dealer-level diagnostics, fault code clearing, and ECU telecoding on any Peugeot or Citroën vehicle.
If you run Diagbox natively on your main laptop, Windows Update will occasionally overwrite the working Actia driver with a generic USB driver, breaking vehicle communication. actia psa interface driver
Connect the ACTIA unit to your PC via USB. (Do not connect it to the car yet).
With everything connected, run a from within DiagBox. This comprehensive scan will attempt to communicate with every ECU in the vehicle. The test should succeed. If it fails, revisit the troubleshooting steps below.
You should see a dedicated dropdown menu for Actia USB Devices , revealing the USB Com Board Evolution Driver (UMDF) without any error icons. Hold down the while clicking Restart in the
To manage the interface firmware, professionals use a tool called (InterfaceChecker.exe).
| Interface version | Typical driver | Notes | |------------------|----------------|-------| | | ACTIA D-PDU driver | Works with DiagBox, PP2000, Lexia, and generic J2534 apps | | Clone / Chinese “ACTIA” | Often modified or older driver (e.g., version 2.18 or 2.24) | May require specific driver + firmware combo; standard D-PDU driver might not work |
A common issue is that a clone might be incorrectly detected as "USB Com Board Driver" instead of the proper Actia driver. The community consensus is that for basic diagnostics on older cars (pre-2015), a well-made "Full Chip" clone is often sufficient. For reliability, advanced coding, or newer vehicle networks (CAN FD, DoIP), only a genuine Actia interface can be fully trusted. Step 3: Verify the Installation in Device Manager
When you plug the device into your laptop, the driver maps the hardware as a specific USB device—typically appearing in Device Manager as or "Actia USB Devices" . Without this driver, your diagnostic software will throw communication errors, such as "Connection error" or "Device not detected." Supported Software and Hardware Versions
If you see a yellow triangle next to the driver name, it usually indicates code 52 (Windows cannot verify the digital signature) or code 10 (Device cannot start).
The Actia PSA Interface Driver, while unassuming, is the essential digital key to the professional repair and maintenance of PSA vehicles. By understanding its role, following the correct installation procedures, and mastering the use of the PSA Interface Checker for firmware management, you can transform a standard Windows laptop into a powerful dealer-level diagnostic system.
To prevent Windows Update from automatically installing a generic (and often non-functional) driver, stay offline. 3. Step-by-Step Driver Installation
