Connect the ACTIA interface to your PC via USB. Ensure the device is powered on; for some models, it may need to be plugged into the vehicle's OBD port to receive power during setup.
Modern versions of Diagbox (v7.83 and above, or v9.xx versions running via virtual machines) work on 64-bit systems. However, modern Windows operating systems strictly enforce Driver Signature Enforcement . Because many clone drivers are unsigned, Windows will block them by default. Step-by-Step Installation Guide
Ultimate Guide to Actia PSA Interface Drivers: Installation, Troubleshooting, and Setup
. These drivers enable a Windows computer to communicate with the vehicle's electronic control units (ECUs) via a USB connection to the Actia hardware. 1. Driver Types and Versions
If you have a Diagbox installation package, the drivers are usually located in a folder named Drivers or ACTIA_Drivers . actia psa interface driver
Finding and installing the correct is the most common hurdle for technicians setting up Peugeot and Citroën diagnostic systems like Diagbox, Lexia 3, or PP2000. Whether you are using an original ACTIA Evolution XS unit or a high-quality revision C clone, the driver acts as the bridge between your Windows OS and the vehicle’s ECU.
The ACTIA PSA Interface Driver has a wide range of applications in the automotive industry, including:
Required for modern DiagBox versions (V7.xx, V8.xx, and V9.xx). Running 64-bit systems requires signed drivers or disabling Driver Signature Enforcement. Step-by-Step Driver Installation Guide
Always plug the USB into the computer first , launch Diagbox, wait for the software to fully load, and then plug the OBD2 connector into the vehicle's diagnostic port. Turn the vehicle ignition to the "ON" position (engine off) to begin communication. Connect the ACTIA interface to your PC via USB
To ensure your computer recognizes the interface perfectly, you must check its status in the Device Manager. Press Windows Key + X and select . Scroll down the list of hardware categories. Look for a dedicated category named Actia USB Devices .
Comprehensive Guide to Actia PSA Interface Drivers: Installation, Troubleshooting, and Best Practices
High-quality aftermarket interfaces featuring the correct NEC optocouplers and AN2131QC chips.
Uninstall the device from Device Manager, delete the driver software checkbox, reboot with signature enforcement disabled, and point manually to the AWRoot folder. These drivers enable a Windows computer to communicate
The modern, unified software suite that combines Lexia, PP2000, and newer platform diagnostics into a single interface. Why the Correct Driver Matters
ACTIA driver provides internal logging (enabled via registry key on Windows):
Voltage drop or grounding issues. When the OBD2 port delivers 12V power to the interface, a faulty optocoupler chip inside cheap clone hardware can short out the USB communication lines.
Expand this category. You should see listed without any yellow exclamation marks or warning triangles. Checking the Hardware Instance ID