Actia Psa Interface Driver !!top!! Official

If you have a Diagbox installation package, the drivers are usually located in a folder named Drivers or ACTIA_Drivers .

Most modern setups require the . 2. Preparing Your System

A yellow exclamation mark in Device Manager indicates a driver problem. Solutions include:

Look for an "Unknown Device" or "ACTIA USB Devices." It may appear as "USB Com Board Driver" . Update Driver: Right-click the device and select Update Driver Software . Choose "Browse my computer for driver software." Point the search to your driver folder.

Post‑2016 PSA vehicles include a Secure Gateway (SGW) . The ACTIA driver must support SGM (Security Gateway Module) authentication. actia psa interface driver

Problem 1: Device Appears as "Unknown Device" or "Incompatible"

Navigate to > Advanced options > Startup Settings > Restart .

I can provide the exact file paths or configuration steps for your layout. Share public link

The ACTIA interface (often referred to as the ) utilizes a specific USB-to-serial communication protocol. Because these diagnostic tools often rely on legacy software, the driver must be perfectly matched to both your hardware "revision" and your version of Windows. If you have a Diagbox installation package, the

Hold the Shift key while clicking in the Windows Start Menu.

Original units for Citroën typically feature numbers like 921815C or 922173A , while clones often share a generic number such as 921815B / 40W07 / 0005451 .

If you are installing drivers manually on Windows 10 or 11, you must temporarily disable Driver Signature Enforcement. Windows may otherwise block the unverified third-party drivers used by aftermarket diagnostic tools. Step 2: Running the Driver Installer

Security and legal notes

| | Physical Layer | Use Case | | ----------------------- | ------------------ | -------------------------------------------- | | ISO 15765-4 (11‑bit CAN) | CAN High‑Speed | Diagnostics, UDS (ISO 14229) | | ISO 15765-4 (29‑bit CAN) | CAN High‑Speed | Heavy‑duty, multiple ECUs | | CAN FD | CAN with flexible data‑rate | 2018+ vehicles (NAC, BSI2, head units) | | ISO 9141-2 (K‑Line) | Single wire | Older PSA (pre‑2008) engine, ABS, airbag | | DoIP (ISO 13400) | Ethernet over OBD | Gateway diagnostic, DoIP activations (2022+) |

A major revision in this driver family is the one associated with DiagBox version 9.x. This newer driver is necessary for the ACTIA Core XS VCI and for full compatibility with the Firefox 102 ESR engine that powers the modern DiagBox interface.

In Device Manager, you should see:

Even with the correct Windows driver installed, the interface might fail to communicate if its internal firmware version is incompatible with your version of DiagBox. DiagBox automatically attempts to flash connected interfaces, which can "brick" or block clone devices if they don't support firmware updates. Preparing Your System A yellow exclamation mark in