Hardware ID matches ACTIA XS reference
The firmware version on your Lexia interface acts like an operating system. Different versions of the DiagBox diagnostic software require specific firmware to communicate. Here is the hierarchy: psa interface checker 440 verified
| Component | Reference | Purpose | |-----------|-----------|---------| | Main unit | 440-T01 | Signal generator & continuity tester | | Test lead set | 440-C01 | 4x multimeter-style leads (black, red, yellow, blue) | | Breakout box adapter | 440-AD-16 | Connects to 16-pin OBDII port for network testing | | ECU-specific harnesses | Various | Plugs directly into ECU connectors (e.g., 440-AD-EMS, 440-AD-BSI) | | Battery clips | 440-PWR | 12V supply for active tests | Hardware ID matches ACTIA XS reference The firmware
Avoid marketplaces like eBay or AliExpress without verified seller history. Instead, look for: Instead, look for: Many budget-friendly clones omit up
Many budget-friendly clones omit up to 40% of the internal components to reduce production costs. While they might report themselves as "Revision C" inside a basic program, they lack physical switching relays. .
PSA Interface Checker (often called PSAXSND or Interface Checker ) is a small, specialized Windows utility. It communicates directly with the microcontroller inside your Lexia 3 hardware multiplexer via a USB connection.
VCI that has been confirmed through the Interface Checker as having the correct hardware components and Revision C firmware. Compatibility: