While this tool is often bundled with Diagbox installations, standalone versions are typically found on automotive community forums and diagnostic software repositories:
Allows manual upgrading or downgrading of the VCI firmware to match specific Diagbox software requirements. Psa Interface Checker V3 Download
| Tool | Purpose | Download Size | Use Case | | :--- | :--- | :--- | :--- | | | Hardware & driver test | ~20 MB | Pre-diagnosis verification | | DiagBox / PP2000 | Full vehicle diagnosis | ~5 GB | Reading codes, programming | | Firmware Updater | Flash VCI firmware | ~50 MB | Upgrading interface | | Lexia 3 | Legacy software (pre-2010) | ~500 MB | Older Citroën/Peugeot | While this tool is often bundled with Diagbox
PSA Interface Checker V3, often termed the Lexia 3 Flash tool, is a utility for managing the firmware of VCI interfaces for Citroen and Peugeot vehicles, frequently used to upgrade Revision B devices to Revision C for Diagbox compatibility. The tool enables users to check device versions and flash firmware files offline to avoid damaging clone interfaces. For further information and download sources, visit the discussion on Drive2 . For further information and download sources, visit the