Understanding Legacy PSA Diagnostics: PP2000, Lexia, and the MHH Auto Archive
| Vehicle Range | Recommended Software | Version | |---|---|---| | 1996-2002 Peugeot (106, 206, 306, 406) | PP2000 Standalone | v21 | | 2000-2005 Citroën (Xantia, Saxo, C5 Mk1) | Lexia | v22 | | 2004-2009 Citroën (C4, C5 Mk2, C8) | Lexia | v24 | | 2004-2010 Peugeot (307, 407, 607, 807) | PP2000 | v23 | | 2010+ PSA Vehicles | DiagBox | v7.83+ |
According to threads on MHH Auto, the best "final" legacy versions are: PP2000 - LEXIA OLD versions - MHH AUTO - Page 1
Use the provided activation keys or scary01 as the default activation code when requested.
Needs to be "full chip" or "rev C" (serial number 921815C) for the best reliability. Software Files: Download from the MHH Auto threads. Step 2: Installation Process Understanding Legacy PSA Diagnostics: PP2000, Lexia, and the
Be careful with fake “old versions” repacked with malware. Always check MD5 hashes. I have a clean set:
Links on "Page 1" are often hidden until a user registers, introduces themselves, or interacts with the post. Step 2: Installation Process Be careful with fake
As PSA updated its diagnostic framework, it gradually bundled the individual components of (for Peugeot) and Lexia 3 (for Citroën) into the modern unified launcher known as Diagbox .
Introduced around 2000 alongside the multiplexed electrical architectures of early modern Peugeots, is a dealer-level diagnostic and programming interface. It belongs to the Peugeot Planet System (PPS), a global network that allowed dealer technicians to access vehicle data, perform key programming, and run actuator tests.
I’m using an older Rev. C full-chip interface (the one with the blue case). It works flawlessly with versions up to 4.x.x, but anything above 5.x.x gives me constant communication errors or the dreaded "No dialogue with ECU" on 2004-2008 models (especially BSI and injection on a 307 and C4).
Furthermore, these tools allow DIY mechanics to perform complex repairs without paying dealership diagnostic fees (often €150+ per hour). As long as you are using the software for personal, non-commercial diagnostics on your own vehicle, the community generally views this as "abandonware" fair use.