The Diagbox software suite combines the functionalities of legacy diagnostic utilities—such as for older Peugeots and Lexia 3 for vintage Citroëns—into a unified, modern interface. Version 9.87 introduces crucial refinements over earlier iterations like V9.68 or V9.85:
Allow Windows to automatically recognize the new hardware or manually point the device manager to the Drivers folder included inside the extracted ZIP.
It is often recommended to disable Windows Defender or antivirus during installation to prevent file blocks.
Do cancel or interrupt the command-line terminal windows that pop open automatically during installation. These scripts are actively registering background environment paths and standalone license tables.
Diagbox 9.87 provides access to all major vehicle systems, including:
Reads/clears Diagnostic Trouble Codes (DTCs), displays real-time data, and allows for actuator testing.
The "zip" extension signifies a compressed archive, suggesting the need for a specific deployment procedure. Unlike standard consumer software, Diagbox requires a rigorous installation protocol:
Diagbox 9.87 provides a wide array of dealer-level functions that go far beyond what a generic OBD2 scanner can offer.
Follow the on-screen prompts. If asked for a serial number or password, refer to a password.txt file included in your zip archive.
To run PSA Diagbox 9.87, you'll need: