How to Use PSA DiagBox V7.83 (8.19) 17l for Peugeot and Citroen Vehicles

PSA DiagBox is a diagnostic software that allows you to perform a complete analysis and programming of Peugeot and Citroen vehicles from 1995 to present. It works with the original Chinese and adapters XS Evolution Lexia3, which you can buy online for a reasonable price.
In this article, we will show you how to install and use PSA DiagBox V7.83 (8.19) 17l, which is the latest version available as of April 2023. This version has improved features and compatibility with the latest models and systems of Peugeot and Citroen vehicles.
How to Install PSA DiagBox V7.83 (8.19) 17l
To install PSA DiagBox V7.83 (8.19) 17l, you will need a Windows PC with at least 2 GB of RAM, 15 GB of free hard drive space, and a DVD-ROM drive. You will also need a USB cable to connect your PC to the Lexia3 interface.
Follow these steps to install PSA DiagBox V7.83 (8.19) 17l:
- Download the PSA DiagBox V7.83 (8.19) 17l file from the link provided below. It is a compressed file that contains the installation files and instructions.
- Extract the file using a program like WinRAR or 7-Zip. You will get a folder named “PSA_DiagBox_V7.83_2016_Full”.
- Open the folder and run the file named “Diagbox installer.exe”. Follow the on-screen instructions to install the software on your PC.
- After the installation is complete, you will see a shortcut on your desktop named “Diagbox”. Do not run it yet.
- Open the folder named “DiagBox Update V7.XX to V7.57” and run the file named “update.exe”. This will update your software to version 7.57.
- Repeat the same process for the other update folders until you reach version 7.83 (8.19). The order of the updates is: V7.57 to V7.58, V7.58 to V7.62, V7.62 to V7.66 (8.02), V7.66 to V7.74 (8.10), V7.74 to V7.76 (8.12), V7.76 to V7.82 (8.18), and V7.82 to V7.83 (8.19).
- After you have updated your software to version 7.83 (8.19), you can run the Diagbox shortcut on your desktop.
How to Use PSA DiagBox V7.83 (8.19) 17l

To use PSA DiagBox V7.83 (8.19) 17l, you will need to connect your PC to your vehicle using the Lexia3 interface and the USB cable.
Follow these steps to use PSA DiagBox V7.83 (8.19) 17l:
- Turn on your PC and run the Diagbox software.
- Turn on your vehicle’s ignition but do not start the engine.
- Connect the Lexia3 interface to your vehicle’s OBD II port, which is located near the steering wheel or under the dashboard.
- Connect the USB cable from the Lexia3 interface to your PC.
- The software will automatically detect your vehicle’s model and VIN number.
- Select the function you want to perform from the menu, such as diagnosis, programming, telecoding, or configuration.
- Follow the instructions on the screen to complete the function.
Note: Some functions may require an internet connection or a password from PSA’s online service.