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The is a software application designed to calculate the unique 4-digit (or sometimes 5-6 digit) security code used by the immobilizer system in PSA vehicles (Peugeot, Citroën, DS, and some older Opel models). Version 1.3.9 is a specific release that many users find stable and reliable.
Using this software requires a baseline level of automotive electronics knowledge. Data Source:
: Small footprint software that does not require extensive hardware, making it suitable for on-site diagnostics. User Interface