1Vehicle Fitment: ECU decoder is replacement for SIEMENS Fenix 3 and 5, replacement for Megane 1400cc 8v, replacement for Laguna 2000cc 8v, etc. 2High Efficiency: ECU programmer adopts advanced decoding technology, which can decode and unlock ECU quickly and stably, improving decoding efficiency and success rate. 3Professional Design: The ECU decoding tool can supply power to the sweeper, and connect the GND wire to any suitable GND on the ECU, no laptop needed. 4High Reliability: ECU decoder adopts excellent circuit and chip design, which guarantees the stability and reliability of the device and can run stably for a long time. 5Easy Operation: Diagnostic tool is simple and easy to understand, no complicated settings and operations are required to complete ECU unlocking and decoding.