This document provides instructions for reading PIN codes and programming keys for Renault Megane and Megane Scenic models from 1999 to 2003 using an OBD II device. The procedure involves selecting the Renault UCBIC module and model from a list, reading the 8-digit PIN code, then programming keys one at a time by inserting each key and switching the ignition on and off. The device can also manually enter PIN codes, read live data from the UCBIC module, and change immobilizer setup parameters.