This document provides information about the MKIII All Comms diagnostic tool for Range Rover L322 vehicles from 2003-2005. The tool connects via USB and OBDII port to read and clear fault codes from various vehicle systems like ABS and air suspension. It can also customize settings for air suspension, vehicle entry, and parking sensors. The tool supports ongoing additions to allow communication with more vehicle systems over time. It is meant to help diagnose problems by identifying fault codes but may not resolve physical issues requiring repair.