The document provides instructions for using the Hero Integrated Diagnostic Instrument (HIDI). It contains details on the device contents, interfaces, functionality, and detailed instructions for communication with a PC and vehicle. Key functions of the HIDI include downloading authorization codes from a portal, selecting vehicle information, performing diagnostics to read diagnostic trouble codes, pairing replacement keys and engine control modules with vehicles. The document provides step-by-step guidance on operating the HIDI and performing its various functions.