The document categorizes diagnostics into several "Modes," each serving a unique purpose:
: International standards for controller area networks (CAN) and unified diagnostic services (UDS). eys157.part2.rar
: Request current powertrain diagnostic data (live data stream). eys157.part2.rar
: Specific hex codes (e.g., Mode $01 through Mode $0A) used to trigger different diagnostic functions. eys157.part2.rar