[Scan Tool Request] ---> Mode 22 + Custom PID Address ---> [GM ECU] [Scan Tool Display] <--- Raw Hexadecimal Telemetry <--- [Returns Specific Sensor RAM Data]
The tool unlocks thousands of GM-specific PIDs. Users can monitor critical performance metrics in real-time, including: gm mode 22 scan tool by terry
: It is frequently bundled with ELM327 USB or Bluetooth diagnostic kits as part of a free software suite. [Scan Tool Request] ---> Mode 22 + Custom