Navigate to the "Diagnostics" tab. Click "Read Codes." The software displays all stored and pending codes. In v2.2.0, the severity indicator (Red/Yellow/Green) next to each code helps you prioritize.

Open EasyOBDII v2.2.0. Click the green "Connect" button. The software will auto-detect the protocol (J1850, CAN, ISO9141, etc.). Version 2.2.0 does this in under 3 seconds, a notable speed increase.

Open the software settings menu. Select the correct assigned to your USB adapter by Windows Device Manager. Set the baud rate (usually 9600 or 38400 for classic ELM327 devices). Click "Connect." The software status bar will shift from "Disconnected" to "Connected to Interface," then "Connected to ECU." Step-by-Step Diagnostics: Fixing a Check Engine Light

for documenting diagnostic results and an improved logger that exports to System & Hardware Compatibility Operating Systems: Compatible with Windows versions from Windows XP SP2 up to Windows 11 (excluding Mobile). Touch Support:

What (Windows 10, 11, etc.) you are running?