| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | "Unable to connect to ECU" | Wrong COM port or baud rate | In Device Manager, force COM1-COM4. Set baud to 38400. | | Software crashes on graph view | Missing Visual C++ Redistributables | Install vcredist_x86.exe (2010 or 2013 version). | | Garbled live data (e.g., 255°C coolant) | ELM327 clone firmware issue | Lower baud rate to 9600. Upgrade to genuine ELM327 v1.4. | | "Runtime Error 13" on launch | Corrupted registry entry | Uninstall, delete %AppData%\EasyOBDII folder, reinstall. | | No Bluetooth adapters found | Windows 10/11 permissions | Pair adapter in Windows settings before opening EasyOBDII. |

Check if your vehicle is ready for emissions testing. Vehicle Info: Access VIN and calibration IDs automatically. 💻 System Requirements

Once "Connected," you can read stored or pending fault codes, view live sensor data (RPM, coolant temperature, etc.), and clear "Check Engine" lights. Hardware Compatibility This software is primarily designed for Scantool.net interfaces: EasyObdII Software (Full Version)

EasyOBDII is a Windows-based software application that acts as the interface between your computer and your car’s onboard diagnostics port. Using a USB or Bluetooth OBD2 adapter, the software translates raw ECU (Engine Control Unit) data into readable metrics.

Optimized for USB and Bluetooth interfaces such as OBDLink LX and MX . Compatibility: Supports Windows XP SP2 through Windows 11. Usage Guide