HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Toyota Diagnostics\Techstream\Env Region Selection : When prompted during setup, select
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Choose your specific interface (e.g., XHorse - MVCI or VXDIAG) from the dropdown menu. Troubleshooting Common Issues it should handshake with the car.
Open Techstream. Go to Setup -> VIM Select . Choose the appropriate drivers (usually "XHorse Firmware" or similar depending on your cable). Click "Connect to Vehicle." If your COM port is set correctly (usually COM3, COM4, or COM9), it should handshake with the car. toyota techstream download windows 11