Customer Problem: My GM MDI 2 interface just stopped working, and it won’t connect anymore. It kept flashing to red on the 3 light, and then stayed beeping loud.
Gm Mdi2 cannot connect to Tech2win solution One
Obd2tool.com engineer solution:
The reason is that the device was not detected. Please reinstall the GM MDI2 Manager.
Here is the related free download link: