There have many situations cant use GM MDI , when you have some troubles to use the tool , you should reboot the MDI software and do the Self Test first . Please check the bellowing 4 issues for GM MDI :
1. “MDI DOES NOT PASS SELF TEST”
If you meet this problem, it indicates that there is an internal problem in the MDI, you need to connect the MDI to a PC by using the USB and do the software recovery procedure or you can contact your local customer support center for help.
2. “MDI ERROR LED LIGHTS AFTER POWER ON”
This condition indicates that during power on, there has detected a problem...Read More