GM GDS2 VS GM MDI VS GM Global

What is GM GDS2:
The GM Global Diagnostic System 2 (GDS2), a PC-based software application, is designed to diagnose and repair on-board automotive electronic systems. The software application is used with a personal computer and a GM MDI  multiple diagnostic interface (or J2534-2 equivalent)

What is GM MDI Scanner:
The Multiple Diagnostic Interface (MDI), provides full dealer level diagnostics and programming for all Vauxhall /Opel 16 pin vehicles from 1996 to 2017.

What is GM Global:
GM Global incl. GM diagnostic software download, Service Programming System (SPS), Security Access (Security), Snapshot (Snap), Tech2 Scanner View (T2 View), Techline Print (TL Print), Global Diagnostic System (GDS2), PRO Code Display (RPO)…

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GM MDI installation tips: (big thanks to SCOTT)
“Always make sure any downloaded files are unblocked
RIGHT CLICK DOWNLOADED FILES AND CLICK PROPERTY’S , Click unblock button if there, if not click cancel button.
Disable UAC and Disable firewall and reboot .
uninstall mdi manger from control panel, reboot, reinstall mdi manager , start mdi manger make sure correct firmware, close mdi manager or update firmware or do a recovery accordingly, Now leave mdi connected with 12v supply and reinstall tech2win, right click Car Diagnostic Tool tech2win shortcut and click button -> open file location, find emulator.exe ,right click and select option to run as administrator.
close all. now replace quickstart.bin with now one.
now run program from desktop.”

CnAutotool.com disclaimer:
software above tested by the DIY user only. Professionals haven’t tested it yet. You need luck with it coz there might be some unknown risk

All tested to work good with GM diagnostic here

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GM MDI 8.3.103.39 – GM Global 2017.7.1 works good:

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