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MDI Manager version: V8.5.33.154Update time: FOR G-M Global V2025.09Fully tested and works perfectlyHigh speed and low-speed GMLANSupported Protocol: UART, Class 2, KWP2000,GMLAN (CAN)For all G-M CHEVROLET BUICK CADILLAC GMC HUMMER PONTIAC SAAB Vauxhall/Opel 16 pin vehicles from1996 to 2020Multi-language: German, Spanish, French, Italian, Dutch, Portuguese, Vietnamese, Russian, Thai, Japanese, Korean, EnglishTech2win: English onlyGM MDI 2 is used by professional technicians as an aid in diagnosing and repairing automotive electrical and electronic systems. The MDI 2 is designed to connect the vehicle to a host PC computer application, which then functions through the MDI 2 for data transfer and Electronic Control Unit (ECU) reprogramming.
GM MDI 2 Multiple Diagnostic Interface with Wifi Card
GM MDI 2 Description:
The Multiple Diagnostic Interface 2 (MDI 2) is used by professional technicians as an aid in diagnosing and repairing automotive electrical and electronic systems. The MDI 2 is designed to connect the vehicle to a host PC computer application, which then functions through the MDI 2 for data transfer and Electronic Control Unit (ECU) reprogramming.
The newest pc-based GM Multiple Diagnostic Interface (MDI 2) offers increased processing power, security, and faster programming speeds on Global A and future
Global B vehicles.
The MDI 2 supports diagnostic applications: GDS 2, Data Bus Diagnostic Tool, and Tech2Win. It also supports Pass-Thru programming applications: TIS2Web–SPS. It replaces the first generation MDI, introduced in 2007, for Pass-Thru programming on current GM models. The MDI 2 is backward compatible, so it can be used to perform Pass-Thru programming on all vehicles built since 1996 by means of the J1962 connector using a DLC cable. Connection between the MDI 2 and the PC can be accomplished via standalone (USB) and the dealership network (CAT5).
GM MDI 2 Features:
● Uses a new, more secure Type B connector and Ground Offset Failure protection. A wired connection is recommended for longer programming events.
● The MDI 2 is powered from the vehicle battery via the DLC Cable. It may also be powered over USB to perform firmware updates only using a PC.
● Uses USB 2.0 for faster firmware downloads instead of a separate AC power supply.
● The DLC cable is twice as long as the previous cable and connects at the top, making it easier to use. The cable only connects to the MDI 2.
Vauxhall / Opel MDI 2 (Tech 3) OEM Level DiagnosticsMDI scan tool is the Multi Diagnostics InterfaceWorks as the high-quality Vauxhall / Opel dealer diagnostic interfaceCan be used with Global TIS, GDS 2, Tech2Win software on a new laptopProvides full dealer level diagnostics and programmingSupports all Vauxhall /Opel 16 pin vehicles from 1996 to 2025Perfoms quickly and used easily to make customers happy and win new business by offering the exact same functions as the main dealers, including; * Automatic vehicle recognition* DTC reading and removal* Complete list of live data streaming for all main ECU* Recordable / playback of live data* New software flash for existing ECU to fix drivability issues* Programming and installation of new ECU (PCM, ABS, Instrument cluster, air bag, fuel pumps etc.,)* Programming new keys* Setting / removing speed limiters* J2534 pass thru offering ECU re-flash and diagnostics for other vehicle manufacturers, when subscribed to their specified software* More dealer specific functionsMDI 2 and GDS BackgroundMDI is an interface between the vehicle DLC and a PC (by wired USB, wired Ethernet, wireless Ethernet ) and TIS2web.Can be Used for SPS programming on existing and future SGM vehiclesRequired for diagnostics on new SGM Global A Electrical Architecture VehiclesUsed with TIS2Web, FOR GM Global Diagnostics System (GDS), SPS and MDI Manager SoftwareAllows for GDS diagnosticFOR GM Multiple Diagnostic Interface (MDI)All current and most legacy vehicle protocols: UART, KW2000, CLASS2, GM LAN, etc.Needed for Global A architechture vehiclesSupports Service Programming System (SPS)Passthrough progrmming on past model and Global A vehiclesSupports PC-Based diagnostics with rollout of the Global Diagnositc System (GDS) applicationIncludes Flight Recorder ModeWhat protocols does the MDI 2 support?For immediate use — At present, vehicles have two buses on the 16 pin connector(high speed and low speed GMLAN). The GM MDI communicates using all of the existing GM protocols, the same as the GM Tech2:- UART- Class 2- KWP2000- GMLAN (CAN)Beginning with the 2008 model year vehicles, Pass-Thru will be the only programming method available. (Remote will continue to be available for previous vehicleWhen you test after 2010 year for gm car, you can use gds2 software:
When you want to test before 2010 year for GM car, you can use the tech2win software to test it,run fast and stable:


MDI 2 Package List:1pc x MDI 2 Main unit1pc x OBD2 Cable1pc x USB Cable1pc x Second Hand Laptop Lenovo X230 laptop with latest software