WIFI GM MDI 2 Multiple Diagnostic Tool Supports GM Original Software

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3 : GM MDI 2 WIFI GM MDI 2 Multiple Diagnostic Tool Supports GM Original Software
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Product Description

1. GM original software is compatible.
2. High-quality Vauxhall/Opel dealer diagnostic interface, used with Global TIS, GDS 2, Tech2Win software.
3. For all GM CHEVROLET BUICK CADILLAC GMC HUMMER PONTIAC SAAB Vauxhall/Opel 16 pin vehicles from 1996 to 2022.

WIFI GM MDI 2 Multiple Diagnostic Tool


1. High speed and low-speed GMLAN
2. Automatic vehicle recognition
3. DTC reading and removal
4. Complete list of live data streaming for all main ECU
5. Recordable/ playback of live data
6. New software flash for existing ECU to fix drivability issues
7. Programming and installation of new ECU (PCM, ABS, Instrument cluster, airbag, fuel pumps, etc.,)
8. Programming new keys
9. Setting/ removing speed limiters
10. More dealer specific functions
11. GM original software is compatible
12. GM Tech2 Supported Protocols: UART, Class 2, KWP2000,GMLAN (CAN)
13. Supports online programming function with GM SPS Subscription
13. J2534 pass-thru offering ECU re-flash and diagnostics for other vehicle manufacturers, when subscribed to their specified software
PS:  1. If you don't have software, you can choose this GM MDI GDS2 Tech2win Software Sata HDD
       2. For FD CAN protocol, the original GM MDI2 Scanner is recommended.

GM MDI 2 Funtions:

1) Automatic vehicle recognition
2) DTC reading and removal
3) Complete list of live data streaming for all main ECU
4) Recordable / playback of live data
5) New software flash for existing ECU to fix drivability issues
6) Programming and installation of new ECU (PCM, ABS, Instrument cluster, air bag, fuel   pumps etc.,)
7) Programming new keys
8) Setting / removing speed limiters
9) J2534 pass thru offering ECU re-flash and diagnostics for other vehicle manufacturers, when subscribed to their specified software
10) More dealer specific functions

The J2534 Configuration Application

The Multiple Diagnostic Interface (MDI) is a J2534 device that connects between your computer and the vehicle's J1962 DLC connector for pass-thru
programming of the vehicle's ECU's. The J2534 Configuration Application is installed onto your PC at the same time as the MDI Manager software allowing you to control how your TIS 2 Web application will connect to an MDI. In addition, this application provides API Monitoring controls to aid in investigating problems encountered while using any J2534 devices (including the MDI).
To launch the J2534 Configuration Application from SPS, press the "configuration" button on the Diagnostic settings screen.

Engine Compartment

Check Engine Compartment for components which may be loose; kinked or pinched vacuum hoses or electrical connections, and for any other missing or disconnected components.
Check to assure that hoses and electrical wires are properly routed to provide sufficient clearance with adjacent moving or hot parts.
Observe the movement or freedom of movement of linkage, valves and other components.
Check for unusual noises within the engine compartment.
Visually inspect for seepage and leaks at hoses and pipe connections, seals, gaskets and plugs.
Tighten clamps and connectors as necessary.
Check power steering gear, lines and hoses for leaks and clearance with adjacent panels, moving or hot parts. Tighten clamps and connectors as necessary.
Test engine coolant protection.
Check all fluid levels; engine oil, transmission oil, power steering oil, battery, brake, and cooling system.
Add inspection items as needed.
Check throttle linkage for freedom at wide open and closed throttle.
Check tension on all belts.
Check operation of all interior and exterior lights.
Road Test.
Road test on a route with road conditions permitting the proper evaluation of squeaks and rattles.
During this test, check the following items for proper operation and function.
Under Vehicle:

Visually inspect vehicle undercarriage for looseness, missing components and line routing and clipping, and fluid leaks. – Tighten clamps, couplings and connectors as necessary.
Data transfer and Electronic Control Unit (ECU) reprogramming.
Shop network communications (LAN and WLAN).
Future expandability, including diagnostic applications.

GM MDI 2 and GDS Background: 
MDI 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 vehicles
Required for diagnostics on new SGM Global A Electrical Architecture Vehicles
Used with TIS2Web, GM Global Diagnostics System (GDS), SPS and MDI Manager Software
Allows for GDS diagnostic
GM Multiple Diagnostic Interface (MDI) 
All current and most legacy vehicle protocols: UART, KW2000, CLASS2, GM LAN, etc.
Needed for Global A architechture vehicles
Supports Service Programming System (SPS)
Passthrough progrmming on past model and Global A vehicles
Supports PC-Based diagnostics with rollout of the Global Diagnositc System (GDS) application
Includes Flight Recorder Mode

What protocols does the GM 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:
- Class 2
- KWP2000
Beginning with the 2008 model year vehicles, Pass-Thru will be the only programming method available. (Remote will continue to be available for previous vehicle

Package List:

1pc x MDI device
1pc x DLC Cable SAE J1962
1pc x 10-ft. USB A to USB B Cable

Original PCMTUNER Magic Car Tool ECU Programmer
2022 ECUHelp ECU BENCH TOOL ECU Programmer

Shipping Method and Delivery Time:

EU, UK , US and Russia Warehouse Shipping: 3-5 working days. Fast Delivery & Tax Free.

China Warehouse Shipping:
DHL Shipping: 3-5 working days. Usually we declare a lower value on DHL invoice to help with customs clearance. Please remember to leave message if you have any special requirement.
Yanwen Express: 7-10 working days. No Tax for European Countries.
Standard Post: 7-15 working days. To South America and Africa countries it may take 20-25 working days. Customers can tick Express Shipping Service to ship by DHL.

For any question, please contact us at:


How to configure WiFi for GM MDI 2

Tech Service

Firstly offer the procedure on how to set GM MDI 2 wireless connection, then solution to GM MDI 2 software error "Not connected to MDI".

GM MDI 2 Multiple sotftware

GM MDI 2 wireless connection error


This is the GM MDI 2 hardware I have:



Part 1: How to set GM MDI 2 wireless connection:

Watch Youtube first:



What to do if MDI failed to connect on Wireless interface?

Check the wireless card is properly seated in the  WiFi GM MDI.

Confirm LEDs on the wireless card are lighted when the MDI is powered.

Verify the MDI and PC are within range of the Access Point or Router.

Verify that the PC is connected to the Access Point or Router.

Verify signal strength of the wireless network from the PC.

Check Firewall Settings on your PC

USB connection takes precedence, unplug USB cable.

Wired Ethernet connection takes precedence, unplug Ethernet cable.

Connect to MDI using USB and run MDI Manager to verify the Wireless Settings are

configured correctly.

o Wireless interface is enabled.

o AP settings configured for proper security (authentication, encryption).

o Signal Quality (fair, good, excellent) indicates connected to AP.

o The MDI, PC and AP are on the same subnet

o If using static IP, verify the IP Address and Subnet mask are correct (supplied by network



Part 2: GM MDI "Not connected to MDI" solution

All what you need do is to refresh the GM MDI firmware.

Details at: http://blog.obdexpress.co.uk/2015/12/08/gm-mdi-meet-not-connected-to-mdi-error-and-solution/


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