The GM MDI is the Global Diagnostic tool for future vehicles starting with Global A vehicles. It’s a compact communication module that manages the transfer of data between a vehicle’s onboard ECU network with an auxiliary CAN bus.
The GM MDI was introduced in the fall of 2007 for Pass-Thru programming and offers faster programming speed using J2534. Depending on vehicle architecture, the MDI can communicate 20% to 70% faster than the Tech 2. It can be used to perform Pass-Thru programming on all vehicles built since 1996 and into the future. Please note that there are other J2534 VCIs (vehicle communication interface) that will perform MDI functions utilizing GDS2 software.
Servicing the next generation Global A vehicles requires the diagnostic software, GDS2 (Global Diagnostic System 2) running on a local PC device while the MDI is connected to the vehicle.
The MDI connects to the vehicle via the J1962 connector using a DLC cable. Connection between the MDI and the PC can be accomplished via standalone (USB) or through (CAT5, or Wireless) networks.
Reprogramming for 1996 – up vehicles
Tech2Win may be used for earlier backward compatibility for 96 up vehicles.
Tech2Win does not perform all functions of the Tech 2 hand held scan tool.
Available as three different subscriptions.
Complete GM Service Support Package Includes: GM SI, Tis2Web – All Access, GDS 2, and Tech2Win
MDI Software for GM MDI
GM Vehicle Communication Interface Package Includes: Global Diagnostic System 2 and Tech2Win
GM Global Diagnostic System 2 Includes: Diagnostic software for GM Global A vehicles (available on a short mid and annual subscription)
The MDI must have an active subscription to acdelcotds.com to function
|DTC Code Retrieval|
|Retrieve OE DTC with code Definition||X|
|Link DTC to service information|
|Customizable PID display||X|
|Retrieve and display Mode 6 Data|
|Programmable Module Installation procedures||X|
|Module Reprogramming (Reflash)||X|
|Programmable Parameters ( ability to change in service settings ie, tire size, personality, customer convenience etc.)||X|
|Anti-theft System Functions||X|
|Remote Keyless Entry||X|
|Restraints (supplemental restraints and seat belts)||X|
|ABS Service Bleed||X|
|ABS/ Brake system functions||X|
|Ride Height Calibration ( for vehicles with pneumatic or hydraulic ride height controls)||X|
|Tire pressure monitor functions||X|
|Cruise Control System tests||X|
|Electronic Ride control||X|
|Charging System Tests||X|
|Parking Aid Tests||X|
|Force monitors to run||X|
|Fuel System Test/Relative Injector Flow Test||X|
|Bi-directional control of fuel components||X|
|Bi-directional Ignition System control||X|
|Power Balance Test||X|
|Transmission bi-directional Tests||X|
|Engine Checks and OBD Tests (Drive Cycle, Mode 01, Mode 06 & Mode 09)||X|