Many individuals that get their GM Tech 2, very first thing is usually to do a self-test. It is just a method to exam if your GM Tech 2 is sweet or lousy. Should the Tech 2 test isn’t excellent, we could make contact with the customer companies immediately and change a new just one or get some specialized assistance.

GM trouble codes may be retrieved with or without a code scanner on pre-1993 GM vehicles, due to the type of OBD port connector of Vetronix GM Tech 2 .This port has been changed in the later model vehicles, and Tech 2 Scanner is necessary to retrieve the codes. Once the codes have been retrieved, the accompanying site will have a list of the codes and their meaning. To erase the codes and turn the check engine light out.

This is the CAN DI test for GM Tech 2. When your Tech 2 Scanner has problem, you can use the following ways to do the test, then you can know which part of your GM tech 2 has problem.

https://www.autonumen.com/goods-6947-GM-MDI-2-Diagnostic-Tool-Multiple-Diagnostic-Interface.html
Q: Can GM Tech 2 Scanner support key coding and electronic control unit programming for all OPEL and Isuzu?

A: GM tech2 can’t support key programming; as for electronic control unit programming, you need to additionally buy a GM TECH2 and a TIS2000, but TIS2000 only support GM and Opel, not support Isuzu.

Q: Can GM Tech2 send commands to the various modules and is it able to do diagnostics on a climate control programmer? To what year is the scanner effective? I own a 1997 Cadillac DeVille and a 2001 Chevrolet Venture.

A: Yes, you can use GM TECH2 to diagnose climate control programmer, when it has communication GM Tech 2 can send commands to the modules.

Q: GM TECH 2 contains Saturn software?

A: yes, Saturn software is included in the GM software English and support for on-board diagnostics on all GM systems 1992 thru 2013.

This is from autonumen.com website technical support

Are you looking for a scanning tool to replace the old one to run quickly and easy to use? GM MDI 2 will be a good choice for you. Here share the details of MDI2 including features, functions and supported protocols etc.

OVERVIEW

MDI is an interface between the vehicle DLC and a PC (by wired USB, wired Ethernet, wireless Ethernet) and TIS2 web.

GM MDI 2 Features:

Works as the high-quality Vauxhall / Opel dealer diagnostic interface
Can be used with Global TIS, GDS 2, Tech2Win software on a new laptop
Provides full dealer level diagnostics and programming
Supports all Vauxhall /Opel 16 pin vehicles from 1996 to 2017
Performs quickly and used easily

GM MDI 2 Functions:

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 functions

What protocols does the GM MDI 2 Scanner 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 vehicle

Where to buy GM MDI 2?
If you would like to buy Multiple Diagnostic Interface 2, click here to get more info: https://www.autonumen.com/goods-6947-GM-MDI-2-Diagnostic-Tool-Multiple-Diagnostic-Interface.html

Returning the MDI 2 for item SP163-C is not what I want. I purchased an MDI 2 because it’s supposed to be better than an MDI in multiple ways.
The MDI 2 is supposed to be able to power off the USB connection when not plugged into a vehicle.
It does work when plugged into a vehicle, but the GM MDI2 is supposed to be able to power up from a usb connection alone.
This blog says the original and clone share the same functions and only differ in price and operating system.

The WiFi in the MDI 2 (SP163-E) that I received seems to be built in instead of being a USB dongle, and so far I haven’t been able to set up the point to point WiFi communication the MDI 2 is also supposed to be capable of.

Here are some pictures showing the firmware update being done, and where there aren’t any USB A ports under the covers labeled as USB A

The unit looks good, however it seems to simply be an MDI made to look like and MDI 2.
When I plug it into a computer it will not power of the usb connection like and MDI 2 is supposed to, it does not have the USB A ports under the covers instead the is no opening under 1 and a power connector under the other like on the original MDI unit. I don’t see an SD card expansion slot like the MDI 2 is supposed to have either.

Once I was able to plug the unit in and get it powered up the GM MDI Manager software doesn’t recognize it as a MDI 2 but as a MDI. I could not connect to it until I updated the software, because it was 2 years old. Which not really a big deal because I was expecting the software to require and update to be the most current.

So my advice is: dont waste money on MDI2 knock-off. Just take a MDI instead if china clone