Even though GM Tech2 Diagnostic Tool can work for such car models as GM,SAAB, OPEL, SUZUKI, ISUZU, HOLDEN, when using this tool, problems of all kinds may occur. For an instance, someone has Holden card and wants to use on the Holden car of 2003, but it fails, because in addition to the card, the software also counts. To make the diagnostic tool work for the 2003 Holden car, we not only need the Holden card, but need the newest version software.
We can not believe all the functions listed on the GM Tech2 Diagnostic Tool, even it is provided with such functions. We should pay attention that whether the ECU of our cars has the capacity to do conduct the function of the tool, there is another example to give us evidence. The DRL of my friend’s car presents “ALWAYS ON” all the time, and he wants to turn this into “ALWAYS OFF” by this tool, however, he fails to do this, just because there is no such capacity of the ECU. Therefore, I suggest that before we buy this tool, we should make sure the capacity of the ECU is matched with what we want the GM Tech2 Diagnostic Tool do.
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