I used it on my friend's 98 suburban with gas engine, then I used up my 2nd license to get rid of his "cat failure" code. Don't need a license to read the ecm, just to flash it. At least that is my understanding.
I believe it is Just GM vehicles that use OSB II Port.Define "supported vehicle". Is it just duramax's or? Can I use it on my wifes montana, or my sunfire?
na theres actually a list of vehicles it will work on....it can be found herepretty sure what he meant by " any supported vehicle" was any obd2 vehicle if your just reading codes. prolly domestic only though