I am trying to help out a friend of mine who has an 07 Pontiac G6 with some shifting issues. When reading the PCM it will gather info, enough for me to see that the PCM that is in it is the wrong VIN for the car. Right year make model engine etc, but wrong VIN. When I try to read the calibration however I get the Controller unlocker timed out error fairly quickly. I have tried turning things off, on, uplugging and replugging, different ports etc, however the issue persists only on this car. I tried two other vehicles just as a test and everything connects just fine.
It will let me datalog it, but not read the BIN. Is this due to the fact that someone put a used PCM with a different VIN in here, or is there something else I should be looking at? I was wanting to look at the BIN and see if it is even set up for the correct transmission. Suggestions welcome. Thanks
Roy