When I open PCH with the OBDX plugged in it tells me it found the OBDX on com3, serial port is selected, and it says the device is initialized and ready. However, Test doesn't work, access to com3 denied. Then it says it found ATZ but failed to switch to DVI protocol or reset DVI or initiate the OBDX. It's been a couple years since I did this and I can't remember what I'm doing wrong.
Jim
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