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Thanks for getting back to me TOM, but I found the issue!!! It was the generic consult to usb adapter I was using. I had wires connected to the speed signal pin of the DLC and it caused no speed signal to Datascan and blocked it from the ecu. Never would have guessed. I opened it up and snipped the ...

I have been using the datascan software and it never reads vehicle speed at the ecu. This also causes the ecu to never activate the VTC. I looked back through all my logs and it never has. I am using one of the generic nissan 14pin to usb adapters. Is it an adapter problem or a software issue ...