Sometime ago a question was raise about a way to test readiness using techstream. At that time and up to the present no one was able to provide the answer. While facing the same question a few weeks ago after my car failed the mandated vehicle inspection test my research resulted to an answer of yes. I'm sharing snapshot pictures of techstream's typical results. Of course you can use a generic OBD2 scanner but these scanners in general cannot produce the details of the tests produced by techstream.