Daughter took the car for Maryland emissions inspection. Failed for “Connector Tamper”. Took car to nearby indy shop on the list of approved emission repair shops. They said it’s a common problem with Civic, and fixed it for free(!).
That sounds like some kind of don’t-mess-with-this feature on the OBD-II test connector. Can somebody please tell me what it means and how it gets fixed? I’m not having much luck with Google.