How does an OBD2 Connector work?

How does an OBD2 Connector work?
Article by Nitin Saini
On board diagnostics (OBD) has come a long way since its beginning in the 1980s. OBD gives easy access to the vehicle owner to information on the state of health of the vehicle. It also makes the job of the mechanic easy to locate the problems, if any. In the earlier versions, only the malfunctioning of a particular section could be reported by an appropriate indicator light. But the latest edition, OBD2 connector has the ability

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