Description: dephi OBD II technology roadmap, the so-called OBD-II is a series of regulations aimed at detecting the entire powertrain system to reduce the failure or deterioration in car emissions, emissions control system is based on the OBD-II. OBD-II also provides the standardization of diagnosis, repair and other related services for Standardization. When a vehicle emissions (HC, CO, NOx) were detected as a result of the components/systems and the deterioration in excess of 1.5 times the relevant standards, the malfunction indicator light (MIL) must be lit to inform the driver and at the same time recorded fault code .
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