What does China V plus OBD mean?
1 Answers
China V refers to the China National Fifth Stage Motor Vehicle Pollutant Emission Standard. The main pollutants emitted by vehicles include hydrocarbons, nitrogen oxides, carbon monoxide, and particulate matter. Through the application of technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, the standard aims to control and reduce vehicle emissions below specified limits. OBD, which stands for 'On-Board Diagnostics,' is a system that continuously monitors the engine's operating conditions to check if the vehicle's emissions exceed the standard limits. If the emissions exceed the limits, the system will immediately issue a warning. When a system fault occurs, the Malfunction Indicator Lamp (MIL) or Check Engine warning light will illuminate, and the Powertrain Control Module (PCM) will store the fault information in memory. The fault codes can be read from the PCM using specific procedures.