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OBD is the abbreviation of On-Board Diagnostics, which translates to "On-board Automatic diagnostic System" in Chinese. This system can detect various sensors, actuators and fault codes inside the car, and transmit the detected information to the car control unit or external devices through a specific communication protocol.
The main functions of the OBD system include:
Fault code reading: When the vehicle fails, the OBD system can store the fault code in the control unit. By connecting the OBD diagnostic tool, you can read the fault code, determine the fault type and fault location, and then perform maintenance.
Sensor data reading: The OBD system can read various sensor data of the vehicle, such as engine temperature, coolant temperature, air flow, throttle position, oxygen sensor, etc. This data can help the driver or maintenance personnel understand the operating status and performance of the vehicle.
Actuator testing: The OBD system can test various actuators of the vehicle, such as fuel injectors, ignition coils, idle motors, exhaust gas recirculation valves, etc. By testing the actions and responses of these actuators, you can determine whether they are working properly.
History and diagnosis: The OBD system can record the vehicle's operating data and fault code, which is convenient for the driver or maintenance personnel to query the history and understand the vehicle's fault history and maintenance records.
OBD system is a very important part of modern vehicles, which can help drivers and maintenance personnel better understand the condition and performance of the vehicle, timely detection and troubleshooting, and ensure the safety and normal operation of the vehicle.
OBD is the abbreviation of On-Board Diagnostics, which translates to "On-board Automatic diagnostic System" in Chinese. This system can detect various sensors, actuators and fault codes inside the car, and transmit the detected information to the car control unit or external devices through a specific communication protocol.
The main functions of the OBD system include:
Fault code reading: When the vehicle fails, the OBD system can store the fault code in the control unit. By connecting the OBD diagnostic tool, you can read the fault code, determine the fault type and fault location, and then perform maintenance.
Sensor data reading: The OBD system can read various sensor data of the vehicle, such as engine temperature, coolant temperature, air flow, throttle position, oxygen sensor, etc. This data can help the driver or maintenance personnel understand the operating status and performance of the vehicle.
Actuator testing: The OBD system can test various actuators of the vehicle, such as fuel injectors, ignition coils, idle motors, exhaust gas recirculation valves, etc. By testing the actions and responses of these actuators, you can determine whether they are working properly.
History and diagnosis: The OBD system can record the vehicle's operating data and fault code, which is convenient for the driver or maintenance personnel to query the history and understand the vehicle's fault history and maintenance records.
OBD system is a very important part of modern vehicles, which can help drivers and maintenance personnel better understand the condition and performance of the vehicle, timely detection and troubleshooting, and ensure the safety and normal operation of the vehicle.
