Application of OBD system in new car roll-off, registration and annual inspection

When a new car rolls off the assembly line, the automobile manufacturer needs to conduct a communication check on the OBD system of each car to confirm that the OBD system communication is working properly before it can leave the factory. When registering, it is necessary to check whether the vehicle's OBD interface meets the specified requirements, whether the OBD communication is normal, and whether there are any fault codes. When the car is undergoing annual inspection, it is necessary to connect the OBD diagnostic instrument for OBD inspection.