09 Regal display plug definition

OBD interface. Regal is a domestic car launched by Shanghai GM, and it is one of the important components of Shanghai GM Buick's dual-brand strategy. Its body weight is 1.570kg, and it is driven by front wheels. The display plug is defined as OBD and called OBD interface. OBD is an on-board automatic diagnosis system. It is mainly used to monitor the running state of the engine and the working state of the exhaust gas treatment system in real time.