文件名称：OBD介绍以及相关的CAN通信协议指令
文件大小：550KB
文件格式：PDF
更新时间：2022-02-11 09:01:55
OBD mode PID protocol
OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool. SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections. Manufacturers also define additional PIDs specific to their vehicles. Though not mandated, many motorcycles also support OBD-II PIDs.