ISO 19689:2016规定了用于摩托车和轻便摩托车之间通信的诊断连接器以及用于诊断的外部设备的最低要求。其目的是在整个摩托车行业推广通用诊断连接器的使用。诊断连接由两个配合连接器组成，车辆连接器和外部测试设备连接器。适用于所有类型的摩托车和轻便摩托车，指定的连接器采用主动锁定功能密封，仅用于短期诊断连接。 ISO 19689:2016规定了以下功能要求: a)车辆连接器，分为以下四个主要区域: -连接器位置， -连接器设计， -连接器触点分配，以及 -连接器和相关电路的电气要求，以及 b)外部测试设备连接器，分为以下三个主要区域: -连接器设计， -连接器触点分配，以及 -连接器和相关电路的电气要求。 车辆连接器的尺寸要求作为最小规格给出，以允许设计自由度。

ISO 19689:2016 specifies a minimum set of requirements for a diagnostic connector used in communication between motorcycles and mopeds, and external equipment for diagnostics. Its aim is to promote the use of a common diagnostic connector throughout the motorcycle industry. The diagnostic connection consists of two mating connectors, the vehicle connector and the external test equipment connector. Applicable to all types of motorcycles and mopeds, the connector specified is sealed with positive locking feature and is intended for short-term diagnostic connection only. ISO 19689:2016 specifies functional requirements for a) the vehicle connector, separated into the four principal areas of

• - connector location,
• - connector design,
• - connector contact allocation, and
• - electrical requirements for connector and related electrical circuits, and

b) the external test equipment connector, separated into the three principal areas of

• - connector design,
• - connector contact allocation, and
• - electrical requirements for connector and related electrical circuits.

The dimensional requirements of the vehicle connector are given as a minimum specification, to allow design freedom.