标准摘要
[中文适用范围]： ISO 15031 的这一部分规定了车辆提供的一组标准诊断服务（OBD 服务）。 ISO 15031 的这一部分指定了一套由外部测试设备提供的补充设施，其中包括扫描工具设施。 这些设施提供对任何车辆上所有公共 OBD（车载诊断）服务的完整、高效和安全的访问，符合 ISO 15031 的这一部分。 ISO 15031 的这一部分指定了一种在车辆之间建立通信的方法。 配备 OBD 的车辆和外部测试设备，以及 — 由外部测试设备提供的一组诊断服务，以便执行 ISO 15031-5 中定义的服务。 ISO 15031 的这一部分并不排除在外部测试设备中包含附加功能或功能。 然而，外部测试设备设计者有责任确保此类能力或功能不会对可能连接到外部测试设备的配备 OBD 的车辆或外部测试设备本身产生不利影响。 [外文原描述]： ISO 15031-4:2014 specifies a set of standard diagnostic services to be provided by vehicles (OBD services). ISO 15031-4:2014 specifies a complementary set of facilities, to be provided by external test equipment, which will include scan tool facilities. These facilities provide complete, efficient, and safe access to all of the public OBD (on-board diagnosis) services on any vehicle, which is compliant with ISO 15031-4:2014. ISO 15031-4:2014 specifies - a means of establishing communications between an OBD-equipped vehicle and external test equipment, and - a set of diagnostic services to be provided by the external test equipment in order to exercise the services defined in ISO 15031‑5. ISO 15031-4:2014 does not preclude the inclusion of additional capabilities or functions in external test equipment. However, it is the responsibility of the external test equipment designer to ensure that no such capability or function can adversely affect either an OBD-equipped vehicle, which may be connected to the external test equipment or the external test equipment itself.
英文名称Road vehicles — Communication between vehicle and external equipment for emissions-related diagnostics — Part 4: External test equipment