本规范涵盖了构成道路车辆应用中电气连接系统的电气端子、连接器和部件（低压（0至20 VDC）或同轴）的开发、生产和现场分析的所有阶段的性能测试。还提供了夹套双绞线连接器的不完整（机械）规范。这些程序仅适用于用于串联、收割台和设备连接器系统的端子。它们不适用于边缘板连接器系统、扭锁连接器系统、>20 VAC或DC，或孔眼端子。除非符合本规范的所有适用要求已得到验证和记录，否则不得将任何电气连接器、端子或相关组件视为符合USCAR规范。 所有要求的验证和文件必须由零件供应商完成。如果测试由另一来源进行，并不免除主要供应商对所有测试结果的文件（DVP&R）以及验证所有测试样品是否符合所有适用验收标准的责任。见4.3。注意:如果根据本规范测试的产品受到或可能受到本文件所述条件以外的条件的影响，则它们必须通过模拟实际情况的特殊测试，才能被视为可用于实际车辆应用。授权人是对其零件进行哪些测试以及这些测试的目的的最终授权人。 他或她也是最终授权人，负责解决与本规范测试相关的任何问题，并授权对本规范中包含的设备或程序进行任何变更（含支持数据）。任何此类偏差必须记录并包含在最终测试报告中。附录C和D中的图表给出了针对选定目的的推荐试验指南。

This specification covers performance testing at all phases of development, production, and field analysis of electrical terminals, connectors, and components that constitute the electrical connection systems in road vehicle applications that are: low voltage (0 to 20 VDC) or Coaxial. Incomplete (mechanical) specifications for jacketed twisted pair connectors are also provided. These procedures are only applicable to terminals used for In-Line, Header, and Device Connector systems. They are not applicable to Edge Board connector systems, twist-lock connector systems, >20 VAC or DC, or to eyelet terminals.No electrical connector, terminal, or related component may be represented as having met USCAR specifications unless conformance to all applicable requirements of this specification have been verified and documented. All required verification and documentation must be done by the supplier of the part or parts. If testing is performed by another source, it does not relieve the primary supplier of responsibility for documentation (DVP&R) of all test results and for verification that all samples tested met all applicable Acceptance Criteria. See 4.3.NOTICE: If the products tested to this specification are or may be subjected to conditions beyond those described in this document, they must pass special tests simulating the actual conditions to be encountered before they can be considered acceptable for actual vehicle application. The Authorized Person is the final authority as to what tests are to be performed on his or her parts and for what purpose these tests are required. He or she is also the final authority for resolving any questions related to testing to this specification and to authorizing any variance (with supporting data) to the equipment or procedures contained in this specification. Any such deviation must be documented and included in the final test report. Guidance as to the recommended tests for selected purposes is given in the charts in Appendices C and D.