V2EX obd-ii

OBD-II

Definition / 释义

OBD-IIOn-Board Diagnostics II(第二代车载诊断系统) 的缩写:一种汽车标准化的自我诊断与数据接口系统,可通过车辆的诊断接口读取故障码(DTC)、传感器数据和排放相关信息,常用于检修与年检排放检测等场景。(也常指“OBD-II 接口/协议/扫描仪”。)

Pronunciation / 发音

/o bi di tu/

Examples / 例句

My car’s OBD-II scanner showed a misfire code.
我的车用 OBD-II 扫描仪读到了一个“缺火”的故障码。

By logging OBD-II data like fuel trims and oxygen sensor readings, the mechanic confirmed the issue was related to emissions control rather than the ignition system.
通过记录 OBD-II 数据(如燃油修正值和氧传感器读数),技师确认问题与排放控制有关,而不是点火系统。

Etymology / 词源

OBD 来自 on-board diagnostics(车载诊断)II 表示第二代标准。OBD-II 在 1990 年代逐步成为主流(尤其与排放法规和标准化接口相关),使不同品牌车辆能用相对统一的方式输出故障码与实时数据。

Related Words / 相关词

Notable Works / 作品例证

  • SAE J1979(E/E Diagnostic Test Modes):OBD-II 诊断服务/模式的重要行业标准文献
  • SAE J1962(Diagnostic Connector):规定常见的 OBD-II 16 针诊断接口
  • Bosch Automotive Handbook(博世《汽车技术手册》):常见章节会介绍 OBD-II、故障码与诊断流程
  • Understanding OBD-II(汽车诊断类工具书/教程标题常用):面向学习者讲解 OBD-II 原理与实务
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