这个码是什么意思?
控制器在监测条件下判断催化系统效率不足。P0420 对应第 1 气缸列,P0430 对应第 2 气缸列。应排查排气漏气及失火、混合气相关码,并按车型评估传感器信号及催化器测试。报码本身不能证明必须更换催化器或氧传感器。
来源与解读范围 [1]
故障码描述检测到的异常,不直接指定必须更换的零件。
厂商原文中的含义
原文含义可能随车型和后缀变化。此处按来源展示,不代表通用诊断结论。
P0420rear bank catalyst system efficiency below threshold [bank 1]厂商技术资料
5以下为英文原文
HONDA
原文报码 P0420
"Owner Notification Letter - On some 2016-17 Pilot, 2017 Ridgeline, and 2018 Odysey models, the malfunction indicator light (MIL) may come on if one of the following diagnostic trouble codes (DTCs) are stored: - P0420…
HONDA
原文报码 P0420
"Owner Notification Letter - On some 2017-19 Pilot, 2017-19 Ridgeline, and 2018-19 Odyssey models, the malfunction indicator light (MIL) may come on if one or more of the following diagnostic trouble codes (DTCs) are…
HONDA
原文报码 P0420
"Service Bulletin - The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally, debris from the high pressure pump or the fuel injector machining process can cause internal wear…
HONDA
原文报码 P0420
"Service Bulletin - The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally, debris from the high pressure pump or the fuel injector machining process can cause internal wear…
HONDA
原文报码 P0420
Service bulletin - The MIL is on with DTC P0420 or DTC P0430 (catalyst system efficiency below threshold) with a possible DTC P2243 or DTC P2247 (A/F sensor 1 circuit high voltage). One or both primary A/F Sensor (Air…
核对适用车辆
4车型关联可作为查阅线索;具体发动机、生产范围和软件条件请核对厂商资料。
更换零件之前
记录报码及冻结帧,检查蓄电池状态、相关报码和可见的线束或软管损伤。按照该车诊断流程和测试结果决定维修,避免仅凭故障码换件。
来源与解读范围
以下解释由本站依据所列原厂资料整理。页码从 PDF 文件第一页计数。原文为英文,译文供查阅参考;引用某个版本不代表它就是厂商当前最新指令。
- 2024–2025 MY OBD System Operation Summary for Gasoline Engines ↗
Ford Motor Company · PDF 页码 2, 3 ·
来源核对日期 · 2026-10-27
还能继续驾驶吗?
仅靠故障码无法判断是否适合继续行驶。故障灯闪烁、严重抖动、过热、机油压力报警或制动转向异常都需及时处理。影响车辆控制或发动机安全时,应在安全地点停车并寻求帮助。以车辆手册为准。