P2459 OBD-II: 柴油微粒过滤器再生频率 OBD-II故障代码P2459是什么意思？
OBD-II代码诊断故障代码定义为柴油微粒过滤器再生频率
柴油机排气液（DEF）用于帮助将残留的废气颗粒转化为无害气体。 为了燃烧这些颗粒，排气系统的温度需要升高。 向废气流中注入柴油机排气液（DEF）可使柴油机微粒过滤器（DPF）升温。 然后，该系统能够将有害的氮氧化物转化为氮、二氧化碳和水。如果DPF在规定时间内运行超过3次，代码P2459将被设置。 持续短途行驶可能导致该代码被设置，因为发动机需要在高速公路上长时间巡航以有效运行再生。
有此故障代码的车辆应送至修理厂进行诊断。 查找修理厂
引发P2459代码的常见问题
Ronald Thomas
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