How to deal with historical failures如何处理历史故障

Although the fault is not displayed in the current state, the fault did occur. If this occurs, the associated fault may persist. When there is a historical fault, the following detection steps should be performed:虽然当前状态下故障未显示，但故障确实出现过。若出现这种情况，相关的故障可能一直存在。当存在历史故障时，应执行以下检测步骤：

Determine whether the user has replaced the fuse or disconnected the connector.确定用户是否进行过保险丝的更换或接插件的断开。

If the relevant fuse has been replaced or the connector has been disconnected, the fault code needs to be cleared, and then check whether the fault code has been reset. If the fault code does not reset, complete the diagnosis.如已进行过相关保险丝的更换或接插件的断开操作，则需清除故障代码，然后检查其故障代码是否被重置。若故障代码未重置，完成诊断。

If the fault code is reset, the relevant diagnostic fault code process needs to be performed. Then check the wiring harness and connectors, see "How to Deal with Intermittent Faults" for details.若故障码重置，则需执行相关的诊断故障代码流程。然后检查线束和接插件，详见“如何处理间歇性故障”。