题目:2015款北汽E150后雾灯不亮诊断维修方案设计目录1.问诊试车.........................................................................................................................11.1车辆信息...............................................................................................................11.2故障现象...............................................................................................................11.3故障确认...............................................................................................................12.故障原因分析.................................................................................................................22.1后雾灯控制原理...................................................................................................22.2原因分析...............................................................................................................33.诊断流程方案设计及实施.............................................................................................33.1后尾灯诊断流程方案...........................................................................................33.2诊断方案实施.......................................................................................................43.3修复验证...............................................................................................................64.总结.................................................................................................................................74.1维修小结...............................................................................................................74.2新设备...................................................................................................................8参考文献...............................................................................................................................82015款北汽E150后雾灯不亮诊断维修方案设计1.问诊试车1.1车辆信息2015款北汽E150，行驶行驶38452公里。图1-1所示。图1-11.2故障现象客户来店反映后雾灯不亮。1.3故障确认接车后，维修技师打开点火开关，将钥匙调到“ON”挡；接通雾灯开关，后雾灯不亮