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故障现象一辆2011年产德国进口宝马GT 535i车,搭载N55发动机,累计行驶里程约为3.6万km。车主反映,组合仪表提示右后雾灯失效,接通后雾灯开关,右后雾灯不工作。故障诊断接车后试车,接通后雾灯开关,左后雾灯亮起,右后雾灯不亮。用故障检测仪(ISTA)检测,脚部空间模块(FRM)中存储有故障信息“FRM 800F75右侧后雾灯损坏”(图1);执行故障引导检测计划,显示FRM的供
Symptom A 2011 German production of BMW GT 535i car, equipped with N55 engine, the cumulative mileage of about 36000 km. Owners reflect the combination of instrument tips right rear fog lamp failure, connected to the fog light switch, the right rear fog lamp does not work. Troubleshooting After the car to take the test, turn on the fog lights switch, the left rear fog lights, right rear fog lights do not shine. Fault detected by the fault detector (ISTA), Fault message stored in the footwell module (FRM) “FRM 800F75 Damaged rear fog lamp on the right” (Figure 1); Fault guided test plan is executed showing FRM supply