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故障现象一辆东风日产逍客2.0自动挡车,累计行驶里程约为1万km,左前门上的主控开关控制右前门车窗玻璃升降不起作用,右前门上的车窗开关只能控制该侧车窗玻璃上升,而无法控制其下降。故障诊断首先验证故障现象。试车发现,使用左前门上的主控开关对右前门车窗进行控制,右前门车窗玻璃无任何反应,但可以控制其他车窗玻璃的升降;用右前门上的车窗开关只能控制该侧车窗玻璃上升,但无法控制其下降;两后门上的车窗开关均可以控制各自车窗玻璃的正常升降。根据故障现象分析认为,只有右前门车窗玻璃升降控制有问题,这说明提供电源的BCM工作正常,主控开关的供
Fault phenomenon A Nissan QASHQAI 2.0 automatic car, the cumulative mileage of about 10000 km, the left front door main control switch to control the right front door window glass does not work, the right front door window switch can only control the side The windowpane rises without being able to control its descent. Troubleshooting First verify the symptoms. The test found that the use of the left front door on the main control switch on the right front door window control, the right front door window glass without any reaction, but can control the other windows of the lift; with the right front door window switch can only control the The side window rises, but can not control its descent; the window switches on both back doors control the normal movement of the respective window glass. According to the analysis of the fault phenomenon that only the right front door window glass lift control problems, indicating that the BCM power supply is working properly, the main switch for the