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故障现象一辆2011款上海大众朗逸轿车,搭载CDE1.6 L发动机和手动变速器,行驶里程约为1.6万km。该车因发动机无法起动而需要紧急援助。故障诊断维修人员赶到现场后试车,在接通点火开关并试图起动发动机时,起动机没有反应,此外接通前照灯开关,前照灯不亮;按下喇叭开关,喇叭也不响。由此判断,该车的故障是蓄电池亏电导致的。用万用表测量蓄电池电压,蓄电池确实严重亏电;用备用蓄电池与故障车辆的蓄电池并
Failure phenomenon A 2011 Shanghai Volkswagen LaVida sedan, equipped with CDE1.6L engine and manual transmission, mileage of about 16000 km. The car needs emergency assistance because the engine can not start. Fault diagnosis and maintenance personnel rushed to the scene after the test run, turn on the ignition switch and try to start the engine, the starter did not respond, in addition to turn the headlamp switch, the headlamp does not shine; press the horn switch, the speaker does not ring. Judging from this, the car’s failure is caused by battery power loss. With a multimeter to measure the battery voltage, the battery is indeed a serious loss of power; with spare battery and faulty vehicle battery