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故障现象一辆2009年产雷克萨斯RX270车,因追尾事故来我厂维修,钣金修复并更换背门电动机总成等部件后试车,发现背门无法电动关闭。故障诊断试车发现,按下背门上的背门闭合开关,背门电动机开始工作,当背门快要关闭时,背门下降速度明显变缓,接着背门电动机停止运转,且背门电动机总成(背门电动机总成内集成有背门ECU、背门电动机、电磁离合器、霍尔集成电路及蜂鸣器等)内的蜂鸣器发出鸣响,背
Fault phenomenon An 2009 Lexus RX270 car, rear-end accident to my factory maintenance, sheet metal repair and replacement of the back door motor assembly and other components after the test and found the back door can not be powered off. Fault diagnosis test found that press the back door on the back door closed switch, the back door motor began to work, when the back door is about to close, the back door dropped significantly slower, then the back door motor to stop running, and the back door motor assembly (Back door motor assembly integrated back door ECU, back door motor, electromagnetic clutch, Hall IC and buzzer, etc.) buzzer sounding, the back