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故障现象一辆丰田普瑞维亚车因左后车门无法自动关闭进店检修。故障诊断及排除接车后首先试车,以确认故障现象。经试车发现,左后车门可以通过遥控器及顶灯处的开关进行解锁,但是无法闭锁;用手拉动左后车门把手时,听到蜂鸣器的响声,但是左后车门还是无法闭锁,其他车门均正常工作。利用故障检测仪读取故障代码,无故障代码存储。由于该车为进口车,没有该车型的相关资料。利用故障检测仪读取故障车左后车门的数据流(图1),并与右后门的数据流进行对比(图2),发现故障车左后车门触摸传感器的信号是Open,右后车门触摸传感器的信号是OFF。
Symptom A Toyota Prius car due to the left rear door can not be automatically closed into the shop overhaul. Fault diagnosis and troubleshooting After the first test car to confirm the fault phenomenon. After the test car found that the left rear door through the remote control and dome light switch to unlock, but can not be locked; hand pull the left rear door handle, you hear the buzzer sound, but the left rear door still can not be locked, the other doors All work normally. Use the fault detector to read the fault code, fault-free code storage. As the car is imported car, there is no relevant information on the model. Using the fault detector to read the data flow of the left rear door of the faulty vehicle (FIG. 1) and compare it with the data flow of the right back door (FIG. 2), it is found that the signal of the left rear door touch sensor of the faulty vehicle is Open and the right rear door touch The sensor signal is OFF.