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故障现象一辆2009款蒙迪欧致胜2.3AT轿车,行驶里程约为8万km。据驾驶人反映,该车刮水器有时无法关闭,在车辆熄火后刮水器仍在一直工作。故障诊断试车验证故障,发现刮水器确实无法关闭。在刮水器运转时,高速挡和低速挡可以正常切换,但在断开点火开关后,刮水器仍在运转。拆下蓄电池负极电缆让刮水器停止运转,等待约10 min后装复试车,故障现象消失了。经询问驾驶人后得知,该故障为偶发故障,但已出现多次,只要遇到下雨天就有可能出现刮水器无法关闭的故障,且每次必须断开蓄电池负极,刮水器才能停止运转。根据故障现象
Symptom A 2009 Mondeo winning 2.3AT sedan, mileage is about 80,000 km. According to the driver, the car wiper sometimes can not be turned off, and the wiper is still working after the vehicle is turned off. Fault diagnosis test to verify the failure and found that the wiper really can not be closed. While the wipers are operating, the high-speed and low-speed gears can be switched normally, but the wipers are still running after the ignition switch is turned off. Remove the battery negative cable to stop the wiper operation, wait for about 10 min after the reload test, the fault disappeared. Upon inquiry, the driver learned that the fault is an accidental fault, but has appeared many times. As long as it encounters rainy day, it may happen that the wiper can not be shut down. Each time the negative pole of the battery must be disconnected, the wiper can Stop working According to the symptoms