故障现象一辆雷克萨斯ES300h车,搭载2AR-FXE发动机和E-CVT变速器,累计行驶里程约为6.5万km。该车因事故在我店维修后,组合仪表提示“检查驻车声纳系统”(图1),且所有超声波传感器均无法工作。故障诊断用故障检测仪检测,驻车声纳系统中存储有当前故障代码“C1AE3右前中间传感器”(图2),且无法删除,推断可能的故障原因有:右前中间超声波传感器及其线路故障;驻车声纳ECU故障。 Symptoms A Lexus ES300h car, equipped with 2AR-FXE engine and E-CVT transmission, the cumulative mileage of about 65,000 km. After the car was repaired in our shop due to the accident, the instrument cluster instructed “Check Parking Sonar System ” (Figure 1) and all ultrasonic sensors failed to work. Fault diagnosis detected by the fault detector, parking sonar system is stored in the current fault code “C1AE3 right front intermediate sensor ” (Figure 2), and can not be deleted, infer possible causes of the malfunction are: the right front ultrasonic sensor and its line Fault; parking sonar ECU fault.