前进碰撞/主动安全系统可能在2018-2019泰浩，郊区，育空和易于级模型上不起作用。DTCS B390A 45（短程对象传感器 - 变型未编程），B390A 58（短程对象传感器 - 性能）和/或DTC B390A 67（可以设置DTC B390A 67（短程对象传感器 - 不正确的装配）。（图19）
Fig. 19
条件的原因可能是以下组合：
- B233雷达传感器模块 - 短距离自身执行内部故障检测，模块不断运行该程序以检测故障。
- 如果B233雷达传感器模块 - 短程检测到内部故障，它将不起作用，主动安全系统将不起作用。
The two front radar sensor modules – short range (Fig. 20) are used to measure the distance to objects that are within 98 ft. (30 m) of the front of the vehicle. The radar sensor modules – short range improve cut-in detection, which are objects that enter the vehicle path from the side and are not necessarily detected by the front-view camera and radar sensor module – long range.
图20.
At the rear of the vehicle, the active safety control module uses the two radar sensor modules – short range (Fig. 21) and the parking assist control module as part of the backing warning system and the rear automatic braking system.
图21.
阻止雷达
如果设置了DTC B390A 58，请检查任何可能干扰雷达信号的任何东西。DTC B390A 58设置当控制模块未在响应特定事件时看到对参数的预期变化时。
Verify that the area in front of the radar is clean of mud, ice, snow, etc. Also verify that the fascia panels in front of the radar are not damaged or obstructed by any add-on accessories or emblems.
如果车辆筋膜是清洁,畅通无阻,而且damage free, and DTC B390A 58 is still set as current, the radar sensor has detected a blockage condition and will not been able to clear it until certain conditions are met.
以大于6英里/小时（9km / h）的速度驱动车辆，并允许雷达传感器在雷达传感器视野的方向上暴露于其他车辆/交通。通常，正常交通条件下的短驾驶员将允许雷达传感器清除堵塞条件。
安装不正确
DTC B390A 67可以设置B233雷达传感器模块 - 在车辆的不正确侧重新安装短距离。DTC B390A 67设置当控制模块检测到该组件已被错误安装或有极性误差时。一旦安装在车辆上，B233雷达传感器模块 - 短距离不能从侧面交换。
编程和设置
如果设置了DTC B390A 45，则可能是由于雷达未正确地学习车辆位置，而不是指示实际的软件编程问题。DTC B390A 45将设置为表示可能需要编程子系统选项内容。要更正此问题，请使用服务编程系统（SPS）执行编程和设置步骤。
- 感谢Hassan Abdallah
