What are the common problems when the reversing radar controller is damaged?
2 Answers
There are several common problems when the reversing radar controller is damaged: 1. No alarm from the reversing radar system: There is no response from the reversing radar system after shifting into reverse gear or pressing the radar switch. Fault diagnosis: Caused by the working power supply or ground circuit of the reversing radar system not functioning. 2. Radar system indicates a fault: The radar system indicates a fault when using the parking function. Fault diagnosis: Probe failure or abnormal probe controller circuit. 3. False alarms from the reversing radar system: The radar alarms even when there are no obstacles while using the parking function. Fault diagnosis: Probe failure or dirty probe surface. Common faults include probe damage, water droplets, or mud on the probe surface.
My own car's reverse radar controller has broken several times. Common issues include circuit short circuits burning out internal components, which usually happens in humid weather or after water seeps in during car washing; strong vibrations can also loosen connectors, causing unstable signal transmission; and voltage instability, such as problems with the generator causing overload, can directly fry the controller. Once it's broken, the reverse radar may give false alarms or fail to alert, making it easy to hit a wall or injure a child while reversing. That time, I tried checking the fuses myself and replaced them, but it didn’t help. Later, I had to send it for repair and replace the controller, which cost me a few hundred bucks. It’s advisable to regularly clean the sensors, keep the controller dry, and seek professional repair immediately if any issues are detected.
