How to judge that the reversing camera is broken?

As long as there is no picture on the central display screen of the car or there is a shadow on the picture when reversing, the reversing camera is generally broken. There are many reasons why the car reversing image is not displayed, as follows: 1, car battery power supply: the car reversing image is displayed by car battery power supply. Of course, when the car battery is dead, the car reversing image will not be displayed. 2. Bad connection: If the connection between the camera and the car display screen falls off, the reversing image will not be displayed. Just reinstall the connecting cable. 3. Poor contact of the switch: As in the second step, the switch needs to be reinstalled.