What is the reason for the Leopaard CS9 reversing camera not displaying?

[PeterMarie]

It is usually caused by the rearview camera, wiring, or the host system crashing. The reversing camera, also known as the "parking assist system," is a blessing for many car novices. If you have used a reversing camera, you will notice that when it is activated, three lines of different colors appear. These lines are the trajectory lines of the reversing camera, typically colored red, yellow, and green. Red arc line: Represents the trajectory of the rear wheels when the steering wheel is turned to the maximum during reversing. Yellow line: Can be regarded as a deceleration line; the position at the bottom of this line indicates a distance of 60 cm from the rear of the car, suggesting that you can continue reversing at a reduced speed. Green line: Represents the actual trajectory of the rear wheels in the current state during reversing.