What should I do if the reverse image of mercedes benz C L K is unclear?

1, do you sometimes engage in reverse gear, but it doesn't appear on the display, just black? If your camera is powered by the reversing light, it should be caused by insufficient voltage when reversing.

2. This problem is inherent in my reversing image. After careful testing, it is found that the voltage of the reversing lamp is only 10.48 after the vehicle is put into reverse gear. I looked at the performance parameters of the camera, and its working voltage is about 1 1V to work normally, so I judged that the output voltage was not enough after the car was put into reverse gear.

3. The solution is: connect a relay to the camera, get power from the power supply of 12V, and control the relay by reversing the lamp.