What's the matter with the display screen not showing the reversing image?
3 Answers
Here is the relevant introduction about the display screen not showing the reversing image: 1. Host program issue: Sometimes it requires reprogramming or upgrading the program to solve the problem. However, more often than not, just like restarting a computer to fix minor issues, it works fine after a reboot. 2. Navigation data problem: For example, vehicles with connected driving have too many marked points stored in the map; or too many operations on the host in a short time, causing the host to freeze; or issues with real-time traffic information data processing. 3. USB usage problem: For instance, some low-quality USB drives may cause compatibility and data transmission issues, leading to poor host performance. Or there are too many non-multimedia files in the USB drive/hard disk. 4. Bluetooth problem: Such as poor fiber contact in the vehicle's Bluetooth module; or the phone is connected to the vehicle via Bluetooth, and there are many special symbols in the phone's contact names, or some protective software on the phone causes a black screen.
I've encountered this issue several times, mainly due to display screen or camera malfunctions. For example, poor wiring connections can cause connectors to loosen after prolonged vehicle vibration, preventing signal transmission to the screen. It's also common for the camera lens to be covered by dirt or debris - try cleaning it. A blown fuse could be another factor; if the reverse system's fuse in the fuse box burns out, the image disappears. System software freezing is another possibility - when the car computer crashes, try restarting or wait a few minutes. A faulty reverse gear switch can also cause this, as the image only activates when reversing but the switch has poor contact. If the problem persists, visit a repair shop immediately to avoid compromising driving safety.
My experience is to start with the simplest checks when the reversing camera doesn't display. First, check if the screen is turned on and test other functions like navigation to rule out screen malfunction. Then, make sure the car is shifted into reverse gear; if there's no response, the reverse gear switch might be faulty. Inspect the camera to ensure it's clean and unobstructed—I often test by wiping the lens with a cloth. The location of the fuse box varies by car model, so locate and replace the corresponding fuse. Loose wiring harness connections are the most common issue; I've fixed it by simply re-plugging the camera connector. If all these steps fail, the control unit might be damaged or there could be a deeper issue, in which case it's best to consult a professional technician for a quick and efficient solution.
