What are the reasons for the reverse radar not displaying images?

[McJoel]

If the reverse radar does not display images, it is likely caused by a malfunction of the reverse camera. It is necessary to check whether the wiring, radar probe, and radar hardware are functioning properly. The reasons and solutions for the reverse radar not displaying images are as follows: Wiring issues: Inspect the connection points between the reverse radar wiring and the vehicle's installation to check for loose connections, as poor contact can cause the reverse radar to intermittently function. Radar probe malfunction: Examine the reverse radar probe, which is relatively delicate. Sometimes, it may malfunction due to car washing or high-pressure water jet cleaning (also check whether the internal wiring is secure). Radar hardware failure: Determine whether the reverse radar itself has inherent defects or damage, or if there are loose wire connections. It is recommended to visit a professional repair shop for inspection.

[LaKeira]

When I was reversing, I noticed the radar had no image. A common reason could be that the camera lens is dirty or obstructed, such as being covered by mud or bird droppings. Cleaning it with a soft cloth should solve the problem. Another possibility is a loose connection, especially in older cars where the interfaces are prone to corrosion or breakage. Check the rear cable connection port and gently unplug and replug to ensure it's secure. Sometimes the display might be the issue, such as a black screen or brightness being too low. Try adjusting the settings or restarting the system. Additionally, a blown fuse is also common. Check the fuse box for the fuse corresponding to the reverse module and replace it if necessary. To prevent such faults, park away from debris areas and clean the camera during regular car washes. If you can't fix it yourself, take it to a professional repair shop. Spending a little money for safety is better than risking an accident while reversing.