What Causes the Reverse Gear Not to Switch to the Rearview Camera?
2 Answers
The reasons why the reverse gear does not switch to the rearview camera: 1. The reverse detection line on the navigation system and the trigger line on the video cable of the rearview camera are not properly connected (one end of the trigger line connects to the navigation reverse detection line, and the other end connects to the positive terminal of the reverse light); 2. The camera might be faulty. The reason the rearview image does not switch could be due to a malfunctioning camera. You can check if the camera has power or try replacing it with a new one to resolve the issue; 3. It might be due to aging of the video power cable. You can try replacing it with a new power cable. If the black screen issue is resolved, it indicates that the video power cable was the problem.
I've been driving for over ten years and have encountered the issue of the reversing camera not switching over several times. The most common cause is a faulty reverse gear sensor, which detects whether the car is in reverse and sends the signal to the camera system. Another possibility is that the camera itself is dirty or has short-circuited due to water ingress, especially during the rainy season. Loose wiring connections are also a frequent culprit. Last time, I opened the glove compartment to check the wiring connectors and found some oxidation—cleaning them fixed the problem. Additionally, the car's infotainment system freezing can also cause this issue; try restarting the head unit. I recommend starting with simple checks, like replacing a fuse or seeing if the reverse lights come on. If they do, it means the sensor is receiving a signal, so don’t rush to spend money on repairs—save time and effort.
