What are the reasons for the car rear camera not displaying?
4 Answers
The reasons for the reverse camera not displaying are as follows: Damaged or obstructed camera: If the camera is damaged, the image cannot be uploaded to the computer, so it won't display. In this case, you should go to a repair shop or 4S store for maintenance, and if necessary, replace the camera. If there is just an obstruction blocking the camera, simply remove it. Damaged display screen: When the display screen remains black and won't start or shows distorted images, it is usually damaged. This situation requires inspection and repair at a repair shop or 4S store. Poor wire connection: If you frequently drive on rough roads, the bumpy environment may cause the internal wires of the car to loosen or detach. When the wire connection is poor, the image from the camera cannot be transmitted to the main unit, and the reverse camera won't display. This situation requires dismantling the center control panel for inspection.
When my rearview camera suddenly stops displaying, my first thought is that it might be due to a malfunction in the camera itself, such as water entering the lens or internal circuit failure, especially during heavy rain seasons—water seepage can cause a short circuit, resulting in a black screen. It could also be a power supply issue, like a blown fuse or insufficient battery power. I check if the reverse lights are still on because sometimes they share a fuse; if they’re not lit, it’s likely a fuse problem. Loose wiring or corroded connectors are also common causes, as frequent opening and closing of the trunk can cause vibrations that disconnect them. System software bugs might also be the culprit, and restarting the infotainment system sometimes resolves the issue. Additionally, a faulty display screen can be mistaken for a camera problem. This severely impacts reversing safety, so I recommend pulling over immediately to inspect or seek repairs. To prolong the camera’s lifespan and reduce risks, avoid exposing it to direct sunlight or water in daily use.
As someone who enjoys DIY fixes for minor car issues, when encountering a non-displaying rear camera, I first perform simple troubleshooting: check if the camera connector is loose or clogged with dirt, gently unplug and reconnect it a few times; inspect the relevant fuse in the fuse box to ensure it's intact, replacing it with a spare if blown; if there's sound but no image when reversing, it might be a broken video wire requiring inspection of the wiring; camera aging or a blurry lens can also cause a black screen—I've restored functionality several times just by cleaning off dust; more complex issues could involve the vehicle control system, such as failed software updates, necessitating a reboot of the main system; I recommend keeping a simple multimeter handy to check voltage and ensure stable power supply; make it a habit to routinely check the camera's cleanliness after parking to prevent minor issues from escalating.
In my experience, the non-display of the rear camera is usually caused by a few common issues: the camera itself is damaged, such as the light burning out due to aging in high temperatures; power supply issues, like a short circuit causing the fuse to trip; poor connections, such as corroded plugs or disconnection due to bumpy roads; or a mismatch in the parking sensor system, which can falsely report a camera error. The first step is to check the fuse and power supply to ensure normal power delivery. Then, inspect the camera for physical damage and try pressing the lens to see if there's any response. If simple troubleshooting doesn't work, it's best not to tamper with it. I recommend taking it directly to a professional repair shop to check the circuit or replace parts—it saves money, time, and ensures safety, avoiding new problems caused by DIY mistakes. It's also important to park in shaded areas to protect the equipment.
