What Causes No Signal from the Rearview Camera?

[Tami]

No signal from the rearview camera can be caused by: 1. The data cable connected to the rearview camera is loose or has poor contact; 2. The rearview camera is faulty. It is necessary to check the connecting cable to determine the actual cause of the malfunction. The rearview camera is installed at the rear of the vehicle and uses a far-infrared wide-angle camera device, which can display obstacles behind the vehicle through the in-car display. When the reverse gear is engaged, the system automatically connects to the high-definition rearview camera at the rear of the vehicle, clearly displaying the situation behind the car on the LCD screen, allowing the driver to clearly see the road conditions behind for safe reversing operations.

[DelHarmony]

Last time I encountered a no-signal issue with the reverse camera, which was quite troublesome. Common causes include camera malfunction, damaged wiring due to pulling, blown fuse, loose connector, or head unit problems. The wiring harness at the rear of the car often gets folded and worn during reversing, leading to broken wires and signal loss; a blown fuse usually indicates overcurrent protection; the camera itself might have water damage or impact damage, resulting in blurry images or non-functional lights. It's recommended to first check if the wiring harness connector in the trunk is loose—try pressing it firmly; then locate the fuse box (usually near the driver's seat) to see if the reverse camera fuse is blown. If that doesn't work, clean the lens to rule out dirt interference. Checking these yourself doesn't take much time, but don't push it—if the signal doesn't return, get it repaired. Reversing safety comes first; without the camera, it's easy to scratch or have an accident.

[ArcherLee]

I also experienced signal interruption issues with the reverse camera on my old car. The common causes include wiring harness wear or breakage after frequent trunk opening/closing, aging or failure of the camera hardware, loose connectors leading to signal loss, blown fuses, or loose screen interfaces. Once, I found a cracked section where the trunk wiring harness was coiled and temporarily fixed it with tape. Another time, a fuse blew, and replacing it with a new one solved the problem. It's advisable to regularly inspect the wiring harness and connection points, especially near the trunk. Using a multimeter to check circuit continuity is a simple and cost-effective method. Don't wait for major issues to arise before fixing them—operating without a reverse camera increases blind spot risks. Developing a habit of regular maintenance can prevent unnecessary troubles.

[SanNaomi]

No signal from the reversing camera is really annoying. Common causes include a damaged camera (possibly from water ingress or impact), broken or short-circuited wiring, blown fuse, or loose connector. I once ignored these minor issues out of laziness and nearly hit a flower bed while reversing. It's advisable to check the wiring connections, especially in the trunk area, after parking; gently wiggle them to see if the signal returns. If not, try replacing the fuse or securing the connector. Handling it yourself saves money, but if you can't fix it, don't delay—send it for repair immediately. Take good care of the camera daily, keeping it free from mud and water to extend its lifespan and reduce problems.