What Causes the Reversing Camera Screen to Go Black?

[McTyler]

The reasons for the reversing camera screen going black are: 1. Aging of the video power cable: Try replacing it with a new one. If the black screen issue is resolved, it indicates a problem with the video power cable. 2. Wiring issues: This is the most common cause of failure. Since the wiring harness for the reversing camera runs from the dashboard to the trunk, the lengthy route increases the likelihood of poor contact at some point in the harness or connectors, requiring thorough inspection. 3. Prolonged use of the reversing camera leading to poor chip photosensitivity, resulting in a black screen.

[VanAliyah]

Last time I encountered a black screen on the reversing camera, I first climbed to the rear of the car and touched the camera—sure enough, it was covered in mud. A dirty camera is the most common cause, especially after driving on dirt roads in the rain. Then, I checked the wiring harness connector on the trunk lid, as repeatedly opening and closing the trunk can easily cause wire breakage. Don’t forget the fuse either—the 10-amp fuse for the reversing camera is labeled in the fuse box on the left side of the dashboard; if it’s blown, it needs replacement. A frozen head unit can also cause a black screen—just turn off the engine for ten minutes and restart it. You can usually fix it yourself by wiping the lens with a wet wipe and reconnecting the connectors. If that doesn’t work, then take it to the shop to check for wiring issues.

[KyleRose]

When diagnosing a reversing camera black screen, we typically check four key points. The most common issue is a faulty camera itself, especially aftermarket modified ones prone to water damage and short circuits. Inspect the wiring harness at the trunk hinge area where frequent bending often causes copper wire fractures. Then test the power supply voltage - a burned-out 12V to 5V voltage regulator module can cut power. Finally, troubleshoot potential head unit software conflicts, particularly common after map updates which may cause system freezes. We advise owners against dismantling the center console themselves, as damaging wiring harness connectors could create bigger problems. Vehicles with trajectory lines require recalibration, so it's best to have professionals read fault codes using diagnostic tools.

[LaIan]

My rearview camera often goes black after rain or car washes, and I later found out it's due to aging sealing rings. Water droplets seeping into the lens can cause short circuits, especially with aftermarket cameras that have poor sealing. Frost in winter can also blur and darken the image. Long-term driving on bumpy roads can loosen the connectors, and sometimes locking and restarting the car can restore functionality. Owners who have modified their center console screens should pay attention to poor wiring connections. Remember not to use high-pressure water jets directly on the license plate light area, as this can easily damage the wiring.

[McMary]

Don't panic if the reversing camera suddenly goes black. Check three aspects: First, see if the camera's power cable is loose—try unplugging and replugging the small connector near the license plate light. Next, check the head unit settings; sometimes the camera function is accidentally turned off. Lastly, recall if any electronic devices were recently installed, such as a dashcam wired incorrectly, which can interfere with the signal. For older cars, also pay attention to wiring aging—cracked insulation on the trunk wiring harness can cause a short circuit. During routine maintenance, you can ask the technician to check these issues; usually, the root cause can be identified in just a few minutes.