What Causes the Navigation Screen to Go Black with Sound but No Image?
3 Answers
The reasons for the navigation screen going black with sound but no image are: 1. Unstable power supply voltage in the car; 2. Issues with the cables on the back of the central control display. The solutions for a black screen on the car's central control display are: 1. Check if the host power supply is properly connected and if the voltage is stable; 2. Inspect whether the data cable connector of the display is in good contact with the signal output interface of the graphics card; 3. Verify if the car module has failed. The car's central control display includes the central control door lock system, central console, and audio control panel. Its functions are: 1. The central lock actuator can execute the driver's commands to lock or unlock the doors; 2. Control adjustments for memory seats, music system, entertainment system, roof camera function, and automatic parking function.
I've seen many similar cases where the navigation screen goes black but still has sound, which is mostly a display issue. The most common cause is a faulty backlight—you can actually faintly see the image if you shine a flashlight on the screen. It could also be due to a loose connection in the ribbon cable caused by vehicle vibration. Additionally, system crashes or software conflicts can cause a black screen, but a restart usually fixes it. Check the brightness settings in the menu, as accidentally setting it to the lowest level can make it appear black. Abnormal power supply to the navigation motherboard can also affect the display without impacting audio output. I recommend first trying a forced restart by holding the power button, then checking the brightness and connection cables. If you're handy, you can disconnect the power for a few minutes to reset the system. If all else fails, it's best to visit a professional repair shop to diagnose hardware issues.
Last time I went on a long-distance drive, I encountered a situation where the navigation screen went black but still had sound, which made me sweat with anxiety. First, I tried holding down the power button for 15 seconds to force a restart, but the screen just flickered and remained black. Suddenly, I thought it might be a brightness issue. After fumbling around on the screen for a while, I managed to bring up the menu and found that the brightness had been turned down to the minimum. Changing it back to normal fixed the problem. A friend mentioned that his car had a modified navigation system, and the black screen was caused by poor contact in the wiring. He solved it by having the wires reconnected at a shop. If adjusting settings and restarting don’t work, it’s likely a hardware issue. Disassembling the center console yourself is risky, especially when it involves wiring. It’s best to have a professional check the backlight module or the screen itself. To minimize voltage fluctuations affecting the device, try to avoid frequently turning the navigation system on and off.
