What is the issue when the car navigation screen is not lit but there is sound?

[MartinRose]

The reasons why the car navigation screen is not lit but the sound and touch screen are functioning normally are: 1. The battery of the car navigation control display is damaged. 2. The power plug of the navigation display is loose. 3. The touch screen of the navigation display is damaged. Below are the solutions for when the car navigation screen is not lit but the sound and touch screen are functioning normally: 1. Check the stability of the car's power voltage: if it is stable, then inspect the cables on the back of the machine to see if there is an issue. 2. Check the touch circuit: confirm if there is a problem with the wiring. 3. Check the decoding chip or core module: determine if the decoding chip or core module is not working or is damaged.

[OTucker]

The car navigation screen is not lit but there is sound. I've encountered this issue several times. First, check the fuse - it's common for the navigation system fuse to blow. Look for the fuse box location, usually near the driver's footwell, pull it out and try replacing it with a new one. If that's not the issue, consider that the screen backlight might be faulty - aging LED tubes in the LCD screen can cause a black screen while sound remains. Also check the settings - the screen brightness might have been accidentally dimmed, go into the system menu to adjust it brighter. Sometimes the system freezes, try restarting the navigation or resetting by disconnecting the battery. Checking for loose or broken wiring connections is also important - gently unplug and reconnect them. For prevention, try to avoid parking in direct sunlight to protect the screen. Get it fixed as soon as possible - compromising driving safety isn't worth it.

[DelPenelope]

Navigation has sound but the screen is not lit? Let me share from experience. Software issues are quite common, such as system crashes after map updates—just force restart the navigation module. Incorrect system settings are also frequent; go in and adjust the brightness and contrast higher to avoid misoperation. On the hardware side, if the backlight is broken, of course, you can't see anything, but the sound continues to play. Check if the wiring connectors are loose; a simple reconnection might solve it. If a fuse is blown, replacing it is low-cost. Avoid using electricity for long periods when parked to prevent high loads. Don’t delay; driving at night is even more dangerous. Get to a repair shop promptly—professional tools will quickly diagnose the issue.

[LeEsther]

There are several possible causes for this issue. A hardware failure in the screen, such as a broken backlight, can prevent image display while the audio circuit continues to function normally. Wiring problems are crucial - loose connectors or broken wires may interrupt signal transmission to the screen. When fuses blow, they cut off power supply to the system; consult your vehicle manual to locate them. Incorrect display may also occur if brightness settings are too low in the configuration. Quick solutions: First, restart the navigation system to reset the software; then check the fuse box; finally test the wiring connections. Safety first - never operate these functions while driving. Regular maintenance can help prevent such problems from occurring.

[LolaLynn]

When my navigation system had this issue, I found it was just the brightness setting turned down. Going into the menu and adjusting it higher solved the problem. Hardware problems like a backlight failure or burned internal screen circuits are also common, causing a black screen but with sound still working. Check the fuses and wiring connections, especially if the interface is loose, just reconnect it. Avoid improper modifications that could cause short circuits. Turn off the navigation system when parking to save power, and minimize use in high-temperature environments. If the repair is simple, do it yourself; for complex issues, go to the 4S shop. Act quickly and don't delay—safe driving relies on your equipment.