What are the reasons for the intermittent display of the car navigation screen?
4 Answers
The reasons for the intermittent display of the car navigation screen are: 1. Poor contact or aging of the power signal cable; 2. Faulty power supply module due to prolonged screen usage; 3. Defective circuit design requiring inspection, repair, or replacement at a repair shop. Methods to remove scratches from the car screen include: 1. Gently rub along the direction of the scratch with a soft pencil eraser until the scratch disappears; 2. Mix household white vinegar and distilled water in a 1:1 ratio, fold a soft cotton cloth, dip it into the vinegar solution, and gently wipe along the direction of the scratch.
As someone who frequently repairs cars, I often encounter the issue of the navigation screen going black while lit. The most common cause is unstable wiring connections, such as loose plugs or corroded connectors, which may disconnect and reconnect when the car shakes during driving. If the fuse is aged or has poor contact, intermittent current flow can also cause this. On the software side, system lag or background bugs may lead to screen flickering. Significant weather changes can exacerbate connection issues due to metal contraction. I recommend regularly checking if the wiring plugs are secure and trying to restart the navigation system. If the problem persists, it's best to have it inspected at a professional shop—driving with a malfunctioning navigation system increases the risk of getting lost and accidents, so don't skimp on small costs to invite bigger troubles. Long-term neglect may worsen the issue to the point where the screen completely fails, affecting usability. Make it a habit to have a technician check it during every maintenance session.
Having driven for decades, occasional black screens on the navigation display are quite common. I believe the first thing to check is the wiring connections; loose plugs can cause poor contact due to vibrations—gently push and pull them to see if they're secure. Second, check if the fuse is partially blown, especially on hot days when overheating is more likely. Aging wiring is also a culprit, as old wires with cracked insulation can lead to internal poor contact. During rainy seasons, high humidity can cause intermittent short circuits. Try a soft reboot of the navigation system—sometimes a system error can be fixed with a simple restart. I usually take photos of the issue when it occurs as evidence to aid in diagnosis during repairs. Don’t underestimate this problem; relying on a malfunctioning navigation system can lead to accidents, especially on long drives. If you’re not confident in your DIY skills, get it repaired promptly to avoid damaging more components. Keeping the car’s infotainment system clean to reduce dust buildup can also help prevent issues.
I think the intermittent issues with the navigation screen are mostly due to software problems. There might be system bugs or a need for updates, and insufficient memory can cause lagging leading to black screens. On the hardware side, significant power fluctuations, such as unstable battery voltage or insufficient charging, could be the cause. Slightly loose wiring connectors or dust blocking contact points can lead to interruptions when driving on bumpy roads. It's recommended to first try restarting the navigation system and clearing the memory. Regular system updates can reduce errors. Avoid installing third-party applications that might interfere with the system. A simple check is to see if the issue occurs under specific conditions, such as when starting a cold engine, which might indicate a battery problem. Manually inspect the plugs for corrosion and ensure they are tightly secured.
