What's the matter if the car screen doesn't light up?
3 Answers
Car screen not lighting up may be due to poor line contact, and it is necessary to check whether there is a loose connection in the line in time; it may also be because the power signal line has aged, and you can try to replace it with a new one. The car central control screen is a car electrical appliance with a relatively high failure rate, and it may become laggy after long-term use. The car multifunctional display screen is a screen that intuitively displays the status of various functions of the car in the form of images or text. The car multifunctional display screen is an important part of the car audio-visual system, which can receive car audio-visual signals and play them back on the display, and can also be used on similar sports tools of cars.
A non-illuminating car screen is quite common in my repair experience. Start by checking the power supply—does the button not respond when pressed? It might be a blown fuse. Look for the fuse box, usually located under the driver’s seat or hood. The small box contains fuses labeled something like ‘AUDIO’—pull it out to see if it’s broken and replace it with a new one. If that doesn’t work, inspect the wiring—loose connectors or moisture-induced short circuits, especially after rain, are common culprits. Be careful not to touch other wires when reconnecting. If the issue persists, the system may have crashed—turn off the engine, wait a few minutes, and restart. Lastly, the screen hardware might be faulty, requiring a replacement at a 4S shop. I usually DIY with a multimeter for circuit checks, but always prioritize safety—don’t tamper with electrical components recklessly. Regular maintenance checks on wiring are recommended to prevent such faults from affecting driving.
My car screen went black again, which is really disrupting my navigation. After noticing it, I immediately tried the reset button—many center console screens have a small reset hole in the corner, so try pressing and holding it. If there's no response, check if the fuse is blown—refer to the car's fuse box manual for its location. Possible causes include loose connectors or system overload. Once, I had a short circuit after a modification, which was later fixed at a professional shop. Avoid disassembling it yourself to prevent damage to the car's electrical system, and remember to turn off the screen when not in use to save power. Weak battery can also cause display issues, so check if the voltage is stable. The quickest solution is to take it to a repair shop—it saves time and is safer.
