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What Causes the Car's Central Control Display Screen Not to Light Up?

2 Answers

VanValentina

07/28/25 11:14pm

Possible reasons why the central control display screen does not light up: 1. The power supply to the display screen is abnormal. If the power supply is abnormal, please replace the power supply module. 2. There is a problem with the cable connection. You can replace the cable. 3. The display screen is damaged. If replacing the display screen restores normal function, then the display screen is damaged. 4. There is a problem with the video output signal from the motherboard. You can replace the motherboard for testing. Below are the solutions for when the car's central control screen does not light up: 1. If there is a loose connection in the wiring, simply reconnect the loose part properly. 2. If the power signal line is aging, try replacing it with a new one. 3. If the screen has been used for too long, causing the power supply module to malfunction, it is necessary to go to a repair shop for inspection and repair or directly replace it.

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McCharles

08/12/25 3:38am

I once experienced a sudden blackout of my car's central control screen. Right after starting the car, I noticed the screen was completely dark with no display. The reasons can be multifaceted: the most common is a blown fuse, possibly due to circuit overload or voltage instability; screen aging or dead pixels are also quite common, especially after several years of use; software freezes or system crashes can also cause the screen to stop working, such as when the navigation app crashes; loose cables or poor plug contact often become problematic on bumpy roads; lastly, there's the control module failure—this module processes signals, and if it fails, the entire system goes down. That time, I tried restarting the vehicle or holding down the system reset button, which brought some light but ultimately required a trip to the 4S shop for inspection. They replaced the fuse and fixed it. Remember, don’t attempt self-disassembly to avoid electric shock, and regularly cleaning screen dust can help prevent issues.

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Why does Geometry A sell worse than Aion S?

The following three points are the main reasons why Geometry A sells worse than Aion S. In fact, apart from overall strength being a major factor, brand soft power also plays a significant role. The dismal sales of Geometry A are largely due to its low brand recognition. 1. Aion S actually has stronger overall product capabilities. In terms of range, Geometry A is one of the few models in its class that can reach 600km, while the top-tier Aion S has a range of 510km, slightly inferior to Geometry A. However, in real-world usage, Aion S experiences less battery drain in winter compared to Geometry A, so the difference in overall range is not as significant as one might think. Additionally, Aion S has a clear advantage in interior and exterior design. 2. Price factor: The MSRP of Aion S is 139,600-205,800 yuan, while the terminal price of Geometry A is 118,700-188,700 yuan. Although Geometry A appears to have a price advantage, Aion S offers more attractive terminal discounts. The current terminal price of Aion S is 129,800-165,800 yuan, while Geometry A ranges from 115,000-178,000 yuan, with mid-to-high trim levels being more expensive than Aion S. Therefore, the more capable Aion S is undoubtedly more favored. 3. Geometry's brand influence is weaker than Aion's. Geometry and Aion originally had similar positioning, and both are backed by major companies, but consumers have a stronger impression of Aion.

What kind of car is suitable for driving on the Sichuan-Tibet line?

Of course, an off-road vehicle would be better. Currently, on the Sichuan-Tibet line, the commonly used mainstream off-road vehicles in Tibet include the BAIC Baru, Changfeng Liebao, Toyota Prado, and Mitsubishi Pajero. Now, let me explain why I think these vehicles are good choices. As economical off-road vehicles in the Tibet region, the Nissan and Chang BJ40 off-road vehicles have power and configurations that meet the performance requirements for off-road vehicles in Tibet. This is because they have good vehicle power, strong endurance, easy maintenance, readily available parts, and low requirements for refined oil. They can easily handle the challenges of entering Tibet. Toyota Prado and Toyota Land Cruiser, whether in terms of vehicle purchase price (over 400,000 RMB) or overall configuration, are mid-to-high-end models in Tibet. They outperform other domestic models in terms of power, passenger comfort, and vehicle safety coefficients.

Why is damping sheet not used for trunk sound insulation?

The reason damping sheet is not used for trunk sound insulation is that it has limited effectiveness against airborne noise. Damping sheets are primarily used in areas with thin metal panels and noticeable vibrations, such as doors, engine hoods, and trunks. It's important to note that covering the entire interior with damping sheets, while improving sound insulation, can make low-frequency noise more uncomfortable. Damping sheets are typically made of butyl rubber, a sticky, sheet-like material similar to chewing gum that can be directly adhered to metal panels. They also feature an aluminum skin for constrained layer damping to enhance effectiveness. Damping sheets effectively suppress metal vibrations, increase rigidity, and reduce noise at its source. Sound insulation foam is a low-density, soft, sponge-like material with numerous pores that block sound transmission through air, thereby reducing interior noise. It works by interrupting the noise transmission path. Acoustic foam, similar to sound insulation foam but more porous, absorbs airborne noise by allowing sound waves to vibrate within its pores, converting the energy into heat and dissipating the noise. The key difference is that sound insulation foam reflects noise, while acoustic foam does not. Generally, sound insulation foam performs better in noise reduction. Reasons why sound insulation foam is better than damping sheets for trunk sound insulation: Sound insulation foam not only reduces noise but also provides thermal insulation; it decreases surface heat in the trunk, prevents fogging in rainy weather, and offers some protection against scratches.

Why does it take several attempts to start the engine after refueling?

Taking several attempts to start the engine after refueling is likely due to vapor lock. Next time when turning off the engine, avoid shutting off the ignition immediately after pressing the accelerator; instead, let the engine idle for about ten seconds before turning it off. Vapor lock occurs when high temperatures in the fuel line cause gasoline to vaporize, creating bubbles. In other words, these bubbles of gasoline (not air) block the fuel line, leading to poor fuel flow, and in severe cases, causing the engine to stall. Below is an introduction to gasoline octane ratings: 1. 90-octane gasoline: Suitable for gasoline vehicles with an engine compression ratio below 8.5. 2. 93-octane gasoline: Suitable for gasoline vehicles with an engine compression ratio between 8.6 and 9.9. 3. 97-octane gasoline: Suitable for gasoline vehicles with an engine compression ratio between 10.0 and 11.5. 4. 98-octane gasoline: Suitable for gasoline vehicles with an engine compression ratio above 11.6.

What to Do When There's a Car in Front During Gear Shifting?

Handling methods when there's a car in front during gear shifting: When there's a car in front during upshifting: While driving, if there is a sufficiently long safe distance, you can continue upshifting to 4th gear (in the driving test, students are generally required to upshift to 4th gear and then downshift from 4th to 1st gear). The speed in 4th gear is between 40-60 km/h, maintaining a safe following distance. If there isn't enough safe distance, you can confirm safety, turn on the left turn signal for 3 seconds, then upshift and change lanes to overtake. If the vehicle in front also accelerates, abandon the current overtaking maneuver and return to the original lane. Note: If the driving test system does not announce an overtaking instruction or the examiner does not require overtaking, do not overtake on your own. When there's a car in front during downshifting: First, lightly apply the brakes. Once the speed matches the gear, press the clutch fully and shift to the corresponding gear, then continue following at a safe distance. If the vehicle in front slows down significantly, stop and wait if necessary. Precautions for gear shifting: The test vehicle's gear lever is equipped with sensors, so do not skip gears when shifting. This means you cannot directly shift from 4th gear to 2nd gear or from 2nd gear to 4th gear; you must go through 3rd gear.

Is it necessary to carry the car insurance policy in the vehicle?

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