Why is the central control screen not lighting up?

[VonGabriella]

Inspection process for a non-lighting central control screen: 1. If the central control screen is black and not lighting up, you can first try restarting the screen by turning the ignition on and off. If this doesn't resolve the issue, it is likely due to poor contact in the wiring. It is necessary to promptly check whether there are any loose connections in the wiring. If there are, this will naturally cause the central control screen not to light up. In this case, simply reconnecting the loose parts properly should solve the problem. Of course, it could also be due to aging of the power signal cable. You can try replacing it with a new one. If the black screen issue is resolved, it confirms that the problem was indeed with the power signal cable. 2. If after checking the above two scenarios the central control screen still remains black, it is probably because the screen has been used for too long, leading to a malfunction in the power supply module. This not only causes lag but, in severe cases, results in a black screen. It could also be due to defects in the circuit design. However, issues like module abnormalities and design defects are beyond the scope of DIY fixes and require inspection, repair, or replacement at a professional repair shop.