What are the reasons for the non-illumination of the Haval H6 center control screen?

[DiBraxton]

Low voltage, abnormal power supply, poor contact of the wiring harness, loose power plug, etc., can all cause the Haval H6 center control screen to not illuminate. Low voltage: If it occurs occasionally, it is normal because all the power is used for ignition when the car starts, resulting in relatively low voltage. There is no need to worry; restarting the car once will return it to normal. Abnormal power supply: If the screen does not illuminate multiple times when starting the car, check whether the power supply to the display is normal. If the power supply is abnormal, the power module should be replaced. Poor contact of the wiring harness: Check the cables on the back of the device to see if there is such a problem. If this is the cause, it is recommended to replace the connection. Loose power plug: If there is no image but sound, it indicates that the power plug of the navigation display is loose and can be sent to a repair shop for fixing. If all the above checks are normal, or if there is neither sound nor image, then the display is damaged and needs to be replaced.