The ambient lights don't come on, it may be caused by these reasons: 1. The ambient lights are turned off. The ambient light can be set in the center control host. If the ambient light is turned off by the owner, it will not light up automatically when driving at night. This is a normal phenomenon, the owner can check whether the ambient light is off.

2, ambient light line failure. Remove the ambient light, observe the ambient light and battery connection line whether there is broken, fractured and loose plug phenomenon, you can confirm the fault. If the ambient light line failure, is unable to energize, there will be no light.

3, ambient lighting control module failure. With the car diagnostic computer to read the ambient light control module data flow, analyze the ambient light control module working status is normal, can confirm the fault. If the ambient light control module is faulty, it can not receive the signal from the trip computer, which will lead to the ambient light can not be turned on.