There are a few possible reasons why the lights on your dashboard are so weak. Here are some of the most common causes:
Dimmer switch: The dimmer switch is a knob or button that controls the brightness of the dashboard lights. If the dimmer switch is turned down, the lights will be dim.
Blown fuse: A fuse is a small piece of metal that protects electrical circuits from overloading. If a fuse blows, it will stop the flow of electricity to the dashboard lights.
Burned-out light bulb: The dashboard lights are usually made of incandescent bulbs, which can burn out over time. If one of the bulbs is burned out, the lights will be dim.
Wiring problem: There could be a problem with the wiring that connects the dashboard lights to the fuse box. This could cause the lights to be dim or not work at all.
If you have checked all of the above and the dashboard lights are still dim, then there is likely a wiring problem. You should take your car to a mechanic to have the wiring repaired.