2. Faulty dimmer switch: The dimmer switch controls the brightness of the dash lights. If the dimmer switch is faulty, it can prevent the dash lights from working. Try turning the dimmer switch to different positions to see if the dash lights come on. If the dash lights turn on when the dimmer switch is in a certain position, the dimmer switch may need to be replaced.
3. Faulty ground connection: The instrument cluster needs to be properly grounded in order to function. If the ground connection is faulty, it can prevent the dash lights from working. Check the ground connection for the instrument cluster and make sure it is clean and tight.
4. Faulty instrument cluster: If none of the above solutions work, the instrument cluster itself may be faulty. An auto electrician may need to inspect the instrument cluster to identify and repair the problem.
