Why are the running lights on but the brake lights not working?
1 Answers
The reasons and solutions for the running lights being on but the brake lights not working are as follows: 1. Check the brake light bulb: The brake light is the most frequently used light on a car, and the lifespan of the bulb is relatively short. When the brake light is not working, the first thing to consider is the brake light bulb. Simply replace the bulb. 2. Check the brake light switch: If the brake light switch is faulty, none of the brake lights will work. During inspection, you can use a wire to connect the brake light switch. If the brake lights turn on, it indicates the switch is damaged, and replacing the switch will solve the problem. 3. Check the fuse: If both the bulb and the switch are confirmed to be functioning properly, then check the fuse. Some cars do not have a separate fuse for the brake lights and share one with other electrical devices. In this case, check the operation of other electrical devices in the car. Identify any non-working devices and replace the corresponding fuse. 4. Check the brake light ground wire: The tail lights on a car share a common ground wire. If the ground wire is broken or has a poor connection, it can also cause the brake lights to not work. Therefore, do not forget to check the ground wire.
