- Faulty Bulb: If the brake lights are not working on one side while the tail lights are functioning properly, it could indicate a faulty bulb. Check the brake light bulbs on the affected side and replace any that are burned out.
- Electrical Issues: There may be an electrical problem causing the brake lights to malfunction on one side. Inspect the wiring connections and sockets for loose or corroded parts, and make sure the ground connection is secure.
- Brake Light Switch: The brake light switch is responsible for activating the brake lights when the brakes are applied. A faulty or malfunctioning brake light switch could be the cause of the brake lights not working on one side. Check the switch and replace it if needed.
- Fuse: Check the fuses related to the brake lights. A blown fuse could be interrupting the power supply to the brake lights. Replace the blown fuse if found.
- Faulty Wiring: Damaged or broken wires leading to the brake lights can cause them to malfunction. Inspect the wiring harness and replace any damaged sections.
- Faulty Brake Light Assembly: In rare cases, the entire brake light assembly could be faulty. If all the above steps do not resolve the issue, consider replacing the brake light assembly on the affected side.
Remember to always refer to the specific repair manual for your vehicle before performing any electrical or repair work.
