When the brake light malfunction prompt is triggered, the double flashing of stepping on the brake will light up, which may be caused by various reasons. Here are some possible reasons and corresponding explanations: 1. Brake light and dual flash circuit faults
1. Repair or assembly error: When repairing or replacing parts of a vehicle, if there is an assembly error between the brake light circuit and the dual flashing circuit, or if the wiring connection is improper, it may cause the dual flashing to occur when the brake is applied.
2. Short circuit or poor contact: There may be a short circuit or poor contact in the brake light circuit or double flash circuit, which can also cause the double flash to automatically light up when the brake is applied. 2、 System misjudgment
1. Computer system malfunction: The vehicle's computer system may incorrectly recognize and output signals when applying the brakes due to software errors, hardware failures, or other reasons, causing the flashing lights to turn on.
2. Sensor misjudgment: Bumps during vehicle operation may cause sensors on the tailgate or other parts to misjudge, leading to the perception that the vehicle is in a dangerous state and triggering the flashing lights. 3、 Functional design
1. Automatic brake light flashing system: Some vehicles may be equipped with an automatic brake light flashing system, which automatically turns on the dual flashing lights when the brake is applied to alert surrounding vehicles. Although this is not a malfunction, if it is accidentally triggered, it may confuse the car owner. 4、 Brake light malfunction
1. Brake light malfunction itself: damage to the brake bulb, brake circuit malfunction, or brake switch malfunction can all cause the brake light to malfunction. In some cases, these faults may indirectly cause the flashing lights to turn on. Solution
1. Check the brake light and dual flashing circuit: Check if the brake light is working properly, including the brake bulb, brake circuit, and brake switch. If any problems are found, replace or repair them in a timely manner.
2. Repair computer system: If suspected to be caused by a computer system malfunction, it is recommended to take the vehicle to a professional repair shop for maintenance.
3. Cleaning sensors: If it is caused by sensor misjudgment, you can try cleaning the relevant sensors to ensure their normal operation.
4. Turn off the automatic brake light flashing system (if the vehicle is equipped with it): If the vehicle is equipped with an automatic brake light flashing system and the owner does not want the function to automatically start when braking, they can try turning off the function in the vehicle settings.
The brake light malfunction prompt may be caused by multiple reasons, such as double flashing when stepping on the brake. When encountering such situations, car owners should promptly check and troubleshoot to ensure driving safety. If it cannot be resolved by oneself, it is recommended to send the vehicle to a professional repair shop for maintenance.