What are the reasons for frequent failure of car brake lights?

1 Answers
MacCourtney
07/30/25 8:57am
Car brake lights frequently fail due to the following reasons: 1. Malfunction in the vehicle's power supply circuit; 2. Poor quality of the brake lights; 3. The brake lights are located in an area with significant vibration; 4. Inconsistent wattage power between the two brake lights. Brake lights are typically installed at the rear of the vehicle, with a red color to enhance the penetration of the light source and serve as a warning to vehicles behind. The working principle of brake lights is that power passes through a fuse to the brake switch. When the brake pedal is pressed, the switch connects, sending electricity to the two brake lights and one high-mounted brake light, completing the circuit through the negative wire connected to the vehicle body.
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