What is the problem of the brake tail light always being broken? How to solve the problem of the brake light always being broken?

The brake light is a vehicle information indicator light, usually located at the rear of the car. When the vehicle in front of you brakes, the brake light will light up. This will serve as a warning to the vehicle behind you to avoid rear-end collisions, especially on high-speed roads. Therefore, the brake tail light is still very important. If it is not lit or broken, the problem must be solved in time.

What is the problem of the brake tail light always being out of order?

The reasons why car light bulbs are old and broken are as follows:

1. The quality of the light bulb is not good. Because the brake light bulb is the most frequently used light in the car, it turns on and off more frequently than other lights, so it is particularly important to use good quality light bulbs, such as Osram, Philips, etc.

2. The base or socket of the bulb has poor contact. Long-term use will cause the contacts of the base to have poor contact or rust. Simply changing the bulb will not solve the problem. The bulb will still break even if it is replaced. Therefore, the base and socket should be checked. If there is any problem, it needs to be repaired or replaced in time.

3. Check whether the size of the brake fuse is the same as the requirement, and whether the brake grounding position is rusted or loose. If there is any, they need to be repaired. Because this will cause the brake light bulb to fail.

4. Is the generator voltage stable?

How to solve the problem of brake light failure

Generally speaking, brake light bulbs are easy to break, so rule out bulb quality issues first.

If both sides are broken at the same time, this is a circuit or insurance problem. In this case, you need to look at the circuit diagram of the car. If each side light has a separate grounding wire, first check whether the grounding wires on the left and right sides are rusted or oxidized. Because the grounding position will be oxidized and the contact will be poor, the current will be large and small, and it is easy to burn the bulb.

If the lights on both sides share the same ground wire, check whether the fuse is oxidized or has poor contact. Also check for brake light switch failure.

If the brake bulb on one side is broken, check whether the bulb holder is rusted or oxidized. The ground wire must be checked.

It is best to check whether the fuse is a large-level fuse. Generally, the brake light is a 5A fuse. If a 10A fuse is used, the brake light will also be affected by the excessive current in other equipment in the vehicle.

Finally, check whether the brake light circuit is cross-wired with other circuits.

Why is the brake light not on?

1. There is a problem with the brake switch. If there is a problem with the brake switch, all the brake lights will not light up. The brake switch is above the sliding point of the brake pedal.

2. If the light bulb is broken, if only one light bulb is not lit, 80% of the time it is the light bulb that is not lit. If all three light bulbs are not lit (there is also a high-mounted brake light), then there may be a problem with the circuit. Circuit problems include: short circuit, causing the light bulb to burn out; grounding is open or has poor contact; and the fuse is broken.

3. If only one or two lights are not on (the high-mounted brake light is on), it is recommended that you remove the side that is not on to see if the bulb is burned out. If it is burned out, you can go to the parts store to buy a new one and install it. If all the lights are not on, then you should go to the repair shop for repair! Because it is difficult for a person to find the source of the problem without tools, and it is easy to cause an accident if one brake light is not on.