The old Focus brake bulb burned out when it was replaced

It may be caused by a high current, or an intermittent short circuit in a local circuit.

The solution to the problem is as follows: 1 detect whether the current milliampere number is greater than the agreed milliampere number of the bulb, you can measure it with current electricity, electrocute the base of the butt bulb, and then step on the brake pedal to read the milliampere, this data should be completed in two steps, 1 does not start the vehicle to read, 2 start the vehicle neutral gear acceleration reading, respectively, can determine whether the problem is caused by the generator output power, if both reading methods are the agreed milliampere, then a firm bulb base is required, If the dynamic current is too large, you need to see whether the line connected to the base of the bulb is too thick, if the detection is no problem, you can add a resistance of 15 ohms to the signal line to ensure that the bulb will not burn again, and will not affect the brightness of the light, supplementary questions: your brake bulb is broken on both sides or one side, if it is broken on one side, it is likely that the signal line on this side has leakage, you need to find out the signal line step by step. If you are afraid of trouble, you can find out the signal line, pull a new wire directly to the base of the bulb, and the other end is connected to the front of the signal line, and then cut the original signal line, so that you can judge whether the original signal line has an intermittent short circuit, I hope it can help you.

There must be a short circuit in the line.

To replace the classic Focus brake light, you need to open the trunk of the vehicle first, and the specific operation steps for replacing the classic Focus brake light are as follows:

1. Open the trunk first.

2. Lift the cover behind the brake light.

3. After lifting the brake light cover, you can see the brake light.

4. Unscrew the screws that fix the brake light.

5. Unplug the connecting wire between the brake light and the vehicle.

6. You can remove the brake light, and install the new one back in place to complete the operation.

The process of replacing the rear brake light is as follows:

1. Open the trunk and unscrew the screws on the lamp with a screwdriver;

2. Replace the bad lights;

3. Put on the new bulb, and then put the light on according to the original method;

Fourth, it is safe to drive at night. Don't worry about fines.

The repair method for a faulty Fox brake bulb is to simply replace it. The brake light is generally installed at the rear of the vehicle, and the main color is a red light to enhance the penetration of the light source, so that even in the case of low visibility, the vehicle driving behind is easy to find the brakes of the vehicle in front of it, so as to prevent the purpose of rear-end accidents. The following is the classification of car lights:

1. Headlamp, combined headlamp in the front of the car, it mainly plays the role of lighting and signaling. The light emitted by the headlights can illuminate the road conditions in front of the car body, so that the driver can drive safely in the dark;

2. Combined dry tail lights, combined tail lights are in the rear of the car, which mainly plays the role of lighting and signaling;

3. Turn signal, used to indicate left or right turn to other road users. The regulations require amber; Qingwei.

4. License plate lamp, license plate lamp It is mainly to illuminate the license plate, so that people can distinguish the vehicle license plate in the dark.

Fox ( Check price |Detailed explanation of the model Brake light replacement method: 1. Open the trunk and unscrew the screws on the lamp with a screwdriver. 2. Replace the bad lights. 3. Put the new bulb on well, and then put the lamp on according to the original method.

As the name suggests, a brake light is a light that lights up when a vehicle brakes. It is generally red, which plays the role of warning the vehicles behind; In addition, the brake light can effectively prevent the occurrence of vehicle rear-end collisions and reduce traffic accidents.

The brake light is brighter and more obvious, and it is mainly used to remind the vehicle behind to slow down or stop. If the brake light is used incorrectly or malfunctioning, it is easy to cause a rear-end crash. Also, pay attention to replacing the brake bulb:

The tail lights of vehicles produced in China are generally"One brew for two purposes"There are two filaments in the bulb, the weaker one is the small light, and the stronger one is the brake light. Some manufacturers design it as a high and low foot plug-in type, which is very convenient to use. Be careful not to reverse the connection when replacing.

Photo by Ling Xiufang) @2019

The model number of Ford's new Focus brake bulbs is P21 with a power rating of 21W.

Ford New Focus brake bulb replacement. Open the tailgate first, then remove the trim panel behind the taillights to reveal the rear of the taillights. Immediately after that, unscrew the fixing screws of the tail light assembly and remove the tail light assembly. After removing the assembly, find the brake light position and unscrew the brake light.

The brake light is generally installed at the rear of the vehicle, and the main color is a red light, so that the vehicle driving behind is easy to find the vehicle in front of the brake, and the purpose of preventing rear-end collision accidents occurs. The simple model is that the power supply passes through the insurance, and then to the brake switch, when the brake pedal is pressed for braking, the switch is connected, and the electricity is sent to two brake lights and a high-mounted brake light, and is connected with the car body through the negative line to form a loop.