A brake light switch is a small device attached to the brake pedal mechanism. Generally, the role of these switches is to illuminate the brake light when brake pedals are pressed. However, in modern vehicles, this seemingly small switch can do a lot more.
The following guide will elaborate completely on the brake light switch location, its function and the cost of replacement.
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What is a Brake Light Switch
The brake pedal switch is a small controller responsible for activating brake lights whenever the brake pedals are pressed. These seemingly smaller components have some other major roles to play in modern car safety features. Some of its roles include:
- Enabling gear selection and push-button start.
- Making the anti-lock braking system workable.
- Works with vehicle stability control systems to provide traction.
Symptoms of Malfunctioning Brake Light Switch
There are no warning signs that indicate a failing brake light switch. However, flickering and instability in brake lights are observed. See the following list of symptoms of a failing brake light switch.
Brake Lights Illumination
The brake lights are meant to illuminate only when the brake pedals are pressed. When it malfunctions, it will either not illuminate on braking or continuously illuminate. In both cases, brake lights need to be repaired, as it can be a serious safety hazard.
Ignition Problems
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The keyless ignition systems are designed to operate only when the brake pedals are pressed. The brake pedal switch is responsible for transmitting brake pedal signals to the car computer. If the switch malfunctions the signals are not transmitted properly, thus causing ignition issues. It is often characterised by no-crank when the engine start button is pushed.
ABS Warning Light
The dashboard warning light showing fault in ABS is illuminated to indicate the number of malfunctioning. One of these malfunctioning is a faulty brake light switch. When the brake switch is broken or not transmitting signals properly the ABS warning light illuminates.
Malfunctioning Cruise Control
The majority of vehicles, cruise control and brake lights share the same switch. Therefore, when the brake light switch is broken or malfunctioning the cruise control automatically shuts down.
How to Check Brake Light Switch
The most convenient way of checking the brake light switch is by a voltmeter. The brake light switches are often located below the steering wheel and right above the brake pedal. See the following process of checking the brake light switch.
- Unassemble all the wires connected to the switch.
- Now, closely observe the circuits on the switch. Some switches also have the circuit diagram printed on them.
- Connect the voltmeter to each circuit and observe the flow of current by pressing and releasing the brake pedal. No current reading on the voltmeter represents a faulty brake light switch.
Make sure to read the user manual before checking the brake light switch, as the working of switches varies from manufacturer to manufacturer.
Cost of Replacing Brake Light Switch
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Brakes light switches are manufactured to work for a longer period. However, it may malfunction due to a number of reasons. The cost of replacing brake light switches is AED 100 excluding the labor charges. The price may vary depending upon the car model and manufacturer.
How to Replace Brake Light Switch
The brake light switch replacement is not a difficult task and can be done at home. Although, you must have some technical knowledge of your vehicle. See the following process of replacing a brake light switch at home.
- Unscrew the panel under the steering
- Locate the brake pedal switch
- Carefully press the upper portion of the switch that separates the switch from the electric wires
- Remove and place a new switch on the same place
- Rotate it clockwise till you hear a ‘Click’ sound. The sound indicates that the switch is settled down in its place.
- Reconnect the upper portion of the switch
This process is valid for the single brake light switches. Few modern vehicles have more complicated brake switches that enclose multiple wirings. In that case, it is recommended to approach a professional for its replacement.
This was all about the brake light switch in cars. The brake light switches play a significant role in vehicle and road safety. Many other modern features that can make your drive secure. If you want to leverage these features, browse through these used cars for sale in the UAE.
Stay tuned to UAE’s top auto blog for more information on brake light switches.
Source: https://t-tees.com
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