What are the four wires of the brake light switch?

1 Answers
McBrynlee
07/24/25 6:27pm
Four-wire brake light switch respectively are: one is the 12-volt power supply, one is the brake signal wire for the ABS system ECU (ECU is the electronic control unit, also called the vehicle computer), one is the brake signal wire for the automatic transmission ECU, and one is the wire to the rear brake indicator light. Below is relevant information about the brake light: 1. Reminder function: The brake light is the light that turns on when the vehicle brakes. It is generally red and serves to warn the vehicles behind. The brake light is bright and quite noticeable, mainly used to alert the vehicles behind that this vehicle is slowing down or stopping. 2. Preventing rear-end collisions: If the brake light is used incorrectly or malfunctions, it can easily cause rear-end collision accidents.
Was this review help?
2
2
Share
More Forum Discussions

Does the 10th-generation Civic have tire pressure monitoring?

10th-generation Civic has tire pressure monitoring. Unlike directly measuring the tire pressure of each tire, the tire pressure monitoring system monitors the vehicle and compares the rolling radius and rotational characteristics of each wheel and tire to determine whether one or more tires are significantly underinflated while driving. The 10th-generation Civic is a car launched by Dongfeng Honda, with body dimensions of 4649mm in length, 1800mm in width, and 1416mm in height, and a wheelbase of 2700mm. The Civic has a stylish and elegant appearance, with smooth body lines, and the hatchback design has undergone significant changes compared to the previous model. The interior of the Civic is finely crafted, with a fashionable design that highlights a sense of hierarchy, and it is equipped with rich functional configurations and comfortable seats.
20
3
Share

How to Park an Automatic Transmission Car on a Slope?

Methods for parking an automatic transmission car on a slope: 1. When parking on a slope, first press the brake pedal to bring the car to a complete stop, then shift into N (Neutral) gear; 2. Engage the parking brake firmly, release the brake pedal, and after ensuring the vehicle is stationary, shift into P (Park) gear; 3. When starting on an uphill slope, always ensure the handbrake is engaged and press the brake pedal firmly with your right foot before starting the car. Only proceed with starting the car once everything is ready. Automatic transmission cars are equipped with an automatic gearbox, which generally includes the following gears: P (Park), R (Reverse), N (Neutral), and D (Drive). Remember that unlike manual transmission cars, automatic transmission cars do not allow the use of a clutch slip technique (half-clutch). Special attention should be paid to controlling the accelerator pedal when reversing.
8
4
Share

How to Tell if a Car Pulls to One Side?

To determine if a car pulls to one side, the method is: while driving, if the steering wheel is kept steady, the car should generally move straight under normal circumstances. If it deviates to the left or right, this is what's known as pulling to one side. To check for this, first ensure that all four tires have equal and balanced air pressure. Then, drive on a straight, flat road with your hands lightly holding the steering wheel in a relaxed grip, and conduct the test under conditions without crosswinds. If the car's trajectory shifts to the left after driving a certain distance, it is considered to be pulling to the left; if it shifts to the right, it is pulling to the right. If the car starts pulling to one side after suspension modifications, this is due to changes in the suspension components' parameters, and a four-wheel alignment is required to readjust these parameters.
5
1
Share

How to Unlock the Steering Wheel of a Guangqi Honda Accord?

Guangqi Honda Accord steering wheel unlocking method: Gently turn the key with your right hand while lightly turning the steering wheel with your left hand, and the steering wheel will naturally unlock. During maintenance or before driving, always pay attention to whether the motor plug above the clutch pedal is loose, which can be checked by hand. In case of an emergency where the steering wheel suddenly locks while driving, brake immediately, restart the vehicle, and promptly contact a 4S dealership for inspection. The body dimensions of the Guangqi Honda Accord are 4839mm in length, 1862mm in width, and 1449mm in height, with a wheelbase of 2830mm. In terms of power, the Guangqi Honda Accord uses the 1.5T Earth Dreams turbocharged engine found in the Civic and CR-V, with Honda adjusting its maximum torque. The maximum power is 143 kW, and the maximum torque is 260 Nm.
20
3
Share

Where is the cabin air filter of the Familia located?

The cabin air filter of the Familia is located behind the glove box on the passenger side. If you want to replace the cabin air filter, you need to remove the glove box on the passenger side. The cabin air filter is a wearable part that needs to be replaced regularly. If it is not replaced for a long time, it will affect the health of the passengers in the car. The car air conditioning is an important comfort configuration in a car, and it is used almost every day during winter and summer. The Familia is a model produced by Haima Automobile, with body dimensions of 4770mm in length, 1800mm in width, and 1695mm in height, and a wheelbase of 2800mm.
16
2
Share

Can a motorcycle pass the annual inspection after installing ABS privately?

Motorcycles with privately installed ABS cannot pass the annual inspection. Here is an introduction to motorcycles: 1. Definition: A motorcycle is a two-wheeled or three-wheeled vehicle driven by a gasoline engine and steered by handlebars. 2. Features: Lightweight, flexible, and fast, widely used for patrol, passenger and cargo transportation, and also as sports equipment. 3. Applications: Broadly speaking, motorcycles are divided into street bikes, road racing motorcycles, off-road motorcycles, cruisers, and touring bikes. A motorcycle consists of five main parts: the engine, transmission system, running gear, steering and braking systems, and electrical instrumentation. The overall structure and names of the components of a motorcycle.
17
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.