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Function of the Throttle Position Sensor:
The TPS is a sensor located on the throttle body of a vehicle. Its primary function is to monitor the position of the throttle valve – which controls the amount of air entering the engine – and send this information to the engine control unit (ECU). Based on the data received from the TPS, the ECU can adjust the air-fuel mixture, ignition timing, and other parameters to optimize engine performance.

Conclusion:
Understanding the basics of electrical and lighting systems is essential for maintaining a safe and well-lit home. By following the tips outlined in this article and staying informed about the latest developments in electrical technology, you can ensure that your electrical and lighting systems function properly and efficiently for years to come.

2. Maintenance Tips:
- Check Fluid Levels: Regularly inspect and top up engine oil, coolant, brake fluid, power steering fluid, and washer fluid.
- Replace Filters: Change the engine air filter and cabin air filter periodically to ensure optimal engine performance and air quality inside the vehicle.
- Inspect Belts and Hoses: Check for signs of wear and tear on drive belts and hoses, and replace them if necessary to prevent breakdowns.
- Monitor for Leaks: Keep an eye out for leaks around fluid reservoirs and hoses, as they can indicate underlying issues that need to be addressed.
- Follow Service Schedule: Adhere to the manufacturer's recommended maintenance schedule for oil changes, tune-ups, and other routine service tasks.

2. Lighting System:
A lighting system is a subset of an electrical system that is dedicated to providing illumination in a building. Some key components of a lighting system include:
- Light fixtures: Light fixtures come in various types, including ceiling lights, wall sconces, and Cold Start Enrichment lamps, and provide the actual illumination in a room.
- Bulbs: Bulbs are the light source within a fixture and can be incandescent, LED, fluorescent, or halogen, each with its own advantages and disadvantages.
- Dimmers: Dimmer switches allow you to control the intensity of the light in a room, providing flexibility and energy savings.
- Sensors: Motion sensors and light sensors can be used to automatically turn lights on and off based on occupancy or ambient light levels, increasing energy efficiency.

The steering rack is a long metal bar with teeth along its surface that mesh with the teeth of a pinion gear connected to the steering wheel. As the driver turns the steering wheel, the rotational motion is transferred to the pinion gear, causing the steering rack to move linearly in either direction. The movement of the rack is then transmitted to the tie rods, which in turn move the front wheels accordingly.

The engine compartment of a vehicle, commonly referred to as "under the hood," houses the heart of the automobile – the engine. This enclosed space is where the magic happens, as it is responsible for generating the power required to drive the vehicle. Understanding what goes on under the hood can help you better appreciate the complexity of your vehicle and maintain it properly.

The steering rack is a critical component of your vehicle's steering system, responsible for converting the rotational motion of the steering wheel into a linear motion that steers the front wheels. This vital part plays a key role in ensuring the driver can accurately control the direction of the vehicle, making it a fundamental safety feature in modern automobiles.

In conclusion, the engine compartment is a crucial part of your vehicle that requires regular attention and maintenance to keep your car running smoothly. By understanding the components under the hood and following proper care practices, you can extend the life of your vehicle and avoid costly repairs in the future. Remember, a well-maintained engine compartment is key to optimal vehicle performance and reliability.

1. Components of the Engine Compartment:
- Engine: The main component of the engine compartment, it is the powerhouse that converts fuel into mechanical energy.
- Cooling System: Consists of a radiator, water pump, thermostat, and hoses to keep the engine cool during operation.
- Fuel System: Includes the fuel tank, fuel pump, fuel injectors, and fuel lines that deliver fuel to the engine.
- Ignition System: Comprised of spark plugs, ignition coils, and wires that ignite the fuel-air mixture in the engine cylinders.
- Electrical System: Includes the battery, alternator, and electrical wiring that power various components like lights, radio, and sensors.
- Fluid Reservoirs: Hold essential fluids like engine oil, brake fluid, power steering fluid, and windshield washer fluid.
- Belts and Pulleys: Connect various components like the engine to the alternator and water pump via drive belts and pulleys.

1. Electrical System:
An electrical system consists of several components that work together to distribute electrical power throughout a building. The main components of an electrical system include:
- Electrical panels: These panels receive electricity from the utility company and distribute it to various circuits within the building.
- Circuit breakers: Circuit breakers protect the electrical system from overloads and short circuits by interrupting the flow of electricity when necessary.
- Wiring: Wiring connects the electrical panels to outlets, switches, and light fixtures throughout the building.
- Outlets and switches: Outlets provide a point for electrical devices to be plugged in, while switches control the flow of electricity to light fixtures and other devices.