Wiring harnesses for internal components in the automotive field are widely used, and they are an important part of the vehicle's electrical system, ensuring that the various components of the vehicle function properly and work together. Below are some common wiring harnesses for automotive interior components:

Engine Wiring Harness: This is one of the most important wiring harnesses in the car, which connects the engine control unit (ECU) with various sensors and actuators on the engine. The engine harness is responsible for transmitting control signals and power to ensure the normal operation of the engine.

Door wiring harness: The door wiring harness connects all kinds of electrical equipment on the door, such as door locks, window lifters, audio systems, etc. It ensures that the electrical equipment in the door is not damaged. It ensures the normal operation and signal transmission of electrical equipment in the door, providing a comfortable driving experience.

Lighting Harness: The lighting harness is mainly responsible for connecting the vehicle's lighting system, such as headlights, rear tail lights, turn signals, etc. It ensures the power supply and signal transmission of the lighting equipment. It ensures the power supply and signal transmission of the lighting equipment, provides sufficient lighting and signal indication, and guarantees driving safety.

Air Conditioning Harness: The air conditioning harness connects various components of the vehicle air conditioning system, such as the compressor, condenser, evaporator, etc. It is responsible for transmitting control signals and power. It is responsible for transmitting control signals and power supply to ensure the normal operation of the air conditioning system and provide a comfortable driving environment for passengers.

In addition, depending on the specific configuration and functional requirements of the vehicle, there may be other function-specific wiring harnesses, such as airbag wiring harnesses, audio wiring harnesses, navigation wiring harnesses, and so on.

These wiring harnesses usually consist of wires wrapped in insulating materials, which are connected to other electrical devices through connectors, terminals and other components. They not only carry the task of transmitting current and signals, but also bear the impact of vibration, high temperature, humidity and other harsh environments that may occur during the operation of the car. Therefore, automotive wiring harnesses need to have excellent electrical properties, mechanical properties and environmental resistance to ensure the safe, reliable and comfortable operation of the car.