Classification of main automotive wire harnesses:
Main Wire Harness - Distributed across the chassis, engine compartment, and a small portion inside the cabin.
The main wire harness can be further divided into smaller wire harnesses, including: Left front door wire harness, right front door wire harness, rear door wire harness, roof harness, rear hatch door wire harness (trunk wire harness), antenna wire harness, front bumper wire harness, rear bumper wire harness, positive cable, and negative cable.
Cabin Wire Harness (Body Wire Harness) - Mainly located inside the cabin.
Instrument Wire Harness - Located within the instrument panel.
Engine Wire Harness - Located on the engine.
6 Common Types of Automotive Wire Harnesses and Their Functions:
Engine Wire Harness: A collection of wires connecting various engine components and systems, responsible for transmitting power and signals to connect the engine control unit, sensors, actuators, etc.
Body Wire Harness: A wire harness affecting various body devices and systems, responsible for transmitting power and signals to connect the car lights, dashboard, air conditioning system, sound system, etc.
Instrument Wire Harness: A collection of wires connecting the instrument panel and the driver's control panel, responsible for transmitting signals for various indicators, instruments, and control functions on the instrument panel.
Lighting Wire Harness: A collection of wires connecting the vehicle's lighting system, responsible for transmitting power and signals to connect the front headlights, tail lights, turn signals, etc.
Front and Rear Windshield Wire Harness: A wire harness for the electronic devices and sensors on the front and rear windshields, responsible for transmitting power and signals to devices like windshield wipers, rain sensors, etc.
Seat Wire Harness: A collection of wires connecting electronic devices and sensors in the seats, responsible for transmitting power and signals to functions like seat heating, ventilation, and massage.
