A wiring harness is a collection of wires, connectors, and terminals that transmit electrical power and signals within a vehicle or machinery. It organizes and protects the electrical components, ensuring they function correctly and safely. Wiring harnesses are essential in various applications, including automobiles, aircraft, and industrial equipment. These harnesses are designed to simplify the installation process and reduce the risk of electrical failures. By grouping wires together, they minimize clutter and potential damage from vibrations or environmental factors. Properly designed wiring harnesses enhance reliability and efficiency in systems like automotive electronics and home appliances.