Body electronics encompass the electrical and electronic components controlling vehicle body systems, typically located throughout the cabin, chassis, and exterior. These systems manage functions such as lighting, power windows/locks, remote keyless entry, and body control modules coordinating multiple features. Key technical features include CAN bus communication for data exchange, solid-state relays for switching loads, and increasingly sophisticated control algorithms for automated operation. Modern implementations often integrate features like anti-theft systems, automatic lighting controls, and rain sensors. Component failure often presents as intermittent operation or complete loss of function in the controlled system.