The side stand switch is a safety feature on a motorcycle that prevents the engine from starting or running while the side stand is down. Positioned on the side stand or its mounting bracket, the switch detects the stand’s position and sends a signal to the engine control unit (ECU) or ignition system. If the stand is not fully retracted, the switch inhibits engine start-up to avoid accidents, ensuring that the motorcycle is safely supported before it is started or put into gear. This switch helps enhance rider safety by preventing unintended movement or tipping over.