What is the starter solonoid?

The starter solenoid is an electromechanical device that acts as a switch to engage the starter motor in a vehicle's ignition system. When the ignition key is turned, electrical current flows to the solenoid, causing it to close a circuit that allows high voltage from the battery to power the starter motor. This action initiates the engine's cranking process. Essentially, the solenoid plays a crucial role in converting low-voltage electrical signals into the higher power needed to start the engine.