This is a starter solenoid wiring diagram, illustrating how the components in a car's starting system connect. The starter solenoid is an electromagnet that engages the starter motor. When the ignition switch is turned, it sends a signal through the neutral safety switch and starter relay to the starter solenoid. This action closes the circuit, allowing a high current from the battery to flow to the starter motor, which cranks the engine. The cam sensor and ECU are also part of this system, moni