Starter solenoid Wiring Diagram Chevy | Free Wiring Diagram Variety of starter solenoid wiring diagram chevy. A wiring diagram is a simplified traditional photographic representation of an electric circuit. It shows the parts of the circuit as simplified shapes, and also the power and also signal connections between the gadgets.Author: Ricardolevinsmorales How Does an Ignition Key Switch & Solenoid Work? | It The ignition switch, usually located on the steering column, has a "hot" wire (or a direct connection to the battery), which routes current to the starter solenoid. The starter solenoid can be located inside or adjacent to the starter motor. Sometimes there is a starter relay that opens this circuit and is activated by the ignition switch.