Starter Solenoids & Relays

• A starter solenoid is a switch that creates a contact point between the battery and the starter.
• When the starter button is pressed, it energizes the coil, which pushes a contactor to complete the circuit. This transfers DC current from the battery to the starter
• Knowing how to test the solenoid on your offroad vehicle is an important step to troubleshooting starting problems on your machine
• In a lot of cases, ignition problems where potentially-faulty spark plugs, wires, and coils have been ruled out, the starter is often blamed as the culprit