Starter Solenoid: Operation
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, 2002 Chrysler 300M, and 2001 Dodge Intrepid. However, it is still accessible from the selected car via links, so may be relevant.
The Starter Solenoid is a switching device used to activate the high amperage starter motor circuit from a low amperage control circuit.