Section 147 (Starting System (Service Information)): Operation: Operation
WARNING: This page is about a different car, the 2012 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.
These components form two separate circuits. A high amperage circuit that feeds the starter motor up to 300+ amps, and a control circuit that operates on less than 20 amps.
The PCM controls a double start over-ride safety that does not allow the starter to be engaged if the engine is already running.