When the ignition switch is moved to the START position (and the theft deterrent module recognizes the key code), the battery voltage is applied to the starter solenoid (through the theft deterrent relay). Both of the solenoid windings are energized. The circuit through the pull-in winding is completed to the ground through the starter motor. The windings work together magnetically to pull in and hold in the plunger, which moves the shift lever. this action causes the starter drive assembly to rotate as it engages with the flywheel ring gear on the engine. At the same time, the plunger closes the solenoid switch contacts in the starter solenoid. The full battery voltage is applied in the starter solenoid. The full battery voltage is applied directly to the starter motor, which cranks the engine.

When the solenoid switch contacts close, the voltage is no longer applied through the pull-in winding, as the battery voltage is applied to both ends of the windings. The hold-in winding remains energized, and its magnetic field is strong enough to hold the plunger, the shift lever, the drive assembly, and the solenoid switch contacts in place in order to continue cranking the engine.

When the ignition switch is released from the START position, the battery voltage is removed from the circuit 6 wire and the junction of the two windings. The voltage is applied from the motor contacts through both windings to the ground at the end of the hold-in winding. However, the voltage applied to the pull-in winding opposes the voltage which was applied when the winding was first energized. The magnetic fields of the pull-in and the hold-in windings now oppose one another. The return spring causes the drive assembly to disengage and the solenoid switch contacts to open simultaneously. As soon as the contacts open, the starter circuit is turned off.