The generator provides voltage to operate the vehicle's electrical system and to charge the Battery. A magnetic field is created when current flows through the Rotor windings. This field rotates as the Rotor is rotated by the engine, creating an AC voltage in the Stator windings. The AC voltage is then converted to a DC voltage by a rectifier bridge. This DC voltage is then supplied to the vehicle's electrical system at the Battery terminal.

The amount of output voltage is controlled by the current supplied to the Rotor. The Regulator in the Generator uses digital techniques to control the current supplied to the Rotor. The Rotor current is a series of electrical pulses supplied by the Regulator. When the Ignition Switch is first placed in the Run position, the pulse width is very narrow. This causes the Rotor to produce a weak magnetic field. This will produce a lower output voltage to the vehicle's electrical system. Once the engine is running, the Regulator monitors the output voltage through an internal wire and changes the pulse width accordingly.

The Regulator in the Generator also controls the BAT Indicator located in the Instrument Cluster. Voltage is applied to the Instrument Cluster when the Ignition Switch is either in the Run or Start position from the GAUGES fuse through the PNK (39) wire. When the Regulator monitors that either a voltage high or voltage low condition exists with the Engine running, a ground path to the BAT Indicator will be provided through the BRN (25) wire.