Hello and welcome!
The other expert opted out, i will be happy to help you with your concern.
At the 4 wire connector at the back of the alternator.
Pin 1, black and yellow wire. This is the ignition on signal. Should be 12v with key in the on or run position.
Pin 2, White and Green wire. Alternator control signal (ALTC) This is the control circuit from the ECM. When the ELD senses the battery needs to be charged the ECM controls the alternator charging voltage on this wire.
Pin 3, White and blue wire. Charging system indicator circuit. When the voltage regulator grounds this wire, the charge indicator turns on in the dash.
Pin 4, White and Red wire. Is a field return to the ECM for idle up only. Example, if the Alternator demand is high, this puts more load on the engine. the ecm will adjust the engine idle to keep it running smoothly.
All you need to do to make the alternator perform like a conventional alternator is cut or remove the white and green wire Pin 2.
If you have any more questions please let me know.