[VetteVet]

Originally Posted by vince1

https://alternatorparts.com/cs130-sbpage1.html

I think I found an answer in that this alternator has an additional function to turn the light on if there is something not right with the voltage.

If it was a P L I S connector I would agree but other wise there is maybe a bad diode in the alternator diode trio or the alternator rectifier diodes are bad and the alternator is not putting out enough voltage to turn the light off.

Is the light always on when the key is on or does it come on and go off?