The ECU not only triggers a code if the voltage reaches out of range but if the FIELD REPORT which is a measurement of the alternator rotor current disagrees with voltage by sending a "help-help-help my current has risen but the voltage has not" to the ECU also generates a fault code. Open loop limp home occurs, the ignition timing remains cemented, the air-fuel ratio enriches, top gear cannot be reached and life becomes miserable. Like all automobile design employees, the thick glasses and eat seaweed programmers have to justify their paycheck. The ride-sharing engineers do a dog and pony show for management and like the save one gallon of gasoline in ten thousand designers of expensive SMART ALTERNATOR PULLEYS that cause owners to spend twenty dollars in fuel taking the car back to the dealer for repairs. STUFF THOSE REPAIR BAYS! Meanwhile, those useless US government employees who monitor this **** collect 80K/yr in salary-benefits and produce exactly NOTHING.
Look up the word masochism.
This is the insanity that is bankrupting the country and its citizens.
A country that cannot manufacture its own high voltage transformers for powerlines*. That has to buy GERMAN MRI machines and CAT SCAN machines from GERMANY. I just came out of the hospital and yeah I turned around all of the equipment and none of it was made in the USA except the pacemaker adjustment "laptop" with the attached transmitter-receiver loop that is laid over the implanted device.
*98% are manufactured in Mexico.
Like India and China, the USA is primarily a service-oriented economy. Manufacturing very little, exporting raw materials via desk-bound executives. Don't believe it, start auditing everyone around you at work and your home. They do not manufacture squat. They sell, maintain, change out, or do the paperwork for it all. I have two masters degrees you know about the one, the 2nd is in business administration. Specifically forensic analysis.
My thesis was on Latin American economies. And our economy has changed to a degree of an utter reversal in 50 years. We are now more like Mexico and Nicaragua than the USA of old.
The idiots are running the zoo and the ticket takers are not about to reduce the entry fee.