The field winding carbon brush may have worn down and need replacing. The unit can be tested by spinning the pulley and applying +12 volts to the field winding if the pulley now resists turning it is generating electricity. The diode pack may need replacement but they are pretty robust these days, That leave the electronic charging control box to check. Look up costs of individual replacemnts and compare to an exchange unit, Your last option is to get one from an auto salvage dealer.
Your car should produce about 14.4 volts from the alternator when the engine is running. If it does not produce anything over 12 volts, your alternator is not charging and you need to get it repaired or replaced.
how to fix broken concrete drive way be repaired or does it have to be replaced?
LORA is a company that determines if an item should be replaced, discarded, or repaired. This is determined if the item is cheaper to be repaired or replaced.
Bumpers that are dented, bent or scraped are not repaired; they are replaced. If the connecting brackets are loose or damaged, they can be replaced or repaired to secure the bumper, but the bumper itself is not repaired.
The regulator is in the engine computer not the alternator.
That would depend on what the problem is and if they can be repaired or have to be replaced. If they can be repaired it can be as little as $20 per side or up to $300 if everything has to be replaced.
Is the alternator actually working. It is possible to buy a new alternator that is defective.
The curtain was a physical curtain. And was replaced or repaired.
No, they are replaced when faulty.
The computer only resets when the battery is removed. The alternator just charges the battery, so if the battery is left connected when the alternator is replaced, the computer should not reset.
Field Replaceable Units
Because most of the time its cheaper to get a new one that to get it repaired.