If the voltage regulator is defective then yes that will turn off the charging system light when you install a new one. Most voltage regulators are built into the alternator on modern cars so you have to replace the alternator. Have your charging system tested at any auto parts store. Most will do it for free.
The voltage regulator is attachd to the alternator. It bolts on the alternator itself. If you ever replace the alternator, dont make the same mistake I did and not remove the voltage regulator because they are not sold as a whole unit..
The voltage regulator for the alternator is in the computer. If the voltage regulator in the computer does not work, you can add an external voltage regulator and then your battery will charge normally. Make sure to check the ground on the computer. If the ground is bad on the computer, then the computer will not regulate the voltage to the alternator properly.
A bad voltage regulator in the alternator. Depending on year make and model it may be outside or separate from the alternator.
The vehicle should ave a voltage regulator. If the battery and alternator are good then the regulator is most likely bad.
To get to an internal voltage regulator first disconnect the battery ground ( negative cable ) then remove the alternator. Make sure you mark the cables on the alternator so you can put them back exactly where they are supposed to go. The voltage regulator is inside the alternator and you will have to take it apart. I'm not sure how the regulator is mounted in your alternator, it might have small studs with nuts on them, or small screws or bolts, or it may be soldered in. In the latter case you will have to cut out the voltage regulator and solder in the new one. If you are going to take out the alternator anyway you should probably take it to a parts store where they will test it for free and tell you if you need a whole new alternator or just the voltage regulator.
On a 1992 Nissan D21 Hardbody, the voltage regulator is typically integrated into the alternator assembly. To access it, you'll need to remove the alternator from the engine bay. Once the alternator is out, you can find the voltage regulator attached to it. Make sure to follow proper safety procedures when working with electrical components.
On a 1988 Toyota Cressida, the voltage regulator is typically integrated into the alternator. To access it, you would need to remove the alternator from the engine bay. Once the alternator is removed, the voltage regulator can be found on the back of the unit. Make sure to disconnect the battery before attempting any repairs to avoid electrical mishaps.
What make? What year? If it's a carbureted engine, the voltage regulator is likely integrated into the alternator (some are serviceable, some are not). If the engine is fuel injected, the engine's computer usually serves as the voltage regulator.
Use a tester to see if the charging system is working properly. If your model has a separate regulator make sure it is working properly. Make sure that your battery is ok, a battery with an internal short can cause the charging light to stay on. The engine computer is the voltage regulator.
Usually the voltage regulator is the problem. Its located inside the alternator. More testing is needed to make sure that the regulator is the fault. If you want to guess. Replace the alternator. Sounds to me like the power steering and alternator belt has fallen off.
Either a bad ground to the guage itself or a bad voltage regulator in the alternator. While the enigine is running check the voltage at the battery it should be around 13.5volts if it constantly fluctuates then the voltage regulator is probably bad. Replace the alternator. Otherwise make sure your grounds are good.
Depends on the alternator,,, what is it on,?? I can't believe the people that don't state make, model, year and engine size before posting a question.