What does check alternator mean?
What the alternator warning light means. When you start the engine, the car will check to make sure the alternator is outputting the correct voltage. When the light stays on, it indicates that the computer has detected an issue with the charging system.
Can you get your alternator checked?
Most service stations can test an alternator, but they will charge you for the labor. Many auto parts stores will test alternators, starters and batteries for free, though you will have to remove the alternator to have it tested at an auto parts store.
What’s the best way to test an alternator?
Tools for Testing an Alternator There are two tools that can be used to test an alternator. One is the battery and charging system tester while the other is the voltmeter. The battery and charging system charger can detect whether there is a problem with the charging system of a vehicle.
What should I do if my alternator is not charging?
The alternator normally lasts longer than the battery. There are some easy steps you can go through to check the function of your alternator. Tap the alternator carefully with a hammer while the engine is runnin; if the charging goes back to normal, the coals inside it are worn out.
What does it mean when alternator reading stays the same?
If the reading stays the same or drops, that means the alternator isn’t charging and you may need a new one. If the reading is more than 2 volts higher, that could mean that your alternator is overcharging. Either way, take your car to an auto repair shop to find out what’s wrong.
What happens if your alternator is over 14 volts?
Under that and the car installation and battery isn’t getting enough electric power. Over 14.5 volts can cause serious damage to the alternator and car battery. After taking the voltage output reading, remove the tester cables from the battery poles and remove the multimeter. Close the battery casing-holder.