Battery light changed alternator and battery still have the light

I see you have changed the alternator but have you checked the alternator is now charging the battery?

Hi the air bag light can come on as a result of low voltage. Get it plugged into diagnostics that code should clear. Then test the charge rate it should be 13.5-14volts. Regards Jim...

The battery light doesn't only monitor battery condition; it actually monitors charging circuit condition, therefore Your alternator may be bad; one option is to find an auto part that performs free battery/alternator circuit test with car running (autozone does these in my area); another method is to remove alternator and have it bench tested (also done free at some auto parts).

Brother Mark, changing the battery with a new one being done won't make the light go out, as you noticed. Light is still on so you changed the alternator. Good, but the battery light is STILL on. This only means that the charging circuit from the alternator is not working in the voltage regulator or the wiring is not connected properly to the alternator/regulator. A new battery will show over 13 to 13.5 volts not connected. An old battery will still show 12 volts and still be weak or bad. After connected and engine running, the system will show at least 14 volts because alternator/regulator is working properly, using a voltmeter/load tester connected to the battery. If after replacing the battery and alternator it is still reading 12 to 13.5 volts, it is not working and the light will stay lit on the dash. You may have purchased a faulty alternator if the system tests out this way. Have your system checked with a volt meter or load tester bit be sure all the connections are proper and clean.

Check your manual for what the battery light indicates. It is just a general light for the electrical....not always the battery.

The battery light is on to warn the driver that the alternator is not charging the battery. If the light is still on you need to check the output of the alternator. It may still not be charging the battery.

check the wire from alternator to the battery and make sure its not loose on alternator. happened to me a few years ago, forgot to tighten wire to alternator. car lights on dash came on and car quit while driving. just make sure you are getting at least 14 volts at battery while its running, good-day !

Break light is no joke have the brake system checked for internal and external leaks . If none are found then itspossibly the brake hand / foot switch.

Battery lite could be incorrect battery or alternator is defective or the wiring behind alternator is corroded and lastly voltage regulator may be defective.

did you change the battery too? If your alternator had been going out, your battery may have been damaged. Have it tested.

Hi,I am Ron,Look at the alternator out put voltage,and have the battery load tested.Also check bad connection from battery to alternator(this is the large wire/cable).alternator turns the battery light on,why?You need to figure out witch one.A diode could be going out in the alternator,diodes change ac voltage to dc voltage ,that`s why the call it a alternator(alternating current)AC voltage means alternating current. If it goes unrepaired it can ruin battery,changing battery voltage from 12 volts dc to 12 volts ac.Also there is a built in voltage regulator that holds voltage down to about 14 volts charging while car is running.Voltage regulators can cut off charging completley or open wide allowing alternator to charge as much as 18 volts dc,ruining battery(boiling battery acid out of battery)and ruining alternator by burning fields and rectifiers out.So have it checked or do it your self.Auto parts stores can check alternator and battery.If I can be of more help,please [email protected]