The battery light in a 1984 BMW 318i typically indicates an issue with the charging system. This could be due to a faulty alternator, loose or corroded battery terminals, or a weak battery. It is important to have the system checked by a mechanic to determine the exact cause of the light coming on and to prevent potential breakdowns.
It is more than likely defective. Any auto parts store will check it for you for free.
Why would battery light come on then go off
The service engine light has to be reset with a scanner. Disconnecting the battery will not work. The light will come back on unless you make the necessary repairs.
Try disconnecting the battery for 10 minutes. May reset the light--if problem persists light will come back on
The Chrysler Cirrus did not come out until 1995. You reset the check engine light with a scan tool or by unhooking the battery. If you have not repaired the cause of the code the light will come back on.
If it is undercharging the battery yes, but if it is overcharging the battery no in most instances. If it fails completely the light will come on.
With a scan tool or by unhooking the battery. If the cause is not repaired, the light will come back on. See related questions for more info.
what causes the battery light to on a 2005 ford expedition to come on?
Battery
It could
why do most all my dash light come on and the one head light looking one blinks.. i do have about 14 volts coming from the alternator and the battery at all times.