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Some vehicles have an external voltage regulator which also controls the warning lamp circuit, some vehicles have a warning lamp relay and others may operate through a computor, all of which require a signal from the alternator. You either have a faulty regulator/relay/computor, A broken signal wire from alternator, alternator is incorrectly wired or a faulty/incorrect type of alternator

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โˆ™ 2007-08-29 09:55:32
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Q: How do you get the battery light to go off if you have a new alternator and a new battery?
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Related questions

Would alternator connectors cause a battery light to be on?

yes if one of the wires was getting an earth from the alternator cover or rubbing off the engine the battery light is really an alternator light warning you that the alternator is not charging the battery

Battery light on 94 Saturn won't turn off?

That is typically caused by a faulty alternator. Have the alternator tested; the light is indicating that the alternator is not providing a charge to the battery.

How do you get the battery light to go off on a 1983 Chevy Caprice when the alternator and battery are good?

triple diodes in alternator are bad

Engine staled while driving and the battery light came on then went off and then your check engine light is on would it be my alternator or battery that needs to be replaced?

your Alternator

Why would your battery light flicker on and off?

Possible alternator problem

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Can be loose or corroded battery connections, loose drive belt, or the alternator is failing.

Why do you have to jump off when the battery is new?

Possibly the alternator is defective and not recharging the battery. Or something is on, pulling power from the battery when the car is not running. Can be any light or any relay that is stuck.

Why wont your battery light go off when you changed your alternator and battery in your 99 mercury cougar?

Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery. You may also have a battery drain (something that is staying on and killing the battery)

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The alternator switches off

Where is the fusible link for 94 buick lesabre?

94 Buick Lesabre replaced battery and alternator and the alternator is not charging the battery. Battery light is on and off. Is this fusable link. If so where is it located

Battery light comes on and goes off while driving?

You possibly have a loose alternator belt or the alternator is weak. Check the voltage at the battery with the engine running. It should be 13.5 ? 16 volts. Any less and the alternator is weak and needs replacing. Also make sure the connections at the battery are clean and tight.

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If alternator and battery test fine- then you may have a bad fusable link not allowing the alternator to charge the battery

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the diodes in the alternator have gone

How do you repair a 1990 Ford Bronco if the battery goes dead within a week even when new?

Check your alternator, that would be the main problem i think because the alternator charges your battery when in use, and with a bad alternator, means that your car is runnin soley off the battery and does not recharge the battery. Look into getting a new alternator. try testing the alternator at a local auto parts store, another test you could do is start the vehicle , and while it is running take off the battery cables, if motor turns off immediatly then your answer is that you have a bad alternator

What causes the battery light to turn on above 2000 rpm and off below 2000 rpm when a new alternator and battery were installed on a Mercury Tracer two weeks prior?

The RPM change affecting the light seems to indicate that it's the alternator. Perhaps it has a bad voltage regulator? Maybe it's not the right alternator for your car?

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Alternator is sending to much volts to battery. Suppose to turn itself off when battery gets to around 13 volts. May need new alternator.

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usually means that the alternator is not charging. So the battery is being drained.

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more than the alternator diode is bad have the alternator checked

Why does battery light go off when accelerating?

Because your alternator starts to generate more power as you accelerate, as opposed to an engine at low speed or idle. The car reads this extra voltage from the alternator, which is trying to charge the battery, and tells the light to go off. This is not normal on a vehicle with an alternator. You need to have the alternator checked as it more than likely needs replacing.

Why would the battery light of a 1998 Ford Escort still flicker on and off after replacing the battery?

Clean both battery cables and check the connections on the alternator. If it continues, go to auto zone and have the alternator checked.

Why does the battery light go on and off in my 2002 Monte Carlo. Every time the battery light comes on the voltage drops. When the light goes out the voltage comes back. What could be wrong?

Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt.

How do you get the battery light to turn off on a 1998 Chevy Malibu?

When this light stays on, it is telling you the system is not charging. Possible bad alternator, battery, or loose or disconnected wire.