Alternators
Car Batteries

What causes the battery light to come on when both the battery and alternator check out okay?

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2008-03-19 02:05:16
2008-03-19 02:05:16

The alternator may be putting out some amps, but the regulator inside is failed. The alternator is the first thing to replace when the battery lamp comes on in these vehicles. Also make sure the battery is not leaking acid. Remove the positive and negative cables from the battery and look for corrosion. If corrision is found, you'll need to replace the battery and also take the battery cable covers off to clean the contact pads down to bare metal. Make sure all corrosion is removed. Russtech67

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It's not charging the battery. Check the alternator.

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Check battery connections, check alternator out put. Exc.

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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.

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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.

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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.

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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.

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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. The alternator should have 2 connections.

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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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A few causes that will make the Battery Light come on are: 1. Faulty Battery 2. Loose Battery Connection 3. Battery is not Charging, ie. Faulty Alternator

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The battery light usually comes on if there is a charging system problem Either battery or alternator are the usual causes.

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It could be an alternator. Check with a mechanic if that is the issue.

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Sounds like battery/alternator problems. Check battery first, it's cheaper to replace.

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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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