Car Batteries

Why would the alternator stop working and the battery indicator turn on in a 2001 Mazda Protege when the brakes are used?


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2004-11-19 09:28:08
2004-11-19 09:28:08

Clean both ends of both battery cables and make SURE there is a good ground cable between the engine and body. If this fails, take it to auto zone and have them check the alternator output.


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the common cause why the light is on is that your alternator is not working well,try to have your alternator checked .may be the carbon brush is already worn out.

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No. If the alternator is working fine, the battery power is not used.

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Charging system is not working properly. Have the alternator tested at any auto parts store for free.

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needs a coil or distributor it could also be that the alternator isn't working and the car may be draining the battery every time you drive it

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It depends on what kind of car you are working on, but it sounds like it can be an external voltage regulator, or even a fuse Some vehicles do not charge with out a rpm signal. The cause of the tach not working may also fix the alternator.

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