My battery died a week ago because I left the interior lights on. Now my car is back running but the stereo is asking for code. How can I get this without paying an arm and a leg?
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Just a couple problems I've had. dome light left on due to faulty door open switch, spot light charger or equipment left plugged or wired to battery, lately I thought I had a bad battery but I just need to clean the terminal connections. One more thing if your car is running you can pull the negative cable off the battery. If the car dies your alternator could be the problem. If you have a light in the trunk or under the hood you could pull the bulb out to make sure you don't have a faulty switch turning them on. These are kind of simple and that is the way I start out.
Have the charging system checked,Battery voltage(car not running) should be 12 volts,or less if battery is not fully charged.With engine running voltage should be close to 14 volts. use a dc volt meter and connect to positive and negative battery post.
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 !
The alternator has failed if the the alt is good typically the vehicle will stay running even if the battery is bad. Have the electrical system tested because a bad battery can cause the alternator to fail.
(1) Is your alternator charging? take your vehicle to Advanced Autos, Napa or someone like that and have them test your alternator. (2) Is there something in the vehicle causing excessive drain on the battery when the motor is not running... like is the interior light may be on or something to that affect. (3) Are you doing enough driving to recharge your battery? short stops and starts is not good for a battery as you may rob more energy from the battery then you are putting back in. Sounds like something is draining your battery, something must be left on in the vehicle, Advanced Autos or Napa should be able to tell if something is draining your battery when the vehicle is off.
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