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Anonymous Posted on Jul 23, 2010

What does service electrical system mean on a 2002 Cadillac Deville

  • Anonymous Nov 01, 2012

    I had changed alternator out on it just yesterday. Says battery is not charging Service electrical system. I put battery on a charger and volts are fine its an older battery? Could it be the battery not taking a charge from alternator?

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Anonymous

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  • Master 7,353 Answers
  • Posted on Jul 24, 2010
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It could mean there is a light bulb out. or check the alt/ battery

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What does it mean when the service charging system light comes on?

Your charging system has failed or is beginning to fail. Most likely it is your alternator beginning to act up. It could also be a battery that has a bad cell and the computer is seeing a much higher charge rate than normal. Most charging systems are controlled by the engine ECM today so the output is monitored all the time. You will need to have a complete electrical system diagnostic to locate the reason including having the codes retrieved from the ECM if any.

I’m happy to help further over the phone at https://www.6ya.com/expert/david_c087e4b7d13c0163

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Usually the warning means the alternator is not charging the battery.
Have you had the system tested ?
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You have a fault detected in your vehicle alarm system.
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