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Old Jul 27, 2009 | 02:03 PM
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Default charge system fault

Hi
I am getting the charge system fault display on occassion. The indicated voltage no longer goes up to 14.1 or 14.3 volts like it used to.
It starts at about 11.8 and goes up to 13.7 or 13.8 volts. Battery is never dead but voltage seems low when running. Any thoughts. thanks. Randy
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Old Jul 27, 2009 | 02:17 PM
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Bad diode in the regulator, pull the alternator and take to autozone for testing.
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Old Jul 27, 2009 | 02:32 PM
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As stated, it could be the alternator but it still could be a bad battery. How old is your battery and how frequently do you drive the car?

It can also be poor connections at your starter or battery or alternator. You need to check all grounds and connections.
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