Question about 1999 Saturn SL
and charging subsystem consists of a battery and a generator with a built in
regulator and integral fluid intrusion shield. The system also includes the
Powertrain Control Module (PCM ) software to increase idle speed during
low voltage conditions. The battery supplies current to the starter to crank the
engine during starting. After the engine starts, the charging system recharges
the battery and supplies power to various electrical devices in the vehicle. The
PCM monitors battery voltage and will increase idle speed if battery voltage
drops below a calibrated
With that said Batteries usually last three years so if yours is older then that then it could be time, also a weak charging system will kill a battery really fast. I recommend that you take the battery to local Napa or Autozone and have the battery tested if it comes back no good replace then after you get it running take to car somewhere to confirm your charging system is in proper running order usually some parts stores can test that also.
Hope this helps
Posted on Nov 13, 2010
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Posted on Jan 02, 2017
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