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What does it mean when the battery light comes on in a 2003 Jeep Liberty Sport?
Wiki User
∙ 14y ago
Usually it means that the alternator quit working. It may also mean the vehicle is using more power than the alternator is producing, either by an electrical short or again, a bad or worn out alternator. The old school test is to start the vehicle and remove the positive battery cable and see if the engine dies. If it does not, turn on the headlights and see if the engine stays running. If if dies the alternator may need replacement. The other possibility, and I admit, the first remains as the most possible, is the ignition switch. I have had an issue with this one myself. The ignition switch is slightly more complicated to diagnose. This may be the issue if you have other lights coming on intermittantly. I'd try the alternator first, you may also have it tested at your local auto parts store, like Autozone, to see the actual current output of the unit against the factory specs. Check all the ground wires for clean and secure connection especially those between the engine and body.
Wiki User
∙ 14y ago
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