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What does the red battery light mean when it comes on when i turn on the ignition?
Wiki User
∙ 16y ago
That light is a warning light for the battery charging circuit. In order for you to know that the light is not burned out, your vehicle manufacturer installed a test circuit which turns the light on when the ignition switch is turned on when the engine is not running, and turns it off when the vehicle starts and the engine is running, and the alternator is creating more electricity than the vehicle's circuits is using. If there should be a failure of the alternator, or it's circuit, or the output is below the current being used by the vehicles circuits, then the red warning light should come on. If there is adequate electrical output from the alternator it should stay off, EXCEPT for the bulb/circuit "proof test" when the ignition key is turned on while the engine is NOT running.j3h.
Wiki User
∙ 16y ago
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