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1999 Porsche 911 Question: my alarm is malfunctioning, often going off on its own-

 

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Visitor, Kennett Square, PA, May 11, 2011, 14:58

car has 145000 miles. recently alarm malfunctioning and emitting lite on dash not appearing at all.

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  • Answer #1

    May 11, 2011, 21:23
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     Master

    It could do this for many reason which requires an OE diagnostic computer, but I'd start by checking the battery with a good battery tester.
    This would be the first and cheapest test.

    Zee

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