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Old 04-24-2018, 01:06 PM   #1
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Join Date: Oct 2017
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Battery Check Light

Hey All,
Have a 2001 Boxster S that I just pulled out from storage.
Unfortunately when I replaced the battery, I put it in backwards and had a quick series of sparks, before realizing my mistake and reinstalling correctly. As a result, the rear fuse on my radio went (which I have replaced and it is now working) and I now have a battery check light. Otherwise the car is functioning normally (note: the windows, top are operating slowly I believe directly from the battery.)
To fix I removed and replaced the voltage regulator on the alternator as my searches for a remedy indicated. NO luck, no charge coming to the battery from a voltage meter reading and dash light still illuminated. I also checked the fuses in the foot panel and all are good.
What would be my next steps?
- Replace the alternator completely?
Is there a fuse/ relay that I have missed to check first?
Thanks in advance.

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Old 04-24-2018, 01:32 PM   #2
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You have one or more blown diodes in the alternator.
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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Old 04-24-2018, 01:57 PM   #3
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Take it to a store that does battery and alternator checking.


Last edited by particlewave; 04-24-2018 at 02:00 PM.
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