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Bart_dood's Avatar
 
Join Date: Oct 2005
Location: Martinez, CA
Posts: 356
I got the electric window battery drain problem (I searched)

Hi Folks,

So my car has had problems with a draining battery; I checked the alternator and it is working fine. I replaced the battery with a new one and since then it has gone flat within a week of no use.

I searched the forum and found this is a common problem; my cars electric windows never switch off; they are supposed to via some kind of relay once the engine is switched off and the door is opened. Mine just keep working; this seems to be the cause of my drain. I've pulled the electric window fuse until I fix the problem.

My question is what is the most likely culprit for this? does the relay fail a lot or is it something inside the door? Where should I check first?

thanks!
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1999 R1100S SOLD
1988 Carrera 3.2
Old 10-19-2009, 12:16 PM
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eauboy's Avatar
 
Join Date: Nov 2007
Location: Bethesda, MD
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Door switches are a likely culprit and an easy fix. If your interior lights do not come on when you open the door, this throws suspicion on the door switches.

See this thread for helpful information:
My electric windows work without the key in the ignition
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Old 10-19-2009, 12:55 PM
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Join Date: Oct 2007
Location: Tucson, AZ
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I had a similar problem.

I listened carefully when connecting the battery and I could hear a relay clicking which I located behind the instrument cluster. I yanked the relay and battery drain prob was solved. However, everything electrical continues to work, as far as I know!!!

Until I read you post I had forgotten about it!
Old 10-20-2009, 10:32 AM
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Join Date: Oct 2005
Location: Martinez, CA
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Quote:
Originally Posted by aston@ultrasw.c View Post
I had a similar problem.

I listened carefully when connecting the battery and I could hear a relay clicking which I located behind the instrument cluster. I yanked the relay and battery drain prob was solved. However, everything electrical continues to work, as far as I know!!!

Until I read you post I had forgotten about it!

Behind instrument cluster? is that a pain to get to?
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1997 Boxster SOLD
1999 R1100S SOLD
1988 Carrera 3.2
Old 10-25-2009, 09:49 PM
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Quote:
Originally Posted by Bart_dood View Post
Behind instrument cluster? is that a pain to get to?
If you can, go in from the funk (front-trunk). I'm playing in that sandbox right now, working on my non-working side mirrors. You can even push the gauges out from behind to give more access.
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Old 10-26-2009, 06:10 AM
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Old 10-26-2009, 06:10 AM
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