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Old 05-07-2008, 12:05 AM   #2 (permalink)
robchaos19
Robusto

 
Join Date: Jul 2004
Location: Maryland
Trader Rating: 75 (100%)

Leave the car off, remove the negative battery cable, and attach a Ammeter in between the neg cable and the negative battery terminal. That will show you how many milliamps (or amps) are being drawn. Start pulling fuses untill the parasitic draw drops. That circuit will be your problem.

Just FYI, an alternator with bad diodes can draw electricity. I had that issue when I first bought My NX, battery kept dying.
To check that either disconnect the alternator cable to see if the draw drops, or you can hook up a voltmeter set to AC Voltage across the battery terminals with the car running, and if the voltmeter reads AC voltage that means the alternator diodes could be bad
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