electrical short? |
electrical short? |
Jan 29, 2013 - 1:45 PM |
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Enthusiast Joined Aug 26, '11 From ventura, ca Currently Offline Reputation: 10 (100%) |
heyy guys, i drive a 95 ST that has a new battery and alternator, new grounds as well as new ends on the battery cables. for some odd reason the battery died this morning (hasnt been driven in maybe a week). lights arent on or anything. what could be the cause??????
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Feb 1, 2013 - 2:26 PM |
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Enthusiast Joined Oct 29, '11 From Haltom City, Texas Currently Offline Reputation: 1 (100%) |
Lol its called parasitic battery drain.
To test for it- Remove the negative battery cable from the battery make sure everything is turned off and the doors are shut. You do not want to open the doors or turn the ignition on during this test, the fuse in your multimeter will only handle 3-10amps of current. Use a hose clamp, tape or your spare hand to secure the negetive probe of your multimeter to the negative terminal of the battery. Set your multimeter to measure milliamps in DC(the dotted line not the wavy one). Connect the positive probe of the multimeter to the negative battery cable/clamp to complete the car's circuit. You can usually wedge it into a crevice on the clamp. The normal reading shouldn't be much more than 10milliamps, .01 amps. You can remove the fuses 1 at a time until you find the one that is pulling the majority of the amperage. This is your problem circuit, its normal for the ECU, clock, stereo and amplifyers to draw a slight amount when powered down. Be wary of opening the doors to check the interior fusebox, you don't want to exceed the fuse rating on the multimeter. Good luck and be sure to post your results or any questions. |
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