Posted by Inno on December 05, 2012 at 12:33:49 from (206.172.0.204):
In Reply to: truck eletric drain posted by OLarry from MD on December 05, 2012 at 09:13:53:
Not if it's a high resistance short, something like a corroded wire or plug or a wire with a cracked insulating jacket that's wet and some current is "seeping" to ground.
I was going to suggest trailer or tail light wiring but there should be no current flow with the lights turned off.
The other thing you can do instead of putting the ammeter between the batt and the cable is pull the fuse in question and put the probes of the meter across the fuse contacts. That will tell you if that's your source of drain. Who knows, it could be more than one source. Many vehicles, especially the newer ones have some drain on them even when turned off.
Oh, and if you are measuring 2volts between the batt and the cable then whatever is causing the drain is soaking up 10 of the volts of your 12 volt battery and you are measuring the remaining 2.
This post was edited by Inno at 12:36:15 12/05/12.
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