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battery drain

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Old March 30th, 2017, 7:02 PM
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Default battery drain

Battery goes dead in 2 days sitting.
It's pulling battery voltage,12.6 volts that's between ground cable and battery negative post.
I've done the pulling fuses 1 @ a time still didn't find.

Thanks in advance,

Tom
Old March 30th, 2017, 8:08 PM
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measure the amp draw between the negative battery cable and negative battery post. report back the draw after all the modules go to sleep.

eric the car guy has a good utube video on how to measure and locate parasitic draw.
Old March 31st, 2017, 10:39 AM
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0.4 amp 1st time
0.3 amp 2nd
0.3 amp 3rd
I opened door each time and it went up to 4.4 amps,then I let it set for a few minutes and then read my meter.

Thanks for the help!
Woody
Old April 1st, 2017, 8:08 AM
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what you are doing is measuring draw then turning on a load so of course it will show a draw.
opening the door will awaken the bcm as it turns on the interior lights. you need to test draw with all the modules asleep and the lights off.

you should be using this:
https://www.princessauto.com/en/deta...ch/A-p4210962e
connect it with all the power running through it. hook up your meter across it. after 15 minutes to allow all the modules to enter sleep mode, doors shut, keys out of ignition, open the switch to allow all current to run through the amp meter only.
Old April 1st, 2017, 9:19 AM
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Thank you for your help.
I checked the amp draw the way you said.
My battery is in the back so i closed all doors and waited for load to drop off.
I used the light on my fluke meter so i could see it through the glass.
I'm going to go to local auto parts and see if they have one of the battery disconnects.
Ibelieve that's the way to go for now.




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