Well I've had this problem for some time now. luckily this isn't my dd but I still need to fix it as soon as possible. It seems like the battery drains in no time if the car isn't running. I'll have it running at night, leave it and by the next morning it won't have any charge. Not enough to turn over half a turn or even click.

I've tried the multimeter between battery post and terminal measuring amperage while removing fuses one by one looking for a drop in current draw method, but draw remained the same. It was cosistant from fuse to fuse, but over the time decreased from 1.35 amps when I started to 1.28 by the time I was done. Is 1.35 amps normal current draw with the engine off?

a couple of days ago I noticed that the door open switches/actuators were there (bought it as a shell). I though maybe that was the reason since I know some relays pull power when the switches are open. well, I replacend them yesterday and tried to start it again this morning...nothing.

BTW, battery is less than 2 months old. hold 12v just fine (car will start the next morning or next week as long as I leave the neg terminal off) and alternator was replaced a couple of months before that (~14v with motor running).

Are there any unfused circuits that I could check? Any other ideas

Cliffnotes:

Battery drains overnight.
checked everything I could think of
need ideas to fix

TIA

 

bump

 

I read your cliffnotes....

Did you try a different battery? Just as a test?

-Nick

 

yeah, new battery. two of them actually. reads 12v right after shutting the engine off but by the next morning it's dead.

 

The only thing that I could possibly think of is somewhere down the line, something inside the car is still running each and every time you turn the car off.

Good luck.

 

thanks

yeah, i'm sure thats the problem but i can't figure out what it is. or how to go about checking.

 

do you have any aftermarket guages or anything of that sort?

 

yep, thats why mine keeps dying, i have my tach wired up to constant 12v instead of switch.

 

no aftermarket gauges/tach. theres nothing plugged in the spade connectors on the underdash fusebox either.

 

bump

 

you know i'll be bumping this until i figure out the problem

 

aftermarket radio?

 

also, make sure the interior lights are not illuminated when you're checking for parasitic draw.

 

no radio at all

the light isn't hooked either. I was just thinking, I didnt check for a open hatch switch. is there even one there? if there is chances are it's missing that too

 

yes there is one.

 

thanks, i'll replace that next

 

If you turn it off, can you start the car right away?