oddwraith

iTrader: (1)

I'm getting a slow battery drain that occurs over about two days time on an intermittent basis. It doesn't always drain, but when it does it's only good to last for about a day or two. The battery has been replaced twice, new alternator (twice), new battery connectors (post connectors) and cleaned all grounds. I have had it tested before for parasitic draw with no luck finding anything substantial (don't forget though it is an intermittent problem it seems). Could a chip/module be staying on once in awhile causing battery rundown? What would be a likely cause, alarm (factory)?

Thanks guys.

Muscle Freak

well obviously something is stayin on or grounding out...check all cargo/interior lights, glove box lights etc...first. then start checking things like the clock on the radio, instrument panel lights being on or some stujpid stuff like that. other than that, i cant think of anything...grab a multimeter, start checking grounds on sensors and electrical parts, you might find something.

oddwraith

iTrader: (1)

Doing it today, thanks man. That's my first step I suppose is to look for lights staying on.

oddwraith

iTrader: (1)

Couldn't find anything. I notice that when I lock the car by manually locking the doors I get "0" battery drain! That is to say, when I don't use the keyless entry or the power door locks it's fine. I think somehow either the alarm or door lock actuator may be faulty? Anyone heard of this? They both pass through the bcm I believe (body control module). Also I think the trunk release may run through there and I noticed water in my trunk the other day. Of course, just to make it more complicated I don't know if my trunk was left open, popping itself open, or nothing to do with my power drain at all.

If all this sounds jumbled and confusing, it probably is

91RS383

BCM issue perhaps?

BCM fix