Hi everyone. I have a '13 Maxima with about 46K on the clock. Was garage kept its entire life until now, but has a ongoing parasitic draw that I can't seem to track down.
Father in-law replaced the battery 3 times in a year. He didn't drive it much so it would sit for weeks at a time. When we got it, I immediately put a new battery in and it crapped out in about 2 months.

Here's where things stand. With the car off, keys removed there's a continuous draw of about 130 milliamps (measured with my powerprobe draw). I've traced it to fuse #5 (see first pic). when I pull it, the draw drops to 30. This is the push engine start fuse. The part that has me puzzled is that I can't find the power source for this circuit.

I've disconnected the IPDM and this circuit still has power. Can anyone tell me where this fuse gets it's power from so I can figure this out. I though it might be the R2 relay, 2nd pic, but that's not the case. Thanks in advance.

 

that fuse gets power from fusible link c 100A. hot at all times. feeds start button, power locks, interior lights, anti theft, bcm.


the bcm is common.

 

Thanks @slvr2KSE5 , I'm assuming you mean the fusible link (triple 40) green at the top of this picture. I actually pulled that link and there is still power to the #5 fuse. Shouldn't the fuse lose power if I pull that.

For added context, the BCM has been removed and I've sent it off to get checked knowing they can potentially cause drain as well.

 

im looking at the wiring diagram. 100A fusible link c is supposed to be at the battery

 

Ok, so that's the thing attached to the positive terminal on the battery. Aside from being blown, which I don't think mine is, because the battery does charge when I'm driving and I don't have any strange electrical issues other then the draw, can those go bad?

 

yes. poor contact, corrosion, etc.


its definitely not your problem though

 

Thanks. I agree, doesn't seem like this would be the source of my problem.

I've got the dash apart from having pulled the BCM, will need to wait to see if that checks out or not and I'm also waiting on a replacement IPDM which I now don't think is the problem either.

 

thing is with the bcm out you can check again. if everything else is plugged in and the draw is gone the bcm is it.

 

Yeah, the bcm is out, but I also have the trim around the cluster removed so the start/stop button is disconnected. Should I connect that up and see if the draw goes away?

 

Quick update. BCM was sent off to a company who repairs the modules. They messaged me that there was an issue with the module which they repaired and are sending it back. I don't know exactly what problem was. Anyway, should be here later this week and I'll install and will provide an update if that corrects the problem. Fingers crossed.

 

When I removed the instrument cluster to pull the bcm I didn't take note of this connection. Now putting everything back together I can't find a corresponding plug on my harness, was it not there in the first place? Maybe I buried it under something. Seems like there should be a connector.