Yes, DVOM in series between disconnected neg cable and battery. Meter is a FLUKE auto ranging.

Tomorrow I am going to perform a voltage drop across each fuse to see if that tells me anything.

I appreciate everyone's suggestions thus far! Hopefully I can get this thing licked.

 

Try disconnecting the positive cable connection at the underhood fuse box main terminal. Check for the drain again.
If no drain, then a least it will be narrowed down to "forward" of that point.
Still a drain then search "back".

Just trying to help narrow the search area.

 

Good point FMG!!!!! :)

 

GREAT IDEA!!!! Will do and report back!

 

If you have internal battery plates that are shorted, your battery can drain itself. On my motor home, I have four house batteries, one was apparently intermittently shorted across the plates, and it showed about a 5 amp draw, and drained the other three batteries. New batteries fixed that problem, but it was not an inexpensive fix.

 

so you are saying that the battery itself can show/cause a draw when measured with a meter in series?

 

Okay, pulled 2 door switches and disconnected them to simulate doors closed for BCM. closed rear hatch as well.

then, I disconnected the positive cable connection at the underhood fuse box main terminal....Still a draw.

Below are pics of my meter and how I have it connected in series. (pay no attention to the alligator clamps as it is just used to hold the probe.

Am I losing my mind here??? If i put a test light in series, you could land a plane!

 

Can't see the picture of the meter well enough, but my suspicion is the "auto ranging" is on milliamps and you are not reading amps at all. I am unfamiliar with your meter, but the leads for measuring amps usually use a different plug in on the meter. Have you replaced the battery of the meter recently? I get strange things on my meters when the battery is low. However, that may not be it so see below.


There is a 50 AMP fuse at the battery for the BCM, which you say you have removed. There are two what look like battery connections at the under-hood fuse box. One is the feed from the battery and the other is the connection to the power steering motor. Do you have the proper cable disconnected from the Fuse Box? The proper cable to disconnect from the Fuse Box is the one on the passenger front, the cable that is on the passenger rear of the Fuse box is the Power steering cable.

Now if all the above is done correctly there are two other likely possibilities; the starter and the generator, each is directly connected without fuses to the positive lead from the battery. Disconnect them and see if your draw goes away.

When you disconnect the proper battery connection from the fuse box keep the two ring terminals separated and I believe this will disconnect the starter and generator from the battery positive lead.

Above all the pictures need to be resized. Where did you load them? I don't see them in your gallery? The gallery is accessed by clicking on the "camera" image below your name. I'm not one to ask how to load pictures on this forum as each time I do it I have to refigure it out.

 

X2 on resizing the pics. I tried to enlarge them but it was too fuzzy to read the meter settings.

 

I did not know I could load them into a gallery on this site. I did that and changed the pics in the post. They can also be accessed on my profile.

I appreciate everyone's help! I am headed out of town tomorrow for a week (work calls) so I will have to report back once I get back in town. Thanks!