Stop in for a cup of coffee

Tooljunkie said

Found no significant draw in the Avalanche. 0.2 amp, not enough to take a battery down in 4 hours. Unless its a constant thing, its hard to find. I have a feeling it will go away as weather warms up. But, the ecm was warmer than surrounding components, using my flir camera. Im baffled. Time to move on to less important things.

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Once the modules power down the only thing that should draw are the clock and radio anti theft I would think. That's a head scratcher. Like you said, .2 should take a battery down in 4 hours. Bad cell? Do you have a electronic battery tester or a carbon pile tester. I like the old carbon pile testers, load them up good and watch the cells for bubbles.