[consultIII]

use a dvom set to amps as you want to measure current draw. You want a reading 50 milliamps or less after all the modules power down; which could take as long as 20min on some vehicles. Anything higher will drain the battery.

An inductive amp clamp is best as it won't wake up all the modules which is what will happen when you disconnect then reconnect the negative battery terminal.

using a dvom set to amps (make sure the red lead is in the amp terminal of your dvom), disconnect the negative battery terminal and connect the black lead of your dvom to the battery post and the red lead of the dvom to the negative battery cable terminal. Make sure everything is off as a key on or open door will draw enough to blow your meter fuse.

As you make the final connection all the modules will wake up and create a draw; this is normal. The modules should power down and go to sleep in maybe 5min. This is the reading you want.

Post your results and if needed will isolate where the draw is coming from