The shop working on my vehicle tested the electrical system and found the following items causing excessive electrical draw within my vehicle: front and rear SAM computers and the engine A/C electric suction fan control unit.
The following codes were received during diagnostics:
P2039 M16/7 circ air flap act. Adaptation
P203A M16/7 circ air flap act. Diagnosis
P2031 O2 sensor upstream TWC
P203B G3/L O2 sensor downstream TWC
P201B Misfire cyl 3 TWC damaging, Fuel defic.
P201B Misfire cyl 2 TWC damaging, Fuel defic.

After staring, engine erased codes; however, P2039 and P203A remained (O2 codes).
I think this is due to the additional fuel injection management system installed.

Additionally, the tech writes:
Checked draw, found broken fuse block in engine compartment (right side, above battery). R+R/replaced fuse block. After new installed new fuse block, still draw present. R+R front SAM and front fuse box. Checked aftermarket wires, NPE. Disconnected front SAM, still drawing. Pulled all fuses & relays at rear SAM, still drawing. Disconnected rear SAM, no change but trunk light is fed by rear SAM. Maybe onboard computer buttons powered by rear SAM.

I declined replacing the rear SAM, since the current draw was not isolated to the rear SAM. I don’t want to pay $200 to regain back my trunk lamp.

I do have access to purchase the SAM’s used. However, I don't know where these components are in my vehicle or where they are located in a 2004 that’s a salvage.

I need pictures showing me where these SAM’s are. The salvage owner writes, "You have to tell me what SAMS unit is?

Lastly, what about this AC thing? Mine works ok, however, they may be internal short?