Battery discharges over night. I have checked all the fuses in the engine compartment and I am getting a drain on the following fuses, 20amp Stop Lamps, 40amp Headlamps, 40amp Park Lamps & 30amp PCM/ASD fuses. Where do you suggest I go from here?

OnStar doesn't have a named fuse. The Radio and Infotainment System are two separate fuses. You need a good auto-electrician to find the source of the parasitic draw, not find a way around it. You can test it yourself. Put an ammeter on the battery and pull one fuse at a time while someone observes the ammeter. Pulling one fuse will be the cause of the drain and show a drop in discharge. That is the circuit where the issue it. There is always a small amount of drain from the ECM, clock, security system etc.

https://fuse-box.info > gmc > gmc-acadia-2007-2016-f...
2011, 2012 - The underhood fuse block is located in the engine compartment, on the passenger side of the vehicle. The location of the fuses in the engine ...

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The fuses your looking for are in the battery junction box under the hood in the engine compartment ! F3 20 amp & F15 20amp !

2009 ford focus !

First step must be a thorough visual inspection of all the engine compartment cables. There is clearly a huge current drain causing the positive cable to smoke. If the inspection doesn't reveal any obvious problems as many circuits as possible must be isolated from each other and from the battery until the discharge has been eliminated and then reconnected one at a time until the guilty circuit is found.

I advise you not to begin the work assuming the discharge is connected to the engine management problem - coincidences do happen and the work can't progress far until the discharge has been fixed.

First step have the battery tested, a bad cell can cause a internal drain and kill the battery, if the batt is ok then check for interior lights like visors that stay on or interior light that come on by themselves at night due to defective door switches.

No relay in the wiring diagram. There is a 20amp hazard fuse and a 10amp vehicle stop fuse in the engine compartment fuse box.
If those fuses are good, and the brake light switch checks out ok, I would look at the turn signal switch next.

Are you check in the Power Distribution Box? this is located in the engine compartment.
The power distribution box contains high-current fuses that protect your vehicle's main electrical systems from overloads. Check the position 7, 20AMP (mini-fuse).

Get under the front bumper look strait up on the side of the battery there you will see two horns low/high. test voltage from battery at horn.

Keep us updated.

Fuse Box is next to the Battery in the engine compartment
the fuse # 24 to illuminate cluster
it's a 20amp fuse (color red)
(8w-13-40)

Let me know

1-20amp-pwr outlet frt. 2-10amp-rear fog lights(export only)
3-15 amp-horn 4-10amp-hedlt low beam rt
5-10amp-hedlt low beam lft 6-20amp-bodycontrolmodule/pwr dr locks 7-spare 8-spare 9-10amp- rt pk lt /rt tail lt/trailer tow lt/cluster
10-spare 11-15 amp-flasher 12-15 amp-stop lts
13-10amp-bodycontrolmodule/cmtc/cluster 14-spare
15-10amp-pdc fuel pmp & auto shutdownrelays/skis
16-20amp-pwr outlet rear 17-15amp-rear wiper 18-20amp-radio choke relay 19-20amp-frt fog lts/trailer tow stop and turn lts
20-20amp-sunroof 21-spare 22-10amp-wiperswitch/frt and rear washer 23-10amp-lft park lt/lft tail lt 24-10amp-pdc blower motor relay 25-10amp-heatseatswitch/hvac controlhead/trailor tow battery charge 26-10amp-hedlt highbeam rt 27-10amp-hedlt highbeam lft
28-spare 29-15amp-heated seat module 30-10amp-heated mirrors/rearwindowdefrosterindicator 31-20amp-cigarlighter
32-10amp-radio/frtdoorlockswitches/bodycontrolmodule
33-10amp-skis/diagnostic connector 34-15amp-cluster/courtesy lts/radio/bodycontrolmodule/maplights/cmtc/underhood lt/vanity lts
35-spare 36-10amp-ignition run/start-orc/lft and rt siacm
37-10amp-ignition run only-orc 38-10amp-abs module/brake shift interlock solenoid 39-10amp-rear window defroster relay/flasher/backup lts

Should be fuse #4 a 20amp (yellow in color) located in the IPM (integrated power module) on passenger side engine compartment. Black cover over IPM.

it could be a faulty battery or you have a constant drain on the battery, i.e alarm/ radio/central locking if installed any drain on the battery needs to be checked..