What would cause the Power door lock mechanism (remot keyless as well) to stop functioning as well as the automatic light on/off with open door and engine off function?

It's not the door switch.

The car runs fine except for a dead battery as a result of this other issue.
I also couldn't find the fuse /relay for the power door locks. Though the keyless relay I DID find.

Thanks in Advance!

 

Did you check all your fuses, under your hood on both sides, under your steering column by the door? Sounds like a fuse to me from what you've written. Doesn everything else electrical work, interior lights, stereo, clock, gauges, etc.?

 

its a fuse...check them all

 

yeah it wasn't a fuse, as it turns out it was some sort of result from the battery dying. i replaced it because it's 7 friggin years old and then it all worked fine. Weird stuff, i couldn't lock/unlock the doors at al, remote or door switch, and the headlights only turned off by the switch. Strange electronics in this car