1999 Chevrolet Suburban 1500 Q&A

1999 Chevrolet Suburban 1500 Question: how can i fix the power door lock on my truck

i just got it a couple of days ago and so far i noticed the driver side power door lock dont wanna work not even the key wants to work so what can i do to fix it -
Answer 1
Previous owner probably didn't lock and unlock vehicle very much so, the lock mechanism and rods are probably "frozen". Need to pull interior door panel off. Then lubricate all components and see if that solves the issue. -
Answer 2
Sounds like the door lock actuator could be your problem. -
Answer 3
1 &2 could both be correct. pull door panel and insp -