You need to first check your relays to make sure they are passing power, then check your switches to see if they are passing power, and if so, you will need to remove the interior panel on the door, (Some plastic clips and a couple screws/bolts located near the door opening lever should do it) Once this is removed, you’ll look to the bottom left corner and you’ll see a cylinder covered in black rubber. There is one rivet holding this to the car along the jamb, drill the rivet out and twist the lock motor gently off the hook attached to the actual locking mechanism. You will need to either re-rivet the new motor/solenoid into place, or use a small bolt/nut to hold it there. Reassemble.