Power door lock not working

SOURCE: 1998 Jeep Cherokee Internal locks and power locks Not working.

Open the door panels and lube all of your lock mechanisms. They tend to get stuck and it harms the locking motor. After I lube mine up, they freely move. Just spray some lithium grease and manually lock and unlock the door with the rocker until it moves very easily. You'll probably have to do this once a year like I do.

SOURCE: Power lock on driver side door does not work on2003 Toyota Celica

remove the door panel and change the solenoid on the inside of the door

SOURCE: 2003 Volkswagen Jetta power door locks

take apart the panels and lube the locks.

SOURCE: 2009 Saturn Outlook radio removal

start by carefully prying the woodgrain/brushed aluminum panel around the column shift upwards. Start at the rear, near the cubby. be very careful not to break it where the panel wraps around the drivers side of the shift indicator. when it is removed, you will see screws holding the next panel on (may be 7mm hex or philips - can't remember...) once removed, you can pry that section off as well exposing the radio and climate control screws. both have to come out to get the radio out. the XM portion is not in this radio, but is actually in the rear end of the truck behind the side panel on the driver's side. Be careful if you go poking around in there, because you may have a power inverter back there feeding 115v power to the center console (entertainment package).

SOURCE: power windows and power locks wont work

Check your fuses first. Then check for power at the switches, and power from the switches to the respective solenoid and motor. Most likely it's fuses. Also check where the wiring runs through the door into the car for bare spots in the wiring that might have blown the fuses.