My driver's door will neither lock nor unlock with key remote buttons or the power/electronic lock switch (on the inside of the door). I can unlock or lock the driver's door with the key (old school, shiny silver part that slides into the lock cylinder) or manual/mechanical lock tab (on the inside of the door). After manually locking/unlocking the driver's door the remote and electronic switch will work for the other doors. This problem is similar to the more common problem with the actuator switch for the rear slider doors (one of which I also need to fix).
Does this indeed sound like I need to replace the front left door lock actuator?
What is the part number for this? I can not find it at onlinemazda.com (Montgomery Mazda).