Have a similar problem, did you get it fixed? Key works from the outside, manual door lock works. Removing the panel shows the key cylinder rod works, manual rod works, but no movement/action when using the electric lock from either side. Electric lock on passenger side and driver's side will work the driver lock. The manual rod tries to lock (slight movement) when using the electric lock, but I do not see anything blocking the manual lock rod from moving and locking the door.
If it is the actuator - how does one replace it?