N/s passenger door lock not working

Need to remove the door card and check the solenoid for the central locking is working. Maybe a linkage come of or electric connector...

Hi, have removed door card all wiring rods and cables look ok. no noise when i operate central locking with buttons or key in door. all other doors ok. door operates with inside & outside handles and locks and unlocks using the push pull button on door. should i just replace the solanoid lock assembly?

Really does sound as though it is a suspect solenoid failure...