Unable to lock the passenger door.

[Homeoboxter]

Hi All,

I'm pretty sure someone has a quick solution for this annoying problem: I can't lock the right door. When I operate the left lock with the key (keyfob never worked) the central lock does not lock neither the right door lock nor the gas cap lid. These latter two things have been working until now, although they have started being finicky recently. Now it's out completely. Central lock switch on the dash does not work either: there's a clicking sound, but no locking, something seems preventing it, but what? Thanks for any input.