HELP My n/s passenger door wont lock with central locking ,unlocks ok ,

[hotirons]

HELP PLEASE !
My n/s passenger door wont lock with central locking ,unlocks works fine,
locks fine manually ,
all 3 other doors work fine ,
its not the lock as i swapped it , it seems as if there is no feed to the unlock side on the lock
help please ,,,

[Daox]

What do you mean you swapped the lock? Are you talking about the electronic actuator?

[hotirons]

Yes i swap the complete catch , but still the same i put a multi metre on found no power when the lock function is pressed ..