Hi All, the passenger rear door does not lock with remote or with the internal locking switch on the drivers door. The electric window works and the red door light works. I have changed the door module as well but no joy. it was working fine 2 weeks ago and then just suddenly stopped. i cannot see any broken wires in the door joint either and continuity test say the wires are fine. any help will be appreciated. 

Can we assume you have tested the fuse?

Have you checked the mechanical parts of the door lock to ensure they are not jammed?

Central locking solenoid is built into the lock mechanism and is a common failing , if it’s not totally failed you might hear a slight rumbling from it but won’t have the power to engage the lock.