Clio MK3 - Central Locking Fault

[Cal H]

I recently bought a Clio MK3 and later found the Central locking on the rear doors to not be working.

So far I have replaced UCH and recoded, as well as replaced the locks in the doors.

I have also replaced the fuse in the driver's side fuse box. Nothing has worked.

What would you suggest would be the next possible issue?

 

[K clio]

I know your post is a while ago and for anyone else with similar) but did you check the child lock isn't set on. On my mk2 it is set with the key inside the passenger door. I have a different problem which I'm just about to post.

 

[K clio]

Got confused with airbag switch.
Child lock is a little sliding switch just above each door lock.