2005 V70 Central locking Problem

[Rangemaster]

Hello there,

I was checking the fuses in the cargo area fuse box, in search of another problem and since removing each fuse to check it I have found that my Central Locking no longer works, either with the remote or the key. Sometimes it will lock and unlock both front doors but never the rears, the N/S rear door makes a clicking nose from the actuator until the drivers door is closed. I can manually lock and unlock the doors but the tailgate has been locked since I checked the fuses, so won't open at all.
I suspect/hope this will need recoding, or other software update.....
Has anyone else experienced this and what is the solution?
I live on the west side of York if anyone can recommend a helpful garage?
Thanks in advance!