Mk2 octavia estate boot latch problem

Hi all 

sorry if this topic has been covered already but my boot no longer opens, I have checked it with vcds and the switch is operating ok but still no operation via output test, so I replaced the boot latch still no joy, so I tested the wireing between the latch and the comfort control module which tested fine, so I replaced the comfort control module re coded modual and it still doesn't work, please note everything else in the tailgate works fine. 

Any my help would be greatly appreciated 

the car car is a 2005 Octavia estate elagence mk2