just to add ..
On a 997 there are codeing options for comfort .. i cant remember off hand for a 996 though .. i dont think there are but a codeing check of the convertible roof cu is a good start if you have a 3 button key which doesn't work .
Reguards the button working with a hardtop on then it shouldn,t .. there is a switch failure there somewhere , i would have thought there will be problems with the hardtop removed and operateing the cab roof though .. warning message or not locking is what i would expect .
On a 997 there are codeing options for comfort .. i cant remember off hand for a 996 though .. i dont think there are but a codeing check of the convertible roof cu is a good start if you have a 3 button key which doesn't work .
Reguards the button working with a hardtop on then it shouldn,t .. there is a switch failure there somewhere , i would have thought there will be problems with the hardtop removed and operateing the cab roof though .. warning message or not locking is what i would expect .