Alarm System Error Codes 1 & 60

[RobF]

Am working through clearing various Alarm error codes on my 2003 2.7 base 986.2 boxster.

A replacement window regulator, door handle microswitch and a new door lock have resolved the infamous Bleep Bleep problems, and now the central locking all works perfectly with just the appropriate side light flashes.

However I have the following error codes which I can clear easily with my Foxwell, but as soon as the car locking system is used they reappear.

Code 1 Door(s) secured and terminal 15 on
Code 60 Central locking position not reached

I understand these codes are "for information not repair purposes" but I would like to get them cleared permanently.

Any suggestions on where to start looking next please.