Hi - bit peculiar. Thought I had replied but don't see it in the thread. Anyway - yes, the low numbers with this key may be a problem
So, OK, the switch does activate the CDL - locking and unlocking the doors. The door buttons go up and down perfectly (embarrassed to say I never knew there was such a switch - even though I have actually had the console out to refit the hazard warning switch).
However, after locking and unlocking a couple of times from inside the car, I still cannot lock the car from the outside using the top button on the fob as it just sets off the alarm as per previous posts - three "beeps and light flashes".
Am I any nearer now?