Thanks for the good info I will investigate further and confirm the voltages. It seems to me however that if the car responds with both lock and unlock by key, ie the rest of the locks lock and unlock. Therefor the system must see those changes of state. . So far I have been able to resolve all the quirky issues with this crossfire (my second one) with the help of the forum.
This one is a teaser. I will post if I find something worthy of posting.