dusimi

hi, I am dealing with a problem with an audi a4 b6 1.9 tdi avb - after leaving an unlocked vehicle it locks within a minute and then re-locks approx every minute (even though it is already locked) this happens until the battery dies... no error codes, all micro switches the locks are fine, all the values in the live data are fine, there is no water or corrosion in the ccm box.. the battery discharge when I leave the vehicle is approx. 0.7A, after a minute this consumption drops to 0.05A and at that moment immediately The CCM will send a signal to lock and this cycles until the battery dies..has anyone had a similar problem? Thank you