OK I must have pushed one too many buttons - I have a Viper 5002 alarm system, with a Field Disturbance Sensor and a Python 489P 2 way remote.
Lately, the alarm on the drivers side door, once the door is opened, only gives 5 warn away chirps and not the full siren. All the other doors work as designed. What is that? Also, the rmote used to let me know when the system had been triggered (it's a 2 way) - now nothing.
I figure someone out there must have a 2 way alarm system and had seen this before - I'm stumped and been searching the net to no avail.