Car Alarms: Trouble w Python 1500 esp alarm, gmc safari, designtech

Question
I have a 1998 gmc Safari that came w a Python 1500 esp alarm/ remote start system installed. it was working just fine then all of a sudden it stopped. The remote has a new battery, the LED is bright green. But I get no results upon pressing the remote buttons even while inside the van. Usually when you turn off the van the doors unlock, they don't do that either. Is there a troubleshoot to do or a manual that I can follow(my van had a previous owner so I have no manuals for the alarm). Ant help will be greatly appreciated.

Answer
THIS IS AN AUTOMATED RESPONSE
TO YOUR DEI/VIPER/SIDEWINDER/HORNET/VALET
PYTHON/AUTOMATE/CLIFFORD/AVITAL/DESIGNTECH,
AUTOSTART, OR ANY OTHER DEI EQUIPMENT SERVICE
OR, SUPPORT REQUEST.

Sorry, but I am obligated to decline
this request due to a mutual
agreement between DEI & Myself.

If you look at www.CARPROTECTOR.com ,
you will see this policy has not changed.

Please go to either DEI directly
(www.directed.com),
my forum at www.INSTALLSUPPORT.com
and restate your inquiry.

Thank you for
visiting ALARMTEK