Viper 280HF, Owner'S Manual

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©
1999 Directed Electronics, Inc.
Diagnostics
The microprocessor at the heart of your system is constantly mon-
itoring all of the switches and sensors connected to it. It detects
any faulty switches and sensors and prevents them from disabling
the entire system. The microprocessor will also record and report
any triggers that occurred during your absence.
If the system is armed with an input active (door open, sensor
triggering, etc.) the unit will chirp once when arming and then
one more time a few seconds later. This is called Bypass
Notification.
NOTE: Bypass Notification will not occur when using Silent Mode or if
chirps have been programmed OFF.
The system will ignore the input that was active when it was
armed until it goes away. Three seconds later it will monitor that
input normally. For example, if your car has interior light exit
delay, and you arm the system before the interior light goes out,
you may get Bypass Notification. Once the light goes out, howev-
er, the doors are monitored normally.
Extra disarm chirps are the Tamper Alert. If four chirps are heard
when disarming, the system was triggered in your absence. If five
Disarming Diagnostics
Arming Diagnostics