Troubleshooting; Alarm - Viper 5901 Installation Manual

Troubleshooting

➢ Alarm

• Shock sensor doesn't trigger the alarm:
Has the NPC® system been triggered? If so, you hear 5 chirps when disarming.
To check this, turn the ignition key on and off to clear the NPC® memory, and
then retest the shock sensor. For a detailed description of NPC®, see Nuisance
Prevention Circuitry section of the owners guide.
• Door input does not immediately trigger full alarm. Instead,
chirps are heard for the first 3 seconds:
That's how the progressive two-stage door input works! This is a feature of this
system. This is an instant trigger, remember, even if the door is instantly closed
again, the progression from chirps to constant siren continues.
• Closing the door triggers the system, but opening the door does
not:
Have you correctly identified the type of door switch system? This happens often
when the wrong door input has been used. (See Door Lock Harness Wire Con-
nection Guide section of this guide.)
• System does not passively arm until it is remotely armed and then
disarmed:
Are the door inputs connected? Is the H1/6 blue wire connected to the door
trigger wire in the vehicle? Either the H1/5 green or the H1/7 violet should be
used instead. (See wiring diagrams.)
• Door input does not respond with the progressive trigger, but with
immediate full alarm:
Does the Status LED indicate that the trigger was caused by the shock sensor?
(See Di ag nos tics section of this guide.) The shock sensor, if set to extreme sen-
sitivity, may be detecting the door unlatching before the door switch sends its
signal. Reducing the sensitivity can solve this problem.
• The Valet/Program switch doesn't work.
Is it plugged into the correct socket? See Plug-In LED and Valet/Program Switch
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