Viper 550 ESP Automobile Alarm User Manual


 
© 2000 Directed Electronics, Inc. Vista, CA 49
troubleshooting
Starter kill doesn't work:
Is the correct wire being interrupted? If the car starts when the starter kill relay is completely disconnected, the
wrong starter wire has been cut and interrupted.
Is the yellow wire of the starter kill relay going to primary ignition? This wire must be powered in the run and
start positions.
Shock sensor doesn't trigger the alarm:
Has the NPC™ system been triggered? If so, you will hear 5 chirps when disarming. To check this, turn the igni-
tion key on and off to clear the NPC™'s memory, and then retest the shock sensor. For a detailed description of
NPC™, see Nuisance Prevention Circuitry section of this 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, since even if the door is instantly closed again, the progression from chirps to constant siren will continue.
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 Connection Guide section of this guide.)
System will 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 Diagnostics section of this
guide.) The shock sensor, if set to extreme sensitivity, 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 section of this guide.
Status LED doesn't work.
You've probably guessed already, but here goes: Is it plugged in? (See Plug-In LED and Valet®/Program Switch
section of this guide.) Is the LED plugged into the correct socket?
Door locks operate backwards.
This unit has easily-reversed lock/unlock outputs. Recheck wire connections to see if you have reversed these.
alarm troubleshooting