Car Alarms: 1994 Nissan Sentra Se-R Alarm, nissan sentra, dash area

Question
The security system is preventing my car from starting.  i know the battery
has juice, but the headlights and dash remain dark regardless of turning the
ignition.  the alarm system had been going off just about every time i started
and turned off the car for a while, but it just flashes for a minute and then
goes away.  now the flashing comes back occasionally when i open and shut
the drivers door (not every time) but turning the key in the ignition makes
everything dark again.  
i am suspicious that the something in the drivers door is causing the
problem, because the door hangs very loose and the catch wiggles a lot from
repeatedly slamming the door.  also, it is easy to unlock the drivers door but
very difficult to lock it.  
finally, the trunk has been abused to the point that it doesnt close.  i doubt
this is related, but maybe.  
so is there a way to override?  some sort of button somewhere?  
thanks


Answer
The alarm is is long tamper mode.
You will need to reset, and possibly
re program the remotes. That part you will need
your manual for, but the aftermarket alarm
seems to be doing it's job.
At least we know it's installed correctly
which is actually a good thing here.

Ok, try this.
Put the key in the ignition, and turn forward
all the way just before cranking. Then within
5 seconds, locate, press and hold in the
valet/overide button, found under the
dash area, (push button, spring loaded)
until the installed LED (the blinking light)
in your dash area goes on solid,
and the siren chirps once.

(Your valet switch might be the toggle
(on/off) type. in this case, key on,
flip switch in opposite direction,
then turn the key off.)

This should reset the alarm, and reset
the grounded relay on the starter wire,
allowing you to start the engine.

At this point, the only thing working would
be the keyless entry from the alarm,
if it came equipped that way.

Just Repeat these steps to place it
back to usable armed mode.
You may get 2 chirps, confirming it,
and the lights may flash twice as well.

That should do it.
If you want to remove it at this point,
take it to your neighborhood installer
for this, or buy the wiring chart
(Go to: www.vehiclewires.com)
for the vehicle, and reverse engineer it wire
by wire, until safely removed.

If it does not work out this way,
you will have to replace the system
with one you know how to operate
and what to expect. Don't want to
get stuck in another bad situation.

Let me know what happens.

Robert Martin/CEO-ALARMTEK
www.CARALARMINSTALLER.com