QuestionHi,
My 1998 Nissan Altima security alarm suddenly goes off on its own. The horn starts honking and head lights start blinking.
I do not have a remote for the car, i only use the keys to unlock it. Can you plz tell me how I can disable the security alarm please.
I am actually quite ignorant of the car internals. Would really appreciate if you can provide specific details to disable the security alarm in my 98 Nissan altima (photos/images plz)
AnswerOk, a bit complicated.
This system depends on the physical action
of the door lock locking and unlocking-arming and disarming.
If you have a factory remote, that would do this to
specifications.
This can only be achieved 3 ways:
1. Use key in the drivers door, turn left,
then right to disarm and unlock.
2. Add an after market keyless entry system to emulate
the factory remote functions. I have several models
if this option suits you.
3. Acquire or use & or, replace the original remote that
can control it as specified. This would be at the
local dealership parts department.
(This is why there is no wire you could ground
without affecting the door lock system.
A single negative pulse to the unlock wire will disarm
without unlocking, yes, but would always disable the
locking mechanism. Not good.)
Keep in mind, if this is after market
(siren and flashing parking lights)
then it's a different method entirely.
The standard method to disables as follows:
Look under the dash area for a button or, a toggle
switch. When you locate it, turn on the ignition
key, press and hold in the button (little
spring loaded micro button, red or black possibly)
until the alarm chirps 1 time. This should over ride
the system, and only the keyless entry part,
if installed, would still be operating.
The LED (light emitting diode) light in the dash
should also go on solid. If it's a toggle type,
then key on, flip the switch in the other direction
This would be OVERRIDE/VALET mode.
Repeat this process to toggle back to service mode.
R. Martin - ALARMTEK
