Nissan Repair: factory alarm, interior illumination, nissan vehicles

Question
Hi;
I have an 97 infiniti j30 it was good untill a week ago the horn start to beeping and woke up everybody, but the car not starting I discinected the battery and tryed to reconect but does the same thing I got the car with only one key and I think is no chip in it the key is solid metal

Answer
Laszlo,

The car should unlock with the key in the driver's side door.  This should disable the alarm.  You cannot start the car while the alarm is on.  You should have the remote keyfob for the car and the procedure to program it is as follows from infinitihelp.com  

REPROGRAM KEY FOB
QX4, 1997-2004 Q45, I30, I35,1999-2002 G20, FX, G35, M45, Most Nissan Vehicles
The horn chirp can be disable by pressing the lock and unlock buttons simultaneously until the hazard lights flash, and no enable press the lock and unlock until the horn chirp.
To reprogram (enter new ID) key fob (keyless remote controller) follow the steps.
1. Close all doors and lock all doors
2. Insert and remove the key from the ignition key cylinder more than six times within 10 seconds.
  (The hazard warning lamp will then flash.)
  NOTE:
  Key should be withdrawn from ignition key cylinder completely each time.
  NOTE:
  Do not rush the insertion/removal key cycling process. The side
  marker/tail/license lamps and interior illumination will flash twice when this step is
  accurately completed.
3.  Insert key on ignition key cylinder and turn ignition key switch to "AAC" position
   At this time, the new ID code is entered and original (previous) ID codes are erase.
4.  Press any button on the new remote controller once. (The hazard warning lamp will then flash)
   NOTE:
   Do not press the button more than one time in the above step. If the button
   is pressed more than one time, the programming procedure will not be successful.
   The side marker/tail/license lamps and interior illumination will flash twice when this
   step is accurately completed and programming is successful.        
              If there is only one remote controller skip  step 5.
               5. Additional  ID code entry
               Release the door lock, then lock again with door lock/unlock switch
               (In power window main switch)
6.  Remove key from ignition
7.  Unlock driver side door, open driver side door and then close the door. (END)