Alarm stopped working

SOURCE: 1998 FORD F150 ALARM

check for a fuse under your dash(not in your fuse box) it wil be by itself. pull the fuse alarm will be off...

SOURCE: alarm remote

There should be a alarm by-pass (red button under the dash) located on the drivers side above the brake or clutch (if equipted) peddle. Opening the door (as you probably already found out) will set the alarm off, so it's a good idea to let you neibours know what you are doing so the police are not called on you. Once pressing that button, the alarm and the ignition lockouts will be off and will need to be reset before you can arm it again.

SOURCE: 2005 F150 Keyless Entry

There is a technical service bulletin out on this probelm on 2004/2005 F150.
ISSUE: Some 2004-2005 F-150 vehicles built through 2/7/2005, may exhibit an inoperative keyless entry keypad. This may be due to the vehicle security module (VSM) not being configured to accept keyless entry keypad input.

The fix is to reprogam the vehicle security module with as-built data. So it would have to go to the dealer to do this.
The tsb number is 05-5-5.

SOURCE: ignition alarm will not stop 97 ford f150

The key switch usually breaks or wears out and makes contact. It is on the lock cylinder. This would cause the chime to not come on, or stay on. Sounds like the switch is bad.

1997 F-150/250 Warning Chime, Key-In-Ignition The key-in-ignition chime warns that the key is still in the ignition when the driver's door is ajar. The key-in-ignition warning chime will sound when:

• GEM: Driver door is ajar, the ignition switch is in the OFF/LOCK or ACC position and the keys are in the ignition.
• CTM: Driver door is ajar, the ignition switch is in the OFF/LOCK, ACC or RUN position and the keys are in the ignition.

• Driver door is closed.
• Key is removed from the ignition.
• GEM: Ignition switch is switched to the RUN position.

• Ignition switch RUN position (battery potential on both RUN and RUN/ACC inputs).
• Ignition switch ACC position (battery potential on RUN/ACC input only).
• Key-in-ignition switch (grounded with key-in-ignition, open circuit with key-out).
• LH door ajar switch (open circuit with door closed, grounded with door ajar).

SOURCE: 2002 ford explorer-alarm goes off

At one point the door was lock from the in side and then closed and then unlocked with alarm, try un-locking it from the drivers door, then from the in side push the un-lock button and then close the drivers door. U should have no problems with it, but they do say that putting the key in the ignition and then do what you would like starting it but don't and do it 2 times and then start it will tell the alarm that it is not stolen.

Do u know that key less entry code to your drivers door?
Let me know if you would like your code that is if you don't know where to look.
Nikki2913