How can i disarm the factory security alarm.i have tried the key locks. i have no remote with the car. i didnt know it had an alarm when i bought it . 1995 chrysler cirrus

Door Key Switch
The BCM monitors the door key switches in order to disarm the CTD system. When the lock cylinder turns in order to unlock the door, the switch grounds the disarm input to the BCM.
The key lock input to the BCM is probably missing , BCM doesn't see it . So it think's your breaking into the vehicle. Did you try the passenger door to see if it will disable the alarm .
The BCM - body control module ! Electronic -computer !
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Content Theft Deterrent (CTD) Does Not Disarm with Key Lock

The factory service repair manual has a 23 step diagnostic procedure . An you would need a factory scan tool to find the correct fix.
Turn ON the ignition with the engine OFF.
With a scan tool, observe the door key switch parameter in the Body Control Module (BCM) security data list.
Does the scan tool display INACTIVE?

Locking the Vehicle Without Arming the System
Use one of the following procedures in order to lock the vehicle without arming the system:
• Procedure A -- Lock the vehicle using the manual door lock knobs. Close all the doors.
• Procedure B -- Close all the doors. Use the key or the power door lock switch in order to lock the door. The doors must be closed prior to locking the doors for this procedure.
Disarming the System
In the arm initiated mode, the following conditions are true:
• The security telltale is ON.
• The doors are open.
In order to disarm a system in the arm initiated mode, perform one of the following procedures:
• Press the power door lock switch to the UNLOCK position.
• Press the door unlock button on the key fob.
In order to disarm a system in the arm delay or the armed mode, perform one of the following procedures:
• Use the key in order to unlock one of the doors.
• Press the door unlock button on the key fob.
Deactivating the Alarm
In the alarm mode, the following conditions are true:
• The horns sound intermittently.
• The headlights and the park lamps are flashing.
In order to deactivate a system in the alarm mode, perform one of the following procedures:
• Use the key in order to unlock one of the doors.
• Press the door unlock button on the key fob.
• If the vehicle control module (VCM)/powertrain control module (PCM) receives a valid Passlock™ ignition key rotation.

usualy there is a switch on the driver and passener side, try disarming by unlocking drivers door with the key to disarm the factory alarm, or the passenger door. this should turn off the alarm if it is not aftermarket. the factory alarm will arm any time the door is locked by key or power door lock. good luck

My guess would be if it is the factory alarm the security chip in the key has failed, or the sensor in the lock cylinder.
Can you disarm the alarm by locking and unlocking the drivers door with the key ?

Here are the options for disarming a factory alarm while it's going off:

1. Close all doors, trunk and hood. Alarm will stop after preset time.

2. Hit the unlock or lock button on the remote. (One of the 2 works... I just don't remember which.)

3. With all doors, trunk and hood close, insert the key in the driver's door and unlock/lock the doors manually.

Also, is it a factory security system? Is it a honda key fob? or a remote start system perhaps?

put the key in the drivers door lock it with the key still in the lock unlock it and then pull the key out do this three times that is the factory built in security programing shut off system for jeeps and chrysler

The Simple Act of Locking the Driver side Door WITH KEY Arm the Factory Alarm. And UNLOCKING Same Door with KEY Disarms it The FOB < Rmote for Alarm Just Honks Horn and Flashes Lights, But it Does the SAME ARMIND & DISARMING. I Hope this Helps You out !!

factory alarms are passive, if it is working it sets itself when u exit the car. u don't need the remote for the alarm to work if it has a factory system. if u want to test if it is working lock the car with the power lock button and leave the window down, reach inside the car and open the door from the inside handle, the alarm will sound if it is working, to disarm just lock and unlock driver door with the key..

Lock the car up with Power Lock, KEY in HAND NOW at the DRIVER SIDE DOOR USE "KEY" TO UNLOCK THE DOOR this should disarm the Factery Security System.

Time for a new key fob.

Have the door panel removed. On the back of the lock cylinder(should be but it maybe loose)harness. manipulate the harness to disarm the factory alarm. Car should start. [email protected]