An anti-theft alarm system for a Ford Taurus is, as one might think, an electronic system installed within the vehicle to prevent the vehicle from being stolen. That said, there are many types of theft deterrent and prevention systems for cars, but an anti-theft alarm system is one of the most common. Essentially the vehicle emits a loud shrieking or electronic alarm sound when activated. This is done in the hopes of calling attention to the car by passersby or making the potential thief nervous and unwilling to continue with the theft. The only problem with this system is that it's so common to hear people accidentally setting off their own or others' car alarms that most passersby ignore the noise, making the efficacy of this alarm system arguable.
There are many parts to a Ford Taurus anti-theft alarm system. First there is the computer control unit, located deep within the car's dashboard, to which all the other components connect. There are sensors on the doors, as well as interior air pressure sensors and interior microphones. There is a mercury tilt sensor located near the computer control unit, as well as a radio receiver. Connected to all of this is a secondary battery to ensure the alarm system is not deactivated should a thief simply disconnect the main battery. Finally there is a siren, which sits next to the computer control center.
When activated by the owner, the computer control unit sends signals periodically to all the sensors. The tilt sensor is activated if the car is pushed or jostled. The door sensor is activated if the doors are opened. The microphone is activated if it picks up any noise coming from inside the car. Likewise the air pressure sensor is activated if the air pressure within the car changes, such as if one of the doors is opened or the windows broken. If any of these sensors are activated, they send a signal to the computer control unit, which activates the siren. The system is only deactivated by the radio signal sent out by the owner's key fob.
