2nd Generation (GE 08-13) 2nd Generation specific talk and questions here.

Factory Alarm and Immobilizer question

  #1  
Old 12-17-2009, 11:52 PM
john21031's Avatar
Member
5 Year Member
Thread Starter
Join Date: Apr 2009
Location: SoCal/Castaic
Posts: 983
Factory Alarm and Immobilizer question

Is it really made in such a way that one can get in the car and drive away without having to have a key fob?

I set the alarm to an armed position, then waited 15 seconds. Then opened the door with the key, and started the car all without having to disarm it????


Is that really how it's designed? So to disarm the alarm I don't have to to have the key fob, and just have the right physical key???? Or does it somehow sense the chip in the key?

Shoot, does it mean the thief with the correctly cut key can drive it away like it doesn't even have any immobilizer???
 
  #2  
Old 12-18-2009, 12:13 AM
Hootie's Avatar
Member
5 Year Member
iTrader: (3)
Join Date: Mar 2008
Location: South of Heaven
Posts: 4,788
The keys have chips embedded in them and they are coded to correspond with your alarm, so using the key in the door cylinder to unlock the car will unarm the alarm as well as the immobilizer and allow you to start the car. On the other hand, if you are inside the car while the alarm armed and try to start the car, the immobilizer will not allow the engine to start and the alarm will sound.
 
  #3  
Old 12-18-2009, 01:02 AM
john21031's Avatar
Member
5 Year Member
Thread Starter
Join Date: Apr 2009
Location: SoCal/Castaic
Posts: 983
So you are saying that the electronic chip disarms the immobilizer when you turn the key in the ignition lock?

So how would it do that?

Does it send the signal to the receiver to disarm it or does the lock itself disarm the system when it's turned? If it sends the signal to disarm, what causes the signal to be sent?

If it's not a signal and is based on some sort of magnetic properties and it intaracts with the receiver while in close proximity, then again, at what point will it be able to disable the alarm? Hope this questions make sense.
 

Last edited by john21031; 12-18-2009 at 01:05 AM.
  #4  
Old 12-18-2009, 01:57 AM
Hootie's Avatar
Member
5 Year Member
iTrader: (3)
Join Date: Mar 2008
Location: South of Heaven
Posts: 4,788
Yes, a signal is sent to arm/unarm the alarm via the driver door it is turned clockwise or counterclockwise. How does it beats me but I am sure that the key is transmitting the signal because whenever the key is turned to the lock position, the doors lock and the alarm is armed. In contrast, whenever you turn to the unlock position, the driver door will unlock and if you turn the key to the unlock position once more, the remaining doors and hatch will unlock. Much like using the key fob.
 

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.