Theives killing the alarm!
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=68109
Printed Date: November 04, 2025 at 2:15 AM
Topic: Theives killing the alarm!
Posted By: djkurious
Subject: Theives killing the alarm!
Date Posted: December 10, 2005 at 11:00 PM
I have a friend that has a 99 Tahoe. Everything was taken out of it by a thief. He also noticed that the rear tail light was off and the bulb was gone. He has a Autopage 720 LCD, and obviously it didn't go off. I started thinking on what they did to disable the alarm. The siren wire was not cut. The battery cable was not cut or taken off. I was thinking that they took the tail light off, took the bulb out, stuck a screwdriver in there so the positive and negative of the connections to the bulp housing touch. From that point, I think it blew the fuse to the alarm. Anyone ever heard of this?
Replies:
Posted By: mediashock
Date Posted: December 11, 2005 at 12:46 AM
hmm.. wouldnt there only be power on that light when the break is pressed? so sticking a screwdriver or something wouldnt short it cause there is no power.. UNLESS, the light is triggered by the - wire, then the + one touching a metal body would possibly short it OR slowly drain the battery? not sure
Posted By: Evolution-UK
Date Posted: December 11, 2005 at 3:21 AM
its a very old trick for bypassing alarms.
most alarms today have a seperate feed for the lightflash and/or the light flash wires are fused after coming out of the brain. This stops this method from working.
Posted By: fingaz22
Date Posted: December 11, 2005 at 8:13 AM
evolution-uk is correct this is a very old trick for disabling an alarm and unless the alarm was improperly installed it wouldn't worked. maybe you need to take a look at the person that installed the alarm in the first place. how did they gain entry in to the vechile? popped the door lock?broke a window? does the alarm work now after they broke in?
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Posted By: Powermyster
Date Posted: December 11, 2005 at 2:01 PM
shouldn't have worked that was an early 90's trick thou all companies had that angle sorted by now
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Why oh Why didn't i take the blue pill
Darren Power
Posted By: djkurious
Date Posted: December 12, 2005 at 7:16 PM
Thanks guys!
Posted By: Teamrf
Date Posted: December 12, 2005 at 8:53 PM
I remember seeing that in the MECP book. Since I aven't been installing since the early 90's I can only read about it. But a lot of companies added a fuse on the parking light wire to stop this. I would go back to the installer and see what he/she did on this wire.
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~The Rookie~
Rookie of the year that is...
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