71 security system how does it work?
Thread Starter
Pro
Joined: Dec 2006
Posts: 570
Likes: 7
From: Colleyville TX
St. Jude Donor '09
71 security system how does it work?
Could someoine give me a description of how it works?
I have no spark and I am wondering if the security system is affecting it.
Thanks
I have no spark and I am wondering if the security system is affecting it.
Thanks
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
There's no connection between the stock alarm and the ignition system.
The alarm has three microswitches, one for each door and one for the hood. When armed, the opening of any one of these will cause a horn located under the rear drivers side fender to sound.
The alarm has three microswitches, one for each door and one for the hood. When armed, the opening of any one of these will cause a horn located under the rear drivers side fender to sound.
The ORIGINAL and bestest
Joined: Oct 2000
Posts: 10,009
Likes: 240
From: Toronto Ontario
Toronto Events Coordinator
The stock security system doesn't tie into your ignition system. When it is armed via the key switch on the rear panel it arms one side of a latching relay; when a door or the hood is opened, it gives a ground signal to the relay which then latches the relay closed, which then sounds the horn located in the rear above the driver's side muffler; the horn has an alternating on-off cycle controlled by a common flasher relay, and the horn will sound until it is disarmed via the key switch, or until the battery dies, whichever comes first.
- latching relay and flasher are located in the jack storage bin
- rear pin switches in doors and pin switch under hood near wiper door actuator are part of the alarm
- horn located in rear body section above driver's side muffler
hope this helps.
- latching relay and flasher are located in the jack storage bin
- rear pin switches in doors and pin switch under hood near wiper door actuator are part of the alarm
- horn located in rear body section above driver's side muffler
hope this helps.
Last edited by 7t2vette; Jan 30, 2008 at 08:10 PM.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Someone may have modified the standard alarm system. The easiest way to 'cut' into the ignition circuit is to wire a switch into the 12v. feed to your ignition coil. Check into the coil feed wiring to see if there are any splices.
