Adding shock to factory

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=30624
Printed Date: July 17, 2025 at 4:09 PM

Topic: Adding shock to factory

Posted By: sierradenali
Subject: Adding shock to factory
Date Posted: April 18, 2004 at 8:53 PM

wish to add shock sensor to factory alarm on 2004 sierra. relay diagrams or thoughts would be great. will the temp. ground of sensor be enough to trigger dome circuit if i tap into that? need sensor on when truck is off and igition shutting relay off is my thoughts. anyone care to throw their 2 cents in?

thanks guys!

Replies:

Posted By: wblakes
Date Posted: April 18, 2004 at 10:47 PM

you can get a shock sensor from www.autotechs.com and add it to any trigger wire to set the alarm off.

Posted By: sierradenali
Date Posted: April 19, 2004 at 3:42 PM

i have many shock sensors kicking around, can't i use one of them and use some relay configuration to interface it with factory alarm?

Posted By: draasch
Date Posted: April 19, 2004 at 4:14 PM

is there a hood pin switch under the hood????

-------------
Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt

Posted By: sierradenali
Date Posted: April 19, 2004 at 4:36 PM

no hood pin or light under hood. seems they dont want sierra denali owners to look under hood! i have been out of install business for 7 yrs and dont have collection of relay configs i had made and gathered over the 19 yrs i was installing. i know i can make some sort of latching relay so shock works when truck is off, perhaps another to increase shocks signal to trigger dome, 1st relay disengaged when it gets ignition? its been quite awhile so anyone who has added shock to factory system with databus wiring in vehicle please hook me up posted_image

thanks,

Dave

Posted By: sierradenali
Date Posted: April 19, 2004 at 7:07 PM

BTT

Posted By: JWorm
Date Posted: April 20, 2004 at 12:13 AM

Wire the sensors ground wire (black) to a true ignition wire (pink) in the truck. When the ignition is off it has a strong enough ground for the shock sensor to work.

Posted By: sierradenali
Date Posted: April 20, 2004 at 12:46 AM

will the impact from shock need to be boosted to trigger dome thou?

good idea about ign. wire btw i should have thought of that....suxs getting old lmao