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690VX

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=18316
Printed Date: July 17, 2025 at 2:18 PM


Topic: 690VX

Posted By: draasch
Subject: 690VX
Date Posted: August 31, 2003 at 2:59 PM

the alarm has a 4 wire shock sensor. the grren wire comes from the alarm and is just loose. the sensor has a green wire that is attched to the blue neg trigger wire. if i cut the one green and connect it to the other grenn, will it give me a pre-warn chirp??/

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Good Luck
David
Ace Security
813-376-9778
Tampa
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Replies:

Posted By: JWorm
Date Posted: August 31, 2003 at 5:47 PM
You should already have a pre-warn chirp unless it is adjusted improperly. The shock sensor will give a short pulse on the blue wire during a light hit and a long pulse on the blue wire if its a bigger hit. The alarm knows the difference between a short pulse and a long pulse.

The loose green wire is for adding other sensors and works the same way. It can be used for a dual stage motion sensor among other things.

Also, make sure the end of the harness with the loose green wire is plugged into the alarm and not the shock sensor. Reversing the harness will eliminate pre-warn.


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