Viper 791xv on 99 navigator false alarms
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=73439
Printed Date: April 29, 2024 at 12:32 AM
Topic: Viper 791xv on 99 navigator false alarms
Posted By: rytizzle
Subject: Viper 791xv on 99 navigator false alarms
Date Posted: February 24, 2006 at 7:11 PM
i have a Viper 791xv alarm installed on my 99 lincoln navigator and my alarm goes off for no reason about less than an hour after arming it...any help??? what do i do? the sensor is turned all the way down. please help
Replies:
Posted By: Hornshockey
Date Posted: February 24, 2006 at 7:18 PM
what zone does it show triggered?
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Life moves pretty fast; if you don't stop and look around once in a while; you could miss it.
Posted By: rytizzle
Date Posted: February 24, 2006 at 7:19 PM
its usually the the hood or trunk. a friend of mine said it had something to do with the gem (generic electronic module).
Posted By: 1994honda2005
Date Posted: February 24, 2006 at 8:37 PM
the GEM module has to be bypassed on all 2001 and up ford vehicles.
check this link. set your alarm up this way and youll be set.
https://directechs.com/techtips/pdfs/resources/security/directed_techtips/1093.pdf
Posted By: rytizzle
Date Posted: February 24, 2006 at 8:43 PM
thanks
Posted By: Hornshockey
Date Posted: February 24, 2006 at 8:59 PM
actually that setup won't do anything for the false alarms. The alarm gets set off because the GEM sends a data signal through the doorpins when it shuts down. It is the data signal that causes the alarm to false. You'll need a relay to isolate the wires in the car from the triggers on the alarm. Wire your relay up like this
85 - +12V
86 - door trigger from vehicle
87 - ground
30 - negative door trigger to alarm.
The coil on the relay will not energize when the GEM shuts down, only when a door is opened. This should fix the false alarms. You'll just have to do this procedure on each individual trigger: doors and hatch, also the hoodpin if it is a factory hood pin.
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Life moves pretty fast; if you don't stop and look around once in a while; you could miss it.
Posted By: genehewett
Date Posted: February 27, 2006 at 7:57 PM
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