door triggers randomly going off?
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=96426
Printed Date: April 28, 2024 at 4:01 AM
Topic: door triggers randomly going off?
Posted By: dmasjz45
Subject: door triggers randomly going off?
Date Posted: August 15, 2007 at 7:28 PM
on a 1999 grand prix gt and compustar cm3000, diode isolated both doors, seem to work fine when tested w/ volt meter. Have factory alarm still hooked up but w/ disarm wire. Can't figure out why alarm randomly says a door is open. Any help is appreciated, thanks
Replies:
Posted By: dmasjz45
Date Posted: August 15, 2007 at 8:06 PM
actually, it looks like once the triggers go on and sound the alarm (maybe 20 min after alarm armed), they stay on for good...What's going on here
Posted By: flashmcclain
Date Posted: August 15, 2007 at 8:16 PM
Every 25 to 35 minutes the PCM module will try to talk to the doors. Fix is to cut the door trigger, add diode between the connection then grab door trigger on door pin in front of diode. Hope that helps :) ------------- Educate.Educate.Educate!
Posted By: dmasjz45
Date Posted: August 15, 2007 at 8:20 PM
That sounds great and what I was looking for, but I'm not quite that advanced yet. Cut the wires I already have for the triggers, diode them, and then grab the signal right before the diode on the alarm side or door side? Thanks,, appreciate it
Posted By: flashmcclain
Date Posted: August 15, 2007 at 8:40 PM
Door side, you want it that way so when the door is opened the alarm goes off.
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Educate.Educate.Educate!
Posted By: dmasjz45
Date Posted: August 15, 2007 at 8:57 PM
 Im still kinda lost... I have it like this (or like this https://64.85.6.129/extrainfo/diagrams/840_GRAND-PRIX_(-)%20NEGATIVE%20DOOR%20PIN%20ISOLATION%20CIRCUIT.pdf ) But your sayin do it like this? Wouldn't that kinda be the same thing? And this will stop the PCM from falsely saying the door is open? 
Posted By: dmasjz45
Date Posted: August 16, 2007 at 12:50 PM
This seemed to work...Followed the 1076 in downloads for fords, been waiting a good 20 minutes now for it to sound off and it hasn't...Just for anyone that reads this..Thanks flash
Posted By: flashmcclain
Date Posted: August 16, 2007 at 2:07 PM
Welcom :) Let me know if I can assist you with anything else. ------------- Educate.Educate.Educate!
Posted By: steezs
Date Posted: August 19, 2007 at 3:39 PM
Those are some good drawings lol
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THE DUCE
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