viper 5901 problem
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=122621
Printed Date: May 24, 2024 at 10:03 PM
Topic: viper 5901 problem
Posted By: kevins163
Subject: viper 5901 problem
Date Posted: July 11, 2010 at 11:01 AM
i have a viper 5901 alarm on a impala ss 2008. when i arm the alarm it arms but then it will say door open on the remote sometimes trunk open. 20 mins later the full alarm goes off and say door open or trunk open. can somebody please tell me why this is happening. i took it over to an authorized viper dealer and they don't know whats going on. please help me its annoying to have this happen at 3 a.m or 4 a.m please help.
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KS
Replies:
Posted By: tedmond
Date Posted: July 11, 2010 at 8:47 PM
you need to isolate door triggers from the bcm.when the bcm goes to sleep, it sends pulses out that can set off the alarm.
go to downloads and search gm door triggers ------------- Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert
Posted By: kevins163
Date Posted: July 12, 2010 at 3:06 AM
what does BCM mean ? so this is normal why would it just go to sleep like that and send off signals. Today its working fine. its just some dayz i arm it and like 10 hours later it does it.
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KS
Posted By: cobraguy
Date Posted: July 12, 2010 at 9:27 AM
My first guess for BCM would be Body Control Module...
Posted By: Mark Mizenko
Date Posted: July 12, 2010 at 10:51 AM
BCM does mean Body Control Module. The BCM consumes alot of current when it's "awake", Thats the reason it "goes to sleep" after a certain period of time, when it's not needed (car is parked).
You NEED to do the diode isolation on those triggers. This technique is used on a few different types of cars, all for the same reason.
Dodge started this "checking the domelight" on their vans somewhere back around '86-'87 and drove installers crazy.
Posted By: kevins163
Date Posted: July 12, 2010 at 11:55 AM
Wow i appreciate this help so much it just went off again this morning. So what i have to do is open the door arm it of course its go say door open unarm it then shut the door then arm it and its good for lawd knows how long probably another 10 hours or so. but do you know exactly how long it will take for it to go to sleep ? cuz with the viper system it said if u haven't touch the alarm in 72 hours the remote goes to sleep like it won't receieve signal until u press a button.
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KS
Posted By: Mark Mizenko
Date Posted: July 12, 2010 at 1:43 PM
Cant tell exactly how long it will take to go to sleep. 10-15 minutes most times. But it depends if the BCM is sensing a draw.
Posted By: howie ll
Date Posted: July 13, 2010 at 5:20 PM
You need DEI 1076 to cure this. Should be on this site. Yes we have this problem in the UK mainly the Ford GEM module but also BCM on some VWs which luckily for you aren't available in the US.
Posted By: joseloezajr
Date Posted: July 15, 2010 at 12:13 PM
you can also add a 1k resistor from you negative door triger of the 5901 to 12+ this will eliminate the pules sended by the BCM
Posted By: kevins163
Date Posted: July 15, 2010 at 2:28 PM
Well i can tell you this i did do anything special to it but when the alarm goes off and say door open / trunk open. I open the door and trunk then set it while its open. unarm it then close it then arm it again and since i did that for whatever reason it haven't false alarm since sunday and today is thursday morning. idk why it haven't did it yet but i guess it was magic
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KS
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