door ajar trigger

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=136533
Printed Date: May 14, 2025 at 2:25 AM

Topic: door ajar trigger

Posted By: 87rewire
Subject: door ajar trigger
Date Posted: April 28, 2014 at 10:04 AM

I am trying to wire a Viper 3203. I am having a hard time wiring the door ajar trigger wiring. I am working on a 2002 Pontiac Firebird. Door ajar function works properly when but when armed opening the door wont trigger alarm.

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Replies:

Posted By: howie ll
Date Posted: April 28, 2014 at 11:26 AM

You have the wrong wire on the 3203, you need H1/8 GREEN.
You will also need to separate the door lock wires via a pair of 1N4004 diodes.
See diagram.firebird_door_switches.bmp

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

Posted By: 87rewire
Date Posted: April 28, 2014 at 12:34 PM

I thought that since the bcm was suppling a positive signal that I should tie into the H 1/6 wire. Thanks for the diagram. I will try that routing.

Posted By: howie ll
Date Posted: April 28, 2014 at 12:37 PM

According to Directwire the grey/black at D11 and the BLACK/ white at D12 are NEG (-). 1970s Rolls Royce and some US Fords plus pre 98 BMW 5 Series trunk were POS all else NEG. Have you actually tested?

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

Posted By: i am an idiot
Date Posted: April 28, 2014 at 1:28 PM

There is 12 volts on the wires till the door is open, then it goes to ground. Therefore it is a negative trigger wire.

Posted By: 87rewire
Date Posted: April 28, 2014 at 1:42 PM

Yes i have tested. Previous post is correct. Thanks for all the help.

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