96 maxima grounded output on fac sec sy

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URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=96730
Printed Date: May 16, 2024 at 4:53 AM

Topic: 96 maxima grounded output on fac sec sy

Posted By: bradleonard
Subject: 96 maxima grounded output on fac sec sy
Date Posted: August 29, 2007 at 1:06 AM

I have a 96 Nissan Maxima with the factory security system. Where can I easily find a (-) ground output when the doors are locked? Somewhere in the drivers side dash or center console area would be great.

Thank You

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werd

Replies:

Posted By: bradleonard
Date Posted: November 07, 2007 at 1:47 AM

No one has any info this? I have the full Nissan Electrical service manual but I cannot figure out where this may occur. I need this grounded output so that I can hook up a VARAD scanner to indicate when the doors are locked.

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werd

Posted By: techman93
Date Posted: November 07, 2007 at 6:43 AM

You may need to use relays to change a pulse into a constant.
Door Lock Light GREEN/ Red(-) Driver's Door posted_image

Once activated by the relay on the left, the relay's coil on the right will stay energized until either ground or 12v(+) is removed. You can do this with another relay. Or try connecting to a 12v(+) switched source instead of a constant one. Or you can have a door trigger activate a relay to break continuity. The variations are practically endless.

You can also set the scanner to go on when ignition is off.

Posted By: bradleonard
Date Posted: December 03, 2007 at 1:47 AM

So there isn't anything that would be grounded at rest? I would prefer to not use relays if I can help it. My truck is full of relays and everytime I have to work on my truck I have figure out what ten different relays do. IT would be cool if I could find a circuit that is ground at rest or grounded when the doors are locked. I used to run the scanner on my old car when the ignition was off, but I really want the scanner to tell me that the doors are locked when its active.

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werd

Posted By: KarTuneMan
Date Posted: December 23, 2007 at 12:24 AM

I would get inside the door at the latch assembly. (a place to start)

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Posted By: tedmond
Date Posted: December 25, 2007 at 9:24 AM

grab the ground for the LED from factory. that should be grounded when armed.

Posted By: bradleonard
Date Posted: December 30, 2007 at 1:40 PM

Ted

Interesting suggestion. I checked the factory Security LED. The LED receives a constant +12v and then receives a GROUND from the Body Control Module. The BCM switches that ground to provide blinking or solid or off depending on the state of the security system. So I guess you could convert the "pulse" Ground with some relays but I'd still rather not use relays if I can help it.

Any other suggestions?

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werd