anyone make sense of this diagram

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=95268
Printed Date: May 14, 2025 at 11:35 PM

Topic: anyone make sense of this diagram

Posted By: jjl12
Subject: anyone make sense of this diagram
Date Posted: July 02, 2007 at 12:21 AM

Can anyone decipher the wiring for this DPDT relay used in the kill switch. I am not that conversant with relay wiring (std relays Ok, but the DPDT has me baffled in this diagram)
The link for the complete setup is
https://autospeed.drive.com.au/A_107975/cms/article.html
posted_image

Replies:

Posted By: KPierson
Date Posted: July 02, 2007 at 8:21 AM

Wire 12vdc to one side of the coil
Wire the other side of the coil to ground, through a magnetic switch

Now you have two sets of contacts:

Contact A:

C - (-) side of coil
NO - to ground through a NC pushbutton switch
NC - No connection

Contact B:

C - 12VDC
NO - (+) output to drive 'Heavy duty automotive relay'
NC - flashing LED (not actually necesarry)

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Kevin Pierson

Posted By: meh66
Date Posted: July 02, 2007 at 2:23 PM

The LED is used as a visual indicator to let you know if the immobiliser is activiated or not.

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MEH66
"Car Performance and Mobile Electronic Enthusiats"

Posted By: KPierson
Date Posted: July 02, 2007 at 3:41 PM

And thus not actually needed to make the system function as designed.

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Kevin Pierson

Posted By: jjl12
Date Posted: July 03, 2007 at 2:51 AM

Thank you for your replies. I will put the system together tomorrow to see if it works as described.
Jeremy

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