Power wire when car 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=4911
Printed Date: August 16, 2025 at 12:30 PM

Topic: Power wire when car off

Posted By: prplpasn
Subject: Power wire when car off
Date Posted: October 28, 2002 at 3:02 PM

Hello,

I have a 98 dodge neon. I was wondering if there is a wire that goes 12 volts when car is off. And 0 volts when the ignition is on. I have never heard of it but i figured you guys are the smart ones. Thank. you. Stephen

Replies:

Posted By: chuntag95
Date Posted: October 28, 2002 at 3:16 PM

You could use a relay and make a line like that. Hook it up to an ign hot line and have it normally closed from the batt. When you turn on the ign, the coil is energized and the power drops out. So run a fused line from the battery to 30. Run a fused line from an ign circuit to 85 and run 86 to ground. That leaves 87a as your source.

Someone correct me if I am wrong on this.

-------------
Chris

Posted By: PLAYER69
Date Posted: October 28, 2002 at 5:10 PM

yep thats right chuntag

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