relay set up

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=53866
Printed Date: May 06, 2025 at 8:25 AM

Topic: relay set up

Posted By: Reeceddogg
Subject: relay set up
Date Posted: April 13, 2005 at 5:19 PM

I bought some lights that only have a positive and a negative. i want them to get power or be grounded when the car shuts off. how would i wire a relay to do this. the lights flash and i want them be used a a visual theft deterrant

Replies:

Posted By: dare_ds69
Date Posted: April 14, 2005 at 5:53 PM

well if you want to do that you are going to drain the battery because are going to be on but thas is how can you do it

30 goes to the positive side of the lights

87 and 86 to 12v fused

85 goes to ignition

ground the other side of the lights

just remember the lights are going to be on until you turn on the car again

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how own your mind, control your life.
MECP certified. always use a DMM

Posted By: Reeceddogg
Date Posted: April 14, 2005 at 10:42 PM

thanks but i already figured it out. i had it right but i had the wire from 12constant and the wire from the ignition reversed

Posted By: Reeceddogg
Date Posted: April 15, 2005 at 12:44 PM

The light are only using 200ma so the battery should be fine

Posted By: Reeceddogg
Date Posted: April 18, 2005 at 8:11 AM

that's how i have it set up and it works

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