trunk release wire

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=111934
Printed Date: July 12, 2025 at 7:52 PM

Topic: trunk release wire

Posted By: torres1708
Subject: trunk release wire
Date Posted: February 25, 2009 at 8:51 PM

I recently bought an alarm that I hooked up and everything works fine. The only problem I have is setting up the Trunk Release. I bought 2 actuators to unlock the tonneau cover from my Chevy Silverado, but I am not getting any signal from the trunk release wire..

In order to make it work, I need to get a 12volt pulse... With the alarm I bought, you simply hold the unlock button for 3 secs and it is supposed to unlock.

Any information would be appreciated. Thanks.

Replies:

Posted By: 91stt
Date Posted: February 26, 2009 at 12:43 AM

What alarm are you working with?

Posted By: howie ll
Date Posted: February 26, 2009 at 3:34 AM

Withought knowing what alarm we can't go any further but; and you will have to meter this, the trunk release wire usually provides a low current negative output. Feed this to terminal 85, 12v+ at actuator amperage x 2 e.g. 20 - 30amps to 86 and 87, to actuators from 30. That instruction is also in most alarm install manuals.

Posted By: torres1708
Date Posted: February 26, 2009 at 6:53 AM

It is a no brand alarm I bought from eBay. It just says green wire to trunk release in the install manual...

Posted By: ckeeler
Date Posted: February 27, 2009 at 6:52 PM

the green wire is most likely a low current negative output, so you will need to use a relay to change the polarity to positive. check out the "relay" section at the top of the page. there are diagrams there to show you how.

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