Trunk release + factory remote?

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=66551
Printed Date: October 28, 2025 at 12:33 AM

Topic: Trunk release + factory remote?

Posted By: techfiftyfive
Subject: Trunk release + factory remote?
Date Posted: November 18, 2005 at 9:18 PM

Anyone know if it would be possible to wire up a trunk relase solenoid with factory remotes? My remotes have only 2 buttons lock and unlock.

Of course with relays, would there be any side effects to it if I used my 2nd unlock (Wire shows up as positive when unlock is pressed twice) wire?

Or does the solenoid need to have a certain delay of some sort?!

Any input would be greatly appreciated. Thanks

Replies:

Posted By: mo12v
Date Posted: November 18, 2005 at 9:25 PM

Depending on Vehicle,......You could come off Second Unlock with Relay..........That probably would be cheapest way
Or you could get a Pulse Expander to add more Pulses

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Posted By: techfiftyfive
Date Posted: November 19, 2005 at 3:56 AM

Any negative side effects from doing it the cheap way?

I have no idea what a pulse expander is but Im going to check eBay for one ;)

Posted By: techfiftyfive
Date Posted: November 19, 2005 at 4:04 AM

Just to make sure cause Im not too good with relays, can you double check if this would be right:

30 = Output to (+) side of solenoid

86 = Ground

85 = (+) 2nd unlock wire

87 = Fused (+) 12v

Posted By: mo12v
Date Posted: November 19, 2005 at 8:28 AM

That would be for POSITIVE Pulse.................
Not all vehicles are POSITIVE Pulse......
What Year, Make & Model Vehicle are you working on?

-------------
MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Posted By: techfiftyfive
Date Posted: November 22, 2005 at 2:11 AM

01 Eclipse. Everything works fine, except everytime that I only want to unlock all the doors, my trunk opens lol. Maybe making a 3rd unlock is possible?!

Posted By: techfiftyfive
Date Posted: November 25, 2005 at 6:39 AM

Now for some reason the trunk release has stopped working... Havent had the time to look into it yet though...