Relay for trunk popper not working
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=84525
Printed Date: June 16, 2024 at 7:21 PM
Topic: Relay for trunk popper not working
Posted By: realgossamer
Subject: Relay for trunk popper not working
Date Posted: October 23, 2006 at 7:21 PM
I installed an Autopage RF405A keyless entry on my '96 Mystique, and now I want to add a remote trunk popper. I grabbed a solenoid off of eBay, and started getting the wiring done.
I played with the multimeter a bit, and found that the auxiliary lead wire produced about a .4V burst (at least that's what the multimeter read) when activated. So I wired that to terminal 85 of the relay, and put 86 to a known good ground. Then terminal 30 went to a constant +12V, and I went to test it, but it didn't work. Wiring the multimeter from the remote unit output to ground still produced a voltage difference, but connecting the multimeter from terminal 87 to ground produced nothing.
I know the relay is good, because before I unhooked it I used it for the horn honk, which I don't actually need a relay for. I also hooked 85 and 87 directly to +12V and 86 directly to ground, and I got a +12V off of 30, so I'm sure it works.
What should I do?
Replies:
Posted By: Mike M2
Date Posted: October 23, 2006 at 9:25 PM
86 and 87 to 12volts, 30 to your solenoid, 85 from the alarm output... ------------- Mike M2
Tech Manager
CS Dealer Services
Posted By: realgossamer
Date Posted: October 23, 2006 at 9:43 PM
You're sure about that? I was pretty sure that the trunk lead was negative until I tested it with the multimeter and got a positive reading, and that threw me off. When I get a chance I'll give it another shot I guess.
Posted By: Mike M2
Date Posted: October 24, 2006 at 6:21 AM
Not familiar with your alarm, but unless it has an onboard relay for trunk release it's a ground. If it had an onboard relay you wouldn't need the relay to begin with...
-------------
Mike M2
Tech Manager
CS Dealer Services
Posted By: realgossamer
Date Posted: October 25, 2006 at 12:28 PM
Yeah...I should have gone with my gut and assumed it was negative. I had my circuit diagrams drawn like that and it was hooked up that way and everything before I tested it with the multimeter and switched everything...I'm just an idiot. Thanks for the help.
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