Relay for keyless entry

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=79395
Printed Date: June 21, 2025 at 9:15 PM

Topic: Relay for keyless entry

Posted By: airmcn_3
Subject: Relay for keyless entry
Date Posted: June 20, 2006 at 11:15 PM

I am trying to find out a few things. Mostly how to correctly wire a relay.

I have two wires comming from the brain of my alarm, One way to wire it is to have it throw a - signal to both lock and unlock. you can also wire it so that it has +signal. The problem I am running into is that neither the -signal or the + signal are strong enough to trigger the locks. My question is how do you properly wire up the relays to boost either + signal or -signal? I would appreciate both diagrams if possible.

Thanks for your hlep.

Chris

Replies:

Posted By: duct tape
Date Posted: June 20, 2006 at 11:39 PM

if you want to wire for negative door locks you would connect

pin 87 to ground

pin 86 to 12 volts

pin 85 to the negative trigger of the keyless unit

pin 30 to your door lock/unlock wire

if you have positive locks, you wire the relays the same, except pin 87 would be wired to 12 volts.

Posted By: airmcn_3
Date Posted: June 21, 2006 at 8:06 AM

Dude you rock!! Thank you for your time!

Chris

Posted By: carrfamilynj
Date Posted: June 25, 2006 at 8:37 PM

You stated "pin 85 to the negative trigger of the keyless unit"-would that be the lock trigger or the unlock trigger?