5 Wire Door Lock System

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=10340
Printed Date: May 13, 2025 at 12:08 PM

Topic: 5 Wire Door Lock System

Posted By: Gentleman
Subject: 5 Wire Door Lock System
Date Posted: March 03, 2003 at 8:08 AM

I have a 5 wire alternating door lock system on my car that is operated by the alarm output and I want to add a double throw momentary switch for the door locks, 1 wire coming from terminal 30 of the relay locks and the same terminal on the other relay unlocks, when connecting the wires from terminal 30 to either side of the switch which wire do I use as a common on the switch.

Yhanls

Replies:

Posted By: customsound
Date Posted: March 03, 2003 at 11:38 AM

What kind of car???? yr make model?

Posted By: the12volt
Date Posted: March 03, 2003 at 12:40 PM

No need to connect to terminal 30 of each relay. Connect to the coil of each relay to lock and unlock. These will be on the same terminals that your alarm's lock and unlock outputs are connected.

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Posted By: Gentleman
Date Posted: March 03, 2003 at 3:33 PM

Thanks, but still a little confused as to what the common wire should be, I want to use a double throw single pole
momentary rocker switch, lock goes to one terminal, unlock goes to the other terminal what goes on the third terminal, is it the other side of the coil or am I trying to use the wrong switch

      Lock....to lock relay coil

      Common.. ?

      Unlock...to unlock relay coil

Bob

Posted By: the12volt
Date Posted: March 03, 2003 at 3:40 PM

If your alarm provides a ground to each relay coil, then the common on your switch should also go to ground.

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Posted By: Gentleman
Date Posted: March 03, 2003 at 3:58 PM

Thanks again

Posted By: the12volt
Date Posted: March 03, 2003 at 4:00 PM

You're welcome ;)

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