i need a costant ground

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=65344
Printed Date: September 15, 2025 at 12:03 AM

Topic: i need a costant ground

Posted By: stevenlusk
Subject: i need a costant ground
Date Posted: October 31, 2005 at 5:33 AM

i am trying to do a keyless entry from scratch, i have the actuators and bothe the lock and unlock wires need to be grounded and then the alarm put off a positive charge to move the actuator, the problem i am having is a way to ground both wires and when i press lock or unlock that the power dosnt also go to the unlock, if i have only one ground hooked up it will lock or unlock depending on what side i have grounded but when i ground out the other wire it quits working i think what i need is a way to isolate the ground so they dont back up to each other

Replies:

Posted By: stevenlusk
Date Posted: October 31, 2005 at 5:45 AM

i am also doing it with no switches

Posted By: mo12v
Date Posted: October 31, 2005 at 7:36 AM

https://www.the12volt.com/doorlocks/page3.asp#5w

Actuators / Reverse Polarity

This is practically identical to the 5 wire alternating 12V(+) system above. The only difference is there's no switch! Both motor legs rest at ground at the relays. To lock or unlock the vehicle, polarity is changed on one motor leg.
posted_image

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

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