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Installing an Alarm. I got questions

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=10514
Printed Date: July 16, 2025 at 6:52 AM


Topic: Installing an Alarm. I got questions

Posted By: Luvs2Race
Subject: Installing an Alarm. I got questions
Date Posted: March 06, 2003 at 1:23 PM

Ok. I just recently bought the AlphaGuard A90. (https://www.concordia-auto.com   (A88)). Now my truck doesn't have power locks so I just wanted to know how I would add central locking to my truck through the alarm? I bought two actuators that only have two leads which prob means that you have to reverse polarity to get it to lock/unlock.



Replies:

Posted By: auex
Date Posted: March 06, 2003 at 3:06 PM
Yup. Basically install the motors and run the wires to a common place near the alarm preferred. Then depending on the output of the alarm you would wire two relays like this:for locks-85 lock output from the alarm, 86 opposite polarity of the lock output(if lock is neg then this would be pos), 30 lock motor wire, 87a ground, 87 +12V. For unlock every thing is the same except 85 would be the unlock output and 30 would be unlock motor. Here is a diagram https://www.the12volt.com/doorlocks/page3.asp#arp

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