99 Alero security Install

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=50355
Printed Date: July 04, 2025 at 5:18 PM

Topic: 99 Alero security Install

Posted By: Schimmel03
Subject: 99 Alero security Install
Date Posted: February 17, 2005 at 11:25 PM

I found the wiring diagram for the Alero, but I'm having trouble figuring this part out:

*2 Lock requires a negative trigger, and unlock requires a negative trigger through a 1,500 ohm resistor. Must use relays. Must close doors to lock with a single pulse.

What does this mean? I figured out how to lock the car but not unlock. Can someone help me out with this? Thanks!

Eric

Replies:

Posted By: extreme sound1
Date Posted: February 18, 2005 at 12:23 PM

are you using a dei system you can use a 456l door lock resistance learning module. it will make things much easier but if you dont have that i can give you a wiring diaram on how to make the realys for the door locks. also unlock requires a double pulse which is in your programming manual.

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