2003 yukon xl alarm remote start
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=98849
Printed Date: May 16, 2025 at 12:20 PM
Topic: 2003 yukon xl alarm remote start
Posted By: big sexy lac
Subject: 2003 yukon xl alarm remote start
Date Posted: November 10, 2007 at 5:19 PM
Well I was told it was an 2002 but It was really a 2003 I had my buddy install a avital 4400 with a 556lw passlock but since the truck ended up being a 2003 I need to install a 457gw,the alarm works and remote starts but not the door locks or door triggers because it needs the 457gw. How hard would this be to swap out being I never installed an alarm remote start?
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Replies:
Posted By: Velocity Motors
Date Posted: November 11, 2007 at 10:01 AM
It's easy. Not too many extra wires except for the door lock inputs and such.
------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: another-kelly
Date Posted: November 11, 2007 at 10:45 AM
you could put in a dei 456L. it does locks via databus, then you don't have to worry about pulling out the 556L or messing with anything other than the locks
Posted By: big sexy lac
Date Posted: November 11, 2007 at 11:16 AM
well thanks alot im going for it ------------- WELL?
Posted By: big sexy lac
Date Posted: November 11, 2007 at 11:21 AM
unfortunatlly my distributor only had the 457gw in stock, i guess i will have to try to do it ,thanks.
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Posted By: big sexy lac
Date Posted: November 13, 2007 at 11:00 PM
Well I got the 456lw i took the dash apart ther is two small wire green & blue and 1 thicker dk.green wire hanging out of the alarm. I don't no where they go or what ther for since my buddy decided 2 keep the install manual thanx dog I kno ur reading. I grounded the 456lw and connected 12v const. I suppose the plug w/the sm.green & blue wires from the 456lw go into the brain , I don't know where the yellowblack wire go from the 456lw. if u can plez help me out,thanx
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