03 avalanche remote start problem
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=100598
Printed Date: July 04, 2025 at 6:34 AM
Topic: 03 avalanche remote start problem
Posted By: swatpilot
Subject: 03 avalanche remote start problem
Date Posted: December 30, 2007 at 9:26 PM
I installed a RS on a 03 Avalanche but have one problem. When the RS is activatied, it start the car fine but the factory alarm goes off. I connected the factory OEM alarm disarm wire to the lt green wire on the BCM purple plug. All the information I have shows this to be the (-) trigger OEM disarm wire. Any thoughts? Thanks
Replies:
Posted By: Twelvoltz
Date Posted: December 30, 2007 at 10:00 PM
What bypass module did you use? What RS system did you install?
The analog factory alarm disarm wire is a light green wire negative trigger, but it is at the driver door module in the door not available at the BCM.
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Posted By: swatpilot
Date Posted: December 30, 2007 at 11:03 PM
I did it for a friend, he got a Mars 11 RS and omega bypass, as for the light green wire at the window module, is that the module at the door switch? The sheet I got said both at the window mod. and the BCM.
Posted By: Chris Luongo
Date Posted: December 31, 2007 at 10:42 AM
You did test the green wire at the BCM, and not just blindly connect to it, right?
The correct disarm wire is only available inside the door from 2003-up.
If you use a databus module to control the doorlocks from the aftermarket remote, that'll take care of the disarm too.
Also, these trucks only make a very brief horn honk when remote starting; I'm surprised your friend is bothered by it.
Posted By: chriswallace187
Date Posted: December 31, 2007 at 1:23 PM
swatpilot wrote:
I did it for a friend, he got a Mars 11 RS and omega bypass, as for the light green wire at the window module, is that the module at the door switch? The sheet I got said both at the window mod. and the BCM.
The driver's door module and window module are one and the same...the big stupid piece with locks/windows/mirror switches. To my knowledge on all '03-06 GM full-size trucks/SUVs the disarm wire is only at the driver's door module - BCMs are different from the '99-'02 models, which didn't use a driver's door module. Testing it - connect your meter's red lead to 12v+, black lead to the green wire. When you turn the key in the door to unlock, meter should read +12 volts. ------------- C Renner's Auto Electronix
My service is cheap, quick, and good - pick any two
Posted By: swatpilot
Date Posted: December 31, 2007 at 5:11 PM
Thanks Ill give it a try
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