2002 chevy avalanche

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=5721
Printed Date: July 24, 2025 at 10:24 PM

Topic: 2002 chevy avalanche

Posted By: awaken96
Subject: 2002 chevy avalanche
Date Posted: November 21, 2002 at 7:17 AM

Replies:

Posted By: awaken96
Date Posted: November 21, 2002 at 7:22 AM

i have just installed a gm factory alarm system, to make the system passive arming, i need to conect into the trucks lock circuit, i need to know what color this wire should be. also do i need an extra relay for this operation.......................thanks posted_image

Posted By: jrilla
Date Posted: November 21, 2002 at 7:44 AM

Well your lock wire is lt. blue and your unlock is white and they are positive. They are located in a brown plug at the BCM which is under the drivers side dash. Whether or not you need a relay depends on the the polarity of the input or output from the new alarm. How do you need to hook into the locks? If you have a positive output from the new factory alarm, then you wont need a relay, but if it is a negative form the new alarm you will.

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J Rilla

Owner/Installer

Posted By: PLAYER69
Date Posted: November 21, 2002 at 1:57 PM

You will also need to connect to the disarm wire. It is light green at the purple connector on the same module. YOu need to hook this up to receive a - pulse during or before unlocking.

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