2004 chevy silverado crew cab
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=91137
Printed Date: May 12, 2025 at 2:12 PM
Topic: 2004 chevy silverado crew cab
Posted By: cjohnston
Subject: 2004 chevy silverado crew cab
Date Posted: February 28, 2007 at 8:42 PM
Im trying to install an alarm on a 2004 chevy truck and i need the door lock/unlock wire colors. I tried the lt. blue and white wires at the BCM and that didn't work, do I HAVE to have a door lock interface module or is there a way around it? Any help would be appreciated.
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I'll share my limited knowledge with anyone who can use it, and many thanks to those who share their knowledge with me.
Replies:
Posted By: pro17
Date Posted: February 28, 2007 at 9:53 PM
You need and interface module for the door locks. Unless you have a base model truck. This is from directechs "On base model trucks, the interface module is not necessary. Instead, the lock wire is lt. blue (-), pin B5, and the unlock wire is white (-), pin B10. They are in the lt. blue plug at the BCM." Hope that helps you out.
Posted By: KarTuneMan
Date Posted: February 28, 2007 at 10:07 PM
| LOCK | SEE NOTES | | | | | | The doorlocks are Class 2 Data on this vehicle and cannot be interfaced directly. Interface modules for both doorlocks and security are available for this vehicle. Contact your supplier for more information. |
| | UNLOCK | SEE NOTES | | | | | | The doorlocks are Class 2 Data on this vehicle and cannot be interfaced directly. Interface modules for both doorlocks and security are available for this vehicle. Contact your supplier for more information. |
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Posted By: another-kelly
Date Posted: March 01, 2007 at 7:04 PM
there's a huge PITA way to do it without the interface
CLICK HERE FOR OTHER WAY
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