not needing d.lock interface for ’03 chevy

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=91291
Printed Date: May 08, 2025 at 5:28 AM

Topic: not needing d.lock interface for ’03 chevy

Posted By: mxxmikexx
Subject: not needing d.lock interface for ’03 chevy
Date Posted: March 05, 2007 at 12:45 PM

I remember reading a tech tip in the mobile electronics magazine about a way to grab the doorlocks without the use of a interface module. something about adding pins to a certain plug.... anyone remember this, or know about it?

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Mike Battaglia
Specialized Car Audio
Bensenville IL 60106

Replies:

Posted By: master5
Date Posted: March 05, 2007 at 12:53 PM

There is no mention of the make/model of the vehicle. Perhaps it didn't post completly.

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Posted By: mxxmikexx
Date Posted: March 05, 2007 at 12:57 PM

my bad, 03+ full size chevys

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Mike Battaglia
Specialized Car Audio
Bensenville IL 60106

Posted By: misterjimbo
Date Posted: March 05, 2007 at 1:02 PM

sometimes there is a light blue and a white at the bcm that will do the locks on the 03 through up until the new body style

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Posted By: master5
Date Posted: March 05, 2007 at 1:22 PM

https://www.directechs.com/techtips/pdfs/resources/security/directed_techtips/1601.pdf

Correct...but if it is a model that does not do it at the BCM there is another way as well but seems alot quicker and easy to use the module. check the link.

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Posted By: whitey
Date Posted: March 05, 2007 at 6:16 PM

on the bottom of the bcm there is a plug just above the brake pedal. Pins A2 and A3 are missing. Insert wires in these pins ant it will give you - lock and unlock. Dont quote me on the pin #s as it has been a while since I have done it this way but they are there.

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Visions Edmonton
Installation Manager, DLS
MECP Certified First Class

Posted By: mxxmikexx
Date Posted: March 05, 2007 at 8:43 PM

that sounds more like it whitey. ill have to dig up my old issues of mobile electronics to double check the pin numbers

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Mike Battaglia
Specialized Car Audio
Bensenville IL 60106

Posted By: master5
Date Posted: March 05, 2007 at 9:34 PM

That is a pretty neat time saver..as well as saving the $$ for a module. Post back the pin numbers if you figure it out so no one sends ground into the wrong spot and toasts a BCM.

Thanks

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