More GMDL1 Questions

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=41124
Printed Date: July 13, 2025 at 11:08 PM

Topic: More GMDL1 Questions

Posted By: mostlygarbage
Subject: More GMDL1 Questions
Date Posted: October 18, 2004 at 12:31 PM

First of all, I would like to thank MO, for his help. I was trying to make the GMDL1 installation more difficult than it should have been in my '04 Trailblazer. I am still having some trouble though with the factory alarm. If I unlock the doors with the remote and then use the remote start, everything works fine. If I forget to hit the unlock first, the factory alarm goes off. Does this have to do with the pink GMDL1 wires that I didn't hook up or is this in the setup of my remote start module?

Thanks in advance for your help.

Replies:

Posted By: sparkie
Date Posted: October 18, 2004 at 2:07 PM

The GMDL1 module should disarm the factory alarm when you remote start it. When the ground out when running wire is activated by the remote starter, the GMDL 1 is suppossed to send a disarm data pulse to the factory alarm/BCM. You can get around this if your remote starter can be programmed to unlock the doors prior to start-up and relock them after start-up. Check your remote starter's programming abilities for this. You may have also forgotten to place the programming jumper on the GMDL1 in the wrong position.

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sparky

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