disabling factory alarm in 99 gmc pickup

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=52756
Printed Date: July 13, 2025 at 6:25 PM

Topic: disabling factory alarm in 99 gmc pickup

Posted By: DaBeast
Subject: disabling factory alarm in 99 gmc pickup
Date Posted: March 28, 2005 at 7:56 PM

i have a 99 gmc seirra i am tring to disable the factory alarm and get the start kill t work right. what do i have to do for this?

Replies:

Posted By: Velocity Motors
Date Posted: March 28, 2005 at 8:39 PM

There is a light green wire at the BCM in the purple plug that requires a (-) pulse to disarm the OEM security. The plug is on the right side of the BCM and the BCM is in the center of the driver's side dash with 3 plugs facing the driver.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: mo12v
Date Posted: March 28, 2005 at 8:39 PM

Depends on what you are installing...???...
<<get the start kill t work right. what do i have to do for this?>>
Do U have an Alarm or Starter "Kill" on already or are you trying to hook it up?

OEM Alarm Disarm

GREEN (-)

WHITE CONNECTOR IN DRIVER KICK

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Posted By: DaBeast
Date Posted: March 29, 2005 at 6:42 AM

do i cut the light wire? what do i hook up to it do diarm the factory system?

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