2003 Tahoe Factory Disarm Wire

this is what i found "Doorlock interface kit will: Disarm/rearm GM factory security system as well as unlock and lock doors" (velocitymotor).Houston,TX

"The two most common elements in the universe are H+ and stupidity" (Ellison).

Light Green (-) is all I'm showing as well..What are you installing that you need this wire? If it's a stand alone remote start, the factory alarm shouldn't go off when you remote start the car. If it's a keyless then the module your using to interface with the doorlocks should disarm it. By the way the proper way to test for the factory alarm disarm wire is as follows: Put the black lead of your meter to ground. Put the red lead to the suspected wire. Set your meter to read ohms or continuity. Turn the key in the drivers door and when in the unlock position your meter should beep if set to continuity or read a low resistance if on ohms. Another thing you can try is hooking the factory alarm disarm output to a relay as follows: 85: To (-) factory alarm disarm output from module 86: To 12v constant fused 30: To 12v constant fused 87: To pink (+) ignition wire 87a: Not used This basically will send a positive pulse to fire up the ignition for a second which in a lot of cars will disarm the factory alarm..Good luck, Mike

OH ok.  Yeah i haven't hooked up the door lock interface yet.  Was trying to get the door triggers and the Factory disarm first.  I hope it works.  Thanks on the info for the proper procedure in probing for the wire.  By the way the alarm is a Clifford Matrix RS3. -Thanks alot.

I have installed in a few late model Tahoe's and found the disarm wire at the BCM, which is the box directly under the steering column harness.  It is also a green (-), but is in the far passengers harness, to the right of the purple harness.  I had a customer that continually locked the door with the inside switch when he exited the vehicle, and then he would lock it with the remote start.  When he went to unlock, it set off the factory security.  I directly connected the R/S disarm wire to the green in the far right harness of the BCM and it corrected the problem.davedyer79

2003 Tahoe:

You CAN Hard wire to Light GREEN Wire in Driver Door at Module, which will show Negative when you UN-Lock door with Factory Remote ORYou can use the DATA BUSS Module from Peripheral that hooks 1 wire into PURPLE Wire at at your Vehicles DATA PORT under Driver Dash.  It also takes care of the Door Lock & Unlock and there is a PASSLOCK 2 DATA BUSS available for it.  These products help save time and frustration.

MO

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You Might Be the One That Knows.

you can use the mod from dei 456g. this will take care of locks disarm and door triggers. you just have to hook it up to the purple wire in the datta port.

"This is for a 2002 Tahoe, Have not verified yet if the same for 2003" I used to pickup the light green (-) factory disarm on a lot of the gm trucks and suvs in the plug all the way to the right at the BCM. Lately I've been noticing that it isn't there anymore. Mike

True. I don't think the disarm wire is still in the same place.