1999 -2002 GM Trucks

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=25287
Printed Date: May 13, 2025 at 11:26 AM

Topic: 1999 -2002 GM Trucks

Posted By: atcodoctor
Subject: 1999 -2002 GM Trucks
Date Posted: January 26, 2004 at 11:13 AM

Is it true?

If you in install a remote starter in a Gm truck (1999- 2002) with a factory theft system that you can not arm the factory alarm with after market key fob. The only way is use the OEM key fob or the power door locks.

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TheDoctor

Replies:

Posted By: bmf1000d
Date Posted: January 26, 2004 at 11:43 AM

no i have got the factory alarm to work just fine as long as your remeber to use your rearm function on your RS

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"Big" Mike
Double Take
Fremont, Ne
remember to check all your wires with a dmm not a test light!!
i take no responsibilty whatsoever for the vailidty of the info nor consequences thereof

Posted By: atcodoctor
Date Posted: January 26, 2004 at 12:13 PM

The rearm wire on my RS. What wire do i connect to on the OEM harness. (at the BCM would be nice)

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TheDoctor

Posted By: bmf1000d
Date Posted: January 26, 2004 at 12:19 PM

what kind of Gm truck do you have, GMC sierria, chev sliverado....

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"Big" Mike
Double Take
Fremont, Ne
remember to check all your wires with a dmm not a test light!!
i take no responsibilty whatsoever for the vailidty of the info nor consequences thereof

Posted By: atcodoctor
Date Posted: January 26, 2004 at 12:21 PM

I like to lock my vehicals as i walk away from them with the key fob (habit i guess) I also like the RS system to work as close to OEM as possible.

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TheDoctor

Posted By: atcodoctor
Date Posted: January 26, 2004 at 12:22 PM

The truck is a 1999 GMC Sierra 2500 ext cab.

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TheDoctor

Posted By: bmf1000d
Date Posted: January 26, 2004 at 12:26 PM

here is what we have

https://www.the12volt.com/installbay/detail.asp?info=alarm&year=1999&make=GMC&model=Sierra&ID=17923&type=Alarm

Posted By: atcodoctor
Date Posted: January 26, 2004 at 12:30 PM

I have installed a Valet 561R with the passlock module.

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TheDoctor

Posted By: atcodoctor
Date Posted: January 26, 2004 at 12:41 PM

I noticed on this info link

https://www.the12volt.com/installbay/detail.asp?info=alarm&year=1999&make=GMC&model=Sierra&ID=17923&type=Alarm

Factory disarm = Light green(-) keyless module, Door trigger = Tan(-) light blue passenger Module below steering column, Door lock = light blue(+) keyless entry module below steering column, Door unlock = White (+) Positive trigger

I don't want to complain, but why does it not say these are all at the BCM.

Instead of keyless module and passengers module. this could get confusing.

Just a thought for novices.

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TheDoctor

Posted By: atcodoctor
Date Posted: January 26, 2004 at 12:52 PM

If i pulse the Tan and Blue wires, Should i isolate with diodes?

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TheDoctor

Posted By: bmf1000d
Date Posted: January 26, 2004 at 12:58 PM

Im just give your the information that is stated on this website anyone can look it up for themselves. Its not the tech sheet that i use i just give the one that on the website. As for me i make my own sheet and use a DMM to find all my wires. If you did not wish to have help then dont ask for it. Yes you would diode isolate them.

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"Big" Mike
Double Take
Fremont, Ne
remember to check all your wires with a dmm not a test light!!
i take no responsibilty whatsoever for the vailidty of the info nor consequences thereof

Posted By: jrilla
Date Posted: January 26, 2004 at 1:42 PM

Lets not get too defensive now, no one is knocking anyone, just noticing flaws in wire info. I have what I consider by far the most superior vehicle information software (for Starters and Alarms) but it is not perfectly accurate, so I use three different databases and compare all of them. I always test the wires before I tap into them too. I have had cases where the information is different on all three and the database that I consider the least correct happened to be right in that case.

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J Rilla

Owner/Installer