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does my truck have passloc?

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=116841
Printed Date: July 07, 2025 at 10:31 PM


Topic: does my truck have passloc?

Posted By: sublime44
Subject: does my truck have passloc?
Date Posted: October 09, 2009 at 7:15 PM

and do I have to bypass it to install a remote starter? If so how do I bypass it?
Its a 2000 GMC Sonoma 4.3L small pickup
The remote starter is by Auto command



Replies:

Posted By: Twelvoltz
Date Posted: October 09, 2009 at 7:28 PM
The truck does have passlock II and you do need to bypass it. There are ways to bypass it with resistors and a relay, if you do a search through the forum you will find several posts about it. I suggest using a GMBP. Very simple installation.

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Installer, IT support, and FFL. I need less hobbies.



Posted By: sublime44
Date Posted: October 09, 2009 at 7:38 PM
Cant I just disable it instead? Wat does passloc do anyway?



Posted By: t&t tech
Date Posted: October 09, 2009 at 9:41 PM
The passlock system, is a factory installed anti-theft detterent which endeavours to prevent undesirable persons from starting you vehicle! In short, to prevent you truck from being hotwired and driven away!posted_image

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COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF. PSALMS 37:5



Posted By: sublime44
Date Posted: October 09, 2009 at 9:44 PM
t&t tech wrote:
The passlock system, is a factory installed  anti-theft detterent which endeavours to prevent undesirable persons from starting you vehicle! In short, to prevent you truck from being hotwired and driven away!posted_image


I can live without it. Can I just cut power to it and disable it?



Posted By: t&t tech
Date Posted: October 09, 2009 at 9:46 PM
Nope! There is a method to bypass it! I'll see if i can find it!

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COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF. PSALMS 37:5



Posted By: sublime44
Date Posted: October 10, 2009 at 12:07 PM
t&t tech wrote:
Nope! There is a method to bypass it! I'll see if i can find it!


I saw a webpage that interupted the passlock wire with a small toggle switch but I cant find it anymore. Does anyone know the link?



Posted By: ckeeler
Date Posted: October 12, 2009 at 11:48 AM

sublime44 wrote:


I saw a webpage that interupted the passlock wire with a small toggle switch but I cant find it anymore. Does anyone know the link?

you cant bypass a passlock system that way. the first thing to do is to identify the passlock wires. have you found them yet?




Posted By: Mike M2
Date Posted: October 12, 2009 at 4:14 PM
Your truck relies on resisted values seen when the key is inserted, there is no way to disable it. Stop being cheap and purchase a bypass(do it right)...

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Mike M2
Tech Manager
CS Dealer Services



Posted By: jim hunter
Date Posted: October 12, 2009 at 8:25 PM
you can bypass it mike, i do not recommend bypasing it fully as a) it makes your vehicle vulnerable to theft and b) if said bypass failed you would be stranded with not even key starting capability, just get an interface( audiovox as-gm4, d.e.i. 556l,bypass kits gmbp or similar, same basic work as bypassing it and it will only be bypassed for remote start not fully therefore maintaining factory security prescence)


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