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Discussion Starter #1 (Edited)
How to: Permanently disable the passlock II system.


I assume no responsibility if you harm your vehicle with this mod. ( follow the directions, this includes step one! )

Vehicle Information:

2006 Chevrolet Colorado, Z71, Crew Cab

Tool Needed:

1.Wire Cutters/scissors
2. Electrical Tape
3.Key to the truck

Cost: $0.25

****Pre How to warning****

This will disable the factory ignition security! I recommend getting an aftermarket security system to help protect your truck in case of an attempted theft.

What does this solve?

Any and all no start issue directly related to the passlock II system.


Step One: Start the truck, leaving it in park, and running during this process.


Step Two: Locate the plug pictured below, The plug is under the dash near the steering column. Open your driver door and stick your head on the floor near the gas and brake pedal and look up, it will be the big white plug staring you in the face. If you need anymore help let me know. You will notice that on the side closest to the front seats, the plug is pretty much split in two. We will be working with the right side of this plug. We are looking for the wire that is White with a BLUE stripe. It will be with other wires that are white/colored stripe.



Step Thee: Cut this wire in half, and electrical tape both ends.



Step four: Shut off the truck, You’re done!

Try restarting it, you will see the red security light on, but that can be removed with the LED mod how to.
http://coloradofans.com/forums/67-technical-questions-tips-how/103478-how-custom-gauge-lighting-leds-w-video.html



This can also be done using this Bypass (this is what is done on my 2007 Cobalt ss/sc for the remote start/alarm).

 

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Discussion Starter #3
yep, this is more for people that can't disable passlock or vats because they dont have access to hpt.
 

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I cant tell by the picture where that plug is located, can someone help? I'm doing this when I figure out where the plug is, I'm tired of being stranded for ten minutes once or twice a month. Thanks.
 

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Discussion Starter #5
The plug is under the dash near the steering column. Open your driver door and stick your head on the floor near the gas and brake pedal and look up, it will be the big white plug staring you in the face. If you need anymore help let me know
 

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Hey all, first post to this forum as I just bought a 2006 Canyon ext-cab base model with 45K miles on it.

My question: How likely is it that I will encounter Passlock problems? If it is almost certain to happen, I'm gonna cut the stupid white-with-the-blue-stripe wire and have done with it (bearing in mind I'll have to reconnect it if I change the battery later). If many of these trucks never have an issue, I'll leave it until it happens (knowing that Murphy's Law will probably dictate that I'll be in a crappy neighborhood after dark, or running late for work, or some such, when it does).

Anybody care to weigh in on the probability of Passlock screwing me?
 

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As for failure... beats me. I have an '05 Z71 4x4 crew cab with 110k on the clock and the only problems I am having is the drivers window is jerky when I try to raise it and the blower doesn't work on 1-3. And as of this post, I haven't seen or heard of any problems with the passlock. So it's your call.
 

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I don't know how common of a problem it is but mine acted up at around 28k miles. Wish I had read this first spent $300 at the dealership (stranded out of town of course) for a new ignition module.
2006 LT Regular Cab
3.5 auto 2wd
 

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OK, so that's one "didn't happen" and one "happened to me, early on" ... Please keep replying if you have experience with this problem, but so far, the impression I'm getting is that it's quite possible I'll never have to deal with this. So, I plan to keep rolling as is until it screws up, then start the truck using the ten- or thirty-minute procedure and cut the dang wire. Thanks for the help so far!
 

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What would happen if the truck is not running when you do this? For example, the passlock f's up. Truck won't start. So I get under there and snip the wire.
 

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@elg3

I have this problem too. On my 2004 Chevy Colorado 75K miles.

Does anyone know if cutting this wire and thereby having the light on the dash stay on cause any problems when trying to get an inspection?
 

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I appear to be having an issue with the passlock on my 2005 Colorado I4. For the longest time, I didn't know why my truck wouldn't start. I cleaned my battery terminals, replaced my fuel filter, and added fuel cleaning agents but with no success. I've even taken the truck to a shop that had the truck for weeks but couldn't get the problem to occur. The problem likes to happen when I'm driving it in far off places or at the gas station.

Thankfully, I paid attention to the dash lights and noticed the security light flashing. I immediately came here to check and sure enough, the problem was experienced elsewhere. I would like to get it corrected the right way instead of just cutting the wire. If the repair costs too much, I'm going to cut that wire.
 

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I had a compu star remote started put in the truck 2 years ago, I have a 2005 GMC Canyon Vortec 3500, and just recently the trucks passlock is acting up like every week! Leaving me stranded for the 5-10 min thing. posting.php?mode=reply&f=8&t=84432#

I know there was a bypass module put in when the remote start was installed at future shop not sure what the make is.

Do you guys know if my problem could be due to the bypass f#@n up or the key-ignition on the truck? Any help would be great, I will keep searching the forms as well.

I may have to get this fixed asap for work, I'm just not sure if i should take it to the dealer or future shop.

Cheers
 

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In light of a recent How To for passlock problems I am reviving this thread and stating that my 04 I5 Z71 with 96K is acting up pass lock related and wondering if this is a wise fix to the problem as it is obviously cheaper and quicker fix. Also jeffnichols not to question your ability but are you sure you did the fix correctly? If so does anyone know why the problem would still occur if the wire was cut?
 

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Also can PCM4Less do anything to disable the passlock system..As I am looking to get a tune sometime soon so I'll go ahead and order one if it'll fix my problem
 

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Just did it to my 2006 colorado and is working just like author said, but be careful in the low light the stripped green/white wire looks exactly like the stripped blue/white wire. Wish I could buy you a beer in gratitude.
 

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Your suggested fix worked!!!

I too was having starting problems, apparently due to the passlock. My truck which is a 2006 Colorado, 4cyl, 5 spd, would randomly not start. After waiting 10 minutes it finally would start. I started to search the internet and ran across this post. As I read over it, I kept thinking, "this is too simple, too easy. What is the catch? Does this guy know what he is talking about?" Well come to find out he does!! After much hand wringing, I snipped the wire. My truck has not failed to start since. Yes, your light does glow on the dashboard but hey, that is better than a several hundred dollar trip to the dealer.

One final thing. Where do you find the LED mod how to?

Noximus, thanks for your fix!!!
 

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My Colorado has done this everyday ! for 2 weeks. I have changed the battery, the fuel pump, plugs,boots, fuel filter and cleaned the MASS.... STILL DOING IT ! ! ! Im trying this today... THANK YOU......
 
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