06 GMC Passlock

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=72510
Printed Date: May 03, 2025 at 7:05 AM

Topic: 06 GMC Passlock

Posted By: tk064
Subject: 06 GMC Passlock
Date Posted: February 09, 2006 at 1:41 PM

Probably a dumb question, but If I can make a .99 key copy that starts the motor (06 GMC) would I have passlock?

Thanks

Replies:

Posted By: kaezoo
Date Posted: February 09, 2006 at 2:07 PM

Yes. Passlock is a resistance system built into the key switch. It uses an ordinary key.

Posted By: iskidoo
Date Posted: February 09, 2006 at 2:20 PM

Somebody's got money. posted_image

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Steve G

Posted By: tk064
Date Posted: February 09, 2006 at 2:49 PM

Actually stipped company truck that they were too cheap to buy the upgrades. Now I have to do it myself.

Thanks guys

Posted By: iskidoo
Date Posted: February 09, 2006 at 2:53 PM

Well that's actually a good move. They usually charge 3 times the value for the remote starters put in from the dealer. They have a local shop do it for them and then double the price.

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Steve G

Posted By: bigac
Date Posted: February 09, 2006 at 11:07 PM

GM's Passlock system uses a stationary hall effect sensor and a rotating magnet that is built into the ignition lock itself. So when you stick the key in and turn it, the magnet passes over the hall sensor and creates a resistance value that is sent to the computer. If the computer determines the value OK, the car will start. GM uses 10 different resistance values in their ignition locks.

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A little from column A, a little from column B.

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