Disabling Security System on HHR
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=70989
Printed Date: April 27, 2024 at 6:29 PM
Topic: Disabling Security System on HHR
Posted By: malcyor
Subject: Disabling Security System on HHR
Date Posted: January 17, 2006 at 5:49 PM
What if I just flat don't want to worry about an RFID chip going bad, or any of that? I like the car, but wish it were just a CAR, and not thinking for me =0) Is there a way to completely disable the whole damn thing? And NO, I don't want to tape a key near the RFID Antenna.
Replies:
Posted By: sparkie
Date Posted: January 17, 2006 at 7:58 PM
You can't disable the theft system in the HHR. It may only be a factory system, but at least its better than nothing.
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sparky
Posted By: malcyor
Date Posted: January 17, 2006 at 8:12 PM
sparkie wrote:
You can't disable the theft system in the HHR.
CAN'T!!!!!!!! CAN'T!!!!!!!! Don't give me Can't =0)
Posted By: malcyor
Date Posted: January 17, 2006 at 8:39 PM
sparkie wrote:
You can't disable the theft system in the HHR. It may only be a factory system, but at least its better than nothing.
Upon furhter research, probably a DAMN SIGHT better than nothing, below is a portion of the text of the PATENT Before the
vehicle can be operated, the key's electrical code must be recognized
and properly decoded by the PASSKey III+ control module. The ignition
key will contain electronics molded into the head of the key. The
device's electronics receive energy from the control module, and upon
receipt of the data, the key will calculate a response to the data
using secret information and an internal encryption algorithm. The
response will then be transmitted back to the vehicle.
The controller module translates the radio frequency signal
received from the key into a digital signal and compares the received
response to an internally calculated value. If the values match, the
key is recognized as valid, and a vehicle security password (one of
65,534), is transmitted through a serial data link to the engine
control module to enable fuel and starting of the vehicle. If an
invalid key code is received, the PASSKey III+ controller module will
send a disable password to the engine control module through the serial
data bus, and starting, ignition and fuel will be inhibited. In the
event the engine control module does not receive a password signal from
the PASSKey III+ controller, engine operation will remain inhibited.
GM also stated that the PASSKey III+ device has the capability of
producing billions of codes, requiring centuries for someone to scan
through them to allow theft of a vehicle.
Posted By: auex
Date Posted: January 17, 2006 at 9:00 PM
You want to disable? Rewire entire vehicle to work off of an independent computer and relays. Of course if you need to be smogged you will fail (obd2)and the car will be worthless in a couple of years. If you main concern is the key then go buy 70's chevy pickup.
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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: Montrealler
Date Posted: January 17, 2006 at 11:05 PM
Any other easy question like those ? Use the bypass from bypasskit.com hook the brown wire on the negative (-) key sense and go tell every thieves how to override this system. Also you can now use regular key blank.
Too Easy !
Posted By: jacqueslacombe
Date Posted: January 18, 2006 at 4:32 AM
HI Montrealller is right
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cocolaboy
Posted By: Chris Luongo
Date Posted: January 18, 2006 at 9:01 AM
Montrealler is right with most cars, but the HHR does not have a tradional keysense wire-----there is one wire that does different things at different times, which serves up all the following functions: keysense, Accessory, Run, and Start.
That particular wire will go to 12 volts positive when a key is inserted, but as soon as you move the key forward it goes away and does different things.
You could put one of the original keys in a bypass box, and have it triggered by the car's regular + ignition wire.
But then, if you tried to start the car with another original key, the car would "see" two keys at once, and probably won't start.
It might be possible to find the correct style of key, but without a transponder inside....have some of those cut to fit the car, and again, plant one original key in a bypass box as mentioned above.
But anyway, transponder-key systems are very good at preventing theft, and they are also very reliable from the customer's point of view. I see little reason to disable it.
(Also, the methods above would not make the car any more reliable anyway. The key in the box, or the other part of the system in the factory ignition switch, are just as likely to fail as they were before.)
Posted By: malcyor
Date Posted: January 18, 2006 at 7:17 PM
Thanks for the Helpful Replies, and a pox upon the smart mouthed ones. I don't live in an area where auto theft is much of an issue, and I have insurance, so who cares =0)
Posted By: sparkie
Date Posted: January 18, 2006 at 8:23 PM
Thats what everybody thinks until it happens to them. If you want red tape and hassels, try dealing with your insurance company after it gets stolen.
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sparky
Posted By: KarTuneMan
Date Posted: January 19, 2006 at 10:07 PM
Astro IM-GMSD-1 controls all door lock functions and sliding doors (if applicable) and controls factory security
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