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Old 07-08-2006, 03:22 AM   #1
Jag32
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Default I figured out how to bypass the immobilizer so 06 STI owners can user the 04 STI key

I really want that 04 key, yeah yeah I know it adds 20whp blah blah but I think it's just damn cool and the 06 key's are incredibly lame.

My idea is to basically take the immobilizer chip out of the key and permanently glue the chip right near where you put the key in, then go buy an 04 style STI key and have it cut, and voila - the immobilizer is always there so you can use any key you want. It's just like the idea of the one guy having two keys on his key ring, the 04 style and 06 one with immobilizer, but my idea is to just take the immobilizer chip itself and permanently affix it there.

The only thing i'd be worried about is the chip somehow coming lose and getting lost and then not being able to start the car which would most definitely suck, so i'd have to find a way to really secure it well.

What do you guys think? Will it work? What's the best way to glue it on there so I wouldn't have to worry about it coming off, what's the best type of glue to use or perhaps there's another way to secure it besides glue?
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Old 07-08-2006, 06:07 AM   #2
jhull
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yes that would work, I have done it with many different vehicles. I normally dont do it unless the customer really wants it done. just get some really good hot glue and it will never come lose.
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Old 07-08-2006, 07:01 AM   #3
Mulder
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This has been done, or at least tried. It was quite a while back so you'll have to do some digging for the thread, I do remember there were pics. I don't recall if it worked or not.
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Old 07-08-2006, 09:48 AM   #4
thedaddyb
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Quote:
Originally Posted by jhull
yes that would work, I have done it with many different vehicles. I normally dont do it unless the customer really wants it done. just get some really good hot glue and it will never come lose.
I've done the same for some customers and friends that didn't want to shell out the cash for another programmed key. usually $100+ dollars from most dealerships.

if you still want to retain your factory immobilizer (recommended)
you may want to look into is the 04/05 sti keys overseas. I know australia, Japan and some other euro countries had the same style key that also had the incorporated transponder chip. if you could get a blank one of those, the dealership could cut and program it for you. but you will probably be spending some serious $$$ when it is all said and done.

personally I wouldn't want to permanently disable a good factory security solution.

another solution for you to retain somewhat of your security is to use a universal transponder interface. like the DEI 556UW. I rigged it in my friends maxima to turn on for remote start, or when the vehicle's keysense wire was energized. so in essense when you put the key in the ignition the UTI would send the transponder signal to the immobilizer to allow the fuel pump to turn on. the one down side is you couldn't use another chipped key to start the car. in many cases it will confuse the system and could cause the loss of a programmed key.
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Old 07-08-2006, 11:46 AM   #5
wrx614
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Quote:
Originally Posted by jhull
yes that would work, I have done it with many different vehicles. I normally dont do it unless the customer really wants it done. just get some really good hot glue and it will never come lose.

What happens if it gets really hot in the car and it falls off? Some sort epoxy would probably work best.
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Old 07-08-2006, 12:28 PM   #6
szeny
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im going to laugh when your car gets jacked with a screwdriver because you had the immobilizer bypassed
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Old 07-08-2006, 02:00 PM   #7
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its SOP for aftermaket alarms w/ remote start to do something like this. Usually you can remove the antenna from around the lock(Looks like large ring) and then glue the transponder from the key in, and stuff the whole thing under the dash.
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Old 07-08-2006, 06:33 PM   #8
02SilvaWagon
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Quote:
Originally Posted by LastResort
its SOP for aftermaket alarms w/ remote start to do something like this. Usually you can remove the antenna from around the lock(Looks like large ring) and then glue the transponder from the key in, and stuff the whole thing under the dash.
Maybe it is SOP at hack shops.

A good shop would install a bypass module that only gets activated when the remote start is activated. The bypass module is then hidden so it can not easily be found by a thief.

If you remove the transponder chip out of your key and glue it to the key ring you better hope the car doesn't get stolen. If the vehicle gets recovered and the insurance company sees what you did, they probably will attempt to deny your insurance claim. It has been done before. Your vehicle has a device that gives you an insurance discount because it is a lot harder to steal. And you want to remove it...so you can have a cool looking key.
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Old 07-08-2006, 06:55 PM   #9
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Quote:
Originally Posted by 02SilvaWagon
Maybe it is SOP at hack shops.

A good shop would install a bypass module that only gets activated when the remote start is activated. The bypass module is then hidden so it can not easily be found by a thief.

If you remove the transponder chip out of your key and glue it to the key ring you better hope the car doesn't get stolen. If the vehicle gets recovered and the insurance company sees what you did, they probably will attempt to deny your insurance claim. It has been done before. Your vehicle has a device that gives you an insurance discount because it is a lot harder to steal. And you want to remove it...so you can have a cool looking key.
No, it's not a hack, but systems get changed and updated all the time, and it sometimes takes companies a while to respond with the correct module, yet Mr million dollars with his brand new Escalade wants his remote start now, today. In fact Clifford had a little box that integrated all the parts so you just stuck the key in and the antenna and stuck it under the dash.
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Old 07-08-2006, 09:38 PM   #10
vipernj
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ive done it as well... a lot of customers with Fords or Hondas dont want to buy a replacement transponder key... so i take the valet key, cut it open and do the same thing... glue the chip near the ring in the column...
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Old 07-08-2006, 09:59 PM   #11
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Quote:
Originally Posted by szeny
im going to laugh when your car gets jacked with a screwdriver because you had the immobilizer bypassed
You should be laughing at all the people that think the "immobilizer" makes their car safe from theft. The factory theft deterrent system is a joke. Takes all of one extra wire to bypass the immobilizer and jump start the car like you normally would without the system. Its just something put on the car to make the masses that dont know any better feel safer about leaving their car parked in public. Anyone with any simple knowledge of 12v DC electrical wiring and a pinout of the immobilizer and ignition would take maybe an extra 5-10 seconds to jump the proper wires and steal the car. You dont even have to be a car theif to know how. There is no foolproof way to completely protect your car from theft, so if the guy wants a nicer looking key, i seriously doubt he has to worry about bypassing the immobilizer system to do so.
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Old 07-08-2006, 10:55 PM   #12
marineosx
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imobilizer are not that big a deal to get around anyway. not when it is like the one that you are talking about. there are usually only several different resistance codes. you can usuually order one of each tape it to what you want to use to act like a key and be good. one way that usually works to send the code to the ignition is to wrap wire around the chip after you pull it out and then take the other end both ends are stripped by the way and wrap the other end aroudn the key cylinder. it is easier than trying to tape or glue the chip to it. does not alway work though. but worth a try.
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Old 07-08-2006, 11:05 PM   #13
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Quote:
Originally Posted by 02SilvaWagon
Maybe it is SOP at hack shops.

A good shop would install a bypass module that only gets activated when the remote start is activated. The bypass module is then hidden so it can not easily be found by a thief.

If you remove the transponder chip out of your key and glue it to the key ring you better hope the car doesn't get stolen. If the vehicle gets recovered and the insurance company sees what you did, they probably will attempt to deny your insurance claim. It has been done before. Your vehicle has a device that gives you an insurance discount because it is a lot harder to steal. And you want to remove it...so you can have a cool looking key.
bypass moduals are not that big of a deal either they are activated by the ignition power so if you send 12vdc down it the code will be transmitted and it is not that hrd to find if an installer does a basic install if you do have someone install it pay them extra if you have to to have them hide the brain somewhere else I had customers ask me to do it all the time when I told them bout it, and if you put remote start in your car or anything that bypasses the imobilizer make your own that you can toggle on and off. the only decent imobilizer is the passlock 2 system that GM makes. the code i stored in the ECU and read through that. and a screwdriver wont work to transfer the code. if you put an alarm in it when you do this your insurance company will not deny your claim.
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Old 07-09-2006, 03:29 AM   #14
Jag32
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Quote:
Originally Posted by vipernj
ive done it as well... a lot of customers with Fords or Hondas dont want to buy a replacement transponder key... so i take the valet key, cut it open and do the same thing... glue the chip near the ring in the column...
What type of glue do you use? Thanks!
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Old 07-09-2006, 03:59 AM   #15
airmanutz
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Quote:
Originally Posted by G3Red04WRX
You should be laughing at all the people that think the "immobilizer" makes their car safe from theft. The factory theft deterrent system is a joke. Takes all of one extra wire to bypass the immobilizer and jump start the car like you normally would without the system. Its just something put on the car to make the masses that dont know any better feel safer about leaving their car parked in public. Anyone with any simple knowledge of 12v DC electrical wiring and a pinout of the immobilizer and ignition would take maybe an extra 5-10 seconds to jump the proper wires and steal the car. You dont even have to be a car theif to know how. There is no foolproof way to completely protect your car from theft, so if the guy wants a nicer looking key, i seriously doubt he has to worry about bypassing the immobilizer system to do so.
True, but everything on a car for theft deterent is exactly that. Why steal a car with a bunch of "worthless security options" when they can steal a car with none? 5-10 seconds extra might be just that little bit to make a thief go to a different car. If I was stealing a car I would think every second counts, and 10 seconds would feel like eternity.

Last edited by airmanutz; 07-09-2006 at 04:05 AM.
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Old 07-09-2006, 10:01 AM   #16
thedaddyb
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Quote:
Originally Posted by marineosx
the only decent imobilizer is the passlock 2 system that GM makes. the code i stored in the ECU and read through that. and a screwdriver wont work to transfer the code.
are you kidding? passlock 2 is a bigger joke than any transponder setup. It is identical to passlock 1 except the resistence isn't in the key, it's in the key cylinder.
if you have a cut key and a voltmeter you can steal any one of them.
I've permanently bypassed a bunch of these for customers as well. especially when they had problems with their passlock systems.

now the new passlock 3 is a bigger step in the right direction. it has the resistance value and a transponder chip. and most of the vehicles don't have a starter wire at the ignition harness.
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Old 07-09-2006, 10:05 AM   #17
jhull
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I never seen something in the car get hot enouph to melt hot glue im sure epoxy would make a strong hold, you can try using some duramix, but its not cheap.
to the people that think bypassing this would make someone steal there car...
for starters there are thefts outs out there that can bypass this. and if it was so hard to do a theft can get inside the car look at the key cylinder see the immobolizer ring and get out of the car, unless you put a banner on your car saying you bypassed the chip they wouldn't know.
556u to keysence.. i have done that also before, but would rather not involve more electronics ect.. i know they are so simple but if somthing was to go wrong with it then the car is stuck.
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