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#81 (permalink) Old 01-14-2013, 12:19 PM
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Originally Posted by pico View Post
Most excellent news. Thanks.

A couple university researchers worked around the earlier key with ease using a not-so-clever relay system.
Not mechanical relays. Digital signature transponder - Wikipedia, the free encyclopedia has the short version of that crack, and the long version is linked to in the references. You can buy O keys cloned from your key at many Ace Hardware stores today. I don't think that is the case for G keys.

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#82 (permalink) Old 01-14-2013, 03:05 PM
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ok, so from what I'm gathering, as long as the key blank is cut to specifications, it should be fine.

Once I have the key blank cut, I just need to buy a new transponder, and immobilizer. To get a complete key.

Then the next step is to program it with techstream or bring it to a locksmith.

Am I correct so far?

So, for transponder, I need to buy the G stamped used keys to get the transponder...

How about the immobilizers? I have the 2012 RAV4 Sport V6 AWD. What do I look for to get the right chip?
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#83 (permalink) Old 01-14-2013, 03:10 PM
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Originally Posted by pdragon79 View Post
ok, so from what I'm gathering, as long as the key blank is cut to specifications, it should be fine.

Once I have the key blank cut, I just need to buy a new transponder, and immobilizer. To get a complete key.

Then the next step is to program it with techstream or bring it to a locksmith.

Am I correct so far?

So, for transponder, I need to buy the G stamped used keys to get the transponder...

How about the immobilizers? I have the 2012 RAV4 Sport V6 AWD. What do I look for to get the right chip?

immobilizer you need a G key. transponder you need a key with the same FCC ID (you can find that on your existing key)
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#84 (permalink) Old 01-14-2013, 03:14 PM
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You do not buy a separate immobilizer. That is a function of the computer that you are programing with the TechStream. You do need the security chip (transponder). I don't know if you can use a chip that was previously used in a different car.

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#85 (permalink) Old 01-14-2013, 03:37 PM
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You are using the wrong terminology. The transponder chip and immobilizer chip are two names for the same thing. What you need is a "G" type chip and a keyless remote transmitter with the same FCC ID code as the one you now have. That, and a correctly cut key blade and you're all set. And yes, a used chip can easily be programmed to your car.

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#86 (permalink) Old 01-14-2013, 03:50 PM
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Originally Posted by pdragon79 View Post
ok, so from what I'm gathering, as long as the key blank is cut to specifications, it should be fine.
If you cut the proper teeth into the blank, the engine will crank over but the engine will not start.

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Originally Posted by pdragon79 View Post
Once I have the key blank cut, I just need to buy a new transponder, and immobilizer. To get a complete key.
The immobilizer is part of the RAV4. It is looking for a properly coded signal from the RFID Chip (transponder) before it will allow the cranking engine to start-up.

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Originally Posted by pdragon79 View Post
Then the next step is to program it with techstream or bring it to a locksmith.
That is the process that tells your immobilizer to accept the code that it is currently receiving from a nearby transponder.

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Originally Posted by pdragon79 View Post
So, for transponder, I need to buy the G stamped used keys to get the transponder...
Because that "G" version of the transponder speaks the language that your immobilizer can understand.

The final part of a key, is the module that contains the buttons for locking/unlocking the doors. Just like the transponder, this unit talks on a particular frequency and modulation type to your RAV4. In this case the FCC number is used to make sure the key can communicate with your RAV. The RAV must also be programmed to accept the code being transmitted by the new key-less entry transmitters.

Rather than thinking that the key must be programmed to work with the RAV, you have to think that the RAV must be programmed to accept and trust the key.

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#87 (permalink) Old 01-14-2013, 04:08 PM
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Originally Posted by JuneBug View Post
You are using the wrong terminology. The transponder chip and immobilizer chip are two names for the same thing. What you need is a "G" type chip and a keyless remote transmitter with the same FCC ID code as the one you now have. That, and a correctly cut key blade and you're all set. And yes, a used chip can easily be programmed to your car.
Thanks!

This clears up a bit.

So... I should go online, ebay, and look for a used key with FCCID: HYQ12BDC

and it will have all the parts I need to move it into the flip key.

then I used techstream to add the key to the RAV4 for it to be recognized.

Just trying to make sure before I go and buy stuff.
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#88 (permalink) Old 01-14-2013, 04:25 PM
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Quote:
Originally Posted by pdragon79 View Post
Thanks!

This clears up a bit.

So... I should go online, ebay, and look for a used key with FCCID: HYQ12BDC

and it will have all the parts I need to move it into the flip key.

then I used techstream to add the key to the RAV4 for it to be recognized.

Just trying to make sure before I go and buy stuff.
Correct, but be careful. There are some keys out there that have the HYQ12BDC remote transmitter but DON'T have the G on the blade. In that case, the remote would work but the transponder chip would not. The Ebay listings don't always show a picture of the back side of the key blade where the dot or G is stamped.

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#89 (permalink) Old 01-14-2013, 04:30 PM
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Quote:
Originally Posted by JuneBug View Post
Correct, but be careful. There are some keys out there that have the HYQ12BDC remote transmitter but DON'T have the G on the blade. In that case, the remote would work but the transponder chip would not. The Ebay listings don't always show a picture of the back side of the key blade where the dot or G is stamped.

Darn it!. I jumped the gun a bit.

I found this:
2007 2010 Toyota HYQ12BDC 3 Button Keyed Fob Corolla RAV4 Avalon | eBay

i looked at the title, and picture, it looks like what I needed.


The box where it has item specifics listed things differently, and right under that it states that "a dot" is needed to be compatible.

Did I just bought the wrong item!
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#90 (permalink) Old 01-14-2013, 04:55 PM
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[IMG][/IMG]
Quote:
Originally Posted by JuneBug View Post
Correct, but be careful. There are some keys out there that have the HYQ12BDC remote transmitter but DON'T have the G on the blade. In that case, the remote would work but the transponder chip would not. The Ebay listings don't always show a picture of the back side of the key blade where the dot or G is stamped.
yup... that's exactly what I did



Also, if you want instructions, one of the vendors sent me this:

[IMG][/IMG]
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