Cloning Key Fob for Keyless Entry/Push Ignition

Flippant on 12/09/2025 - 13:28
Last edited 12/09/2025 - 14:07 by 1 other user

Been ringing around Dunedin all morning getting quotes to get the keyless entry/start/immobilizer fob for my 2007 Corolla Fielder cloned so I can have a spare, so far the lowest I've been quoted is $380 with a new fob or $199 if I provide the fob myself.

Looking at the model number of the board inside my fob (271451-0500) I can get a 2nd hand replacement locally for $120 that's been wiped ready for reprogramming, or there are new ones online anywhere from $50 - $80 like this one https://www.aliexpress.com/item/1005003500200521.html

And then I saw this reprogramming tool for $170 https://www.aliexpress.com/item/1005004655156792.html which lists the chip on the board (4D-67) as being both identifiable and cloneable, which I take to mean that I can use this to clone my existing key onto a compatible blank one, so that's what I'm thinking of doing.

Am I correct in thinking that all I need are the key and tool that I've listed above, or are there other things needed as well? I know I'm only saving around $30 if I go ahead with this, but I don't really want to pay $200 for someone to spend 20 minutes reprogramming my key if I can do it myself and save a few bucks in the process and also get myself a new piece of equipment out of it to play with as well.

Any advice from people who know what they're talking about would be much appreciated.

Cheers

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  • LupinS on 13/09/2025 - 09:47
    +1

    Cloning keys is the worse way to get it done. And unsecure
    You really need to have the car programmed to accept the new key.

    Which is also easy enough for anyone with the right tool. So double check what is actually being done.

    And also check you can't just programme a new key in car (but would usually require you to have two working keys)

    Also be aware that a lot of the car stuff like this you buy off Ali is very model dependant, doesn't necessarily work, doesn't come with instructions, or can require much more technical knowledge than they like to let on (to the point of being un useable).

    There are also heaps of forums that deal with this topic. Digital Kaos being the most obvious one. Ask there.

  • kiwijunglist on 13/09/2025 - 10:42
    +1

    I had success cloning the transponder chip key using an AliExpress cloner that i borrowed from someone.

    I then programmed a new remote using the a sequence of turning the key in the lock and opening and closing the doors.

    NZ Mazda 2. Not keyless entry/push ignition*

    • Flippant on 13/09/2025 - 14:45

      Cool, thanks for that. I'm not too worried about the lock/unlock buttons working on the remote as I'm guessing the proximity chip should unlock and lock the vehicle automatically when I enter or leave the vehicle, I just may not be able to do it manually using the remote, and if worse comes to worse I can just use the physical key inside the fob to unlock the door and then turn on central locking when I exit, so not a huge problem, it's only going to be a spare anyway, so as long as it disables the immobilizer and lets me drive the vehicle then that's good enough for me.

  • Drcspy on 13/09/2025 - 07:31

    Sorry I don't have any specifics - just a couple of thoughts. Have you looked at reviews for this unit ? Are returns easy if it fails or is unsuitable ? And on the upside if it does work - well maybe you could become the local expert lol and make your investment back ?

  • jackvdbuk on 13/09/2025 - 08:32

    There's a place in hibiscus coast that do this and were cheaper than most

    The issue with aliexpress is you might be fine but you might also risk 200 bucks and still not have a working key which I couldn't risk myself ..

  • Joshyss on 14/09/2025 - 16:32

    Wouldn’t mind knowing this myself as the wife has misplaced one of the two for our car.

  • coffeee on 14/09/2025 - 22:19

    i got my toyota done for $200 in auckland
    the guy duplicated the fob and took the lock out of the car and made the key.

  • felixfurtak on 14/09/2025 - 23:42

    I have a 2017 Prius Alpha (JAP Import) with keyless entry that came with only one key. I successfully cloned it by the following method. I bought Mini Vci For Toyota TIS Techstream V18.00.008 FTDI FT232RL OBD2 Diagnostic Cable from Aliexpress for about NZ$30 and a toyota key from Aliexpress (271451-5300) for around NZ$35.

    The cable seller gave me a download link for a fairly old version of Tech stream and I found a few YouTube videos of varying quality on how to clone it.

    From memory, you basically have to run techstream, hold the existing key up to the push start button and then copy it, the hold the new key to it and it is cloned. Was a fairly cheap and easy process (~$60 all up) but needs a bit of research. Make sure you get the right key type. Get 'new unprogrammed' one from Ali as they are apparently easier to program the used ones. Different countries use different RF frequencies so you need to get the same type as the one you currently have if you want to be sure.

    Watch out for malware on dodgy Tech stream software. I used a virtual Win 10 machine with USB pass through (in virtual box) just in case.

    EDIT. I just read the other comments and remembered, yes your not cloning the key but teaching the car the new key. There are only so many 'spaces' in the cars memory and when I ran techstream it seemed to have about 5 keys programed into it (but I only had one key) so I had to delete one to make space for it. This was a bit of a gamble since there was a risk of deleting the only key that I had, so I left all the others in there. So it's safer to leave any existing keys programmed if you can.

    https://www.aliexpress.com/item/1005004062584214.html

    https://www.aliexpress.com/item/1005005620060826.html (not your key, but the type I used)

    Could possibly look out the link for the software too if you pm me)

    • felixfurtak on 15/09/2025 - 09:41

      The seller I used also sells your 271451-0500 key type (just select the right one in the listing) https://www.aliexpress.com/item/1005009293668979.html for a bit cheaper than the one you identified.

    • Alan6984 on 15/09/2025 - 10:06

      There are only so many 'spaces' in the cars memory and when I ran techstream it seemed to have about 5 keys programed into it (but I only had one key) so I had to delete one to make space for it. This was a bit of a gamble since there was a risk of deleting the only key that I had, so I left all the others in there. So it's safer to leave any existing keys programmed if you can.

      Could you positively identify the new key (in the car's 'memory'), that you had just authorised, after you went through the process? That might be possible if they authorised keys all had some kind of unique identifier when they were listed.

      If so, I guess you could, if so inclined, do that, check it is working okay, then delete all the other pre-existing authorised keys, then re-authorise the 'original' key that you got when you acquired the car?

      • felixfurtak on 15/09/2025 - 10:20

        Yes, if there's space you just add the new key and then, once you have verified that it is working, you can delete the old stale keys and I think then re-pair the original one.

        The problem comes when there isn't space to add the new key since you have to work out which is the active key out amongst the stale ones. I just decided to do a Russian roulette and delete a random one in the hope that it's not the active one (it was something like a 1 in 5 chance). There's probably some more sensible way of doing this, but I seem to remember I managed to figure out which one was most likely the active one somehow, so my 'guess' wasn't entirely 'random'. Forums would probably help if you're in this position.

        It's also worth making a note of the key that you just added in case you have to do the same think again in the future.

        If you want a physical spare key you also have to get the blank key that comes with it cut too. I cut mine with a Dremel and a needle file (it took about an hour) doing it slowly and trying it in the lock frequently. But Mr. Minit is probably the better option of you aren't confident in this.

        • Alan6984 on 15/09/2025 - 11:43

          Cool - thanks!

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