Successful SKS Reset using Mangoose cable and used Keyfob registration

Awesome write-up! - be prepared to get slammed with the info requests, lol

Great job!

EVO ? 2

 

Wow... Thanks so much for saving so many of us a buncha money....

Is this the solution I've been waiting for?

Will this work for Gen2 Prius too?

Can you post the links to the threads you read that helped you most?

I also hope others who find this thread and try it can let us know if their efforts were also successful?

PriusChat saves us all so much money!

I love this place!

Maybe I just crossed yet another thing off the list that I thought I had to take my car in for...

 

Can you provide more details on the 64-bit issue with Techstream and how you solved it?

 

64bit problems are specific to running Techstream software, there are lots of threads on PriusChat that make mention of it... And for me personally 64bit problems are way too central in my life right now, I'm going crazy with win7 64bit configuration issues. I think I'll use my 32bit computer when I get my techstream software!

 

Have others tried this and had success?

What's the risk of "bricking" the car when doing SKS reset with a new seed value?
If the new passcode doesn't work, does it just revert to the old one, and the old key still works?

I have jailbroken/rooted phones etc, but it's one thing to brick a $200 phone, don't want to break a $20000 car...

Also, does anyone have any clues on more info as to what Sigmabit is providing? I mean, it's just some math/hashing algorithm or whatever, that they happenned to get ahold of. Seems like others must know what they're doing... we should be able to replicate the key generation.... (I know, for $25 bucks, it's cheap enough, but I would be interested in knowing how it works...)

 

This worked very nicely.
I got used fob for $37
this cable Wholesale Product Snapshot Product name is High quality v8.00.034 mini vci for toyota tis techstream for all the diagnostic communication protocols with free shipping it have 1.41 firmware
installed latest Techstream on win7 32bit laptop
and paid 28$ for the passcode Calculation of Passcode for Toyota, Lexus, Scion vehicles

After reset when registering keys use the last option that you replace ecu and did reset
and start with the used key first.

 

MisterLas,
h00ktern,
Simonak,

Guys, hello!

I know this thread is a little bit old, but I have a question about SKS resetting.

What is unclear from your posts is what happens after SKS is reseted?
I have ONLY ONE key. I can start the car but unfortunately remote functions doesn't work. It seems like SKS doesn't recognize my key.

I do have an installed Techstream and VCI cable.
So my question is: after inserting the key, starting the car, running the Techstream and reseting the SKS can I add/register my current key (which is already inserted into the car)?

Thanks in advance,
and happy holidays.

 

Short answer, yes.

However, there should be no reason to reset the SKS ECU. A *seed reset* is only required for specific situations, and what you describe is not one of them.

Another caveat is that not all chi-com clone "Mangoose" cables are created equally - as fully functioning as the official *Mongoose* cable, supported by Toyota... I purchased one and it would not perform as MisterLas' did. In fact, up to that point, I had only heard of one person having a fully functioning cable, useful for SKS procedures (and never verifiable.)

I would first replace the battery in your fob. If that does nothing, simply *erase* all fobs (de-register all fobs,) and then re-register your existing fob, with the new battery. Erasing a working fob does not preclude re-registering it afterwards i.e. a working, paired fob will be accepted, even without a seed reset.

Finally, it almost sounds like you have a pre-Gen3 Prius. What year is your vehicle? Reading your description, excluding a faulty fob as the culprit, almost sounds suspiciously similar to a failed "chicken dance" on a Gen2, but I can't say for sure since my experience is Gen3.

Safe trips



EVO ?

 

Yes, I know

Battery is fine. And I doubt about erasing all keys and re-registering them. It seems like I don't have a master key, which is necessary according to the Techstream (as far as I understand I have to push lock/unlock buttons on the master key and on the other key in order to add the last one). Thats why, I guess, SKS should be reseted and then may be I can register my key as the master key...

Yes, I have Gen2 Prius purchased from NA.
Somewhere, around this forum I believe, I saw a thread about Gen2 and reprogramming key with a Techstream, but I failed to find it, so I posted my question here ...
Sorry for any inconvenience, and thanks for some clarifications!

Best regards,
cyb.

 

Confirmed.

 

I have no experience with gen2 but what would I do is get another used fob and then try do the whole reset.
That if the one you have is faulty you will ended up with at least 1 fully working.

 

Also as hooktern said you can try remove all fobs and try re register the one you have.
This dosnt require the whole reset because your key was registered in your SKS already.

 

I have just brought a used key on ebay. My used key fails to be registered when it tells me to put it in the passenger seat. I have tried both the classic and smart code registration features on my techstream. Should I try to reset the SKS?

 

I have the same issue as Wes, but bought a new fob. My old and new are ACX.
Any help appreciated.
Ron

 

I just sent for a pass code. I'll try an SKS reset as described above and update.