Prius key not working after replacing fob (plastic case)

By small black chip you mean the rectangle shaped thing at the end of the FOB, right?

 

It might be possible that something on the circuit board is broken so that it still reacts (lights the red LED) when you push a button, but it's unable to transmit to the car. Do you have a second fob to confirm that the SKS system on the car still works properly?

Posted via the PriusChat mobile app.

 

Buy a new key from eBay and use the old one to program it?
Costs US$100 on eBay
So long as the old key starts the car by inserting it in dash, I think it can be used to program a new one.

 

Can you try this?

 

No, the chicken dance requires that the electronic board part of the fob to work. Hopefully you can get your fob repaired. Might want to call a couple locksmiths and explain then see what they can do.

Posted via the PriusChat mobile app.

 

I seem to recall that there are taxi companies in Bucharest that use Prius cars. Why not contact one of them and ask how they get their keys fixed?

 

Toyota Prius repair in Bucharest
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Hybrid Service – Servicii pentru autoturisme hybrid, baterii hybrid, Nimh (Nichel Metal Hibrid), testare meganica, revizii, incarcare freon in Sector 3, Bucuresti.

 

yes, the problem is complicated by having only one key. When you get your key fixed, I suggest you get another one also at that time so in the future when you have a problem it is easier to fix.

 

If Toyota did say that then they are the stupid ones. As long as you have a fully functioning key, you can add another new key (and $250 sounds quite reasonable for this — the new key alone is $120–$160) and it will be fully functioning. If you do not have at least one fully functioning key, then a new key can be added (and I would recommend that all others are deleted) however, that will cost a lot more.

 

Agree. Moreover sometimes one has to bite the bullet and pay the dealer to do the work. The couple of hundred dollars is just what it costs.

 

With this key system it is best to keep one good remote locked away and just use a spare. It's the worst smart key system Toyota has used.

 

Whoever at the stealership told you that they couldn't make the SKS work, is clueless! If you can put TechStream on an old laptop and get an OBD2 compatible cable from eBay or elsewhere following one of the many online guides for doing so, you can program it yourself. You can add a new SKS fob easily, or slightly less easily, add another used SKS fob by following directions for "lost all keys" reprogramming. Sounds like you need to go to another dealer or find a good local hybrid mechanic shop that can do the work if you choose not to do it yourself.

 

The OP is effectively "all keys lost" & so would need a working Techstream PLUS a code to reseed the certification ecu (available from a sketchy site somewhere in Europe?). Add in a couple fobs and that's still several hundred dollars. Don't know what the OP's tech level is.

OR the OP goes to a competent locksmith. OR a dealer.

Posted via the PriusChat mobile app.

 

I purchased a "token" from ericbecy here on PriusChat using PayPal a few days ago, he is from Wisconsin, and has a hybrid car repair shop. I did have to go to that site in Europe to have the calculation done to get the passcode (enter VIN, token, and 96 digit seed number that you downloaded from the car via TechStream). Went to this site to do the free calculator function with the token I got from Eric. < https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.weboctopus.nl%2Flexus-scion-toyota-pass-code-by-seed-code-calculator.php%3Ffbclid%3DIwAR1lb3gLqxfeL4ZXO_K_h_gRVo96p0rz2H-SGfGLhNRNsR6GnVyAXyDrdTU&h=AT09kfkEImPuzgb_qpp3LJgx01QzkfUx4a17g1Am0AoEqDJlOONShgm7O0sPL03zrVObu-MMFN9VuIUwNy8MyB8Ak4xFcm5mGgYChhVfkNQ2owZFXXSemMpA93yYceG5ojY>

 

Did you ever get any resolution on this? I've run into a similar issue. Had a working, yet knackered key fob. Decided to replace the housing. Watched a tutorial video, ordered the case, it arrived, and I set about carefully dissembling the old case in order to install the electronic guts into the new case. All went fine, didn't forget the RFID chip, even swapped over the battery hatch gasket and the information sticker. And then nothing. The light on the fob lights up, corresponding to hitting the buttons, but the car doors won't lock or unlock. And after you open the door with the conventional key, the car doesn't recognize the proximity of the fob and thus you have to plug the fob into the receptacle in order to start the car. So I effectively have a brick for a remote. Really flummoxed as to what could have gone wrong.

I am curious though, how does the RFID work in conjunction with the circuit board? Does the RFID chip have to touch/make contact with the circuit board? Is it anything at all like that, or nothing at all? Because that's the only conclusion I could come to, that there's a slight dimensional difference in the new parts and when the new case is reassembled, the circuit board and the RFID chip are just slightly out of contact. I did try to shim the RFID chip to insure it touched the circuit board but it didn't change the situation in the end. The lights lit on the fob when the buttons were pushed but the car didn't unlock.

So ultimately the only conclusion I came to is that there's a high inherent risk in messing something up when dissembling the old remote to replace the case, in spite exercising care and caution.