2008 Keyfob

some say seal it in a bag of rice, i might try a hairdryer.

 

You can't use a non-sks (black) fob in place of sks (silver).

You can get new/virginized fobs off eBay or many online key fob retailers for less than the dealer price.

Sorry, I don't have any specific recommendations.

 

Likely the $56 is not virgin. Go for the $161. Sometimes, you just need to spend a bit more to make your life easier. It doesn’t always have to be about money.

Also, for $161, you should be able to get a genuine OEM from an online dealer. Some online dealers have a presence on amazon.

Back to your original fob, try blowing the button contacts out with dry compressed air.

 

I haven't pulled an SKS key apart, but have done so with a normal key.

In the normal key it's just a piece of carbon to function as the immobiliser chip and the circuit board for the remote locking.

As nothing changes in a normal key, it can be programmed to run multiple cars.

What is there in the SKS chip that gets altered or written to?

 

It is not just a piece of carbon (although that is what it looks like), it is an RFID chip that gets linked to the immobiliser when it is paired with the car. As it is an RFID chip, it needs no external power source because it gets its power by proximity induction, the same way as chipped credit cards or transit cards do.

And yes, the SKS key has the same RFID chip, which is why you can pair either type of key to either type of car and it will work for the flat-key-fob battery/key-in-the-slot scenario. But not really a good solution, if you have SKS.

 

The car has a number called the "Car ID" which is written to a chip on the SKS circuit board the first time it is registered on the car. Once a SKS keyfob is registered, it can respond to the car with the proper Car ID, but not to any other. A previously registered SKS keyfob can be registered to a different car by doing a seed reset of the car, a procedure normally only available to dealers and locksmiths. There are places on the internet where you can purchase a seed reset number for about $35.

 

You can buy directly online from several Toyota dealers, the advantage is that you give your VIN when ordering and they will verify that you ordered the correct part. I have used McGeorge Toyota parts online several times and they currently show a 2008 key fob for $126 (plus shipping) Transmitter - Toyota (89904-47011), better than the price you are seeing. (I ordered a fob for my Gen 3, shipping was <$10)

 

a lot more. tell her.

 

congrats!

 

The cheapest option I've found to make up a bare minimum key was to buy a chip and casing from China via AliExpress.

Chip (4D67): 4D67 Transponder Chip For Toyota and Lexus P28-in Car Key from Automobiles &amp; Motorcycles on Aliexpress.com | Alibaba Group

Casing (with key blade): KEYYOU 2 BUTTON REMOTE KEY CASE FOR TOYOTA PRIUS COROLLA VERSO TOY43 BLADE-in Car Key from Automobiles &amp; Motorcycles on Aliexpress.com | Alibaba Group

That particular casing is of lower quality than the Toyota one, but will do the job as a spare. Better quality casings can be found.

I've put those chips and casings together and used them to start Priuses.

However, I haven't found a solution for getting the circuit board that operates the central locking.

US and Canada car remotes operate at 315MHz, whereas for the rest of the world it's 434MHz.

Here in Australia Toyota charges $A312.40 for a normal key fob and $A380.60 for an SKS one.

I haven't found any suitable aftermarket key fob options for Australian Priuses.

 

Actually, you don't even need a case. Tape the chip to the end of a pencil (not the eraser end because of the metal). Then place it on the bottom of the keyslot and press POWER. Remove the chip. To turn the car OFF, press POWER and press your finger into the keyslot to release the locking mechanism.

Or get a Toyota chipkey, and replace the chip with the 4D67 one. Copy the mini-key onto the chipkey for door access. Insert the key head first into the keyslot to start. Again, you'll still have to unlock the keyslot by pressing something against the back of it after powering OFF.

I've done all this with a chip liberated from a used keyfob, but if this chip actually works, it's cheaper.

 

I didn't feel like starting a New Thread...here is a question:

I need Another complete Key Fob for my 08 Prius. I can programmed the key at my friends place. He got Tools/Scanners.

I am seeing following options.

1. New complete Aftermarket Keyfob for $69.95. (eBay item number: 361970358543)
OR
2. Used OEM Complete keyfob for $59. (eBay item number:143075748010)

Please advise. thx in advance!

 

Option 3, NEW OEM factory keyfob so you can program it without any special tools/codes

 

Forget the rice...it will NOT remove moisture!
That trick was floated years ago during the early cellphone craze.
Disassemble fully, soak in denatured alcohol, completely dry everything.
Switches and carbon impregnated buttons should be wiped with denatured alcohol as well, then dried with a soft towel.
LiIon battery cells (coin), are cheap, replace it.
Ensure NO corrosion is on any metal surface, but you can use a pencil eraser to rub the bare metal to a shine, removing oxide components from it.
Keep the fob dry, and there should be no problems for you..

Safe travels!