Lost Keys - 2004 Prius (Reprogamming)

So we’ve stupidly lost all our keys to our 2004 Prius, VIN number starting with JTDKB(Gen 2 - No smart access) I managed to buy some second hand key fobs. From what I can see in these forums my steps are:


1) Buy Mini VCI cable and install Techstream

2) Hook up computer to car and use techstream to generate 96 hex code which I use to get a reseed code?
the end of the "don't lose your keys or else" myth | PriusChat

3) Then reset ECU and erase current fob keys.


My questions are:

- How do I get the reseed code? Can someone on this forum help me with that?

- How do I erase the second hand fob keys, will they be erased when I reprogram?

- Could this process cause major damage to the computer unit in the car?

- Not sure if my car is imported from JAP, will that make a difference?

Any help is greatly appreciated.

 

Thanks very much, ill give that a go but currently:

I've bought the cable and installed techsteam v13-00-022 but I get the unable to connect to VIM error.

My steps were:

1.Connect OB2 cable
2. turn on laptop
3. open techstream
4. clicked connect to vehicle

is this correct?