Originally Posted by DaGr8GatsB

Been getting messages from people asking for key programming help. So, I just wanted to post some info to help people that lose their keys and want to program it themselves. So, here's what I found out:

With Techstream, you can program a NEW or USED key fob yourself. However, the key fob must have the same FCC number as the original (ECU compatibility issues).

I used Techstream version 10.10.018, but I think other versions will work as well because the guy in the youtube video linked below is using version 8.11.06.

https://www.youtube.com/watch?v=FmY-yBvYCvg

The video is a tutorial on how to access the key programming menus and reprogramming the key.

Here is the link to the latest version of the Techstream (version 10.20.030):

http://www.toyota-tech.eu/GTS/Wizard...-Software.aspx

Please note that the MVCI cable usually comes with Techstream albeit an older version.

Here are the 2 links to the tutorials that I used to install Techstream onto my Windows 8 64 bit:

http://www.toyota-4runner.org/genera...-8-64-bit.html

and

http://www.ft86club.com/forums/showthread.php?t=73034

As for the MVCI cable, I want to clear up the controversy regarding which one to get. People have said that you need the MVCI cable with firmware version 2.0.4 to have K-line protocol. I want to say that there are no MVCI cables with K-line protocol and you DON'T need it to reprogram key fobs.

I bought 2 MVCI cables; one of the cables (from Amazon) contained firmware version 1.4.1 and the other cable (bought from Aliexpress) contained firmware version 2.0.4.

http://www.amazon.com/gp/product/B00...ilpage_o08_s00

http://www.aliexpress.com/item/Origi...248128688.html

I tested both cables and they both are able to program smart keys. I want to repeat that the utility check function within Techstream states that both of these cables do NOT have K-line support, but the good news is that you don't need it to program keys. However, I can confirm that the PCB circuitry do look different from one another but doesn't seem to affect their functions.

Also, you can get these cables from ebay. I messaged a bunch of sellers on ebay to see which one of them were selling the cable with firmware version 2.0.4, and almost none of them knew what I was talking about. They thought I was talking about the Techstream version. However, one of the sellers understood what I was talking about; ebay seller named autotech365. He confirmed that he was selling the cable with firmware 2.0.4.

Anyways, I hope this helps. And good luck.