I am trying to work with a company on a few things for my is350 and they think they might be able to adjust some things with the transmission. First I need to locate and remove whatever controls the transmission so they can let me know if they can reprogram it. Where can I find this on my car?

The transmission is controlled by the engine computer. It is mounted on the LH side of the engine bay inside of the computer box. (Beside the fuse/relay box).

Jeff

What do they think they can do to transmission programming? We cant even tune our engine with this ecu brony.

They say they have been able to reprogram a few Toyota transmissions but they would need to see the computer first to see if they can do anything for the is350.

We already have tuned the engine. Check rr-racing and ttfs

Actually they are able to tune the engine these days.

This is what the outside of the computer looks like:


This is what the inside of the computer looks like:


The processor on the right side of the board is for the transmission (though there are obviously a few other related components).

Jeff

Very nice. Rr racing is legit.

in regards to poster. Rr racing can probably help you out. Thats amazing they cracked the ecu.