Toyota TechStream

Overview

I purchased the software and the USB to OBD2 interface to make some changes and also to be able to see what is really wrong with the car when there is trouble.

detail purchase and tips

detail tweaks

Purchase

Software tools:

I've read a number of RAV4 forums, and it always comes back to you really need the official Toyota tool: Techstream.

I just bought the car adapter and techstream to control/customize my car. I have done this with the VAG-COM tool on my Audi's.

I'm very happy with the product so far, already improved a weak point in the car, the anemic cooling fans in the seats.

I went through Diag Tools Solutions  diag-tools.com and what great support, they were online and were right there in real time, wow.

Installation of Techstream

So, as always with "factory style" software, buying a reasonably priced "cable" for the OBD2 connection and the drivers is a pain.

I bought mine from Diag Tools and it was $85, a good price, and the only tricky part was installing the driver(s), since Windows did not like them. (This is fallout from Windows striking a deal with the Silabs people to block non Silabs USB>serial chips and their drivers.)

You do the standard stuff by disabling your antivirus and installing the drivers. Also watch if after installation Windows Security pops up, allow the driver as an exception. The drivers were supplied in a zip file, and had several drivers, I would guess for compatibility, I used the newest one (highest Version).

Installing the software was easy, and the software gives you an unique ID, you send this to the DIAG TOOLS people and you get the software key. Simple, and again they were right there in minutes to give me this.

I'll add more as I get experienced with TechStream, but money well spent for sure!

 Use:

use offline, do not log in, you can see that there are 4000 days left in the subscription

Tweaks

Stuff I want to change:

• seat heaters anemic
• seat coolers are ok
• seat belt beeper/chime - tone it down or off
• calibrate tps sensors? - go into tire pressure ecu, then data list, you can set pressures there, they read in psi, and to 2 decimals
• tweak temperature offset, does it affect seat heater temp?
• lane change blinks
• program to allow locking of vehicle with sunroof open
• one touch sunroof control? allow closing of sunscreen with sunroof open
•  passenger airbag sensor/weight/occupancy sensor

cuw is tsb files, where to download?

try the health function

https://techinfo.toyota.com/techInfoPortal/staticcontent/en/techinfo/html/prelogin/tsrss/ts_known_bugs.html 

https://www.tacomaworld.com/threads/ecu-tsb-update.562550/

http://garageforum.org/Thread-Toyota-Lexus-Reprogramming-Calibration-CUW-files

Tweaks accomplished:

Seat fans tweak

drilling down, I found the seat cooling, and there are 3 settings, normal, more wind and less wind (great translation ha ha), changed from normal to more wind and it made a noticeable improvement.

TPMS

well, i wanted to look into this because one wheel

the TPMS sensors have unique codes, required to be input to register them in the TPMS system.

It's a good idea to note them and their location in case some idiot messes things up.

The locations are listed at tire 1-5, i need to verify the following:

1=LF, 2=RF, 3=RR, 4=LR, 5=spare (you can input either 4 or 5 tires)

Customize menu in Techstream 

remote windows down

 customize setting > power window --  door key pw up and down functions ENABLE

seat belt alarm

warning > drivers seatbelt warning function to OFF

wireless door lock

wireless unlock twice function

door lock

unlock key twice, auto door locks, etd

security

warning by horn

wiper

rear wiper washer function - mine is disabled??

illuminated entry

where auto interior ligths on is controlled

warning

where warning buzzers for each passenger can be disabled

lane chage shound level, and number of flashes

light control

can disable drl

levels settings??

slide roof

nothing??!!

ac

fan speeds, temp offset

display

can align projected display, heystone, pincoushion, angle, etd

smart key settings

some tweaks

psd pbd

needs investigqtion, seems related to door locks

seat

some seat memory and linkage, refers to some options like telescoping wheel

others

pcs functions ?

remote engine starter, mine is disabled?

clearance warning

looks like ultrasonic sensors mostly

blind spot monitor

mostly enable/disable

headlight control

nothing??!!

same for my settings and plus support