Please refer to service information before beginning any reprogramming operation to determine this need and to download the necessary software tool.

Some reprogramming operations require writing the VIN back into the module.

To prevent damage to your customer’s vehicle and ensure safe service practice, read these materials completely and thoroughly before servicing the vehicle and be sure to follow all instructions. The information provided herein is intended expressly for use by qualified professional automobile technicians. It is especially important to understand that once started, the reprogramming process must not be interrupted, reprogramming devices must not be disconnected and PCs must not be allowed to go into Standby, hibernation or similar power management modes.

It is possible to permanently damage a vehicle controller during the flash reprogramming process.

Details on the professional diagnostics Techstream license here: and download directly from Toyota.

Toyota Information System (TIS) requires Adobe Flash Player 11 up and Java 7 up.

Network Card: 10/100/1000 Mbps Ethernet.

Windows 8 32 or 64 bit Techstream v8.0 up.

Windows 7 32 or 64 bit Techstream v4.21 up.

Intel or AMD processor: 1.5 GHz or higher.

You must have an active professional level subscription to access the calibration files. Available ECU updates are specified in applicable Technical Service Bulletins (TSBs), which can be accessed with a subscription to this website.

Toyota, Scion, and Lexus ECUs can be reprogrammed using Techstream Lite.

Techstream Lite supports DLC3/J1962 based diagnostic functions on 1996 and later Toyota, Scion, and Lexus vehicles marketed in North America.

Toyota Techstream V12.20.024 Installation and Setup

Toyota techstream key programming->VXDIAG VCX NANO Toyota.

Toyota techstream ecu programming->VXDIAG VCX NANO for Toyota.

Toyota obdii diagnostics–> MINI VCI cable.

Need techstream activation/registration via Key ID.

Techstream Lite is an inexpensive alternative to the full TIS techstream system and provides factory level support for Toyota/Scion/Lexus vehicles. Techstream Lite allows Techstream diagnostic software to run on your PC (see minimum PC requirements) to service Toyota, Scion, and Lexus vehicles. Toyota Techstream v12.20.024 software is verified to work 100% with MINI VCIcable, Xhorse MVCI, VXDIAG VCX NANO for Toyota OEM diagnostics tool, Toyota OTC2 OEM diagnostics tool.

Toyota tis techstream scan tool