Latest Toyota Techstream Software v14.30.023

Techstream allows you to run Techstream diagnostic software on your PC (see Minimum PC Requirements) for servicing Toyota, Scion, and Lexus vehicles. Techstream is a low-cost alternative to the full Techstream TIS system and provides factory-level support for Toyota/Scion/Lexus vehicles.

Toyota Techstream Hardware

Toyota Customization –> MINI VCI
Toyota OBDII Diagnostics –> MINI VCI Cable
Toyota Techstream ECU Programming –> VXDIAG VCX NANO for Toyota
Toyota Keystream Programming –> VXDIAG VCX NANO

Scantool Diagnostics

Techstream supports DLC3/J1962-based diagnostic functions for 1996 and later Toyota, Scion, and Lexus vehicles sold in North America.

Vehicle Reprogramming

Toyota, Scion, and Lexus ECUs can be reprogrammed using Techstream. Available ECU updates are listed in the relevant Technical Support Bulletins (TSBs), which can be accessed by subscribing to this website. You must have an active Professional subscription to access calibration files.

Reprogramming

Damage to the vehicle’s controller is possible during the flash reprogramming process. It is especially important to understand that once the flash reprogramming process has started, the reprogramming devices must not be disconnected, and the PC must not enter standby, hibernation, or similar power management modes. The information provided in this document is intended solely for use by qualified automotive technicians. To prevent damage to your customer’s vehicle and ensure safe servicing practices, please read these materials completely and thoroughly before servicing the vehicle and be sure to follow all instructions.
Some reprogramming operations require writing the VIN back to the module. Please refer to the service information before beginning any reprogramming operation to determine this requirement and download the required software tool.