Systems with unknown ECU status are highlighted in yellow. Now you’ll come to the “System Selection Menu.” You’ll see the systems are divided into tabs, including “All ECUs,” “Powertrain,” “Chassis,” and “Body Electrical.” If the system is all clear, it is in white.A dialogue box will come up showing the vehicle information read by Techstream.Look for the button in the upper right corner of the Techstream interface that says “Connect to Vehicle.” Once you press that, the computer will begin communication, and Techstream will automatically recognize the VIN information.Turn the key on your ignition without starting the engine, which will be the key position that turns on electronic systems, like the radio and lights.

Verify that the connection is secure and that data is sent before continuing. Connect the other end of the cable to the USB port on your computer.In most Toyotas, it is underneath the dash on the left of the steering wheel. This usually is somewhere around the steering wheel. Once the installation is complete, connect the Techstream cable to the OBDII port on your vehicle.Once the software is installed, you can obtain whatever subscriptions you need for the services you require. Install the Toyota Techstream software on your computer following the included instructions for your operating system.

Techstream scan tool