TS and CG Terminal Circuit: Description
WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
If the vehicle is stationary during sensor check mode, speed sensor malfunctions cannot be detected. The vehicle must be driven for speed sensor malfunctions to be detected.
HINT:
Change to sensor check mode by connecting terminals TC and CG of the DLC3, and turning the ignition switch from OFF to ON.