DTC P2195 Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1); DTC P2196 Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1): Notes

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.

HINT:

Although the DTC titles say oxygen sensor, these DTCs relate to the Air-Fuel Ratio (A/F) sensor.
Sensor 1 refers to the sensor mounted in front of the Three-Way Catalytic Converter (TWC) and located near the engine assembly.