Lexus Troubleshooting Questions? Ask a Lexus Expert
This is the undercover that is black ,and the sensor you are after is the sensor on top of the accelerator pedal
where your feet are under the dash look up and you will see a cover with a foor room light fixed in to it and the OBD connection .
No you are just removing the cover ,its possible due to the year of your car there is no OBD connector there .
The cover as said is just a plastic cover horizontal to the floor or the car
Okay good hunting .