July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC P0121: Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance problem: Notes

WARNING: This page is about a different car, the 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

This is the procedure of "throttle position sensor".