DTC P0221: Throttle Position (TP) Sensor Circuit Range/Performance, DTC P0222: Throttle Position (TP) Sensor 1 Circuit Low Input &/Or DTC P0223: Throttle Position (TP) Sensor 1 Circuit High Input: Description
WARNING: This page is about a different car, the 2002 Nissan Maxima and 2002 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.
Electric Throttle Control Actuator consists of throttle control motor, Throttle Position (TP) sensor, etc. The TP sensor responds to the throttle valve movement. The TP sensor has the 2 sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the ECM. See Fig 1 . In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.