Throttle Valve Closed Position Learning: Description
WARNING: This page is about a different car, the 2002 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
Throttle valve closed position learning is an operation to learn the fully closed position of the throttle valve by monitoring the throttle position sensor output signal. It must be performed each time electronic throttle control actuator harness connector or ECM harness connector is disconnected.