Circuit Description
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The engine control module (ECM) determines the minimum throttle position each time the ignition is turned on. In order to learn this position, the ECM moves the throttle plate to the closed position. If the ECM determines the throttle plate is not moving to the fully closed position during this learn procedure, DTC P2176 will set.