Conditions for Setting the DTC: P2128

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The APP sensor 2 voltage is greater than 4.8 volts for greater than 4 seconds.
The APP sensor 2 voltage is greater than 2.4 volts for greater than 4 seconds when the accelerator pedal is not in the rest position.