Conditions for Setting the DTC
WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The ECM detects that the TP sensor 1 voltage is not between 0.2-0.9 volts during the throttle learn procedure.
OR
The ECM detects that the TP sensor 2 voltage is not between 4.2-4.8 volts during the throttle learn procedure.
OR
The minimum throttle position is not learned after an ECM replacement.