Conditions For Running DTC

WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0121, P0122, or P0123 are not set.
The engine is running.
The throttle angle is less than 90 percent when engine speed is less than 1000 RPM or the throttle angle is less than 98 percent when engine speed is more than 1000 RPM.