Conditions for Running the DTC

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Before the ECM can report DTC P2297 or P2298 failed, DTCs P0121, P0122, P0123, P0221, P0222, P0223, P0336, and P0338 must run and pass.
DTCs P0030, P0031, P0032, P0050, P0051, P0052, P0053, P0059, P0130, P0131, P0132, P0135, P0150, P0151, P0152, P0155, P0443, P0458, P0459, P2096, P2097, P2098, P2099, P2231, P2234, P2297, and P2298 are not set.
The fuel injectors are enabled.
The HO2S 1 is at operating temperature.
The engine is operating.
The ignition cycles is greater than 29.
The HO2S 1 is less than 1.6 lambda.
The DTCs run continuously once the above conditions are met.