Conditions for Running the DTC

Before the engine control module (ECM) can report DTC P0496 failed, DTCs P0451, P0452, and P0453 must run and pass.
DTC P0100, P0101, P0102, P0103, P0111, P0112, P0113, P0116, P0117, P0118, P0119, P0125, P0443, P0446, P0449, P0451, P0452, P0453, P0458, P0459, P0496, P0498, P0499, P0560, P0562, P0563, P0721, P0722, P2122, P2123, P2127, P2128, P2138, P2227, P2228, or P2229 is not set.
The fuel system is in closed loop for greater than 30 seconds.
The vehicle speed sensor (VSS) is less than 3 km/h (2 mph).
The engine is idling.
The ignition voltage is between 10-18 volts.
The FTP is between -18.7 to +9.7 mm Hg (-10.0 to +5.2 in H2O).
The ambient air temperature is between 2-32 °C (36-90 °F).
The fuel tank level is between 11-88 percent.
The start-up engine coolant temperature (ECT) is within 10 °C (18 °F) of ambient air temperature
The engine run time is greater than 10 minutes or the long term fuel trim is stable.
The barometric pressure (BARO) is greater than 68 kPa.
The above conditions are met for greater than 4 seconds.
DTC P0496 will attempt to run up to 10 times or the test completes successfully once per ignition cycle.