Conditions for Running the DTC

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Before the PCM can report DTC P0401 failed, DTCs P0404 and P2413 must run and pass.
DTC P0030, P0050, P0135, P0155, P0403, P0404, P0443, P0496, P0501, P0506, P0507, P0641, P0651, P2100, P2101, P2108, P2122, P2123, P2127, P2128, P2138, P2176, P2227, P2228, P2229, P2282, P2413, P2414, P2415, P2646, P2647, P2648, P2649, and U0107 are not set.
The battery voltage is more than 10.5 volts.
The engine coolant temperature (ECT) is more than 69°C (156°F).
The engine speed is between 1,100-2,200 RPM.
The manifold absolute pressure (MAP) sensor is 14 kPa or more.
The throttle position (TP) sensor indicates a closed throttle.
The vehicle speed sensor is at least 49 km/h (30 mph) before deceleration.
The diagnostic test will run during decelerate.
DTC P0401 runs once per drive cycle after the above conditions have been met.