Conditions for Running the DTC

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P16A0, P16A1, P16A2, P160E, P160D, P16F3, P00C8, P00C9, P0068, P0106, P0107, P0108, P0111, P0112, P0113, P0114 P0116, P0117, P0118, P0122, P0123, P0125, P0128, P0191, P0192, P0193, P0220, P0222, P0223, P0442, P0443, P0449, P0452, P0453, P0454, P0502, P0503, P0601, P0604, P0606, P0641, P0651, P0722, P0723, P1104, P1516, P1682, P2100, P2101, P2102, P2103, P2119, P2120, P2122, P2123, P2125, P2127, P2128, P2135, P2138, P2176, P2227, P2228, P2229, P2230 are not set.
The ignition voltage is between 11-32 V.
The barometric pressure (BARO) is more than 70 kPa.
The fuel level is between 10-90 percent.
The startup engine coolant temperature (ECT) is less than 35°C (95°F).
The startup intake air temperature (IAT) is between 4-30°C (39-86°F).
DTC P0446 runs once per cold start when the above conditions are met.