Conditions for Running the DTC

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0036, P0037, P0038, P0137, P0138, P0140, P0141, P0443, P0458, P0459, P2232 are not set.
The ignition 1 voltage is between 10-18 volts.
The engine run time is greater than 5 minutes.
The engine speed is between 1, 100-2, 500 RPM.
The mass air flow (MAF) is between 3-20 g/s.
The vehicle speed is between 50-120 km/h (31-75 mph).
The fuel level is greater than 10 percent.
The fuel system is in Closed Loop.
The catalytic converter temperature is between 550-900°C (1, 022-1, 652°F).
The DTCs run once per ignition cycle when the above conditions are met.