Conditions For Running DTC

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 GMC Savana Special, 2002 GMC Savana Camper Special, and 2002 GMC Savana. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0101, P0102, P0103, P0112, P0113, P0116, P0117, P0118, P0500, P0502, P0503, P1111, P1112, P1114, or P1115 are not set.
The coolant temperature is -40°F (-40°C) or more.
The start-up coolant temperature is less than 178°F (81°C).
The Intake Air Temperature (IAT) is 19°F (-7°C) or more.
The engine is running more than 2 minutes and less than 22 minutes.
The vehicle speed is more than 5 MPH for more than 0.5 mile.
The Mass Air Flow (MAF) average reading is more than 23 g/s.