Conditions For Running DTC

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0101, P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0125, P0171, P0172, P0174, P0175, P0200, P0300, P0440, P0442, P0443, P0500, P0502, P0503, P1120, P1220, P1221, or P1441 are not set.
The engine is running for greater than 60 seconds.
The Engine Coolant Temperature (ECT) is greater than 140°F (60°C).
The Intake Air Temperature (IAT) is greater than 14°F (-10°C).
The Barometric (BARO) pressure is greater than 65 kPa.
The system voltage is between 9-18 volts.
The vehicle speed is less than 1 MPH.
The Accelerator Pedal Position (APP) sensor is at 0 percent.