Conditions For Running DTC

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Suburban, and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0100, P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0125, P0335, P0336, P0443, P0446, P0449, P0452, P0453, P0455, P0496, P0500, P0502, P0721, P0722, P1106, P1107, or P1683 are not set.
The diagnostic runs once with a 10 hour minimum between tests after a fail.
DTC P0455 must run and pass.
The start up intake air temperature (IAT) is between 39-86° F (4-30° C).
The start up Engine Coolant Temperature (ECT) is less than 86° F (30° C).
The start up IAT and ECT are within 15° F (8° C).
The Barometric Pressure (BARO) is more than 74 kPa.
The ambient air temperature is between 36-90° F (2-32° C).
The engine run time minimum is 600 seconds.
The odometer displays more than 10 miles.
The vehicle has traveled more than 3 miles this trip.
The ECT is more than 158° F (70° C).
The fuel level is between 15-85 percent.
The ignition is OFF.