Conditions for Running the DTC

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

No VSS assembly DTCs P0502 or P0503.
No Transmission Component Slipping DTC P0894.
The system voltage is 10-18 volts.
The engine is running for 409 seconds.
The engine coolant temperature (ECT) is greater than 84°C (151°F) and the temperature has changed by 54°C (97°F) since startup.
The vehicle speed is greater than 8 km/h (5 mph) for 409 seconds cumulative during the current ignition cycle.
The TFT at startup is between -40 and +21°C (-40 and +70°F).
The TFT is between -38 and +151°C (-36 and +304°F).
The TCC slip speed is greater than 120 RPM for 409 seconds cumulative during the current ignition cycle.