Conditions for Running the DTC

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. 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 70°C (158°F) and the temperature has changed by 50°C (90°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.