Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The engine speed is greater than 700 RPM.
The engine has been operating longer than 2 seconds.
The wheel speed must be greater than 30 MPH in order to enable the diagnostic. The diagnostic will disable when the wheel speed is below 10 MPH.
The vehicle speed is decreasing at a rate greater than 2.6 MPH over a 250 millisecond period.