Conditions for Running the DTC

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The engine speed is between 200-7500 RPM for at least 5 seconds.

P0815 or P0816

No DTCs P0826 or P0708.
The time since the last gear selector range change is greater than 6 seconds.