Conditions for Running the DTC

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis 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.