Diagnostic Aids: P0847

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

You may have to drive the vehicle in order to experience a condition.
This DTC may indicate that SS2 is mechanically defective.
When DTCs P0757 and P0847 are set in combination, this may indicate an open circuit condition on the pressure switch circuit or the shift valve 2 is stuck in the stroked position.