Circuit/System Description
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.
This DTC is set anytime a new transfer case shift control module is installed. The transfer case motor learn procedure must be performed to erase this DTC. The motor learn procedure allows the module to learn where the shift rails are located.