Conditions for Setting the DTC
WARNING: This page is about a different car, the 2009 GMC Yukon, 2009 Chevrolet Tahoe, 2009 Chevrolet Suburban, and 2009 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
This DTC sets if one of three components: motor driver inside the transfer case shift control module, transfer case clutch, or the shift motor, exceed the thermal model within the software for the module.