Circuit/System Description

WARNING: This page is about a different car, the 2014 GMC Yukon XL 1500, 2014 GMC Yukon, 2014 Chevrolet Tahoe, and 2014 Chevrolet Suburban 1500. However, it is still accessible from the selected car via links, so may be relevant.

This is an internal fault detection of the transfer case shift control module (TCCM). No external circuits are involved.
This DTC is set anytime a TCCM is replaced or reprogrammed.
The automatic transfer case (ATC) motor learn procedure must be performed in order for the TCCM to learn current clutch tolerance based on clutch stackup and accumulated clutch wear.