Conditions for Running the DTC

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
System voltage 10.5 - 18 V.
No DTC P0562 or P0563.
Transfer case range actuator not performing a requested range change (C0306 01, C0306 02 and C0306 04 only).
DTC C0306 and C0381 run continuously within the enabling conditions.