Diagnostic Aids

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

DTCs may set due to extended operation of ABS, traction control or stability control.
If DTCs C056D 00 and C0274 4B is set, reprogram the electronic brake control module.
Since most occurrences of this DTC are caused by excessive ABS or traction control usage, review with the customer the conditions under which the DTC set.