Conditions for Setting the DTC
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
C1124 00
This diagnostic determines if the normally open valve has been blocked, closed, or stuck shut. This diagnostic runs while the accumulator is being discharged during the hydraulic shutdown.
C1125 00
This code is an information code only, and requires no diagnostics.
C1126 00
The EBCM is detects that a brake pressure modulator valve is blocked, closed, or stuck shut.