Circuit/System Description
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The electronic brake control module (EBCM) is the control center for the ABS TCS/ESP. The programming and calibration needed by the EBCM to control the operation of the ABS TCS/ESP are stored in the EBCMs read only memory (ROM). The EBCM constantly performs a self test that detects, and isolates ABS TCS/ESP faults.