Circuit/System Description
WARNING: This page is about a different car, the 2010 GMC Canyon and 2010 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
The electronic brake control module (EBCM) and the powertrain control module simultaneously control the traction control system. The powertrain control module sends a Delivered Torque message via a pulse width modulated signal to the EBCM. The duty cycle of the signal is used to determine how much engine torque the powertrain control module is delivering.