Circuit/System Description
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The electronic brake control module (EBCM) and the electronic control module (ECM) simultaneously control the traction control. The EBCM sends a serial data message to the ECM requested torque reduction. When certain ECM DTCs are set, the ECM will not be able to perform the torque reduction for traction control. A serial data message is sent to the EBCM indicating that traction control is not allowed.