Electronic Brake Control Module

CAUTION: Refer to ABS Component Handling Caution in Cautions and Notices.

The EBCM performs the following primary functions in order to provide efficient braking and vehicle stability. In the DDRP system, power to the rear hold valve solenoid is provided from ignition. If the following fault conditions are existing, the red brake warning lamp will be illuminated.

Monitor wheel speed sensor inputs.
Detect wheel slip tendencies.
Control the brake system while in the anti-lock control mode.
Monitor the system for proper electrical operation.

The EBCM continuously checks the speed of each wheel to determine if any wheel is beginning to slip. If any wheel slip tendency is detected, the EBCM commands appropriate valve positions to modulate brake fluid pressure in some or all of the hydraulic circuits to prevent wheel slip and provide optimum braking. The EBCM continues to control pressure in individual circuits until a slipping tendency is no longer present. Also the EBCM continuously monitors the ABS for proper operation. If the EBCM detects an error, it can disable the ABS function and turn ON the ABS warning lamp in the instrument cluster. The EBCM also controls the display of the ABS diagnostic trouble codes (DTCs) while in diagnostic mode.