Anti-Lock Brake System Control: Operation

The ECU receives and processes a wheel speed signal from each wheel sensor. When wheel lock-up is about to occur, the ECU activates solenoid valves to modulate hydraulic pressure to each wheel. A pump/motor assembly provides hydraulic pressure to the system. The ABS incorporates self-diagnostic capabilities. See DIAGNOSIS & TESTING  .

The traction control system controls wheel spin by modulating the engine torque by communicating to the PCM and by applying and releasing the appropriate brake to restore traction when one or both drive wheels lose traction and begin to spin during acceleration. Traction control can be disabled by pressing traction control switch.