Answer by  
                                                                                          jsflw2010 (459)
                                                            
                          
                          
                                                          The ABS actuator is the primary component of the ABS system, it is the part that controls pressure release in the ABS channel which modulates the brakes. The different types are 1 or 2 channel(rear), 2 Channel 4-wheel Criss-cross, 3 Channel 4-wheel, and 4 Channel 4-wheel.