Rear Brake Intervention
Rear brake application is a relatively slow and less effective method of wheel speed control compared to spark retard and/or throttle close down. Rear brake application is more effective at slower speeds during excess wheel spinning. Using individual rear brake control, it is possible to utilize traction available on split road conditions such as dry/wet or wet/icy road conditions. Rear brake intervention only occurs when vehicle speed is less than 50 MPH. With vehicle speeds greater than 50 MPH, engine torque is controlled by spark retard and throttle close-down.