Fail Safe Function
If an error occurs in the skid control ECU with Actuator, sensor signals, and/or actuators, the skid control ECU with Actuator inhibits the brake actuator control and sends an error signal to the engine control module. According to the error signal, the brake actuator turns off the solenoid and the engine control module rejects any electronically controlled throttle open request from the VSC system. As a result, the vehicle functions regardless of the ABS, TRAC, and VSC systems.