ANTI-LOCK BRAKE SYSTEM FAIL-SAFE CHART


  1. FAIL SAFE OPERATION


    • If there is a problem with sensor signals or actuator systems, the skid control ECU (brake actuator assembly) prohibits power supply to the brake actuator assembly and terminates ABS control.

      The brake actuator assembly turns off each solenoid and the ECM shuts off ABS control from the skid control ECU (brake actuator assembly) accordingly, which turns out to be as if the ABS system were not installed.

      The ABS control will be prohibited, but EBD control will continue as much as possible. If EBD control is impossible, the brake warning light will come on to warn the driver Click here.

    • If system components have any malfunctions before starting control, immediately stop the operation. If system components have any malfunctions during control, gradually stop the control so as not to trigger a sudden change in vehicle conditions.

      If it is impossible to control the systems, the warning light comes on to inform the driver of termination of the systems Click here.

    Tech Tips


    • If the ABS system malfunctions, the brake system operates normally without the ABS system.

    • If it is impossible to control the systems, the warning light comes on to inform the driver of termination of the systems

    ABS and EBD system
    Malfunction Area Fail-Safe Operation
    ABS system ABS and BA control prohibited
    EBD system ABS, EBD and BA control prohibited