System Monitoring

All operating cycles and sensor inputs are checked by the control unit for plausibility and function. Any faults that might occur are stored in a defect memory according to their priority.

In the event of certain faults, the control unit selects the "medium" damping setting.

The following faults will cause the control unit to select the medium setting:

- Steering angle sensor e.g. bent wiper in sensor (signals do no match; max. deviation 30°) or temporary signal disturbance

- Steering angle sensor e.g. contact difficulties, wiper on conductor of potentiometer, loose contact in connector

- Steering angle sensor e.g. broken locating pin (sensor always supplies same signal), steering angle sensor not fitted

- Defect in road speed signal e.g. no V-signal in the case of break in wire to EKM

- Defect-vertical acceleration front axle e.g. signals not within working range (defective sensor)

- Defect-vertical acceleration rear axle e.g. signals not within working range (defective sensor)

- Defect-longitudinal acceleration e.g. signals not within working range (defective sensor)

If the soft solenoid valve circuit fails, the medium setting is selected.

If the medium solenoid valve circuit or control unit fails, the solenoids are de-energized which results in the firm setting.

Note: In case of a system failure where the system goes into a firm setting, there is no visual warning to the driver of a system problem. The only indication is that the ride is firm at all times.