The parking assistance system provides the driver with information, whilst reversing, on the distance from any objects behind the vehicle which could be out of their range of view.

The information on the presence/distance of an obstacle is transmitted to the driver by means of acoustic warnings whose frequency depends on the distance of the vehicle from the obstacle.

An electronic control unit activates and controls the operation of the sensors located in the rear bumper, processes the signals received and operates the buzzer in the instrument panel.

The system is activated automatically with reverse gear engaged: in these conditions, the control unit energises the transducers and sends them a signal request, receiving the response signals.

The signalling of the distance of the obstacle is achieved through intermittent impulse sound signals: the frequency of this signal increases gradually as the bumper approaches an obstacle: when the distance calculated drops below 30 cm, the sound becomes high pitched and constant; the acoustic signal stops when the distance of the obstacle increases.

The signalling ceases if one of the two lateral sensors detects a constant distance from an obstacle for more than three seconds (this is to avoid incorrect readings, for example in the case of parking manoeuvres alongside walls).

A TV camera located in the housing for the third brake light is available on request; it makes it possible, by means of a monitor located in the cab, to view the area to the rear of the vehicle which makes parking manoeuvres easier.

This TV camera is activated either automatically, when reverse gear is engaged, or manually, by pressing the dedicated button in the display.

The signal that reverse gear is engaged is managed by the Body Computer which sends this information to the parking sensor control unit via the CAN.

    See E1050 CAN CONNECTION LINES

The control unit is equipped with a self-diagnosis function: when switched on the control unit carries out an initial test on the sensors which are then continuously subject to fault diagnosis during the operation of the system. A fault in only one sensor inhibits the operation of the entire system.

The Body Computer is connected, via the CAN, to the instrument panel for the management of the "general failure" warning light (COMFORT version) to signal any faults.

If there is a trailer then there is no signalling of rear obstacles.

It is vital, for correct operation, that the sensors are always kept clean and free from any dirt, snow or ice.

A pedestrian warning buzzer also warns of any pedestrians whilst the vehicle is reversing.

The system is supplied and protected by a specific fuse in the junction unit under the dashboard.

For more details and information on the operation of the system,

See descriptions 5580H