Components - PARKING SENSOR - Fiat DOBLO 1.9 JTD 8V da 12/03
| Component code | Description | Reference to the assembly |
| B2 | JUNCTION UNIT UNDER DASHBOARD | |
| C15 | DASHBOARD EARTH, DRIVER''S SIDE | |
| K97 | PARKING SENSOR UNIT | |
| M084 | PARKING SENSOR ECU | |
| P44 | PARKING SENSOR SPEAKER |
| Component code | Description | Reference to the assembly |
| B2 | JUNCTION UNIT UNDER DASHBOARD | |
| C15 | DASHBOARD EARTH, DRIVER''S SIDE | |
| K97 | PARKING SENSOR UNIT | |
| M084 | PARKING SENSOR ECU | |
| P44 | PARKING SENSOR SPEAKER |
The vehicle is equipped with a device that allows easy manoeuvring whilst parking: when reverse gear is engaged, it signals to the driver that an obstacle, which may be outside of the range of vision, is being approached.It works on a sonar ultrasound principle; four ultrasound transducers are located inside the rear bumper.They send signals to a control unit which processes this information determining the distance of possible obstacles.A speaker controlled by the control unit emits an intermittent sound, proportional to the distance of the obstacle detected.The control unit is activated with reverse gear engaged: in these conditions the transducers are energized and prepared to receive the signals from the sensors.The control unit produces a signal with intermittent tone via the speaker and the frequency increases as the rear of the vehicle gets closer to the obstacle.When the distance from the obstacle goes below 25 cm, the sound becomes high-pitched and constant.If the distance measured from the obstacle increases or remains constant for 3 seconds (vehicle stationary) or reverse gear is disengaged, the sound stops.
When reverse gear is engaged the positive signal (INT/A) for switching on the reversing lights moves via the junction unit uunder the dashboard B02 and supplies the parking sensors control unit M84 at pin 1 connector A via pin 8 connector D.The control unit M084 is earthed at pin 16 of connector A.The parking sensor speaker P44 receives signals from pins 2 and 10 of connector A of the parking control unit M84; pins 9 and 6 of the same connector are bridged.The control unit M84 provides a power supply and reference earth to the four parking sensors K97 from pins 6 and 1 of connector B respectively.The four front parking sensors K97 sends signals to connector B of the control unit M84:- to pin 5 the left external rear sensor K97E;- to pin 3 the left internal rear sensor K97F;- to pin 2 the right internal rear sensor K97G;- to pin 4 the right external rear sensor K97H;
