The ignition controlled power supply (INT) for instrument E50 reaches pin 1 connector A via the body computer M01, pin 31 connector F from the line protected by fuse F37 of the junction unit under the dashboard B02.The instrument E50 also receives a direct power supply from the battery - pin 3 of connector A - via the body computer, pin 3 connector D from the line protected by fuse F53 housed in the junction unit under the dashboard B02.The power supply to the body computer M01 reaches pin 9 connector XY via the junction unit under the dashboard B02 (pin 11 connector E) from the ignition switch H01 (INT) and at pin 18 of connector XY of the body computer M01 via the junction unit under the dashboard B02 directly from the battery protected by fuse F1 located inside the engine compartment junction unit B01.Pins 8 and 9 of connector D of the body computer are earthed.The body computer M01 and the instrument panel E50 converse with one another exchanging information on the correct operation of the devices on the vehicle from pins 5 and 6 connector D and 9 and 8 connector A.The instrument panel E50 is earthed, via the body computer M01, from pin 2 connector A.The signals for the handbrake switch I40 and the brake fluid level sensor K25 reach pin 14 connector A and pin 18 connector C of M01.The body computer receives the signals coming from the flow gauge, located in the electric pump assembly N40, at pins 4 and 15 connector A: these signals, sent via the CAN to the instrument panel, are processed by the internal electronic device which manages the level gauge and the reserve warning light housed in the actual instrument.The speedometer sensor K84 sends its own signal directly to the body computer M01 at pin 17 connector C; it is sent via the CAN line to both the instrument panel E50 for managing all the information regarding the vehicle speed and to the engine management control unit M10 for the correct operation of the latter.The minimum engine oil pressure signal reaches the engine management control unit M10, pin 9 connector B from the special sensor K30; this signal reaches the instrument panel E50, via the CAN, making the activation of the warning light possible.If there is water in the filter, the water in the diesel filter sensor K31 sends its own signal to pin 90 connector A of the engine management control unit M10; the control unit commands the instrument panel E50, via the CAN, to switch on the "water in the diesel filter" warning light.In the same way the information linked to the temperature of the engine coolant leaves the appropriate sensor K36 and reaches the engine management control unit M10 at pins 54 and 29 of connector B. From there it is then sent to the instrument panel E50 to manage the gauge signal and, if necessary, the coolant overheating warning light.The rpm sensor K46 sends the engine rpm signal to the engine management control unit M10 at pins 43 and 59 connector B; the control unit informs the instrument panel E50, via the CAN, which makes the display of the engine speed possible.The information travels via the CAN line from pins 58 and 59 connector B of M10 to pins 36 and 37 connector C of M01.The signal for the headlamp alignment corrector leaves pin 6 connector A of the instrument panel. See E3080 HEADLAMP AGLINMENT CORRECTORThe signals from the AIR BAG control unit for the correct management of the warning lights reach pins 12, 14 and 15 connector B. See E7030 AIRBAGThe zeroing/sliding signal for the Trip Computer values reaches pin 4 of connector A. See E4080 TRIP COMPUTERInside the driver''s exterior rear view mirror is the outside temperature sensor; the signal, proportional to the temperature, is supplied by the driver''s exterior rear view mirror P60 (on right hand drive versions, the passenger side exterior rear view mirror P61) and reaches pins 17 and 18 connector B of the instrument panel E50 which processes it showing the temperature on the display.