The ignition-operated power supply (INT) for instrument panel E050 reaches pin 3 via a line protected by fuse F37 of Body Computer M001 (pin 7 of connector E); the direct battery power supply reaches pin 2 of E050 via a line protected by fuse F53 of the Body Computer (pin 14 of connector E).Pin 1 of instrument panel E050 is connected to driver-side dashboard earth C015.Instrument panel E050 is connected from pins 5 and 6 with Body Computer M001 (pins 18 and 20 of connector D) and via the latter to the entire CAN.Body Computer M001 (pins 44 and 45 of connector B) receives the speedometer signal from braking system control unit M051 (pins 26 and 14) via the C-CAN, and forwards it to instrument panel E050.The electronic rev counter receives the engine rpm signal coming via the CAN from engine management control unit M010, connected via pins 43 and 59 of connector B to engine rpm sensor K046.The digital fuel level gauge is managed according to the signal coming from the level detector located in electric fuel pump unit N040. The Body Computer provides the sensor with a reference earth (pin 17 of connector F) and receives a proportional signal at pin 4 of the same connector, and forwards it to instrument panel E050 via the B-CAN.The handbrake applied/insufficient brake fluid level warning light is activated by an earth signal from handbrake switch I040 that reaches pin 10 of connector F of Body Computer M001, or from brake fluid level sensor K025 that reaches pin 33 of connector B of M001.Brake pad wear sensor (switch) K020 controls the associated warning light via a connection with pin 26 of connector B of Body Computer M001.Engine management control unit M010 sends signals coming from the following to the instrument panel via the CAN:
insufficient engine oil pressure sensor (switch) K030, connected to pin 9 of connector B;
engine coolant temperature sensor K036, connected to pins 29 (reference earth) and 54 (signal) of connector B;
water presence in diesel fuel filter sensor built into filter unit K101 A, connected to pin 90 of connector A.
See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT Braking system control unit M051 is connected, via the C-CAN line, from pins 15 and 27, to engine management control unit M010 (pins 64 and 40 of connector A) forwarding the signals described above to Body Computer M001. See E1050 CAN CONNECTION LINES The internal logic of E050 also manages the headlamp adjustment function: the panel sends a control signal to the motors in the headlamps from pin 7, whilst the enablement signal reaches pin 8 (dipped headlamps on). Pressing the + or - buttons to the right of the panel controls the adjustment. See E3080 HEADLAMP AGLINMENT CORRECTOR The Trip Computer zeroing button (TRIP), located at the end of the right-hand lever of steering wheel interface H005, sends an earth signal to pin 9 of instrument panel E050. See E4080 TRIP COMPUTER