199001383 - E4010 INSTRUMENT PANEL - FUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
The ignition-operated supply (INT) to instrument panel E50 reaches pin 3 of connector A from Body Computer M1 - pin 5 of connector H - via fuse line F22 of the Body Computer.The direct supply reaches pin 2 of connector A from Body Computer M1 - pin 52 of connector H - via fuse line F45 of the Body Computer.Pin 1 of connector A is earthed.Body Computer M1 - connector G - is supplied directly from the battery via a line protected by maxifuse F2 of engine compartment control unit B1; its ignition-controlled supply (INT) is received at pin 2 of connector D; pin 10 of connector H or M1 supplies the Body Computer with a reference earth.The instrument panel E50 is connected from pins 5 and 6 of connector A with the Body Computer M1 and via the latter to the entire CAN: the signal reaches the electronic speedometer (from the ABS control unit M50) via the CAN:The electronic rev counter receives the engine rpm signal received from the engine management control unit M10 via the CAN.The fuel level gauge is controlled by means of signals coming from the level gauge located in the fuel pump assembly N40 - at pins 45 (signal) and 40 (earth) of connector A of the Body Computer M1 and from there via the CAN to the instrument panel E50.The insufficient brake fluid level/handbrake warning light is lit up by a signal from the handbrake switch I40 that reaches pin 43 of connector A of the Body Computer M1 or from the signal from the brake fluid level sensor K25 that reaches pin 21 of connector A of M1. The brake pad wear warning light is controlled on the basis of the signal that reaches pin 27 of connector A of the Body Computer M1 from the sensors K20.All these signals are transferred via the CAN to the instrument panel E50. | There is only one direct instrument panel connection to turn on a warning light: this is the EOBD warning light: pin 18 of E50 receives a direct earth signal generated by the diagnostic systemof engine control unit M10. See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |