199001382 - E4010 INSTRUMENT PANEL - DESCRIPTION

DESCRIPTION

- Speedometer: the function of the speedometer includes displaying the vehicle speed in the instrument panel: this information comes from the ABS and engine control units, via the Body Computer.- Engine rpm: this function involves the display on the instrument panel of the engine rotation speed by means of the message sent via the CAN from the engine management control unit.- Milometer: the milometer function includes the display and memorizing of the total and trip mileage: Mileage information is processed by the Body Computer by means of a counter that is sent via the CAN network to the instrument panel. The trip counter that forms part of the Trip Computer can be reset using a TRIP button on the right steering wheel stalk.- Fuel level: the Body Computer receives the signal from the sensor integrated in the pump assembly inside the fuel tank and processes it to guarantee suitable filtering/damping for the panel gauge, also managing the reserve warning light. The circuit is capable of detecting a fault in the wiring or in the sensor and providing the instrument panel with a suitable reading: if there is a system malfunction, the pointer is at the start of the scale and the reserve warning light flashes.- Engine coolant temperature this function involves the display of the engine coolant temperature in the instrument panel and the overheating warning light coming on by means of messages sent via the CAN from the engine management control unit. The temperature reading is always guaranteed, even in extreme operating conditions.- Minimum engine oil pressure: this function involves the display on the instrument panel of the engine oil pressure warning light by means of the message sent via the CAN from the engine management control unit.- Brake pad wear state: this function involves the specific warning light coming on: the Body Computer detects the brake pad wear status when braking (signal from the brake pedal) in a prolonged manner (occasional signals are ignored).- Handbrake applied: the Body Computer acquires the handbrake status from a special switch and notifies the instrument panel of activation via the CAN network. The function turns on the low brake fluid level warning light on the instrument panel. A buzzer is also activated if this signal is associated with the exeeding of a set speed threshold.- Insufficient brake fluid: this function involves the "insufficient brake fluid level" warning light in the instrument panel coming on with the signal sent by the Body Computer via the CAN.- Inertia switch status: the Body Computer receives a signal from the switch and communicates activation via the CAN network to the instrument panel, which emits a signal (warning light + message).For more details    See descriptions 5560 INSTRUMENTS The general fault signal summarises the faults detected by a set of systems and components:- Inertia switch operation- Engine oil pressure sensor failure- TPMS fault- Rain sensor failure- Parking sensor failureExterior lights failure: The Body Computer contains a check function that specifically monitors exterior light operation and turns on a warning light if a fault is detected: side light, number plate, rear fog, turn signal and brake light faults (including brake light fuse failure).

The operation of the warning lights which do not come under any other functions is illustrated below: the other warning lights and displays are described and illustrated in the diagrams for the components to which they refer.