2428028 - E4010 INSTRUMENT PANEL - Description

Description

The gauges and warning lights which form the instrument panel are grouped in a single instrument containing:

• electronic speedometer
• electronic rev counter
• coolant temperature gauge, with overheating warning light
• fuel gauge, with reserve warning light
• warning lights.

The instrument panel is a node on the CAN network through which it exchanges information with the Body Computer and the other electronic units.Speedometer: the function displays the vehicle speed on the instrument panel: this information comes from the ABS control unit, via the Body Computer.Engine rpm: the function displays the engine rpm on the instrument panel, via the message sent on the CAN network from the engine management control unit.Odometer: this function displays and memorises the total mileage counter and trip recorder: the distance travelled information is processed by the Body Computer via a counter; the specific button located on the panel beside the steering wheel resets the trip recorder.Fuel gauge: the Body Computer receives the signal from the sensor integrated in the pump unit in the fuel tank and processes it so as to ensure appropriate filtering / damping to the instrument panel gauge, and also controls the lighting up of the 'reserve' warning light.Engine water temperature: the function displays the water temperature on the instrument panel and lights up the water overheating warning light by means of the messages sent via the CAN network from the engine management control unit.Minimum engine oil pressure: the function lights up the minimum oil pressure warning light on the instrument panel via the message sent on the CAN network from the engine management control unit.Brake pad wear: the function lights up the specific warning light: the Body Computer detects the state of the brake pad wear associated with the presence of braking (signal from the brake pedal) which is prolonged (intermittent indications are ignored).Inertial switch state: the instrument panel receives a signal from the switch, lights up the relevant warning light and communicates the activation to the other nodes via the CAN network.Handbrake on: the warning light relating to the handbrake state is controlled by the specific switch; in addition, if this signal is associated with a particular speed threshold being surpassed, an acoustic signal is activated: the signal is sent via the CAN from the Body Computer.Low brake fluid: the function lights up the 'low brake fluid level' warning light on the instrument panel: the signal is sent via the CAN from the Body Computer.

General warning signal (check): the Body Computer contains a check function which controls a series of systems and components and lights up the appropriate warning light if a fault is detected; the following systems and/or components are controlled:

• Operation of inertia switch
• Exceeding of speed limit See E4080  TRIP COMPUTER
• Engine oil pressure sensor failure See E5030  PETROL ENGINE ELECTRONIC MANAGEMENT, See E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT
• Rain sensor failure See E3020  WINDSCREEN WASH/WIPE
• Diesel filter sensor failure See E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT
• Dusk sensor failure See E2010  SIDE LIGHTS / NO. PLATE LIGHTS
• Window safety system failure See E3050  ELECTRIC FRONT WINDOWS
• ABS, ESP warning light failure insufficient brake fluid level See E7020  ABS, See E7023  ESP]
• Electric steering fault See E7045  ELECTRIC STEERING
• Exterior lights failure: side, no. plate, rear fog, direction, brake See E2010  SIDE LIGHTS / NO. PLATE LIGHTS See E2020  DIRECTION INDICATORS / HAZARD WARNING LIGHTS See E2021  BRAKE LIGHTS, See E2031  REAR FOG LAMPS
• Brake lights fuse failure See E2021  BRAKE LIGHTS
• Engine coolant temperature sensor failure See E5030  PETROL ENGINE ELECTRONIC MANAGEMENT, See E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT
• Robotized gearbox failure See E7051  ROBOTIZED GEARBOX

Other warning lights are located on the instrument panel, but managed directly by other electronic units:

• Air Bag failure warning light;
• passenger Air Bag disablement warning light;
• injection failure warning light

For more details  Characteristic of working principle 5560  INSTRUMENT PANEL .

this diagram illustrates the operation of the warning lights not contained in other functions; the others are described and illustrated in the diagrams of the components to which they refer:

side lights  See E2010  SIDE LIGHTS / NO. PLATE LIGHTS main beam headlamps  See E2012  MAIN BEAM HEADLAMPS turn signals  See E2020  DIRECTION INDICATORS / HAZARD WARNING LIGHTS fog lights  See E2030  FOG LIGHTS rear fog lamps  See E2031  REAR FOG LAMPS doors open  See E2510  COURTESY LIGHTS recharging  See E5010  STARTING AND RECHARING EOBD injection system failure  See E5030  PETROL ENGINE ELECTRONIC MANAGEMENT See E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT minimum oil pressure  See E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT engine overheating  See E5030  PETROL ENGINE ELECTRONIC MANAGEMENT ,  See E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT heater plugs  See E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT Cruise Control  See E5060  CRUISE CONTROL CODE failure  See E7010  CODE ABS - EBD failure  See E7020  ABS ESP on/failure  See E7023  ESP Hill Holder on/failure  See E7023  ESP Air Bag failure  See E7030  AIRBAG passenger Air Bag disabled  See E7030  AIRBAG robotized gearbox failure  See E7051  ROBOTIZED GEARBOX electric steering fault  See E7045  ELECTRIC STEERING