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