Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat Croma Factory Service Manual (2005-2010)19 · Wiring diagrams and electrical functions
19 · Electrical

Instrument panel - description

Make
Fiat
Model
Croma Factory Service Manual
Year
2005–2010
Section
Instrument panel › Instrument panel - description
Wiring diagrams and electrical functionsInstrument panel - description

INSTRUMENT PANEL - DESCRIPTION

The panel is installed behind the steering wheel.

Its position guarantees maximum visibility/legibility of the information for the driver in all vehicle usage conditions (day/night) without reflections, distortions or double images.

The control panel is available in Comfort version and contains:

- electronic speedometer

- electronic rev counter

- coolant temperature gauge with overheating warning light

- fuel level gauge with reserve warning light;

- warning lights

The instrument panel is a CAN node through which information is exchanged with the Body Computer and with the other electronic units.

Speedometer: its function allows the vehicle speed to be displayed on the instrument panel. This information is obtained from the ABS control unit via the Body Computer.

Rev counter: 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: this function includes the display and storage of the mileometer and trip counter. Mileage information is processed by the Body Computer. A button on the panel zeros the trip counter by means of a counter.

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.

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.

At every key on the engine coolant overheating warning is checked by a continuous control signal via the dedicated red warning light.

Engine oil pressure sensor: 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.

Hanbrake applied: the warning light for the handbrake status is controlled by a specific switch; in addition, if a given speed level is exceeded in conjunction with this signal, a warning signal is activated:

Insufficient brake fluid level 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. The switch is normally closed when brake fluid level is maximum.

The ON/OFF switch is monitored only when the key is inserted and turned ON. When brake fluid level is low, the contact closes or opens to send an earth signal to the body computer.

General failure signal (check): The Body Computer contains a function that monitors a set of systems and components and turns on a warning light if a fault is detected. The following systems are monitored:

- TMPS (system fault and tyre signals)

See E7060 TYRE INFLATION PRESSURE CONTROL SYSTEM

- Inertia switch operation

See E3040 CENTRAL LOCKING

1.8, 2.2

See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT

1.9 JTD 8v, 1.9 JTD 16v, 2.4 JTD 20v

See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT

All versions

- Engine oil pressure sensor failure

1.8, 2.2

See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT

1.9 JTD 8v, 1.9 JTD 16v, 2.4 JTD 20v

See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT

All versions

- Rain sensor fault (automatic windscreen wiper mechanism not available)

See E3020 WINDSCREEN WASH/WIPE

- Dusk sensor failure

See E2010 SIDE LIGHTS / NO. PLATE LIGHTS

See E2011 DIPPED HEADLAMPS

- Parking sensor failure

See E3090 PARKING SENSOR

- Window antipinch system failure

See E3050 ELECTRIC FRONT WINDOWS

See E3051 ELECTRIC REAR WINDOWS

1.9 JTD 8v, 1.9 JTD 16v, 2.4 JTD 20v

- Pollution filter blocked signal

See E5070 FAP PARTICLE FILTER SYSTEM

All versions

Light failure signal: The Body Computer contains a function that monitors a set of systems and components and turns on a warning light if a fault is detected.

The following systems are monitored:

- side light, number plate light, rear fog lamp, direction indicator, brake light faults

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

For more details,

See descriptions 5560 INSTRUMENTS

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

Parts & tools for this job For 2005 Fiat Croma

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