3239232 - Introduction - INSTRUMENT PANEL

GLOSSARY

LCD

Liquid Crystal Display This consists of elements where, after the electric current passes through, the transparency is altered, composing figures or letters according to the basic electrical circuit.

The gauges and warning lights on the instrument panel are clustered into four different modules.

  • speedometer
  • revs counter
  • fault display
  • central module
The first three are located behind the steering wheel, the fourth in the middle of the faciaThe modules fitted to different versions and engine versions differ only in the type of gauge scale.Some warning lights may not be connected in certain specifications and versions.All the instruments (dials and gauges) are lit up with the ignition switched ON.In the 'night' conditions (side lights on), the brightness can be adjusted to three levels by an external button.Some specifications come in a sport version with white dials, these are not illuminated when the ignition is switched on, only when the side lights are switched on.
1, Speedometer 2, Rev counter 3, Fault display 4, Central module 5, lighting dimmer button

SPEEDOMETER

The module includes

  • electronic speedometer
  • mileometer and trip counter
  • outdoor temperature gauge
  • warning lights
1, Electronic speedometer 2, Mileometer/outdoor temperature gauge 3, Water in diesel warning light 4, Seat belt warning light 5, Brake pad wear warning light 6, Glow plug warning light 7, Passenger Air Bag disabled warning light The speedometer signal comes from the ABS control unit; there are three 'repeater' outputs of the signal for other systems; only two are used for the electronic fuel injection and climate control system. The gauge display is produced by an electronic circuit inside the module.The milometer consists of an LCD which simultaneously displays the total and trip mileage.An external key is used to reset the trip counter and display outdoor temperature.
If the battery is disconnected, the trip meter is zeroed.

External temperature (in ° C) can be displayed instead of mileage by adopting the following procedure:

  • press the button for longer than 2 seconds to reset the trip counter
  • press the button for less than 2 seconds to display outdoor temperature
  • if outdoor temperature is lower than + 3 ° C, the system automatically switches to the temperature display, which flashes and shows an ice symbol to indicate the danger of an icy road surface. This message remains for 10 seconds and is repeated after 20 seconds.
This message can be cancelled by pressing the button and switching to the trip counter display. The outdoor temperature level comes from the climate system control unit (see  See subassembly 5540   EXTERIOR LIGHTING )
Because an outdoor temperature signal is not produced (in versions with heater), the temperature is not shown on the outdoor temperature display.

Resetting mileage

The total mileage counter can be reset only once - during the first 200 km - following handling during production or prior to delivery to the Customer. In the case of a new instrument, the mileage reading is preceded by an 'F' (e.g. 'F00199'). After 200 km, the letter F disappears automatically and the reading becomes '000201'.If the reset button is pressed for longer than 10 seconds before 200 km, the letter H disappears and the counting restarts from '000000'. This operation can only be carried out once!

Warning lights

The following warning lights are present on the speedometer:

  • seat belt
The warning light comes on for about 15 seconds when the ignition is turned on, regardless of whether the seat belts are done up or not, in order to remind the driver of this requirement.
In a version available in some markets, the warning light goes off when the driver's seat belt has been done up.
- brake pad wearWhen the ignition is turned on, the warning light comes on for about 4 seconds as a self-test, then goes out- presence of water in diesel filter (JTD only): the warning light comes on if the specific sensor detects the presence of water in the diesel filter. - glow plug preheating (see  See assembly 10   ENGINE ) - passenger air bag disablement (see  See assembly 5580C   air bag system )

Warning light test

The module internal electronic circuits also manage a warning light test function for all modules: upon start-up (key turned on), all the warning lights and leds are turned on for about 4 seconds to check they are workingIn the case of the mileometer (LCD), all the lcd segments are turned on for about 4 seconds to check they are working.

Replacing bulbs

Two bulbs on the back of the module light the module itself, and another lights the display. These bulbs can be replaced by unscrewing the bulb holder.
1, Connector A 2, Connector B 3, Instrument lighting bulb holder 4, Display light bulb holder

Speedometer module pin-out

Refer to the illustration
Connector A, 16-way 1, Earth 2, N.C. 3, Check module warning light test 4, Central module warning light test 5, Seat belt warning light 6, N.C. 7, Outdoor temperature signal input 8, N.C. 9, Direct supply 10, Ignition-operated supply 11, Speedometer signal input 12, Central module lighting 13, Water in diesel filter warning light 14, Speedometer signal output (N.C.) 15, Speedometer signal output (to i.e. control unit) 16, Speedometer signal output (to air conditioner control unit) Connector B, 12-way 1, Heater plugs warning light 2, Passenger Air Bag disabled warning light 3, Rev counter warning light test 4, Rev counter module lighting 5, Side light signal 6, Lighting dimmer signal 7, N.C. 8, N.C. 9, N.C. 10, N.C. 11, Brake pad wear warning light 12, Trip counter reset signal

REV COUNTER

The module includes:

  • electronic rev counter
  • warning lights
1, Electronic rev counter 2, Left direction indicators warning light 3, Right direction indicators warning light 4, Injection system failure warning light (* for EURO 3 versions) 5, Recharging warning light 6, Low oil pressure warning light 7, Main beam headlamps warning light 8, Lighting failure warning light 9, Rear fog lamp warning light 10, Side light/dipped beam warning light 11, Turn signal warning light for trailer 12, Fog lamp warning light The engine management unit (specific to each engine type) produces an rpm signal.The gauge display is produced by an electronic circuit inside the module.

Warning lights

  • left turn signals
  • right turn signals
  • recharging
  • minimum oil pressure
  • injection system failure

when the ignition is switched on, the warning light comes on, controlled by the engine management control unit, for about 4 seconds as a self-test; if no faults are found, it goes out after this period. On the EOBD versions, the system conducts a continuous diagnosis of the components relating to emissions and indicates to the user, by the specific warning light on the instrument coming on, the following conditions of deterioration:

  • malfunction of the catalytic converter, which does not convert the pollutants produced by the engine;
  • malfunction of the Lambda sensors (oxygen sensors);
  • lack of combustion ('misfire'), so unburnt fuel reaches the catalyzer which is damaged by chemical reactions which result in a rapid increase in temperature.
Prompt repair of the problem which has caused the warning light to come on is vital in accordance with the legal requirements of the traffic regulations of the country in question. For further details  Characteristic of working principle 1056  PETROL INJECTION SYSTEM .
The warning light is AMBER on the 'EOBD' versions, while it is still red on versions which only detect 'injection system fault'.

  • light failure (check)
when the ignition it turned on, the warning light comes on for about 4 seconds as a self-test.- main beam headlamps- side lights/dipped beams- rear fog lamps- fog lightstrailer lights (predisposition)

Exterior lighting check

The rev counter module contains an exterior lighting check.

The following circuits are checked by electronic components (microrelays):

  • side lights
  • number plate lights
  • rear fog lamps
  • brake lights (not 3rd brake light).

The following faults are detected:

  • blown bulb
  • bulb s.c. to earth or positive
  • incorrect bulb (5W bulb instead of 21W)
A single light failure warning light comes on on the dashboard for all anomalies in the various circuits. When the ignition is turned on, the warning light comes on for about 4 seconds as a self-test, then goes out.

Replacing bulbs

two bulbs on the back of the module are used to light the module itself. These bulbs can be replaced by unscrewing the bulb holder.The main beam warning light bulb can also be replaced.
1, Connector A 2, Connector B 3, Instrument lighting bulb holder 4, Main beam warning light bulb holder

Rev counter module pin-out

Refer to the illustration
Connector A, 20-way 1, Right rear side light 2, Left front side light output 3, Side light signal 4, Left rear fog lamp signal 5, Brake light signal 6, Side light for trailer 7, Rear fog lamp for trailer 8, Dipped beam enablement 9, Left rear side light 10, Direct power supply for check (left branch) 11, Left number plate light 12, Right number plate light 13, Right brake light 14, Earth 15, Supply controlled by the ignition 16, Direct supply for check (right branch) 17, Right rear fog lamp 18, Left brake light 19, Brake light for trailer 20, Right front side light Connector B, 16-way 1, Rear fog lamps warning light 2, Trailer direction indicators warning light 3, Rev counter module lighting 4, Main beam headlamps warning light 5, Low oil pressure warning light 6, Engine rpm signal input 7, Recharging warning light 8, Engine rpm signal output 9, Left direction indicators warning light 10, Rev counter module warning light test 11, N.C. 12, Automatic transmission display (N.C.) 13, N.C. 14, Fog lamp warning light 15, Fuel injection/EOBD fault warning light 16, Right turn signal warning light

REV COUNTER (Selespeed only)

The module includes:

  • electronic rev counter
  • warning lights
  • SELESPEED display
1, Electronic rev counter 2, Left direction indicators warning light 3, Right direction indicators warning light 4, Injection system failure warning light (* EURO 3 versions) 5, Recharging warning light 6, Low oil pressure warning light 7, Main beam headlamps warning light 8, Lighting failure warning light 9, Rear fog lamp warning light 10, Side light/dipped beam warni
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CONSTRUCTION FEATURES

The gauges and warning lights on the instrument panel are clustered into four different modules.

  • speedometer
  • rev counter
  • fault display
  • central module
  • infocenter module
The first three are located behind the steering wheel, the fourth and fifth in the middle of the faciaThe modules fitted to different versions and engine versions differ only in the type of gauge scale.Some warning lights may not be connected in certain specifications and versions.All the instruments (dials and gauges) are lit up with the ignition switched ON.In the 'night' position (side lights on), the brightness can be adjusted to three levels by an external button.Some specifications come in a sport version with white dials, these are not illuminated when the ignition is switched on, only when the side lights are switched on.
1 - Speedometer 2 - Rev counter 3 - Fault display 4 - Central module 5 - INFOCENTER module 6 - Light adjustment button .
This version describes the instrument configuration adopted in the specifications without the VDC option. Versions with VDC are covered by a separate description.

speedometer

The module includes

  • electronic speedometer
  • milometer and trip meter
  • warning lights
1 - Electronic speedometer 2 - Milometer 2 - OEBD warning light 4 - passenger airbag deactivation warning light 5 - Brake pad wear warning light 6 - Seat belts fastened warning light The speedometer signal comes from the ABS control unit; there are 'repeater' outputs of the signal for other systems; only two are used for the electronic fuel injection and climate control system.The gauge display is produced by an electronic circuit inside the module.The milometer consists of an LCD which simultaneously displays the total and trip mileage.A button on the outside zeros the trip meter.
If the battery is disconnected, the trip meter is zeroed.

Resetting mileage

The total mileage counter can be reset only once - during the first 200 km - following handling during production or prior to delivery to the Customer.In the case of a new instrument, the mileage reading is preceded by an 'F' (e.g. 'F00199'). After 200 km, the letter F disappears automatically and the reading becomes '000201'.If the reset button is pressed for longer than 10 seconds before 200 km, the letter H disappears and the counting restarts from '000000'. This operation can only be carried out once!

Warning lights

The following warning lights are present on the speedometer.Brake pad wear warning lightDuring starting, when the ignition is turned on, the warning light comes on as a self-test, then goes out.Eobd warning light (for both petrol and jtd engines, starting from september 03)The AMBER warning light is activated by the engine control unit for about 4 seconds (check) at the Key On.The EOBD (European On Board Diagnosis) system carries out continuous diagnosis of the car's petrol fuel system components relating to emissions and indicates any deterioration of these components by the warning light in the instrument panel coming on.

The aim of the system is:

  • keeping the efficiency of the system under control;
  • signalling an increase in emissions due to a vehicle malfunction;
  • signalling the need to replace deteriorated components.
Prompt repair of the problem which has caused the warning light to come on is vital in accordance with the legal requirements of the traffic regulations of the country in question. For further details  Characteristic of working principle 1056  PETROL INJECTION SYSTEM or  Characteristic of working principle 1060  DIESEL FUEL INJECTION

Warning light test

The module internal electronic circuits also manage a warning light test function for all modules: upon start-up (key turned on), all the warning lights and leds are turned on for about 4 seconds to check they are workingIn the case of the mileometer (LCD), all the lcd segments are turned on for about 4 seconds to check they are working.

Replacing bulbs

Two bulbs on the back of the module light the module itself, and another lights the display. These bulbs can be replaced by unscrewing the bulbl holder.
1- Connector A 2 - Connector B 3 - Instrument lighting bulb holder 4 - Display light bulb holder

Speedometer module pin-out

Refer to the illustration.
Connector A, 16-way
PINSIGNAL
1Earth
2Seat belts warning light input
3Brake fluid/handbrake on signal for check
4Panel warning lights autotest operation
5Engine oil sensor +
6Passenger Air Bag disabled warning light
7Brake fluid/handbrake signal input
8INFOCENTER serial
9Battery +
10Ignition +
11Speedometer signal from ABS
12Panel lighting adjustment
13Engine oil sensor -
14Rep. speedometer
15Rep. Speedometer
16Instant consumptioin
Connector B, 12-way
PINSIGNAL
1EOBD failure
2Fuel level gauge control
3Left front door
4Rev counter lighting adjustment
5Side/parking lights on control
6Instrument lighting adjustment button
7Reserve warning light control
8Engine rpm
9Fuel level gauge
10Fuel level gauge
11Brake pad wear
12Trip meter zeroing button

revs counter

The module includes

  • electronic rev counter
  • warning lights
1 - Electronic rev counter 2 - Left direction indicators warning light 3 - Right direction indicators warning light 4 - Heater plugs warning light (JTD only) 5 - Water in diesel filter warning light (JTD only) 6 - Main beam headlamps warning light 7 - Lights failure warning light 8 - Rear fog lamps warning light 9 - Side lights/dipped headlamps warning light 10 - Trailer direction indicators warning light 11 - Fog lights warning light An rpm signal is produced by the engine management unit, which is different for each version.The gauge display is produced by an electronic circuit inside the module.

Warning lights

The following warning lights are present on the rev counter:

  • left turn signals
  • right turn signals
  • lights failure (check); when the ignition it turned on, the warning light comes on for about 4 seconds as a self-test.
  • main beam headlamps
  • side lights/dipped beams
  • rear fog lamps
  • fog lights
  • trailer lights (predisposition)
heater plugs warning light (JTD only)water in diesel filter warning light (JTD only)

Exterior lighting check

The rev counter module contains an exterior lighting check.

The following circuits are checked by electronic components (microrelays):

  • side lights
  • number plate lights
  • rear fog lamps
  • brake lights (not 3rd brake light).

The following faults are detected:

  • blown bulb
  • bulb s.c. to earth or positive
  • incorrect bulb (5W bulb instead of 21W)
A single light failure warning light comes on on the dashboard for all anomalies in the various circuits. During starting, when the ignition is turned on, the warning light comes on for about 4 seconds as a self-test, then goes out.

Replacing bulbs

Two bulbs on the back of the module are used to light the module itself. These bulbs can be replaced by unscrewing the bulbl holder.The main beam warning light bulb can also be replaced.
1- Connector A 2 - Connector B 3 - Instrument lighting bulb holder 4 - Main beam warning light bulb holder

Automatic transmission failure warning light

The red warning light located in the rev counter comes on in the case of faults or critical driving conditions (e.g. transmission fluid overheating).During starting, when the ignition is turned on, the warning light comes on for about 4 seconds as a self-test, then goes out to show the system is working properly.If the warning light begins to flash and stays on, the automatic transmission management system is faulty.If the warning light stays on with a fixed light, or if it comes on with a fixed light during driving, the transmission fluid is overheating.

Replacing bulbs

Two bulbs on the back of the module are used to light the module itself. These bulbs can be replaced by unscrewing the bulbl holder.The main beam warning light bulb can also be replaced.
1 - connector A 2 - connector B 3 - instrument lighting bulb holder 4 - main beam warning light bulb holder 5 - buzzer 6 - display light bulb holder

Rev counter module pin-out

Refer to the illustration.
Connector A, 20-way
PINSIGNAL
1 right rear side light
2 left front side light
3 side lights signal
4 left rear fog lamp
5 stop lights signal
6 trailer side light
7 trailer fog lamp
8 dipped beam enablement
9 left rear side light
10 direct power supply for check
11 left number plate light
12 right number plate light
13 right brake light
14 earth
15 supply controlled by the ignition
16 direct power supply for check
17 right rear fog lamp
18 left brake light
19 brake light for trailer
20 right front side light
Connector B, 16 way
PINSIGNAL
1 rear fog lamps signal
2 trailer turn signal warning light
3 rev counter module lighting
4 main beam warning light
5 heater plugs warning light
6 engine rpm signal input
7 water in diesel filter warning light
8 engine rpm signal output
9 left direction indicators warning light
10 engine rpm repetition
11 N.C.
12 serial line for Q-System/Selespeed gearbox
13 Q-System/Selespeed gearbox buzzer
14 fog lamp warning light
15 engine rpm repetition
16 right trailer direction indicators warning light

FAULT DISPLAY

The module includes the following warning lights.
1 - Cruise Control warning light 2 - Insufficient brake fluid/handbrake warning light 3 - ABS warning light 4 - Insufficient engine oil pressure warning light 5 - Recharging warning light 6 - Air Bag failure warning light 7 - Code failure warning light 8 - Door open warning light

Air bag failure warning light

When the ignition is turned on, the warning light comes on, controlled by the relevant control unit, for about 4 seconds as a self-test; if no faults are found, it goes out after that period.  Characteristic of working principle 5580C  air bag systemThe warning light also comes on in the case of a faulty connection or if the circuit conecting warning light and control unit is short circuited to earth. The warning light is 'smart', i.e. its inner control circuit checks that the connection is correct.

Code failure warning light

The warning light comes on upon a command from the Code control unit for 1 second when the ignition is turned, then it goes off to indicate that the key has been recognised and the system is efficient (see )  Characteristic of working principle 5580E  anti-theft deviceAbs failure warning light When the ignition is turned on, the warning light comes on, controlled by the ABS control unit, for about 4 seconds as a self-test; if no faults are found, it goes out after that period.  Characteristic of working principle 3340  A(B.S. ANTI-LOCK BRAKING SYSTEM .)The warning light also comes on in the case of a faulty connection or if the circuit conecting warning light and control unit is short circuited to earth. The warning light is 'smart', i.e. its inner control circuit checks that the connection is correct.Low brake fluid level and handbrake warning lightWhen the ignition is turned on, the warning light comes on, controlled by the ABS control unit, for about 2 seconds as a self-test; if no faults are found, it goes out after that period. If it comes on, during driving, together with the ABS failure warning light, it indicates a fault in the EBD braking system.  Characteristic of working principle 3340  A(B.S. ANTI-LOCK BRAKING SYSTEM .)If it comes on by itself, the brake fluid level is low or the handbrake is on.

Door open warning light

The warning light is only present on versions without INFOCENTER.
1 - Connector

Fault display pin-out

Refer to the illustration.
16-way connector
PINSIGNAL
1 CODE failure warning light
2 Earth
3 Cruise Control warning light
4 Low brake fluid/handbrake engaged signal
5 Earth
6 Door open warning light
7 Recharging warning light
8 ABS warning light
9 Air bag failure warning light
10 Earth
11EBD signal from ABS
12Earth
13 Supply controlled by the ignition
14Earth
15 Min. engine oil pressure repetition
16 Min. oil pressure warning light

central module

The module includes

  • fuel gauge, with reserve warning light
  • engine coolant temperature gauge, with maximum temperature warning light
  • analogue clock
1 - Fuel level gauge 2 - Reserve warning light 3 - Analogue clock 4 - Engine coolant temperature gauge 5 - Maximum temperature warning light The fuel level is displayed by an electronic circuit inside the module, which operates the gauge and also the warning light for the reserve (about 7 litres).The internal software 'dampens' the signal to prevent fluctuations.During starting, when the ignition is turned on, the warning light comes on for about 4 seconds as a self-test, then goes out.If it flashes and stays on, a fault has been detected in the connection or the level gauge.

Fuel refilling should not take place in the following two circumstances:

  • Ignition key in ON position (during the refillng),
  • Engine running (during the refilling)
  • In addition to compromising legal SAFETY aspects, the instrument is not allowed to recognize the refilling condition.
  • In these conditions it is made impossible for the gauge to indicate the actual level of fuel in the tank for periods of 20-30 minutes or more after the refilling.
The coolant temperature gauge is controlled directly by a sensor on the engine.The maximum temperature warning light is controlled by a sensor on the engine with another signal, independent of the gauge.During starting, when the ignition is turned on, the maximum temperature warning light comes on for about 4 seconds as a self-test, then goes out.The analogue clock consists of a face with hour and minute hands. It is electronic with a quartz oscillator. It is adjusted by means of a button inside the dial.

Replacing bulbs

Four bulbs on the back of the module are used to light the module. These bulbs can be replaced by unscrewing the bulbl holder.

The following two warning light bulbs can also be changed;

  • fuel reserve
  • maximum coolant temperature warning light
1 - Connector 2 - Instrument lighting bulb 3 - Maximum coolant temperature bulb holder 4 - Fuel reserve warning light bulb holder

Central module pin-out

Refer to the illustration.
12-way connector
relay Supply controlled by the ignition
relay Direct supply
3 Earth
4 Fuel level gauge (-)
5 Fuel level gauge (+)
6 Central module warning light test
7 Central module lighting
8 Rep. coolant temperature signal
9 maximum coolant temperature warning light
10 Engine coolant temperature gauge
11 Fuel level signal for engine management control unit
12 Rep. coolant temperature signal

Infocenter module

This is an ISTN, negative transreflective type display: the visible area is divided as illustrated in the diagram
1 - area dedicated to displaying the date and outside temperature or TRIP computer information 2 - area dedicated to displaying the icons (failure symbols) The display lighting is red plus a two-colour area (red/amber) reserved for the repetition of the fault warning light which can be adjusted to 6 settings.The selection/confirmation controls for the functions displayed by the infocenter are located near the climate control system controls and consist of 3 buttons (+/-/INFO); the SET function control button is located on the left steering column switch unit lever.The functions that can be selected using the INFO button can only be activated with the vehicle stationary, with the exception of the 'LIGHT DIMMER' and 'SPEED' functions.

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