2401103 - Introduction - EXTERIOR LIGHTING

The vehicle components and their location are illustrated below.
1 - Right front light cluster 2 - Left front light cluster 3 - Left front side light 4 - Right front side light 5 - Left rear light cluster 6 - Right rear light cluster 7 - Third brake light 8 - No. plate lights

The vehicle's exterior lighting system has been designed with two aims in mind:

  • to ensure maximum efficiency in terms of complying with international regulations which define the illumination specifications of the various components
  • to blend in with the design of the vehicle so that the various components reflect the image.
In particular, the front light cluster includes the separate function of the side light, dipped headlamp, main beam headlamp and fog lights in a single unit.

FRONT LIGHT CLUSTER (HEADLAMPS AND FOG LIGHTS)

This unit consists of:
1 - Main beam headlamp 2 - Side light 3 - Dipped headlamp 4 - Fog light 5 - Direction indicator 6 - Adjustment screw for vertical headlamp axis 7 - Adjustment screw for horizontal headlamp axis 8 - Adjustment motor 9 - Connection

FRONT LIGHT CLUSTER (HEADLAMPS AND FOG LIGHTS)

The front light cluster is constructed using a fixed, transparent lens reflection technology for all functions (side light, dipped headlamp, main beam headlamp and fog light).It contains special housings where the parabolas and the vertical and horizontal adjustment units with direct systems without idlers are mounted. The unit incoroporates an automatic type electric corrector (electric motor) for controlling the headlamp alignment with the controls in the dashboard. The reflecting parabolas are made from a metallic, heat resistant material and are covered in clear paint which has a protective function.

- Bulbs present:

  • H7 halogen for the dipped headlamps 12V-55W
  • H1 halogen for the fog lights 12V-55W
  • H1 halogen for the main beam headlamps 12V-55W*
  • All glass W5W for the side lights 12V-5W
  • P21W for the direction indicators 12V-21W
There is a dimmer in front of the dipped headlamp and fog light bulb to prevent direct and static rays.The (glass) lens cover is made from colourless, lacquered, polycarbonate which has undergone scratch-resistance treatment;.There are two openings with cover at the rear; one for access to the main beam headlamp, the other for access to the other three bulbs (side light, main beam headlamp, fog light).

CONNECTOR PIN OUT

The connector pin out is illustrated below.
1 - Dipped headlamp 2 - fog light 3 - Main beam headlamp 4 - Side light 5 - Direction indicator 6 - Headlamp alignment motor 7 - Headlamp alignment motor 8 - Earth 14 - Earth

REAR LIGHT CLUSTER

The light cluster carries out the following lighting functions:

  • Side light
  • Brake light
  • Reversing light
  • Direction indicator
  • Rear fog lamp
1 - Side/brake light 2 - Reversing light 3 - Direction indicator 4 - Rear fog lamp 5 - Connector

REAR LIGHT CLUSTER

The rear light cluster consists of a two tone lens cover (red and transparent); there is a round shaped distorter by the side/brake and rear fog lights.

Bulbs present:

  • P21/5W twin filament for side/brake lights 12V- 5W/21W
  • P21W for reversing lights 12V - 21W
  • PY21W with orange lens cover for direction indicators 12V - 21W
  • P21W for rear fog lamps 12V - 21W

CONNECTOR PIN OUT

The connector pin out is illustrated below.
1 - Side light 2 - Brake light 3 - Direction indicator 4 - Reversing light 5 - Earth 6 - Rear fog lamp

SIDE DIRECTION INDICATOR

The side direction indicator is illustrated below.
1 - Grey casing 2 - Orange lens cover 3 - Bulb 12V - 5W 4 - Bulb holder

SIDE DIRECTION INDICATOR

In order to replace the bulb, the lens cover must be extracted, manually, releasing the retainers and turning the bulb holder in an anti-clockwise direction and extracting it from the lens cover; then keep the bulb

NO. PLATE LIGHT

The no. plate light is illustrated below.
1 - Lens cover 2 - Clip 3 - All glass bulb 12V - 5W

NO. PLATE LIGHT

The number plate light function is achieved by means of two single bulb lights fitted by a metal spring. Each light has a 12V - 5W all glass bulb.To replace the bulb, extract the lens cover, manually, releasing it from the clip; then keep the bulb, releasing it from the side retainers

ADDITIONAL BRAKE LIGHT

The additional brake light function is achieved through a multi-bulb lamp and light beam coming out of the rearscreen serigraphy, fitted on the upper part of the tailgate.
1 - Casing 2 - Lens cover 3 - Spring 4 - Bulb holder casing 5 - 12V- 5W all-glass bulb 6 - Connector seat

ADDITIONAL BRAKE LIGHT

The outer casing is made of grey plastic, it contains the bulb holder which is in one piece and is press-fitted to the light casing. With the circuit activated, the inner races supply 5 12V - 5W all glass bulbs.

SIDE LIGHTS AND NO. PLATE LIGHTS

The side lights are switched on when the ring nut on the steering column switch unit left lever is turned to the first position. Characteristic of working principle 5050  SCREEN WASHERS AND HEADLAMP WASH/WIPEThe switching on of the side lights is managed by the Body Computer: the operation of the side lights is activated by the enablement signals with the ignition on and the command from the steering column switch unit. The activation and/or deactivation information is sent via the ACN: in this way the 'Side Lights' warning light in the instrument panel is also switched on. The instrument panel also activates the serigraphy night lighting.The 'parking lights' function is only switched on with the ignition OFF by pressing the dedicated button in the control panel to the left of the steering wheel: engagement is signalled by a 'roger beep'. By turning the left steering column switch unit lever (in the same way as for activating the direction indicators) it is possible to choose whether to switch on the side lights on both sides of the vehicle (lever in central position) or on one side only (lever downwards to select the left side, lever upwards to select the right side).

DUSK SENSOR

The side lights and dipped headlamps are activated automatically, via the dusk sensor, if the AUTO function is set on the steering column switch unit.The dusk sensor is an infrared device that operates at different levels of sensitivity. When the dusk sensor is activated, a message appears on the control panel display that indicates a preset sensitivity level (from 1 to 3). This intensity may be adjusted using the 'Mode +' and 'Mode -' keys.

LOCATION

The dusk sensor, integral with the rain sensor, is described below. it is located on the windscreen immediately below the rear view mirror.
A - Rain/dusk sensor B - Connection: CONNECTOR PINOUT 1- Supply controlled by ignition 2 - Earth 3 - A-BUS serial line

Follow me home

The 'Follow me home' function is designed to keep the dipped headlamps and the side lights on after the engine has been switched off (key in OFF position) for a time of 30 seconds or multiples thereof. The funciton is switched on by operating the flasher lever within 2 minutes of turning the ignition OFF: each time the lever is operated the time the lights remain on increases by 30 seconds up to a maximum of 210 secs. Turning the ignition ON or keeping the flasher lever pulled for more than 2 seconds, deactivates the function.

DIPPED HEADLAMPS

The vehicle is equipped with two dipped headlamps in the light clusters.The dipped beam headlamps are switched on through the steering column switch by turning the specific ring to the position after the side lights.A special relay, managed by the Body Computer, controls the engagement of the dipped headlamps with the enablement signals with the ignition ON and the specific signal from the steering column switch unit. With the dipped headlamps on, the simultaneous presence of main beam headlamp and fog light commands disables the dipped headlamps. If one of these two commands is then deactivated, with the dipped headlamps control on, the dipped headlamps are switched back on again.

MAIN BEAM HEADLAMPS

The vehicle has two main beam headlamps in the light cluster.

The main beam headlamps are switched on by the steering column switch unit:

  • when the dipped beam headlamps are on, by pressing the lever towards the dashboard (stable mode)
  • in 'flash' mode, by pulling the lever towards the steering wheel (unstable mode)
A special relay, managed by the Body Computer, controls the engagement of the dipped headlamps with the enablement signals with the ignition ON and the specific signal from the steering column switch unit. The activation and/or deactivation information is sent via the CAN: in this way the main beam warning light in the instrument panel is also switched on.
for legal reasons, if the dusk sensor is activated, only the flasher can be activated and the main beam headlamps cannot be switched on constantly; the AUTO function must be switched off to activate these lights.

DIRECTION INDICATORS/ HAZARD WARNING LIGHTS

The left and right direction indicators are operated by raising or lowering the left lever on the stalk unit. the function is activated with the ignition key in the ON position.The hazard warning lights (right and left direction indicators operated simultaneously) are turned on by the pressing a button in the centre of the dashboard between the climate control system controls and both the direction indicators come on at the same time. An LED in the back of the button also comes on flashing in synchronization with the outside lights; the function is always activated.The switching on of the direction indicators / hazard warning lights is managed by the Body Computer which also controls the flashing frequency which is sent to the other connectors via the CAN serial network. In this way, the two direction indicator warning lights in the instrument panel are also lit up; in addition, as well as the activation of the lights, the system also produces a low frequency auditory signal.

BRAKE LIGHTS

The brake lights are located at the rear in the side lights and in the central third brake light.These are operated whenever the brake pedal is pressed, by means of a switch on the pedal itself.The switch fitted on the pedal assembly consists of two contacts which supply two signals: the first which is the 'N.A.' type recognizes the position of the brake pedal when it differs from the rest position, i.e. pedal pressed; the second, which is the 'N.C.' type, recognizes the brake pedal in the rest position.The lights are switched on by the N.A. contact (pedal pressed). The 'N.A.' switch information is sent, in particular to the engine management control unit and the ABS control unit.whilst the information for the N.C. switch assists the engine management control unit, in particular for the Cruise Control.
1 - Brake switch on pedal unit 2 - Switch wiring diagram

BRAKE LIGHTS

Position of switch 1 - 3 N.C. contact (pedal released).Position of switch 2-4 N.A. contact (pedal pressed).

REVERSING LIGHTS

The vehicle is equipped with two reversing lights located in the rear lights.which are operated each time reverse gear is engaged through the special switch on the outside of the gearbox casing.The signal that the reversing light has been switched on is managed by the Body Computer which forwards this information to the steering column switch unit for the automatic operation of the rearscreen wiper and to the parking sensor control unit

FOG LIGHTS

The vehicle has two additional fog lights in the front bumper which are activated through the dedicated button in the control panel to the left of the steering wheel. when the lights are on the warning light in the instrument panel comes on.

A special relay, managed by the Body Computer, controls the engagement of the fog lights: the relay is energized by:

  • enablement signal with the ignition ON
  • control signal coming from the switch
  • side lights on signal.
In addition, if the side lights are switched off, the fog lights are also switched off even if the button is pressed. When the side lights are switched on again, the fog lights do not come on again automatically, but only if the appropriate button is pressed again. If the ignition key is switched OFF and then turned back to the ON position, the operating button must be pressed once again in order to turn the fog lights back on.

REAR FOG LAMPS

The vehicle is equipped with two bright rear fog lamps located in the rear light clusters activated using the special button in the control panel to the left of the steering wheel; when the lights are on the warning light in the instrument panel comes on.

The switching on of the rear fog lamp is managed by the Body Computer: it is activated in the following conditions:

  • enablement signal with the ignition ON (INT);
  • control signal coming from the switch;
  • dipped headlamps or fog lights on signal.
In addition, if the dipped headlamps are switched off, the rear fog lamps are also switched off even if the button is pressed. When the lights are switched on again, the rear fog lamps still do not come on automatically, but only by pressing the button again. If the ignition is OFF and then turned ON again, the button must be pressed again in order to switch the rear fog lamps on.

lights check

The correct operation of the following lights:

  • side and no. plate lights
  • direction indicators
  • side brake lights
  • rear fog lamps: is controlled by the Body Computer lights check function.

The following is checked for each of the circuits:

  • open circuit or missing bulb
  • short circuit to earth (bulb short circuit or wiring short circuit to earth)
  • short circuit to Vbatt (wiring short circuit to Vbatt)
If one of the situations described above is detected, the Body Computer notifies the CAN of the failure state: the special 'lights failure' warning light in the instrument panel comes on and, at the same time, the information is shown on the display.In addition, for the brake lights. the continuity of the fuse protecting the switch on the brake pedal is also checked.If one of the rear side light bulbs is faulty, the brake light on the same side comes on less brightly when the side lights are switched on in order to simulate the side light.In addition, the system detects any faults in the dusk sensor: if a problem is found, the general failure warning light in the instrument panel comes on and the information is shown in the display.If there is a problem with one of the direction indicators, at the same time as the fault is displayed, the flashing frequency of visual display and the acoustic signal is increased; the flashing frequency of the exterior lights and the LED in the hazard warning lights button, on the other hand, remains unchanged.

HEADLAMP AGLINMENT CORRECTOR

The headlamp beam orientation in accordance with the load is adjusted via the adjustment device located directly in the headlamps; it tilts them as appropriate in order to lower the light beam if the vehicle is particularly laden, and raises it when the load decreases. The device is enabled only when the dipped beam headlamps are on.

Two buttons, located on the control panel to the left of the steering wheel, allow the adjustment of the headlamps in 4 vertical positions ranging from 0 to 3:

  • position 0: one or two persons on the front seats, full fuel tank, car fully equipped and in running order;
  • position 1: five persons;
  • position 2 - five persons with luggage compartment full (about 50 kg);
  • position 3 - driver and 300 kg load, all stowed in boot (full load).
These 4 positions are produced using the '+' and '-' buttons which raise and lower the light beam, respectively.The set value is memorised and displayed on the instrument panel. when the dipped headlamps are switched off, the movement is disabled and the current position of the headlamp parabolas maintained; when the dipped headlamps are switched back on, the 'headlamp alignment corrector' symbol in the display is lit up with the number of the last position memorized.

HEADLAMP AGLINMENT CORRECTOR

The control logic described above is managed directly by the instrument panel node.If there is a fault, the system positions the headlamps in such a way that the drivers of oncoming vehicles are not dazzled.