HEADLIGHT ALIGNMENT ADJUSTMENT - DESCRIPTION

DESCRIPTION

The adjustment of the headlamp light beam according to the load is carried out by means of a special device (located inside the front light cluster) which tilts it appropriately, lowering the light beam if the vehicle is heavily laden and raising it if the load lessens.

A special wheel, located in the controls to the left of the steering wheel, allows the adjustment of the headlamps in 4 vertical positions from 0 to 3:

- position 0: one or two persons in the front seats, full fuel tank, fully equipped (vehicle in running order);

- position 1: five persons;

- position 2: five persons with full luggage compartment (about 50 kg);

- position 3: driver and 300 kg load, all stowed in the luggage compartment (full load);

The device is enabled only with the dipped beams on.

The relay which controls the engagement of the dipped headlamps also supplies the adjustment motors inside the headlamps; this relay for switching the dipped headlamps on is managed by the Body Computer: the relay energizing is activated by TEG inserted (INT) enablement signals and by the steering column switch unit dipped headlamps control.

Gas discharge headlamps

DESCRIPTION

The vehicle is fitted with two GAS DISCHARGE headlamps.

The electronics in each of the two headlamps switches the gas discharge bulbs on and off at the times defined by the software and in accordance with international legislation.

The system for each lamp comprises an igniter located at the base of the bulb and a ballast located in the lower part of the lamp.

The left lamp is the master control unit whilst the right one carries out a slave role. The master acquires the command for the dipped headlamps, the vehicle speed and from the potentiometers located on the wheel axles.

Depending on the inputs, the control unit controls the relevant adjustment motor, located in the headlamps, directly and tilts it as appropriate.

For more details

See descriptions 5540 EXTERIOR LIGHTING

on versions with gas discharge headlamps, the light beam is adjusted automatically and there is no activation of the selector in the panel on the left side.

The device is enabled only with the dipped beams on.

The electronics for the two headlamps receive a supply from a fuse which protects other ignition-controlled power supplies.