HEADLAMP 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 rotary selector on the left side of the dashboard allows the headlights to be adjusted from positions 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 luggage compartment full;
• position 3 - seven or eight persons with luggage compartment full, or driver and maximum load, all in the luggage compartment.

The device is enabled only with the dipped beams on.

A special relay, located in the body computer, supplies the adjustment motors incorporated inside the headlights.

on versions with gas discharge headlamps, the light beam is adjusted automatically and there is no rotary selector on the left side

Description

The vehicle is fitted with two GAS DISCHARGE headlamps.

The function in question is managed by electronics inside the two headlamps by means of two sensor (potentiometer) signals, located on the wheel axles that measure the front and rear geometry.

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

The device is enabled only with the dipped beams on.

The relay which controls the engagement of the dipped headlamps < R1 > also supplies the geometry sensors, whilst the electronics for the two headlamps is supplied by the line for a specific fuse.

See E2011 DIPPED HEADLAMPS

on versions with gas discharge headlamps, the light beam is adjusted automatically and the two buttons in the left panel are not activated.

The headlamp electronic control units have an autodiagnostic function. When a diagnostic tester is connected to these control units, via the diagnostic connector on the left side of the dashboard, self-diagnosis data can be read (parameters, errors) or the available active diagnostic tests can be carried out.