HEADLIGHT ALIGNMENT ADJUSTMENT DESCRIPTION

2.0 16V JTD, 2.2 16V JTD · MY 2005

The adjustment of the light beam for the headlamps depending on the load is produced using the adjustment device located directly on the headlamps. This device tilts the light beam in order to lower it if the vehicle is particularly laden or to raise it if the load lessens.

A rotary selector on the left side of the dashboard allows the headlights to be adjusted in four positions:

- 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 laden;

- position 3 - seven or eight persons with luggage compartment laden, or driver and maximum load, all in the luggage compartment.

Adjust the alignment of the light beams each time the weight of the load transported changes.

The device is enabled only with the dipped beams on.

The body computer supplies the adjustment motors incorporated in the headlamps.

On the version with gas discharge headlamps the light beam is adjusted automatically: there is no rotary selector on the left side of the dashboard.

2.0 16V JTD, 2.2 16V JTD · Gas discharge headlamps, MY 2005

The vehicle is fitted with two GAS DISCHARGE headlamps.

The function in question is managed by an electronic device 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 device which controls the engagement of the dipped headlamps also supplies the geometry sensors, whilst the electronics for the two headlamps is supplied by a line protected by a specific fuse.

See E2011 DIPPED HEADLAMPS

On the version with gas discharge headlamps, the adjustment of the light beam takes place automatically: the two buttons on the left side of the dashboard are not operational.

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, the data can be read (parameters, errors) or the available active diagnostic tests can be carried out.