145 - MiTo   1.4 16v TJet   DIPPED HEADLAMPS - DESCRIPTION   E2011   



DIPPED HEADLAMPS - DESCRIPTION DIPPED HEADLAMPS - FUNCTIONAL DESCRIPTION DIPPED HEADLAMPS - WIRING DIAGRAM DIPPED HEADLAMPS - COMPONENT LOCATION Print electrical function

DESCRIPTION

The vehicle is fitted with two GAS DISCHARGE headlamps.

The electronics in each of the two headlamps turns the gas discharge bulbs on and off at the times defined by the software and in accordance with international legislation. The system comprises an igniter for each headlamp located at the base of the bulb and a ballast located in the lower part of the headlamp.

The left lamp is the master control unit, whilst the right one performs a slave role.

The master lamp acquires the command for the dipped headlamps, the vehicle speed and from the potentiometers located on the wheel axles. Depending on the inputs, it directly controls the switching on of the left front lamp (dipped headlamps) and similarly controls the right one via a serial line.

For more details

    See E3080 HEADLAMP AGLINMENT CORRECTOR

With the dipped headlamps on, the switching to main beams causes the shutter in gas discharge bulb to be raised with a switch to main beams.

The dipped headlamps are turned on by the steering column switch unit by turning the ring nut forwards: the dipped headlamps are activated, the daytime lights go out and the side lights, dipped headlamps and number plate lights come on.

The switching on of the dipped beams is managed by the Body Computer.

On some versions, the dipped headlamps are also activated automatically by the dusk sensor.

This sensor, located on the windscreen under the interior rear view mirror, detects the variations in outside brightness depending on the light setting: the greater the sensitivity, the less external light is required to activate the exterior lights.

The setting of the dusk sensor can be adjusted using the instrument panel setup menu.

When the ring nut is turned in the opposite direction (AUTO position) the side lights and the dipped headlamps automatically come on simultaneously depending on the exterior brightness.

The flashing function is only possible with the sensor activated.

When the command to switch off is given by the sensor, the main beam headlamps are deactivated and then the side lights about 10 seconds later.

If a fault is detected with the dusk sensor, the "general failure" warning light is turned on and the information is shown simultaneously on the display.

The follow me home function allows the dipped headlights and the side lights to remain on even after the engine has been switched off (key in OFF position or extracted) for a period of 30 seconds or multiples thereof. The side lights warning light in the instrument panel signals that the lights have remained on. It is turned on using the lever in the same way as for activating the flasher within 2 minutes of the ignition being switched OFF: each time the lever is operated the length of time the lights remain on is increased by 30 seconds, up to a maximum of 210 seconds. Turning the key to the ON position or keeping the flasher lever pulled for more than 2 seconds eliminates the function.

In addition, at the Key-OFF the "Exterior courtesy lights" function turns on the dipped headlamps for a limited time when the doors or the tailgate is unlocked using the remote control.

The "Exterior courtesy lights" function can be activated or deactivated using the setup menu in the instrument panel.