Automatic driving lights control

The following preconditions must be satisfied before the driving light can be activated automatically:

• Light switch in Position A
• Terminal 15 on
• Rain-light-solar-condensation sensor reports insufficient ambient brightness.

The rain-light-solar-condensation sensor is connected via LIN bus to the front electronic module (FEM). The front electronic module (FEM) carries out any prompt received to switch the driving lights on or off.

If no signal is received from the rain-light-solar-condensation sensor due to a fault and if automatic driving lights control is activated, the front electronic module (FEM) switches the driving lights on. The driving light that has been switched on by the automatic driving lights control, can be switched off again through the light switch or by the rain-light-solar-condensation sensor, provided that ambient lighting of adequate brightness is present.

Even after Terminal 15 off the side lights can remain on because they were activated by the automatic driving lights control system. The side lights are switched off automatically when the driver's door is opened. When the occupants exit the vehicle from another door, the side lights are switched off when the vehicle's locks are engaged.

The front electronic module (FEM) only switches the driving lights on when there is low ambient brightness. There may thus be a delayed activation of the driving lights when the vehicle enters a tunnel or a tree-shaded lane.