The switching on of the roof light is managed by the Body Computer M001 which receives negative "door open" input signals respectively:

• at pin 50 of connector F (driver's front door, via the internal contact at the geared motor N050 - pin 4 -);

• at pin 51 of connector F (passenger side front door, via the internal contact at the geared motor N051 - pin 4 -);

The front roof light G010 is supplied at pin 2 directly by the Body Computer M001, through the "SBMT" line protected by fuse F32 of Body Computer M001 (pin 22 of connector E).

The front roof light G010 is connected, via pin 1, to the cab earth C100 and, via pin 3, to pin 8 of connector F of the Body Computer M001, which provides a suitable negative signal for the timed/dimmed switching on.

The Body Computer M001 receives a direct battery power supply at pin A of connector A; it also receives an ignition-operated supply (INT) at pin 2 of connector G.

It is connected to the earth of the central dashboard C022 (connector A) via pins 1 and 11 of connector G.