The switching on of the roof lights 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 -);

• at pin 35 of connector F (right rear swing door, via the internal contact at the geared motor N054 - pin 4 -);

• and at pin 33 of connector F (right sliding door and, if present, left sliding door, through the right D185 – pin 3 of connector A - and left D185 - pin 3 of connector C - terminal boards).

The front roof light G010, the passenger area front roof lights G011 and the tailgate roof light G041 are supplied directly by the Body Computer M001, all at pin 2, through the "SBMT" line protected by fuse F32 of the Body Computer M001 (pins 22 and 23 of connector E respectively).

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 front passenger roof lights G011 A (left) and B (right) are connected, via pin 1, to the right rear earth C031 and, via pin 3, to pin 13 of connector F of the Body Computer M001, which provides a suitable negative signal for the timed/dimmed switching on.

Lastly, the tailgate roof light G041 is connected, via pin 1, to the right rear earth C031 and, via pin 3, to pin 58 of connector F of the Body Computer M001, which provides a suitable negative signal for the timed 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.