COURTESY LIGHTS - Functional description

Functional description

The front courtesy light G010 receives a direct power supply from the battery through the line protected by fuse F39 housed inside the body computer node M001.

The internal switch A can be turned to three positions:

• position 0: the switching on or off of the front courtesy light depends on the state of the driver's front door switch I016;
• position 1: the front courtesy light is always off;
• position 2: the front courtesy light is always on.

The driver's front door switch I016 is the N.A. (normally open) type. The switch internal contact has two working states:

• position 0: driver's front door closed; courtesy light off
• position 1: driver's front door open; courtesy light on

In the case of intervention, the inertia switch I050 sends a negative signal (with reference to the earth C030) to pin 14 connector G of the body computer node M001, which switches on the front courtesy light G010.

The body computer node manages the switching on/off of the boot courtesy light G040. From connector G, the body computer node:

• at pin 18, supplies the bulb housed inside the boot courtesy light G040;
• at pin 5, receives the negative signal (with reference to earth C030) indicating the opening of the tailgate, coming from the switch on the exterior handle I033;
• at pin 13, receives the signal (with reference to earth C030) indicating the incomplete closing of the tailgate, coming from the exterior handle switch I033.

The switch on the exterior handle I033 refers to the earth C030 fastened to the left rear wheel arch (passenger compartment interior).

The opening of the driver's front door and the tailgate is displayed by the relevant warning light in the instrument panel E050. The command to switch on the warning light is supplied, via the CAN, by the body computer node (see wiring diagram E1050). The status of the doors is only signalled in the instrument panel when the ignition is on.

Door lock

Functional description

The front courtesy light G010 is supplied by the body computer node M001 (pin 10 connector F). The internal switch A can be turned to three positions:

• position 0: the switching on or off of the front courtesy light is managed by the body computer node;
• position 1: the front courtesy light is always off;
• position 2: the front courtesy light is always on.

The body computer node switches the front courtesy light on automatically in relation to the door signals coming from the door locks N050, N051, N055 and N056 in the following conditions:

• if the negative signal (with reference to earth C020 connector B) indicating the left front door opening is received at pin 23 connector H;
• if the negative signal (with reference to earth C020 connector B) indicating the right front door opening is received at pin 21 connector H;
• if the negative signal (with reference to earth C030) indicating the left rear door opening is received at pin 15 connector G;
• if the negative signal (with reference to earth C020 connector A) indicating the right rear door opening is received at pin 4 connector G;
• if the negative signal (with reference to earth C020 connector B) indicating the unlocking of the doors (central unlocking) is received at pin 13 connector H;
• if the negative signal (with reference to earth C030) indicating the operation of the inertia switch I050 is received at pin 14 connector G.

The connection between the body computer node and the front locks N050 and N051 passes through the door couplings D030 connector A and D031 connector A. Both are housed, in the passenger compartment area, in the lower part of the left or right front pillar (depending on the coupling involved), near the door cable duct. Door coupling D030 is located behind the body computer node.

The body computer node switches the front courtesy light off automatically in the following conditions:

• if the door locking signal (with reference to earth C020 connector B) (central locking) is received at pin 12 connector H;
• if the negative signal (with reference to earth C030), indicating the reactivation of the inertia switch I050, is no longer received at pin 14 connector G.

The body computer node also manages the switching on/off of the boot courtesy light G040. From connector G, the body computer node:

• at pin 18, supplies the bulb housed inside the boot courtesy light G040;
• at pin 5, receives the negative signal (with reference to earth C030) indicating the opening of the tailgate, coming from the switch on the exterior handle I033;
• at pin 13, receives the signal (with reference to earth C030) indicating the incomplete closing of the tailgate, coming from the exterior handle switch I033.

Earth C020 is fastened to the floor of the passenger compartment and is located near the right front wheel arch (footwell area). Earth C030 is fastened to the left rear wheel arch (passenger compartment interior).

The opening of any of the doors (front or rear) or the tailgate is displayed by the relevant warning light in the instrument panel E050. The command to switch the warning light on is supplied via the CAN by the body computer node See E1050 CAN CONNECTION LINES. The status of the doors is only signalled in the instrument panel when the ignition is on.