The vehicle is equipped with one extra-bright rear fog lamp housed in the left tail-light that can be used when visibility is poor.

The rear fog lamp is activated by means of a button on the control panel.

The enablement for turning on the rear fog lamp is dependent on the side lights and the dipped headlamps being switched on or the main beam headlamps or the fog lights.

A warning light in the instrument panel signals that the rear fog lamp has been switched on.

The body computer node:

• manages the switching on of the rear fog lamp;
• monitors the correct operation of the system, signalling any fault by turning on the appropriate lights failure warning light in the instrument panel.

The command for switching on the rear fog lamp is given by the special switch in the control panel H090.

The body computer node M001 receives a negative signal (reference earth C020 connector B) at pin 7 connector N.

• if the side lights [EL2010] and dipped headlamps engagement signal is received at pin 7 and 6 connector P (see wiring diagram E2011);

or

• if the main beam headlamps engagement signal is received at pin 5 connector P [EL2012].

Earth C020 is secured to the passenger compartment floor and is positioned near the right front wheel arch (footwell area).

Having received the signal and verified the conditions described above, the body computer node supplies the rear fog lamp housed in the right rear light cluster F031 from pin 13 connector F.

The right rear light cluster F031 has a reference earth C030, secured to the left rear wheel arch (passenger compartment interior).

The body computer node monitors the correct operation of the lights system signalling any failure by switching on the "lights failure" warning light in the instrument panel E050 in the following circumstances:

• open load;
• short circuit to earth;
• short circuit to + battery.

The body computer communicates, from pins 35, 36 connector I, via the CAN, with the instrument panel E050 (for more details),

  See E1050 CAN CONNECTION LINES 

managing the switching on of the "rear fog lamp" warning light.