3315564 - E2031 REAR FOG LAMPS - Functional description (Right hand drive)

Functional description

The rear fog lamps are controlled by electronic Check device M45 , that receives control signals from the switches and supplies the bulbs while also checking the various lines. The supply for Check device M45 arrives directly from the battery (MAXIFUSE CENTR of B5 ) at pins 1 and 6 of connector C, via fuse F11 of junction unit B1 . The supply controlled by the ignition (INT/A) arrives via fuse F1 of junction unit B1 at pin 9 of connector C; pin 7 of connector C is earthed C21. The supply for the rear fog lamps in modules F35 and F36 is supplied by the control unit M45 when, with the control switch H35 closed, the outside lights control H6 has the side lights switch closed (pin 4 and pin 6); pins 4, 5 and 10 of control unit M45 have the same signal. At the same time, a signal is sent from pin 3 of connector B to the unit H35 to light up the LED near the button indicating the 'rear fog lamps on' function. This LED of H35 is operated when the ignition is turned on (INT/A) via fuse F5 of junction unit B1 ; this line is responsible for lighting up control unit H35 when the ignition is on. The device M45 checks the efficiency of the bulbs and their connections: if faults are detected in the circuit, the 'lights fault' warning light on the instrument panel E50 , pin 7 of connector C, is lit from pin 6 of connector A. Pin 15 of connector A supplies an ignition-operated power supply to the panel through fuse F1 of the junction unit B1 . The control unit M45 is also connected, via pin 6 connector A, to the diagnostic multiple connector (see E8010).