The "MODE" "+" and "-" controls, located on the left steering column switch unit lever +15, send an analogue signal to the instrument panel E50 at pin 5 of connector A.The dimmed power supply for the auxiliary instruments E20 leaves pin 5 of connector C of E50 (pin 2 of connector C provides the reference earth).The Body Computer M1 is connected via the CAN line to the instrument panel E50 from which it receives the "brightness adjustment" signal which is transmitted to the radio node and to the climate control system control unit See E1050 CAN CONNECTION LINES The power supply with the side lights switched on is provided by the Body Computer M1 - pin 40 of connector E for the cigar lighter light P50 and the rear current socket P51, in addition to the controls on the front courtesy light G10; the same lighting is sent, - pin 18 of connector H of M1 - to the controls for the radio P20 and to the preparation for the radio telephone D75.The lighting for the front door controls H44 and H50 is managed by the door control units M66 - at pin 11 of of connector D by the line protected by fuse F32 of the junction unit under the dashboard B2 , and connected via the CAN line to the Body Computer M1 .The ignition-controlled power supply line (INT), protected by fuse F35 of the junction unit under the dashboard B2, provides the lighting for the switch unit on the tunnel H35.The ignition-operated power supply line (INT), protected by fuse F49 of the junction unit under the dashboard B2, provides the lighting for the hazard warning lights control H20, the control panel to the left of the dashboard H90, the controls on the rear courtesy light G20, those on the seats I65 and I66 and the passenger side front door electric window switch H50.