The key ON (INT) supply line protected by fuse F49 of underfacia control unit B2 supplies lighting to the controls on the courtesy lights G10 and G20 and the hazard warning lights H20 , as well as to the steering wheel controls D47 and radio P20.The lighting of the front door controls H44 and H50 is managed by the driver side door control unit M66 and passenger side door control unit M67 , supplied at pin 11 of connector D by a line protected by fuse F32 of the underfacia control unit B2 , and connected via the CAN line to the Body Computer M1 .Similarly, the lighting of the rear door controls H53 and H54 is managed by the boot control unit M63 , supplied - at pin B8 of connector A - by a line protected by fuse F36 of the underfacia control unit B2 , and connected via the CAN line to the Body Computer M1 .The side light on power supply is supplied by Body Computer M1 - pin 18 of connector H and to the ashtray light G35 and also - pin 40 of connector E - to the cigar lighter P50 . The"MODE'' and "DIMMER'' of unit H90 , send a control to instrument panel E50 , pin 16 of connector B and 9 of connector A.Pin 12 of connector B of E50 sends a dimmed power supply to control unit H90 for tunnel controls H35 and air conditioner controls H90 .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 (or all-in-one radio-phone-navigation system) node and to the climate control system control unit See E1050 CAN CONNECTION LINES