Scheme for switching on the ceiling lamps for interior and trunk lighting: 1 - trunk lighting; 2 - ceiling lamp for interior lighting; 3 - instrument cluster; 4 - signaling device of an open door; 5 - diode D8; 6 - trunk light switch; 7 - limit switch for interior lighting at the right rear door; 8 - limit switch for interior lighting at the left rear door; 9 - ceiling light limit switch at the right front door; 10 - ceiling light limit switch at the left front door