Scheme of the electric circuit of the interior lighting

1 - time delay element for turning off the interior lighting lamp, 2 - interior lighting lamp, 3 - front left door opening sensor, 4 - rear left door opening sensor, 5 - front right door opening sensor, 6 - rear right door opening sensor, 7 - rear interior lamp, 8 - trunk lamp switch, 9 - trunk lamp, 10 - cigarette lighter, 11 - clock illumination, 12 - ashtray illumination, 13 - engine compartment illumination, 14 - ventilation switch illumination, 15 - instrument cluster illumination with intensity control, 16 - glove box lighting, 17 - glove box lighting switch, 18 - instrument cluster, 19 - switch lighting