Pic. 7.20. Scheme of the lighting control system when driving a car: 1 - lighting control unit when driving; 2 – relay A; 3 - relay B; 4 - headlight relay; 5 - headlight (dipped beam); 6 - headlight (high beam); 7 - ignition switch; 8 - TNS relay; 9 - parking lamp / tail lamp / license plate lamp; 10 - front fog lamp relay; 11 - front fog lamp; 12 – the switch of forward antifog lamps and a back antifog lantern; 13 - lighting lights; 14 - headlight switch; 15 - headlight; 16 - short-term inclusion of high beam headlights
The driving light control system automatically controls the operation of the dipped beam headlights and TNS when the ignition is turned off through a special unit.